/* ====== Reset & base ====== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #05070f;
    --bg-2: #0a0f1e;
    --surface: rgba(20, 26, 45, 0.6);
    --surface-2: rgba(30, 40, 65, 0.5);
    --border: rgba(120, 160, 255, 0.12);
    --border-strong: rgba(120, 160, 255, 0.28);
    --text: #eef2ff;
    --text-muted: #9aa4c7;
    --text-dim: #6b7599;
    --accent: #60a5fa;
    --accent-2: #a78bfa;
    --accent-3: #22d3ee;
    --gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #22d3ee 100%);
    --gradient-warm: linear-gradient(135deg, #22d3ee, #60a5fa);
    --shadow: 0 20px 60px -20px rgba(96, 165, 250, 0.4);
    --shadow-strong: 0 40px 120px -40px rgba(96, 165, 250, 0.6);
    --radius: 20px;
    --radius-lg: 28px;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    perspective: 1500px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ====== Animated background ====== */
.bg-gradient {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(96, 165, 250, 0.15), transparent 60%),
        radial-gradient(ellipse 70% 50% at 80% 40%, rgba(167, 139, 250, 0.12), transparent 60%),
        radial-gradient(ellipse 60% 60% at 50% 90%, rgba(34, 211, 238, 0.10), transparent 60%),
        linear-gradient(180deg, #05070f 0%, #080d1e 50%, #05070f 100%);
    z-index: -3;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(120, 160, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120, 160, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent 70%);
    z-index: -2;
}

.bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: orbFloat 20s ease-in-out infinite;
}
.orb-1 { width: 500px; height: 500px; background: radial-gradient(circle, #60a5fa, transparent); top: -100px; left: -100px; }
.orb-2 { width: 600px; height: 600px; background: radial-gradient(circle, #a78bfa, transparent); top: 40%; right: -200px; animation-delay: -7s; }
.orb-3 { width: 450px; height: 450px; background: radial-gradient(circle, #22d3ee, transparent); bottom: -100px; left: 30%; animation-delay: -14s; }

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -30px) scale(1.1); }
    66% { transform: translate(-30px, 50px) scale(0.95); }
}

/* ====== Navigation ====== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px 0;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: rgba(5, 7, 15, 0.6);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    transition: transform 0.3s ease;
}
.logo:hover { transform: scale(1.05); }
.logo-icon {
    width: 36px; height: 36px;
    display: grid; place-items: center;
    background: var(--gradient);
    border-radius: 10px;
    color: white;
    box-shadow: 0 8px 30px rgba(96, 165, 250, 0.4);
}
.logo-icon svg { width: 22px; height: 22px; }
.logo-text { color: var(--text); }
.logo-accent {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-links a {
    padding: 10px 18px;
    color: var(--text-muted);
    font-size: 0.92rem;
    font-weight: 500;
    border-radius: 10px;
    transition: all 0.25s ease;
    position: relative;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.active {
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
}

.nav-cta {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    background: var(--gradient) !important;
    color: white !important;
    font-weight: 600 !important;
    padding: 10px 18px !important;
    box-shadow: 0 8px 30px rgba(96, 165, 250, 0.35);
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(96, 165, 250, 0.55) !important;
    background: var(--gradient) !important;
}

/* ====== Sections ====== */
section { padding: 140px 32px; max-width: 1400px; margin: 0 auto; position: relative; }
@media (min-width: 1024px) {
    section { padding: 160px 40px; }
}

.section-header {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 80px;
}
.section-tag {
    display: inline-block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 100px;
    margin-bottom: 24px;
    background: var(--surface);
}
.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}
.section-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    display: inline-block;
}

/* ====== Hero ====== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
    padding-top: 160px;
    padding-bottom: 100px;
    position: relative;
}
@media (min-width: 1024px) {
    .hero { grid-template-columns: 1.1fr 1fr; }
}

.hero-content { position: relative; z-index: 2; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 28px;
    transition: transform 0.3s ease;
}
.badge:hover { transform: translateY(-2px); }
.badge-dot {
    width: 8px; height: 8px;
    background: #22d3ee;
    border-radius: 50%;
    box-shadow: 0 0 12px #22d3ee;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}
.badge-light { background: rgba(255,255,255,0.08); }

