/* ============================================================
   Landing Page — YTDown  (Light + Dark theme)
   ============================================================ */

/* ---------- Variables ---------- */
[data-theme="dark"] {
    --ln-bg: #08080d;
    --ln-bg2: #0f0f17;
    --ln-surface: rgba(255,255,255,0.04);
    --ln-surface-hover: rgba(255,255,255,0.07);
    --ln-border: rgba(255,255,255,0.07);
    --ln-border-hover: rgba(99,102,241,0.25);
    --ln-text: #e8ecf4;
    --ln-text-muted: rgba(255,255,255,0.5);
    --ln-text-faint: rgba(255,255,255,0.3);
    --ln-accent: #818cf8;
    --ln-accent-bg: rgba(99,102,241,0.12);
    --ln-accent-border: rgba(99,102,241,0.2);
    --ln-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --ln-glow-1: rgba(99,102,241,0.35);
    --ln-glow-2: rgba(139,92,246,0.25);
    --ln-glow-3: rgba(167,139,250,0.2);
    --ln-card-shadow: 0 8px 32px rgba(0,0,0,0.3);
    --ln-nav-bg: rgba(8,8,13,0.8);
    --ln-preview-bg: #111119;
    --ln-preview-sidebar: #0d0d14;
}

[data-theme="light"] {
    --ln-bg: #fafbff;
    --ln-bg2: #f1f3fa;
    --ln-surface: rgba(99,102,241,0.04);
    --ln-surface-hover: rgba(99,102,241,0.08);
    --ln-border: rgba(0,0,0,0.07);
    --ln-border-hover: rgba(99,102,241,0.25);
    --ln-text: #1a1a2e;
    --ln-text-muted: rgba(0,0,0,0.5);
    --ln-text-faint: rgba(0,0,0,0.3);
    --ln-accent: #6366f1;
    --ln-accent-bg: rgba(99,102,241,0.08);
    --ln-accent-border: rgba(99,102,241,0.15);
    --ln-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --ln-glow-1: rgba(99,102,241,0.12);
    --ln-glow-2: rgba(139,92,246,0.08);
    --ln-glow-3: rgba(167,139,250,0.06);
    --ln-card-shadow: 0 8px 32px rgba(99,102,241,0.08);
    --ln-nav-bg: rgba(250,251,255,0.85);
    --ln-preview-bg: #fff;
    --ln-preview-sidebar: #f5f6fb;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--ln-bg);
    color: var(--ln-text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background 0.4s ease, color 0.4s ease;
}

.ln-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ---------- Navbar ---------- */
.ln-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0.75rem 0;
    background: var(--ln-nav-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--ln-border);
    transition: background 0.4s;
}

.ln-nav .ln-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ln-brand {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    color: var(--ln-text);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.3px;
}

.ln-brand img { width: 32px; height: 32px; border-radius: 9px; }

.ln-nav-center {
    display: flex;
    gap: 2rem;
}

.ln-nav-center a {
    color: var(--ln-text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
}

.ln-nav-center a:hover { color: var(--ln-text); }

.ln-nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ln-theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--ln-border);
    background: var(--ln-surface);
    color: var(--ln-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.25s;
}

.ln-theme-toggle:hover {
    border-color: var(--ln-border-hover);
    color: var(--ln-accent);
    background: var(--ln-accent-bg);
}

.ln-nav-link {
    color: var(--ln-text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.45rem 0.9rem;
    border-radius: 9px;
    transition: all 0.2s;
}

.ln-nav-link:hover { color: var(--ln-text); background: var(--ln-surface); }

.ln-nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 1.1rem;
    background: var(--ln-gradient);
    color: #fff !important;
    text-decoration: none;
    border-radius: 10px;
    font-size: 0.83rem;
    font-weight: 700;
    transition: all 0.25s;
    box-shadow: 0 4px 15px rgba(99,102,241,0.25);
}

.ln-nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.35);
}

.ln-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--ln-text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Menu */
.ln-mobile-menu {
    display: none;
    position: fixed;
    top: 58px;
    left: 0;
    right: 0;
    z-index: 99;
    background: var(--ln-nav-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 0.75rem 1.5rem 1rem;
    flex-direction: column;
    gap: 0.5rem;
    border-bottom: 1px solid var(--ln-border);
}

.ln-mobile-menu.show { display: flex; }

.ln-mobile-menu a {
    color: var(--ln-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 0;
}

/* ---------- Hero ---------- */
.ln-hero {
    position: relative;
    padding: 7rem 0 3rem;
    text-align: center;
    overflow: hidden;
}

