/* Architect-inspired home page — Binod Suman */

body.home-page {
    --arch-bg: var(--page-bg);
    --arch-surface: var(--surface);
    --arch-surface-2: var(--surface-2);
    --arch-border: var(--border);
    --arch-text: var(--page-fg);
    --arch-muted: var(--muted);
    --arch-accent: var(--accent);
    --arch-accent-2: var(--primary);
    --arch-gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    background: var(--arch-bg);
    color: var(--arch-text);
}

body.home-page section {
    color: var(--arch-text);
}

/* Hero */
.hero-arch {
    position: relative;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    padding: 3rem 2rem 4rem;
    max-width: 1280px;
    margin: 0 auto;
    overflow: hidden;
}

.hero-arch-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 75%);
    animation: gridDrift 24s linear infinite;
}

@keyframes gridDrift {
    0% { background-position: 0 0, 0 0; }
    100% { background-position: 48px 48px, 48px 48px; }
}

.hero-arch-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    top: -20%;
    right: -10%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 65%);
    pointer-events: none;
}

.hero-arch-inner {
    display: flex;
    align-items: center;
    gap: 3rem;
    width: 100%;
    z-index: 1;
}

.hero-arch-content {
    flex: 1;
    max-width: 620px;
    animation: heroFadeUp 0.9s ease-out both;
}

.hero-arch-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: heroFadeUp 0.9s ease-out 0.15s both;
}

@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--arch-accent);
    margin-bottom: 1.25rem;
    padding: 0.4rem 0.9rem;
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: 2px;
    background: rgba(245, 158, 11, 0.06);
}

.hero-eyebrow::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--arch-accent);
    border-radius: 1px;
    transform: rotate(45deg);
}

.hero-arch-title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
    color: var(--arch-text);
}

.hero-arch-title span {
    background: var(--arch-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-role {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 500;
    color: var(--arch-accent-2);
    margin-bottom: 1.25rem;
    min-height: 2rem;
}

.hero-arch-desc {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--arch-muted);
    margin-bottom: 2rem;
    max-width: 520px;
}

.hero-arch-desc a {
    color: var(--arch-accent-2);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid rgba(56, 189, 248, 0.4);
}

.hero-arch-desc a:hover {
    color: #7dd3fc;
}

.hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.btn-arch-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.6rem;
    background: var(--arch-gradient);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 2px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 24px rgba(99, 102, 241, 0.35);
}

.btn-arch-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.45);
}

.btn-arch-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.85rem 1.25rem;
    background: transparent;
    color: var(--arch-text);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    transition: all 0.2s ease;
}

.btn-arch-ghost:hover {
    border-color: rgba(56, 189, 248, 0.5);
    background: rgba(56, 189, 248, 0.08);
    color: #7dd3fc;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--arch-border);
}

.hero-stat strong {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--arch-text);
    line-height: 1.2;
}

.hero-stat span {
    font-size: 0.8rem;
    color: var(--arch-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-frame {
    position: relative;
    max-width: 420px;
}

.hero-frame::before {
    content: '';
    position: absolute;
    inset: -12px -12px 12px 12px;
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 2px;
    z-index: 0;
}

/* Blueprint corner marks */
.hero-frame .bp-corner {
    position: absolute;
    width: 16px;
    height: 16px;
    z-index: 3;
    pointer-events: none;
}

.hero-frame .bp-corner::before,
.hero-frame .bp-corner::after {
    content: '';
    position: absolute;
    background: rgba(56, 189, 248, 0.6);
}

.hero-frame .bp-tl { top: -20px; left: -20px; }
.hero-frame .bp-tl::before { top: 0; left: 0; width: 16px; height: 1px; }
.hero-frame .bp-tl::after { top: 0; left: 0; width: 1px; height: 16px; }

.hero-frame .bp-br { bottom: 8px; right: -20px; }
.hero-frame .bp-br::before { bottom: 0; right: 0; width: 16px; height: 1px; }
.hero-frame .bp-br::after { bottom: 0; right: 0; width: 1px; height: 16px; }

.hero-frame::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 10%;
    width: 80%;
    height: 40px;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.4), transparent 70%);
    filter: blur(20px);
    z-index: 0;
}