.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.035em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 560px;
    margin-bottom: 40px;
}
.hero-subtitle strong { color: var(--text); font-weight: 600; }

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}
.btn-lg { padding: 18px 32px; font-size: 1rem; }
.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 10px 40px rgba(96, 165, 250, 0.4);
}
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #a78bfa, #60a5fa, #22d3ee);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 60px rgba(96, 165, 250, 0.55);
}
.btn-primary:hover::before { opacity: 1; }
.btn-ghost {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
}
.btn-ghost:hover {
    background: var(--surface-2);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text);
    padding: 12px 20px;
    font-size: 0.9rem;
    margin-top: 20px;
    width: 100%;
    justify-content: center;
}
.btn-outline:hover { background: var(--surface); border-color: var(--accent); }

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 24px 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    max-width: 560px;
}
.stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.stat-sep { width: 1px; height: 40px; background: var(--border); }

/* ====== 3D Floating AC ====== */
.hero-visual {
    position: relative;
    height: 500px;
    display: grid;
    place-items: center;
    transform-style: preserve-3d;
}

.floating-scene {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    animation: sceneFloat 8s ease-in-out infinite;
}
@keyframes sceneFloat {
    0%, 100% { transform: translateY(0) rotateX(5deg) rotateY(-8deg); }
    50% { transform: translateY(-15px) rotateX(3deg) rotateY(-12deg); }
}

.ac-unit {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 380px;
    height: 140px;
    transform-style: preserve-3d;
}
.ac-body {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(240,245,255,0.95));
    border-radius: 20px 20px 24px 24px;
    box-shadow:
        0 40px 100px -20px rgba(96, 165, 250, 0.6),
        0 0 0 1px rgba(255,255,255,0.1),
        inset 0 1px 0 rgba(255,255,255,0.6);
    padding: 20px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translateZ(20px);
}
.ac-vent {
    position: absolute;
    bottom: 8px; left: 20px; right: 20px;
    height: 8px;
    background: linear-gradient(180deg, #2a3855, #1a2540);
    border-radius: 4px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.4);
}
.ac-display {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 16px;
    background: linear-gradient(135deg, #05070f, #0a0f1e);
    border-radius: 10px;
    color: #22d3ee;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.6);
}
.ac-temp {
    font-family: 'Space Grotesk', monospace;
    font-size: 1.6rem;
    font-weight: 600;
    text-shadow: 0 0 12px #22d3ee;
    line-height: 1;
}
.ac-mode {
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: #60a5fa;
    display: flex;
    align-items: center;
    gap: 4px;
}
.ac-dot {
    width: 5px; height: 5px;
    background: #22d3ee;
    border-radius: 50%;
    box-shadow: 0 0 6px #22d3ee;
    animation: pulse 1.5s infinite;
}
.ac-lines {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ac-lines span {
    display: block;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #94a3b8, #cbd5e1);
    border-radius: 2px;
}

.cold-wave {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(34, 211, 238, 0.4), transparent 70%);
    filter: blur(8px);
    animation: coldFlow 3s ease-in-out infinite;
}
.wave-1 { animation-delay: 0s; }
.wave-2 { animation-delay: 1s; width: 260px; }
.wave-3 { animation-delay: 2s; width: 320px; }
@keyframes coldFlow {
    0% { opacity: 0; transform: translateX(-50%) translateY(0) scale(0.8); }
    50% { opacity: 0.6; }
    100% { opacity: 0; transform: translateX(-50%) translateY(80px) scale(1.4); }
}

.floating-tags { position: absolute; inset: 0; }
.tag {
    position: absolute;
    padding: 8px 14px;
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text);
    backdrop-filter: blur(10px);
    animation: tagFloat 6s ease-in-out infinite;
    transform-style: preserve-3d;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.tag-1 { top: 10%; left: 5%; animation-delay: 0s; }
.tag-2 { top: 20%; right: 5%; animation-delay: -1.5s; }
.tag-3 { bottom: 25%; left: 8%; animation-delay: -3s; background: var(--gradient); color: white; border: none; }
.tag-4 { bottom: 12%; right: 10%; animation-delay: -4.5s; }
@keyframes tagFloat {
    0%, 100% { transform: translateY(0) translateZ(30px); }
    50% { transform: translateY(-15px) translateZ(50px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(180deg, transparent, var(--accent));
    animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: scaleY(1); transform-origin: top; }
    50% { transform: scaleY(0.5); transform-origin: bottom; }
}