.ln-hero-glow {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.ln-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.ln-glow.g1 {
    width: 450px;
    height: 450px;
    background: var(--ln-glow-1);
    top: -12%;
    left: 15%;
    animation: gfloat1 20s ease-in-out infinite;
}

.ln-glow.g2 {
    width: 350px;
    height: 350px;
    background: var(--ln-glow-2);
    top: 10%;
    right: 10%;
    animation: gfloat2 15s ease-in-out infinite;
}

.ln-glow.g3 {
    width: 250px;
    height: 250px;
    background: var(--ln-glow-3);
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    animation: gfloat3 18s ease-in-out infinite;
}

@keyframes gfloat1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(40px,30px); } }
@keyframes gfloat2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-30px,20px); } }
@keyframes gfloat3 { 0%,100% { transform: translateX(-50%) scale(1); } 50% { transform: translateX(-50%) scale(1.2); } }

/* Grid Pattern */
.ln-grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--ln-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--ln-border) 1px, transparent 1px);
    background-size: 60px 60px;
    -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 20%, transparent 70%);
    mask-image: radial-gradient(ellipse at 50% 30%, black 20%, transparent 70%);
    pointer-events: none;
    opacity: 0.5;
}

.ln-hero-inner {
    position: relative;
    z-index: 1;
}

/* Badge */
.ln-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem 0.4rem 0.6rem;
    background: var(--ln-accent-bg);
    border: 1px solid var(--ln-accent-border);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ln-accent);
    margin-bottom: 1.25rem;
}

.ln-badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Title */
.ln-hero-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 900;
    line-height: 1.12;
    letter-spacing: -1px;
    margin-bottom: 0.9rem;
    background: linear-gradient(135deg, var(--ln-text) 0%, var(--ln-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ln-hero-sub {
    font-size: clamp(0.92rem, 1.5vw, 1.05rem);
    color: var(--ln-text-muted);
    max-width: 540px;
    margin: 0 auto 1.75rem;
    line-height: 1.6;
}

/* Actions */
.ln-hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.ln-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 1.5rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ln-btn-primary {
    background: var(--ln-gradient);
    color: #fff;
    box-shadow: 0 6px 20px rgba(99,102,241,0.3);
}

.ln-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99,102,241,0.4);
    color: #fff;
}

.ln-btn-secondary {
    background: var(--ln-surface);
    color: var(--ln-text);
    border: 1px solid var(--ln-border);
}

.ln-btn-secondary:hover {
    background: var(--ln-surface-hover);
    border-color: var(--ln-border-hover);
    color: var(--ln-text);
    transform: translateY(-2px);
}

.ln-btn-white {
    background: #fff;
    color: #1e1b4b;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.ln-btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    color: #1e1b4b;
}

.ln-btn-glass {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.15);
}

.ln-btn-glass:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
    transform: translateY(-2px);
}

/* Floating Chips */
.ln-hero-chips {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.ln-chip {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.9rem;
    background: var(--ln-surface);
    border: 1px solid var(--ln-border);
    border-radius: 12px;
    transition: all 0.25s;
}

.ln-chip:hover {
    border-color: var(--ln-border-hover);
    background: var(--ln-surface-hover);
    transform: translateY(-2px);
    box-shadow: var(--ln-card-shadow);
}

.ln-chip-icon {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    background: var(--ln-gradient);
    color: #fff;
    flex-shrink: 0;
}

.ln-chip-icon.audio { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.ln-chip-icon.playlist { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }
.ln-chip-icon.editor { background: linear-gradient(135deg, #f59e0b, #f97316); }

.ln-chip-text { text-align: left; }

.ln-chip-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--ln-text);
    line-height: 1.1;
}

.ln-chip-desc {
    display: block;
    font-size: 0.68rem;
    color: var(--ln-text-faint);
    line-height: 1.1;
}

/* Dashboard Preview */
.ln-hero-preview {
    max-width: 780px;
    margin: 0 auto;
    perspective: 1200px;
}

.ln-preview-window {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--ln-border);
    background: var(--ln-preview-bg);
    box-shadow:
        var(--ln-card-shadow),
        0 0 80px rgba(99,102,241,0.08);
    transform: rotateX(2deg);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.ln-preview-window:hover {
    transform: rotateX(0);
    box-shadow:
        0 20px 60px rgba(0,0,0,0.2),
        0 0 100px rgba(99,102,241,0.12);
}

.ln-preview-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1rem;
    background: var(--ln-preview-sidebar);
    border-bottom: 1px solid var(--ln-border);
}

