/* ============================================
   VOIAX ROBOT – AccessFuel-Inspired Dark Theme
   Deep Navy / Blue / Purple Glow
   ============================================ */

:root {
    --bg-primary: #060a13;
    --bg-secondary: #0b1120;
    --bg-card: #0f1729;
    --bg-card-hover: #141e35;
    --accent: #3b82f6;
    --accent-dim: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.35);
    --purple: #8b5cf6;
    --purple-glow: rgba(139, 92, 246, 0.3);
    --cyan: #22d3ee;
    --pink: #ec4899;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: rgba(59, 130, 246, 0.12);
    --border-hover: rgba(59, 130, 246, 0.3);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

::selection {
    background: var(--accent);
    color: #fff;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 3px; }

/* ============================================
   NAVBAR
   ============================================ */
#mainNav {
    background: rgba(6, 10, 19, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
    transition: all 0.35s ease;
    z-index: 1000;
}

#mainNav.scrolled {
    padding: 8px 0;
    background: rgba(6, 10, 19, 0.95);
    box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.brand-logo {
    height: 32px;
    filter: brightness(1.1);
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary) !important;
    transition: color 0.3s ease;
    padding: 8px 14px !important;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent) !important;
}

.btn-lang {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--border-color);
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 8px;
    padding: 6px 14px;
    transition: all 0.3s;
}

.btn-lang:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--accent);
    color: #fff;
}

/* ============================================
   HERO SLIDER
   ============================================ */
#hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-slider .slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.2s ease;
}

.hero-slider .slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(180deg, rgba(6,10,19,0.6) 0%, rgba(6,10,19,0.3) 40%, rgba(6,10,19,0.8) 100%),
        linear-gradient(90deg, rgba(6,10,19,0.9) 0%, transparent 60%);
}

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

.hero-badge-wrap {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border-radius: 24px;
}

.hero-badge.badge-outline {
    background: transparent;
    border: 1px solid var(--border-hover);
    color: var(--accent);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    color: #fff;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--purple), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

/* Primary glow button */
.btn-primary-glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 34px;
    font-family: var(--font-display);
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.35s ease;
    box-shadow: 0 4px 25px var(--accent-glow);
}

.btn-primary-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px var(--accent-glow);
    color: #fff;
}

/* Ghost button */
.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    font-family: var(--font-display);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    text-decoration: none;
    transition: color 0.3s;
    cursor: pointer;
}

.btn-ghost:hover {
    color: var(--accent);
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 100px;
    right: 40px;
    z-index: 5;
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.05);
    color: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.slider-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.slider-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    cursor: pointer;
    transition: all 0.3s;
}

.slider-dots .dot.active {
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
    transform: scale(1.2);
}

/* ============================================
   FEATURE TAGS SCROLLING BAR
   ============================================ */
.feature-tags-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 5;
    background: rgba(11, 17, 32, 0.85);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-color);
    padding: 14px 0;
    overflow: hidden;
}

.tags-track {
    display: flex;
    gap: 12px;
    width: max-content;
    animation: scrollTags 40s linear infinite;
}

.tags-track:hover {
    animation-play-state: paused;
}

@keyframes scrollTags {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.ftag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    white-space: nowrap;
    transition: all 0.3s;
    flex-shrink: 0;
}

.ftag:hover {
    color: var(--accent);
    border-color: var(--border-hover);
    background: rgba(59, 130, 246, 0.12);
}

.ftag i {
    font-size: 0.85rem;
    color: var(--accent);
    opacity: 0.7;
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section-padding {
    padding: 100px 0;
}

.bg-control {
    background: var(--bg-secondary);
}

.section-header {
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #fff;
}

.section-sub {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-top: 12px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   3D VIEWER
   ============================================ */
.viewer3d-wrap {
    max-width: 800px;
    margin: 0 auto;
}

#viewer3d {
    width: 100%;
    height: 500px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: radial-gradient(ellipse at center, #111827 0%, var(--bg-secondary) 100%);
    overflow: hidden;
    cursor: grab;
}

#viewer3d:active {
    cursor: grabbing;
}

#viewer3d canvas {
    border-radius: var(--radius-lg);
}

.viewer3d-hint {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 16px;
}

.viewer3d-hint span {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.viewer3d-hint i {
    color: var(--accent);
    opacity: 0.6;
}