/* ====== Solutions grid ====== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    perspective: 1500px;
}

.solution-card {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.solution-card .card-inner {
    position: relative;
    padding: 36px 28px;
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
}
.solution-card:hover .card-inner {
    border-color: var(--border-strong);
    transform: translateZ(30px);
}
.card-glow {
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(96, 165, 250, 0.15), transparent 40%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.solution-card:hover .card-glow { opacity: 1; }
.solution-card.featured .card-inner {
    border-color: var(--border-strong);
    background: linear-gradient(180deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.05));
}
.card-badge {
    position: absolute;
    top: 20px; right: 20px;
    padding: 4px 10px;
    background: var(--gradient);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 100px;
    box-shadow: 0 4px 15px rgba(96, 165, 250, 0.4);
}
.card-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}
.card-icon {
    width: 64px; height: 64px;
    margin-bottom: 20px;
    color: var(--accent);
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(167, 139, 250, 0.1));
    border-radius: 16px;
    transition: transform 0.4s ease;
}
.solution-card:hover .card-icon {
    transform: rotateY(180deg) scale(1.1);
    color: var(--accent-2);
}
.card-icon svg { width: 40px; height: 40px; }
.solution-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.card-desc {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.95rem;
}
.card-desc strong { color: var(--text); font-weight: 600; }
.card-features { list-style: none; margin-bottom: 24px; }
.card-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.check {
    display: inline-grid;
    place-items: center;
    width: 20px; height: 20px;
    background: rgba(34, 211, 238, 0.15);
    color: #22d3ee;
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
}
.card-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
    background: rgba(0,0,0,0.2);
    border-radius: 12px;
    margin-bottom: 24px;
}
.meta-row {
    display: grid;
    grid-template-columns: 90px 1fr;
    align-items: center;
    gap: 12px;
    font-size: 0.8rem;
}
.meta-label { color: var(--text-dim); }
.meta-bar {
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}
.meta-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 3px;
    animation: fillBar 1.4s cubic-bezier(0.23, 1, 0.32, 1) forwards;
    transform-origin: left;
}
@keyframes fillBar {
    from { transform: scaleX(0); }
}
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.92rem;
    margin-top: auto;
    transition: gap 0.3s ease;
}
.card-link:hover { gap: 12px; color: var(--accent-2); }

/* ====== Partner disclosure (transparent) ====== */
.partner-section { padding: 60px 32px; max-width: 1200px; margin: 0 auto; }
.partner-disclosure {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
    padding: 22px 28px;
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}
.partner-disclosure:hover {
    border-color: var(--border-strong);
    border-left-color: var(--accent);
    transform: translateY(-2px);
}
.partner-mark {
    width: 48px; height: 48px;
    display: grid;
    place-items: center;
    background: var(--gradient);
    border-radius: 12px;
    color: white;
    box-shadow: 0 8px 24px rgba(96, 165, 250, 0.35);
    flex-shrink: 0;
}
.partner-mark svg { width: 26px; height: 26px; }
.partner-label {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 6px;
}
.partner-body p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.55;
    margin: 0;
}
.partner-body strong { color: var(--text); font-weight: 600; }
@media (max-width: 720px) {
    .partner-disclosure { grid-template-columns: 1fr; text-align: left; }
    .partner-disclosure .btn { justify-self: start; }
}