.hero-frame img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 2px;
    position: relative;
    z-index: 1;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--arch-border);
}

.hero-frame-label {
    position: absolute;
    bottom: 16px;
    left: 16px;
    z-index: 2;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: white;
    background: rgba(12, 15, 20, 0.85);
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--arch-border);
    backdrop-filter: blur(8px);
}

.scroll-indicator-arch {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    color: var(--arch-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: archBounce 2.5s ease infinite;
}

@keyframes archBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* Quick access strip */
.quick-access {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem 3rem;
}

.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

@media (max-width: 1100px) {
    .quick-access-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.quick-card {
    display: block;
    padding: 1.35rem 1.25rem;
    background: var(--arch-surface);
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    text-decoration: none;
    color: var(--arch-text);
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
    animation: heroFadeUp 0.7s ease-out both;
}

.quick-card:nth-child(1) { animation-delay: 0.1s; }
.quick-card:nth-child(2) { animation-delay: 0.18s; }
.quick-card:nth-child(3) { animation-delay: 0.26s; }
.quick-card:nth-child(4) { animation-delay: 0.34s; }
.quick-card:nth-child(5) { animation-delay: 0.42s; }

.quick-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--arch-gradient);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.quick-card:hover {
    border-color: rgba(56, 189, 248, 0.35);
    background: var(--arch-surface-2);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.quick-card:hover::before {
    opacity: 1;
}

.quick-card i {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    display: block;
    color: var(--arch-accent-2);
}

.quick-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.quick-card p {
    font-size: 0.82rem;
    color: var(--arch-muted);
    line-height: 1.4;
}

/* Section styling on dark home */
body.home-page .section-header {
    text-align: left;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--arch-border);
    position: relative;
}

body.home-page .section-num {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--arch-accent);
    margin-bottom: 0.5rem;
}

body.home-page .section-num::after {
    content: '';
    display: block;
    width: 32px;
    height: 1px;
    background: var(--arch-accent);
    margin-top: 0.35rem;
    opacity: 0.6;
}

body.home-page .section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--arch-text);
    display: block;
}

body.home-page .section-title::after {
    display: none;
}

body.home-page .section-subtitle {
    color: var(--arch-muted);
    margin: 0.5rem 0 0;
    text-align: left;
    max-width: 560px;
}

body.home-page #latest-videos,
body.home-page #playlists,
body.home-page #dsa {
    background: var(--arch-bg);
}

body.home-page #popular-videos,
body.home-page #about {
    background: var(--arch-surface);
    border-top: 1px solid var(--arch-border);
    border-bottom: 1px solid var(--arch-border);
}

body.home-page #testimonials {
    background: var(--arch-bg);
}

/* Video cards — dark glass */
body.home-page .video-card {
    background: var(--arch-surface);
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    box-shadow: none;
}

body.home-page .video-card:hover {
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

body.home-page .play-icon {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.9), rgba(99, 102, 241, 0.9));
    opacity: 0.85;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.home-page .video-card:hover .play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.08);
}

body.home-page .video-title {
    color: var(--arch-text);
}

body.home-page .video-meta {
    color: var(--arch-muted);
}

body.home-page .video-info {
    border-top: 1px solid var(--arch-border);
}

/* Playlist cards — horizontal layout */
body.home-page .playlist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

body.home-page .playlist-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: var(--arch-surface);
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    text-decoration: none;
    color: var(--arch-text);
    transition: all 0.25s ease;
    text-align: left;
}

body.home-page .playlist-card:hover {
    border-color: rgba(56, 189, 248, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

body.home-page .playlist-thumb {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

body.home-page .playlist-body {
    flex: 1;
    min-width: 0;
}

body.home-page .playlist-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--arch-text);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

body.home-page .playlist-cta {
    font-size: 0.78rem;
    color: var(--arch-accent-2);
    letter-spacing: 0.02em;
}

body.home-page .playlist-cta i {
    font-size: 0.7rem;
    margin-left: 0.2rem;
}