/* ============================================
   FEATURE CARDS
   ============================================ */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px 28px;
    height: 100%;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--purple));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: var(--border-hover);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.fc-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    margin-bottom: 20px;
}

.feature-card h4 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #fff;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.65;
    margin: 0;
}

/* ============================================
   CONTROL PANEL
   ============================================ */
.control-panel {
    max-width: 1100px;
    margin: 0 auto;
}

.panel-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    height: 100%;
}

.panel-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--accent);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Telemetry */
.telemetry-grid {
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.telem-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.telem-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-width: 85px;
    font-family: var(--font-display);
    font-weight: 500;
}

.telem-bar-wrap {
    flex: 1;
    height: 5px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    overflow: hidden;
}

.telem-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--purple), var(--accent));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.telem-value {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent);
    min-width: 60px;
    text-align: right;
}

/* D-Pad */
.dpad-container {
    display: flex;
    justify-content: center;
    padding: 10px 0;
}

.dpad {
    display: grid;
    grid-template-columns: 56px 56px 56px;
    grid-template-rows: 56px 56px 56px;
    gap: 5px;
}

.dpad-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid var(--border-color);
    color: var(--accent);
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dpad-btn:hover, .dpad-btn.active {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
}

.dpad-up { grid-column: 2; grid-row: 1; }
.dpad-left { grid-column: 1; grid-row: 2; }
.dpad-center { grid-column: 2; grid-row: 2; background: rgba(236, 72, 153, 0.1); border-color: rgba(236, 72, 153, 0.25); color: var(--pink); }
.dpad-center:hover { background: rgba(236, 72, 153, 0.25); border-color: var(--pink); box-shadow: 0 0 15px rgba(236,72,153,0.3); }
.dpad-right { grid-column: 3; grid-row: 2; }
.dpad-down { grid-column: 2; grid-row: 3; }

/* Sliders / Controls */
.ctrl-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.ctrl-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-family: var(--font-display);
    font-weight: 500;
    min-width: 65px;
}

.cyber-range {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    outline: none;
}

.cyber-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
    cursor: pointer;
    transition: box-shadow 0.2s;
}

.cyber-range::-webkit-slider-thumb:hover {
    box-shadow: 0 0 18px var(--accent-glow);
}

.range-val {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    min-width: 38px;
    text-align: right;
}

/* Headlights */
.light-ctrl {
    text-align: center;
}

.light-ctrl .ctrl-label {
    display: block;
    margin-bottom: 8px;
    min-width: auto;
    text-align: center;
}

.light-ctrl .cyber-range {
    width: 100%;
}

.light-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
    border: 2px solid var(--border-color);
    margin: 10px auto 0;
    transition: all 0.3s ease;
}

/* RGB */
.rgb-control {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: flex-start;
}

.rgb-preview {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: rgb(0, 200, 255);
    box-shadow: 0 0 30px rgba(0, 200, 255, 0.5);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.rgb-sliders {
    flex: 1;
    min-width: 180px;
}

.rgb-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.rgb-row label { min-width: 18px; }
.rgb-row input { flex: 1; }

.range-r::-webkit-slider-thumb { background: #ef4444; box-shadow: 0 0 10px rgba(239,68,68,0.5); }
.range-g::-webkit-slider-thumb { background: #22c55e; box-shadow: 0 0 10px rgba(34,197,94,0.5); }
.range-b::-webkit-slider-thumb { background: #3b82f6; box-shadow: 0 0 10px rgba(59,130,246,0.5); }

.led-effects .btn-group { gap: 0; }

.btn-effect {
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 14px;
    cursor: pointer;
    transition: all 0.25s;
}

.btn-effect:hover {
    border-color: var(--border-hover);
    color: var(--accent);
}

.btn-effect.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ============================================
   SPECS CARDS
   ============================================ */
.spec-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px 20px 24px;
    text-align: center;
    height: 100%;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.spec-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 0 0 4px 4px;
    opacity: 0;
    transition: all 0.35s ease;
}

.spec-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.spec-card:hover::before {
    opacity: 1;
    width: 50px;
}

.spec-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--accent);
    font-size: 1.15rem;
    transition: all 0.35s ease;
}