/* ====== Trust / Recommendation card (legacy, non utilisé actuellement) ====== */
.trust { padding: 100px 32px; max-width: 1400px; margin: 0 auto; }
.trust-card {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.trust-inner {
    position: relative;
    padding: 48px;
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(24px);
    overflow: hidden;
    box-shadow: var(--shadow-strong);
}
.trust-glow {
    position: absolute;
    top: -50%; left: -20%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.25), transparent 60%);
    filter: blur(60px);
    pointer-events: none;
    animation: glowFloat 10s ease-in-out infinite;
}
.trust-head {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
    padding-bottom: 32px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--border);
    position: relative;
    z-index: 2;
}
@media (max-width: 720px) {
    .trust-inner { padding: 28px; }
    .trust-head { grid-template-columns: 1fr; text-align: center; justify-items: center; }
}
.trust-logo {
    width: 64px; height: 64px;
    display: grid;
    place-items: center;
    background: var(--gradient);
    border-radius: 18px;
    color: white;
    box-shadow: 0 15px 40px rgba(96, 165, 250, 0.45);
}
.trust-logo svg { width: 34px; height: 34px; }
.trust-label {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 6px;
}
.trust-name {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    line-height: 1;
}
.trust-stars {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #fbbf24;
    font-size: 1.05rem;
    filter: drop-shadow(0 0 6px rgba(251, 191, 36, 0.4));
}
.trust-stars em {
    margin-left: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: normal;
    filter: none;
}
.trust-reasons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    position: relative;
    z-index: 2;
}
.reason {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.35s ease;
}
.reason:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
    background: rgba(96, 165, 250, 0.05);
}
.reason-icon {
    width: 44px; height: 44px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(167, 139, 250, 0.1));
    border-radius: 12px;
    color: var(--accent);
    margin-bottom: 14px;
}
.reason-icon svg { width: 22px; height: 22px; }
.reason h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
}
.reason p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.55;
}
.reason p a {
    color: var(--accent);
    border-bottom: 1px solid rgba(96, 165, 250, 0.3);
    transition: all 0.2s ease;
}
.reason p a:hover { color: var(--accent-2); border-bottom-color: var(--accent-2); }
.trust-footer {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px dashed var(--border);
    text-align: center;
    position: relative;
    z-index: 2;
}
.trust-independent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 100px;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.trust-independent::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 8px #4ade80;
}

/* ====== Promo strip ====== */
.promo-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto 40px;
    padding: 16px 28px;
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.12), rgba(96, 165, 250, 0.12));
    border: 1px solid rgba(251, 191, 36, 0.25);
    border-radius: 100px;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    flex-wrap: wrap;
    text-align: center;
}
.promo-strip:hover {
    transform: translateY(-2px);
    border-color: rgba(251, 191, 36, 0.5);
    box-shadow: 0 20px 60px -20px rgba(251, 191, 36, 0.3);
}
.promo-pulse {
    width: 10px; height: 10px;
    background: #fbbf24;
    border-radius: 50%;
    box-shadow: 0 0 12px #fbbf24;
    animation: pulse 1.6s infinite;
    flex-shrink: 0;
}
.promo-text { color: var(--text); font-size: 0.95rem; }
.promo-text strong {
    background: linear-gradient(135deg, #fbbf24, #f472b6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}
.promo-arrow {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.92rem;
    white-space: nowrap;
}

/* ====== Comparateur ====== */
.compare-tool {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
}

.compare-selectors {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    align-items: end;
    margin-bottom: 40px;
}
@media (max-width: 768px) {
    .compare-selectors { grid-template-columns: 1fr; }
}
.compare-group label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-dim);
    margin-bottom: 10px;
}
.compare-select {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 6px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.pill {
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.25s ease;
    flex: 1;
    min-width: fit-content;
}
.pill:hover { color: var(--text); background: var(--surface-2); }
.pill.active {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(96, 165, 250, 0.4);
}
.compare-vs {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dim);
    padding: 0 10px;
    align-self: center;
    margin-top: 30px;
}

.compare-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (max-width: 768px) {
    .compare-panels { grid-template-columns: 1fr; }
}
.compare-panel {
    padding: 28px;
    background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
}
.compare-panel:hover {
    transform: translateY(-4px) rotateX(-2deg);
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
}
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}
.panel-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}
.panel-icon {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
}
.panel-body { display: flex; flex-direction: column; gap: 12px; }
.panel-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.9rem;
}
.panel-row:last-child { border-bottom: none; }
.panel-label { color: var(--text-muted); }
.panel-row strong { color: var(--text); font-weight: 600; }