.ln-preview-dots {
    display: flex;
    gap: 0.35rem;
}

.ln-preview-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.ln-preview-dots span:nth-child(1) { background: #ff5f57; }
.ln-preview-dots span:nth-child(2) { background: #febc2e; }
.ln-preview-dots span:nth-child(3) { background: #27c93f; }

.ln-preview-url {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.7rem;
    color: var(--ln-text-faint);
    background: var(--ln-surface);
    padding: 0.25rem 0.8rem;
    border-radius: 6px;
}

.ln-preview-body {
    display: flex;
    min-height: 200px;
}

.ln-preview-sidebar {
    width: 48px;
    background: var(--ln-preview-sidebar);
    border-right: 1px solid var(--ln-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem 0;
    gap: 0.4rem;
}

.ln-ps-item {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--ln-text-faint);
    transition: all 0.2s;
}

.ln-ps-item.active {
    background: var(--ln-accent-bg);
    color: var(--ln-accent);
}

.ln-preview-main {
    flex: 1;
    padding: 1rem 1.25rem;
}

.ln-pm-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    border: 1px solid var(--ln-border);
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--ln-text-faint);
    background: var(--ln-surface);
}

.ln-pm-cards { display: flex; flex-direction: column; gap: 0.6rem; }

.ln-pm-card {
    display: flex;
    gap: 0.75rem;
    padding: 0.6rem;
    border-radius: 10px;
    background: var(--ln-surface);
    border: 1px solid var(--ln-border);
}

.ln-pm-thumb {
    width: 64px;
    height: 40px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--ln-accent-bg), var(--ln-surface-hover));
    flex-shrink: 0;
}

.ln-pm-info { flex: 1; min-width: 0; }

.ln-pm-title {
    height: 8px;
    width: 65%;
    background: var(--ln-border);
    border-radius: 4px;
    margin-bottom: 0.35rem;
}

.ln-pm-meta {
    height: 6px;
    width: 40%;
    background: var(--ln-border);
    border-radius: 4px;
    margin-bottom: 0.5rem;
    opacity: 0.6;
}

.ln-pm-progress {
    height: 5px;
    border-radius: 3px;
    background: var(--ln-border);
    overflow: hidden;
}

.ln-pm-bar {
    height: 100%;
    border-radius: 3px;
    background: var(--ln-gradient);
    animation: barGrow 2s ease-in-out infinite;
}

.ln-pm-progress.done .ln-pm-bar {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    animation: none;
}

@keyframes barGrow {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* ---------- Features ---------- */
.ln-features {
    padding: 5rem 0;
}

.ln-section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.ln-section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.85rem;
    background: var(--ln-accent-bg);
    border: 1px solid var(--ln-accent-border);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--ln-accent);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 0.9rem;
}

.ln-section-title {
    font-size: clamp(1.7rem, 3vw, 2.3rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
}

.ln-section-sub {
    font-size: 0.95rem;
    color: var(--ln-text-muted);
    max-width: 480px;
    margin: 0 auto;
}

.ln-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.ln-feature-card {
    position: relative;
    padding: 1.75rem 1.5rem;
    background: var(--ln-surface);
    border: 1px solid var(--ln-border);
    border-radius: 16px;
    text-align: left;
    transition: all 0.35s ease;
    overflow: hidden;
}

.ln-feature-card:hover {
    border-color: var(--ln-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--ln-card-shadow);
}

.ln-fc-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #fff;
}

.ln-fc-icon.color-1 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.ln-fc-icon.color-2 { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.ln-fc-icon.color-3 { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }
.ln-fc-icon.color-4 { background: linear-gradient(135deg, #f59e0b, #f97316); }

.ln-fc-title {
    font-size: 0.98rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.ln-fc-desc {
    font-size: 0.84rem;
    color: var(--ln-text-muted);
    line-height: 1.5;
}

.ln-fc-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
    transition: left 0.6s ease;
}

.ln-feature-card:hover .ln-fc-shine {
    left: 100%;
}

/* ---------- How It Works ---------- */
.ln-how {
    padding: 5rem 0;
    background: var(--ln-bg2);
    border-top: 1px solid var(--ln-border);
    border-bottom: 1px solid var(--ln-border);
    transition: background 0.4s;
}

.ln-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    max-width: 900px;
    margin: 0 auto;
}

.ln-step {
    flex: 1;
    text-align: center;
    padding: 0 0.75rem;
}

.ln-step-num {
    width: 44px;
    height: 44px;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--ln-gradient);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 1rem;
    box-shadow: 0 6px 20px rgba(99,102,241,0.25);
}