.spec-card:hover .spec-icon {
    background: rgba(59, 130, 246, 0.15);
    transform: scale(1.08);
}

.spec-label {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.spec-value {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 4px;
}

.spec-detail {
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.65;
}

@media (max-width: 575px) {
    .spec-card {
        padding: 22px 14px 18px;
    }
    .spec-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    .spec-value {
        font-size: 0.92rem;
    }
}

/* ============================================
   GALLERY
   ============================================ */
.gallery-item {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    aspect-ratio: 1;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover {
    border-color: var(--accent);
    box-shadow: 0 0 25px var(--accent-glow);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

/* ============================================
   PRE-ORDER FORM
   ============================================ */
.preorder-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.preorder-card .form-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.preorder-card .form-control,
.preorder-card textarea {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 10px;
    padding: 11px 16px;
    font-family: var(--font-body);
    transition: all 0.3s ease;
}

.preorder-card .form-control:focus,
.preorder-card textarea:focus {
    background: rgba(59, 130, 246, 0.04);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    color: var(--text-primary);
}

.preorder-card .form-control.is-invalid {
    border-color: var(--pink);
    box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.2);
}

#formMessage .alert {
    border-radius: 10px;
    font-size: 0.9rem;
}

/* ============================================
   MOBILE APP
   ============================================ */
.app-showcase {
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.app-showcase-img {
    width: 100%;
    display: block;
    transition: transform 0.6s ease;
}

.app-showcase:hover .app-showcase-img {
    transform: scale(1.03);
}

.app-content .section-tag {
    margin-bottom: 12px;
}

.app-content .section-title {
    margin-bottom: 16px;
}

.app-desc {
    font-size: 0.92rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.app-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.app-feature-icon {
    width: 42px;
    height: 42px;
    min-width: 42px;
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1rem;
    margin-top: 2px;
    transition: all 0.3s ease;
}

.app-feature-item:hover .app-feature-icon {
    background: rgba(59, 130, 246, 0.15);
    transform: scale(1.1);
}

.app-feature-item h6 {
    font-family: var(--font-display);
    font-size: 0.88rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}

.app-feature-item p {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

.app-badges {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.app-badge:hover {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.08);
}

.app-badge-note {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-style: italic;
    opacity: 0.6;
}

@media (max-width: 991px) {
    .app-content {
        text-align: center;
    }
    .app-content .section-title {
        text-align: center !important;
    }
    .app-feature-item {
        text-align: left;
    }
    .app-badges {
        justify-content: center;
    }
}

/* ============================================
   USE CASES
   ============================================ */
.usecase-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    height: 100%;
    transition: all 0.35s;
}

.usecase-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.08);
}

.usecase-icon {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(139, 92, 246, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.2rem;
    color: var(--accent);
    transition: all 0.35s;
}

.usecase-card:hover .usecase-icon {
    background: linear-gradient(135deg, var(--accent), var(--purple));
    color: #fff;
}

.usecase-card h5 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.usecase-card p {
    color: var(--text-secondary);
    font-size: 0.78rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* ============================================
   PRICING
   ============================================ */
.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--purple), var(--cyan));
}

.pricing-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 6px 20px;
    border-radius: 50px;
    margin-bottom: 24px;
}

.pricing-amount {
    margin-bottom: 8px;
}

.pricing-currency {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    vertical-align: super;
    margin-right: 4px;
}

.pricing-value {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.pricing-vat {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 28px;
}

.pricing-includes {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    text-align: left;
}

.pricing-includes li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.06);
    font-size: 0.88rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-includes li:last-child {
    border-bottom: none;
}

.pricing-includes li i {
    color: var(--cyan);
    font-size: 0.72rem;
}

.pricing-note {
    color: var(--text-muted);
    font-size: 0.72rem;
    opacity: 0.7;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 48px 0 24px;
    font-size: 0.78rem;
    line-height: 1.65;
}

.footer-brand {
    margin-bottom: 8px;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.72rem;
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: all 0.3s;
    text-decoration: none;
}

.footer-social a:hover {
    color: #fff;
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.12);
}

.footer-social a .fa-youtube:hover { color: #ff0000; }
.footer-social a .fa-instagram:hover { color: #e4405f; }

.footer-heading {
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 12px;
    opacity: 0.85;
}