/* ====== Advantages 3D ====== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    perspective: 1500px;
}
.advantage {
    padding: 40px 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
    backdrop-filter: blur(20px);
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}
.advantage:hover {
    transform: translateY(-8px) rotateX(-4deg) rotateY(2deg);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-strong);
}
.adv-icon-3d {
    width: 90px; height: 90px;
    margin: 0 auto 24px;
    position: relative;
    display: grid;
    place-items: center;
    color: var(--accent);
}
.adv-icon-3d svg {
    width: 44px; height: 44px;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 10px currentColor);
}
.adv-icon-3d .ring {
    position: absolute;
    inset: 0;
    border: 2px solid var(--border-strong);
    border-radius: 50%;
    animation: ringRotate 8s linear infinite;
}
.adv-icon-3d .ring-2 {
    inset: -12px;
    border-style: dashed;
    animation: ringRotate 12s linear infinite reverse;
    opacity: 0.5;
}
@keyframes ringRotate {
    to { transform: rotate(360deg); }
}
.advantage h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}
.advantage p { color: var(--text-muted); font-size: 0.92rem; }

.icon-cool { color: #22d3ee; }
.icon-eco { color: #4ade80; }
.icon-silent { color: #a78bfa; }
.icon-air { color: #60a5fa; }
.icon-wifi { color: #f472b6; }
.icon-value { color: #fbbf24; }

/* ====== Quiz ====== */
.quiz-box {
    max-width: 780px;
    margin: 0 auto;
    padding: 40px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    min-height: 480px;
}
.quiz-progress {
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    margin-bottom: 32px;
    overflow: hidden;
}
.quiz-progress-fill {
    height: 100%;
    width: 33.33%;
    background: var(--gradient);
    border-radius: 2px;
    transition: width 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}
.quiz-slides { position: relative; }
.quiz-slide {
    display: none;
    animation: slideFade 0.5s ease;
}
.quiz-slide.active { display: block; }
@keyframes slideFade {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}
.quiz-step {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 12px;
}
.quiz-slide h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 28px;
}
.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.quiz-opt {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border);
    border-radius: 16px;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    color: var(--text);
    width: 100%;
}
.quiz-opt:hover {
    border-color: var(--accent);
    background: rgba(96, 165, 250, 0.08);
    transform: translateX(8px);
}
.opt-icon {
    display: grid;
    place-items: center;
    min-width: 50px;
    height: 50px;
    background: var(--gradient);
    color: white;
    border-radius: 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 8px 20px rgba(96, 165, 250, 0.3);
}
.opt-text small { color: var(--text-muted); font-size: 0.85rem; }
.quiz-result { text-align: center; padding: 20px 0; }
.result-icon {
    font-size: 3rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    animation: resultPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes resultPop {
    from { opacity: 0; transform: scale(0.5) rotateZ(-15deg); }
    to { opacity: 1; transform: scale(1) rotateZ(0); }
}
.result-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
#result-desc { color: var(--text-muted); margin-bottom: 28px; }
.result-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

/* ====== Extras (Airzone, chauffe-eau, etc.) ====== */
.extras-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    perspective: 1500px;
}
.extra-card {
    display: block;
    text-decoration: none;
    color: inherit;
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
.extra-inner {
    position: relative;
    padding: 36px 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
}
.extra-card:hover .extra-inner {
    border-color: var(--border-strong);
    background: var(--surface-2);
}
.extra-glow {
    position: absolute;
    top: -60%; right: -40%;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.2), transparent 60%);
    filter: blur(40px);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}
.extra-card:hover .extra-glow { opacity: 1; }
.extra-card.highlight .extra-inner {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.08), rgba(244, 114, 182, 0.06));
    border-color: rgba(251, 191, 36, 0.3);
}
.extra-badge {
    position: absolute;
    top: 20px; right: 20px;
    padding: 4px 12px;
    background: linear-gradient(135deg, #fbbf24, #f472b6);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 100px;
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
}
.extra-icon {
    width: 72px; height: 72px;
    margin-bottom: 20px;
    color: var(--accent);
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.12), rgba(167, 139, 250, 0.08));
    border-radius: 18px;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.extra-card:hover .extra-icon {
    transform: rotateY(180deg) scale(1.08);
    color: var(--accent-3);
}
.extra-card.highlight .extra-icon {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(244, 114, 182, 0.1));
    color: #fbbf24;
}
.extra-icon svg { width: 44px; height: 44px; }
.extra-inner h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.extra-inner p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}
.extra-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.92rem;
    margin-top: auto;
    transition: gap 0.3s ease;
}
.extra-card:hover .extra-link { gap: 12px; color: var(--accent-2); }
.extra-card.highlight .extra-link { color: #fbbf24; }
.extra-card.highlight:hover .extra-link { color: #f472b6; }