.ln-step-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ln-text-faint);
    font-size: 1.2rem;
    padding-top: 0.75rem;
    flex-shrink: 0;
}

.ln-step-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.ln-step-desc {
    font-size: 0.82rem;
    color: var(--ln-text-muted);
    line-height: 1.45;
    margin-bottom: 0.75rem;
}

/* Step visuals */
.ln-step-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ln-sv-url {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.85rem;
    background: var(--ln-surface);
    border: 1px solid var(--ln-border);
    border-radius: 8px;
    font-size: 0.72rem;
    color: var(--ln-text-muted);
}

.ln-sv-url i { color: #ff0000; font-size: 0.9rem; }

.ln-sv-quality {
    display: flex;
    gap: 0.3rem;
}

.ln-sq {
    padding: 0.3rem 0.55rem;
    border-radius: 6px;
    font-size: 0.68rem;
    font-weight: 700;
    background: var(--ln-surface);
    border: 1px solid var(--ln-border);
    color: var(--ln-text-muted);
}

.ln-sq.active {
    background: var(--ln-gradient);
    color: #fff;
    border-color: transparent;
}

.ln-sv-actions {
    display: flex;
    gap: 0.35rem;
}

.ln-sa {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ln-accent-bg);
    color: var(--ln-accent);
    font-size: 0.9rem;
}

/* ---------- CTA ---------- */
.ln-cta {
    padding: 5rem 0;
}

.ln-cta-card {
    position: relative;
    padding: 3.5rem 2rem;
    background: linear-gradient(135deg, #1e1b4b, #312e81);
    border-radius: 20px;
    text-align: center;
    overflow: hidden;
    border: 1px solid rgba(99,102,241,0.2);
}

.ln-cta-glow {
    position: absolute;
    top: -30%;
    right: -10%;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: rgba(99,102,241,0.2);
    filter: blur(80px);
    pointer-events: none;
}

.ln-cta-title {
    position: relative;
    z-index: 1;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.5rem;
}

.ln-cta-sub {
    position: relative;
    z-index: 1;
    color: rgba(255,255,255,0.6);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* ---------- Footer ---------- */
.ln-footer {
    padding: 1.75rem 0;
    border-top: 1px solid var(--ln-border);
}

.ln-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ln-footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--ln-text);
}

.ln-footer-brand img { width: 24px; height: 24px; border-radius: 7px; }

.ln-footer-copy {
    font-size: 0.75rem;
    color: var(--ln-text-faint);
    margin: 0;
}

/* ---------- Animations ---------- */
.animate-in {
    opacity: 0;
    transform: translateY(18px);
    animation: fadeUp 0.55s ease forwards;
}

.animate-in.d2 { animation-delay: 0.1s; }
.animate-in.d3 { animation-delay: 0.2s; }
.animate-in.d4 { animation-delay: 0.3s; }
.animate-in.d5 { animation-delay: 0.4s; }
.animate-in.d6 { animation-delay: 0.55s; }

.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease var(--delay, 0s), transform 0.5s ease var(--delay, 0s);
}

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

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
    .ln-features-grid { grid-template-columns: repeat(2, 1fr); }

    .ln-steps { flex-wrap: wrap; gap: 1rem; }
    .ln-step { flex: 0 0 calc(33.33% - 1rem); min-width: 200px; }
    .ln-step-arrow { display: none; }
}

@media (max-width: 767.98px) {
    .ln-nav-center, .ln-nav-right .ln-nav-link { display: none; }
    .ln-menu-toggle { display: block; }

    .ln-hero { padding: 6rem 0 2.5rem; }

    .ln-hero-chips { gap: 0.4rem; }
    .ln-chip { padding: 0.4rem 0.6rem; }
    .ln-chip-icon { width: 28px; height: 28px; font-size: 0.8rem; }
    .ln-chip-label { font-size: 0.72rem; }
    .ln-chip-desc { display: none; }

    .ln-features-grid { grid-template-columns: 1fr; }

    .ln-steps { flex-direction: column; align-items: center; }
    .ln-step { flex: none; width: 100%; max-width: 320px; }

    .ln-preview-sidebar { width: 36px; }
    .ln-pm-search { font-size: 0.7rem; padding: 0.45rem 0.7rem; }
    .ln-pm-thumb { width: 48px; height: 30px; }

    .ln-hero-actions { flex-direction: column; align-items: center; }
    .ln-btn { width: 100%; max-width: 260px; justify-content: center; }

    .ln-cta-card { padding: 2.5rem 1.5rem; }

    .ln-footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
}