.footer-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav li {
    margin-bottom: 5px;
}

.footer-nav a {
    color: var(--text-muted);
    font-size: 0.72rem;
    text-decoration: none;
    transition: color 0.25s;
    letter-spacing: 0.01em;
}

.footer-nav a:hover {
    color: var(--accent);
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li {
    color: var(--text-muted);
    font-size: 0.72rem;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact li i {
    color: var(--accent);
    font-size: 0.68rem;
    width: 14px;
    text-align: center;
    opacity: 0.6;
}

.footer-contact a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.25s;
}

.footer-contact a:hover {
    color: var(--accent);
}

/* Garanti Strip */
.footer-warranty-strip {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
    margin-bottom: 12px;
}

.footer-strip-title {
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
    opacity: 0.7;
}

.footer-warranty-strip p {
    color: var(--text-muted);
    font-size: 0.65rem;
    line-height: 1.7;
    margin-bottom: 0;
    opacity: 0.7;
}

/* Atölye Strip */
.footer-workshop {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 14px;
}

.footer-workshop p {
    color: var(--text-muted);
    font-size: 0.62rem;
    line-height: 1.7;
    margin-bottom: 0;
    opacity: 0.55;
    font-style: italic;
}

/* Footer Bottom */
.footer-bottom {
    padding-top: 10px;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.68rem;
    opacity: 0.5;
}

.footer-secure {
    display: flex;
    gap: 10px;
}

.secure-badge {
    display: inline-flex;
    align-items: center;
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding: 3px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    opacity: 0.5;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.72rem;
    transition: color 0.25s;
}

.footer-links a:hover {
    color: var(--accent);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991px) {
    .hero-title { font-size: clamp(2.2rem, 5vw, 3.6rem); }
    .slider-controls { right: 20px; bottom: 80px; }
    #viewer3d { height: 380px; }
}

@media (max-width: 767px) {
    .section-padding { padding: 70px 0; }
    .section-title { font-size: 1.9rem; }
    .hero-desc { font-size: 1rem; }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .preorder-card { padding: 24px; }
    .slider-controls { bottom: 70px; right: 12px; }
    .slider-btn { width: 36px; height: 36px; }
    .dpad { grid-template-columns: 48px 48px 48px; grid-template-rows: 48px 48px 48px; }
    #viewer3d { height: 300px; }
    .viewer3d-hint { flex-direction: column; align-items: center; gap: 8px; }
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    cursor: zoom-out;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-overlay img {
    max-width: 90vw;
    max-height: 88vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.15);
    transform: scale(0.92);
    transition: transform 0.35s ease;
    cursor: default;
}

.lightbox-overlay.active img {
    transform: scale(1);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    color: #fff;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.25s;
    z-index: 2;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.lightbox-close {
    top: 20px;
    right: 20px;
}

.lightbox-prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

@media (max-width: 767px) {
    .lightbox-prev,
    .lightbox-next {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }
    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
}

/* Pre-order Notice */
.preorder-notice {
    display: flex;
    gap: 16px;
    background: rgba(0, 229, 255, 0.04);
    border: 1px solid rgba(0, 229, 255, 0.12);
    border-radius: 14px;
    padding: 22px 26px;
    align-items: flex-start;
}

.preorder-notice-icon {
    flex-shrink: 0;
    color: var(--cyan);
    font-size: 1.1rem;
    margin-top: 2px;
    opacity: 0.7;
}

.preorder-notice-text p {
    font-size: 0.82rem;
    line-height: 1.75;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.preorder-notice-text p:last-child {
    margin-bottom: 0;
}

/* Utility */
.text-cyan { color: var(--cyan) !important; }
.text-accent { color: var(--accent) !important; }

/* ==================== FAQ Section ==================== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.faq-item.active {
    border-color: var(--cyan);
    background: rgba(0, 229, 255, 0.03);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    cursor: pointer;
    gap: 16px;
    user-select: none;
}

.faq-question span {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: #fff;
}

.faq-arrow {
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--cyan);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-size: 0.88rem;
    line-height: 1.75;
    color: var(--text-muted);
    margin: 0;
    padding-top: 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-faq-more {
    display: inline-flex;
    align-items: center;
    padding: 10px 28px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-faq-more:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0, 229, 255, 0.05);
}