/* ====== Reviews strip ====== */
.reviews-strip { padding: 40px 32px 100px; max-width: 1400px; margin: 0 auto; }
.reviews-card {
    display: block;
    text-decoration: none;
    color: inherit;
    max-width: 900px;
    margin: 0 auto;
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
.reviews-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 32px;
    align-items: center;
    padding: 32px 40px;
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.08), rgba(96, 165, 250, 0.08));
    border: 1px solid rgba(251, 191, 36, 0.25);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}
.reviews-card:hover .reviews-inner {
    border-color: rgba(251, 191, 36, 0.5);
    box-shadow: 0 20px 60px -20px rgba(251, 191, 36, 0.3);
}
.reviews-stars {
    display: flex;
    gap: 2px;
    font-size: 1.6rem;
    color: #fbbf24;
    filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.5));
}
.reviews-stars span { animation: starPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) backwards; }
.reviews-stars span:nth-child(1) { animation-delay: 0.1s; }
.reviews-stars span:nth-child(2) { animation-delay: 0.2s; }
.reviews-stars span:nth-child(3) { animation-delay: 0.3s; }
.reviews-stars span:nth-child(4) { animation-delay: 0.4s; }
.reviews-stars span:nth-child(5) { animation-delay: 0.5s; }
@keyframes starPop {
    from { opacity: 0; transform: scale(0) rotate(-30deg); }
    to { opacity: 1; transform: scale(1) rotate(0); }
}
.reviews-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}
.reviews-content p { color: var(--text-muted); font-size: 0.92rem; }
.reviews-content strong { color: var(--text); }
.reviews-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: gap 0.3s ease;
}
.reviews-card:hover .reviews-cta { gap: 12px; }
@media (max-width: 700px) {
    .reviews-inner { grid-template-columns: 1fr; text-align: center; justify-items: center; padding: 28px; }
}

/* ====== CTA contact block ====== */
.cta-contact { margin-top: 28px; }
.cta-mail {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 100px;
    transition: all 0.25s ease;
}
.cta-mail:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.cta-note {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.04);
    border-radius: 100px;
    color: var(--text-dim);
    font-size: 0.85rem;
}
.cta-note::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 8px #4ade80;
}

/* ====== Timeline ====== */
.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    perspective: 1500px;
}
.timeline-item {
    padding: 32px 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
    position: relative;
}
.timeline-item:hover {
    transform: translateY(-6px) rotateY(3deg);
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
}
.timeline-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}
.timeline-content h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.timeline-content p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 14px; }
.mini-link {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.88rem;
    transition: opacity 0.2s;
}
.mini-link:hover { opacity: 0.8; }

/* ====== FAQ ====== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(12px);
}
.faq-item[open] { border-color: var(--border-strong); background: var(--surface-2); }
.faq-item summary {
    padding: 22px 28px;
    font-weight: 600;
    font-size: 1.02rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent);
    transition: transform 0.3s ease;
    font-weight: 300;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--accent); }
.faq-item p {
    padding: 0 28px 24px;
    color: var(--text-muted);
    font-size: 0.95rem;
}
.faq-item p a {
    color: var(--accent);
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.faq-item p a:hover { border-bottom-color: var(--accent); }

/* ====== Final CTA ====== */
.final-cta { padding: 100px 32px 140px; }
.cta-inner {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    padding: 80px 40px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(167, 139, 250, 0.15), rgba(34, 211, 238, 0.1));
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-strong);
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
}
.cta-glow {
    position: absolute;
    top: -50%; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.3), transparent 60%);
    filter: blur(80px);
    pointer-events: none;
    animation: glowFloat 8s ease-in-out infinite;
}
@keyframes glowFloat {
    0%, 100% { transform: translateX(-50%) translateY(0) scale(1); }
    50% { transform: translateX(-50%) translateY(30px) scale(1.1); }
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin: 24px 0 16px;
}
.cta-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 560px;
    margin: 0 auto 40px;
}
.cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

/* ====== Footer ====== */
.footer {
    padding: 80px 32px 40px;
    max-width: 1400px;
    margin: 0 auto;
    border-top: 1px solid var(--border);
}
.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}
@media (max-width: 768px) {
    .footer-inner { grid-template-columns: 1fr; }
}
.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 320px;
    margin-top: 20px;
    margin-bottom: 24px;
}
.footer-socials {
    display: flex;
    gap: 10px;
}
.social {
    width: 42px; height: 42px;
    display: grid;
    place-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-muted);
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}
.social svg { width: 18px; height: 18px; }
.social:hover {
    color: white;
    background: var(--gradient);
    border-color: transparent;
    transform: translateY(-3px) rotate(-6deg);
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.4);
}
.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
@media (max-width: 640px) {
    .footer-cols { grid-template-columns: repeat(2, 1fr); }
}
.footer-col h5 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-dim);
    margin-bottom: 16px;
    font-weight: 600;
}
.footer-col a {
    display: block;
    color: var(--text-muted);
    font-size: 0.92rem;
    padding: 6px 0;
    transition: color 0.2s ease, transform 0.2s ease;
}
.footer-col a:hover {
    color: var(--accent);
    transform: translateX(3px);
}
.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    color: var(--text-dim);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 10px;
}
.footer-bottom a { color: var(--accent); }

/* ====== Reveal on scroll ====== */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}
[data-reveal].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ====== Responsive ====== */
@media (max-width: 900px) {
    .nav-links a:not(.nav-cta) { display: none; }
    section { padding: 100px 20px; }
    .hero { padding-top: 120px; padding-bottom: 60px; }
    .hero-visual { height: 400px; }
    .ac-unit { width: 300px; height: 110px; }
    .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px; }
    .stat-sep { display: none; }
    .compare-tool { padding: 24px; }
    .compare-vs { margin: 0; text-align: center; }
    .cta-inner { padding: 50px 24px; }
    .navbar { padding: 14px 0; }
    .nav-container { padding: 0 20px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.2rem; }
    .btn { width: 100%; justify-content: center; }
    .hero-cta { flex-direction: column; }
    .ac-unit { width: 260px; height: 100px; }
    .ac-temp { font-size: 1.3rem; }
    .tag { font-size: 0.7rem; padding: 6px 10px; }
}

/* ====== SEO Article pages ====== */
.article-hero {
    padding-top: 180px;
    padding-bottom: 60px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}
.article-hero .badge { margin-bottom: 32px; }
.article-hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.2rem, 5.5vw, 3.8rem);
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: -0.035em;
    margin-bottom: 24px;
}
.article-hero .lede {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto 32px;
}
.article-hero-meta {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    padding: 12px 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;
    backdrop-filter: blur(12px);
    font-size: 0.88rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    justify-content: center;
}
.article-hero-meta strong { color: var(--text); font-weight: 600; }
.meta-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--text-dim); }

.article-layout {
    display: grid;
    grid-template-columns: 240px 1fr 300px;
    gap: 60px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 32px 100px;
}
@media (max-width: 1100px) {
    .article-layout { grid-template-columns: 1fr; gap: 40px; }
    .article-toc, .article-aside { position: static !important; }
}

.article-toc {
    position: sticky;
    top: 100px;
    align-self: start;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}
.toc-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.toc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.toc-list a {
    display: block;
    padding: 8px 12px;
    color: var(--text-muted);
    font-size: 0.88rem;
    border-radius: 8px;
    border-left: 2px solid transparent;
    transition: all 0.25s ease;
}
.toc-list a:hover { color: var(--text); background: var(--surface); border-left-color: var(--accent); }
.toc-list a.active { color: var(--accent); border-left-color: var(--accent); }

.article-content {
    max-width: 780px;
    font-size: 1.02rem;
}
.article-content section { padding: 40px 0; max-width: none; margin: 0; }
.article-content section:first-child { padding-top: 0; }
.article-content h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 2.3rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.15;
    margin-bottom: 20px;
    scroll-margin-top: 100px;
}
.article-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin: 32px 0 14px;
    color: var(--text);
}
.article-content p {
    color: var(--text-muted);
    margin-bottom: 18px;
    line-height: 1.75;
}
.article-content strong { color: var(--text); font-weight: 600; }
.article-content a {
    color: var(--accent);
    font-weight: 500;
    border-bottom: 1px solid rgba(96, 165, 250, 0.3);
    transition: all 0.2s ease;
}
.article-content a:hover { color: var(--accent-2); border-bottom-color: var(--accent-2); }
.article-content ul, .article-content ol {
    color: var(--text-muted);
    margin: 0 0 24px 22px;
    line-height: 1.75;
}
.article-content li { margin-bottom: 8px; }
.article-content li::marker { color: var(--accent); }

.callout {
    padding: 24px 28px;
    margin: 32px 0;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(167, 139, 250, 0.05));
    border: 1px solid var(--border-strong);
    border-left: 4px solid var(--accent);
    border-radius: 12px;
    backdrop-filter: blur(12px);
}
.callout-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
    font-size: 1.05rem;
}
.callout p { margin-bottom: 0; }
.callout.warm {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.08), rgba(244, 114, 182, 0.05));
    border-left-color: #fbbf24;
}
.callout.cool {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.08), rgba(96, 165, 250, 0.05));
    border-left-color: #22d3ee;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin: 32px 0;
}
.stat-card {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    text-align: center;
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}
.stat-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.stat-card-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}
.stat-card-label {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 32px 0;
}
@media (max-width: 600px) {
    .pros-cons { grid-template-columns: 1fr; }
}
.pros, .cons {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    backdrop-filter: blur(12px);
}
.pros { border-left: 4px solid #4ade80; }
.cons { border-left: 4px solid #f472b6; }
.pros h4, .cons h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.pros ul, .cons ul { margin: 0 0 0 20px; }

.compare-table {
    width: 100%;
    margin: 32px 0;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(12px);
    font-size: 0.92rem;
}
.compare-table th, .compare-table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.compare-table th {
    background: rgba(255,255,255,0.03);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    color: var(--text);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td { color: var(--text-muted); }
.compare-table td strong { color: var(--text); }
.compare-table tr:hover td { background: rgba(255,255,255,0.02); }

.inline-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 28px;
    margin: 32px 0;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.12), rgba(167, 139, 250, 0.08));
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}
.inline-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.inline-cta-text strong {
    display: block;
    font-size: 1.05rem;
    color: var(--text);
    margin-bottom: 4px;
}
.inline-cta-text span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.article-aside {
    position: sticky;
    top: 100px;
    align-self: start;
}
.aside-card {
    padding: 28px;
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    margin-bottom: 20px;
}
.aside-card h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    margin-bottom: 12px;
}
.aside-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
.aside-card .btn { width: 100%; justify-content: center; padding: 12px 18px; font-size: 0.9rem; }
.aside-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}
.aside-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: all 0.25s ease;
}
.aside-links a:hover {
    color: var(--text);
    border-color: var(--border-strong);
    background: rgba(96, 165, 250, 0.08);
    transform: translateX(4px);
}
.aside-links a::after {
    content: '↗';
    color: var(--accent);
    font-size: 1rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px 100px;
}
.related-card {
    display: block;
    padding: 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    backdrop-filter: blur(12px);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}
.related-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
}
.related-tag {
    display: inline-block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}
.related-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 8px;
}
.related-card p { color: var(--text-muted); font-size: 0.92rem; }
.related-arrow {
    position: absolute;
    top: 24px; right: 24px;
    color: var(--text-dim);
    transition: transform 0.3s ease, color 0.3s ease;
}
.related-card:hover .related-arrow { color: var(--accent); transform: translate(4px, -4px); }

/* Theme variations per page */
.theme-gainable { --accent: #22d3ee; --accent-2: #60a5fa; --gradient: linear-gradient(135deg, #22d3ee, #60a5fa 60%, #a78bfa); }
.theme-multi { --accent: #a78bfa; --accent-2: #f472b6; --gradient: linear-gradient(135deg, #a78bfa, #f472b6 60%, #fbbf24); }
.theme-pac { --accent: #4ade80; --accent-2: #22d3ee; --gradient: linear-gradient(135deg, #4ade80, #22d3ee 60%, #60a5fa); }

/* ====== Prefers reduced motion ====== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}