/* Connect section — 3×2 professional cards */
body.home-page .connect-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

body.home-page .connect-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.15rem 1.25rem;
    background: var(--arch-surface);
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    text-decoration: none;
    color: var(--arch-text);
    transition: all 0.25s ease;
    position: relative;
}

body.home-page .connect-card:hover {
    border-color: rgba(56, 189, 248, 0.45);
    background: var(--arch-surface-2);
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}

body.home-page .connect-avatar {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 2px;
    overflow: hidden;
    border: 1px solid var(--arch-border);
}

body.home-page .connect-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

body.home-page .connect-avatar-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    border: none;
}

body.home-page .connect-info {
    flex: 1;
    min-width: 0;
}

body.home-page .connect-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
    color: var(--arch-text);
}

body.home-page .connect-handle {
    font-size: 0.88rem;
    color: var(--arch-accent-2);
    margin-bottom: 0.2rem;
}

body.home-page .connect-label {
    font-size: 0.75rem;
    color: var(--arch-muted);
    display: block;
    line-height: 1.35;
}

body.home-page .connect-arrow {
    flex-shrink: 0;
    color: var(--arch-muted);
    font-size: 0.85rem;
    transition: transform 0.2s ease, color 0.2s ease;
}

body.home-page .connect-card:hover .connect-arrow {
    color: var(--arch-accent-2);
    transform: translateX(4px);
}

@media (max-width: 992px) {
    body.home-page .connect-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    body.home-page .connect-grid {
        grid-template-columns: 1fr;
    }
}

/* Testimonials on dark */
body.home-page .testimonial-slider {
    background: var(--arch-surface);
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    box-shadow: none;
}

body.home-page .testimonial-text {
    color: var(--arch-muted) !important;
}

body.home-page .testimonial-text::before,
body.home-page .testimonial-text::after {
    color: var(--arch-accent-2) !important;
    opacity: 0.25 !important;
}

body.home-page .testimonial-source {
    color: var(--arch-muted) !important;
}

body.home-page .testimonial-author-image {
    border-color: rgba(56, 189, 248, 0.5) !important;
}

body.home-page .dot {
    background: rgba(148, 163, 184, 0.35);
}

body.home-page .dot.active {
    background: var(--arch-accent-2);
}

body.home-page .auto-play-toggle {
    color: var(--arch-muted);
}

body.home-page .toggle-switch {
    background: rgba(148, 163, 184, 0.3);
}

body.home-page .auto-play-toggle.active .toggle-switch {
    background: var(--arch-gradient);
}

body.home-page .testimonial-author {
    color: var(--arch-accent-2) !important;
}

body.home-page .testimonial-stats {
    background: var(--arch-surface-2);
    border: 1px solid var(--arch-border);
    border-radius: 2px;
    box-shadow: none;
}

body.home-page .stat-number {
    color: var(--arch-accent-2);
}

body.home-page .stat-label {
    color: var(--arch-muted);
}

body.home-page .testimonial-controls {
    background: var(--arch-surface-2);
}

body.home-page .control-btn {
    background: var(--arch-gradient);
}

body.home-page footer {
    background: #080a0e;
    border-top: 1px solid var(--arch-border);
}

body.home-page .footer-link {
    color: var(--arch-muted);
}

body.home-page .footer-link:hover {
    color: var(--arch-text);
}

body.home-page .back-to-top {
    background: var(--arch-gradient);
    border-radius: 2px;
}

/* Scroll reveal for sections */
body.home-page section.reveal-section {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

body.home-page section.reveal-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

body.home-page .typewriter::after {
    color: var(--arch-accent-2);
}

/* Nav on dark hero — subtle glass */
body.home-page .site-header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--arch-border);
    box-shadow: none;
}

body.home-page .site-header .logo {
    color: var(--primary);
}

body.home-page .site-header .nav-link,
body.home-page .site-header .nav-dropdown-toggle {
    color: var(--header-fg);
}

body.home-page .site-header .nav-link:hover,
body.home-page .site-header .nav-dropdown-toggle:hover {
    color: var(--primary);
}

body.home-page .site-header .nav-dropdown-menu {
    background: var(--arch-surface);
    border-color: var(--arch-border);
}

body.home-page .site-header .nav-dropdown-menu .nav-link {
    color: var(--arch-muted);
}

body.home-page .site-header .mobile-menu-btn {
    color: var(--header-fg);
}

@media (max-width: 768px) {
    body.home-page .site-header .nav-menu {
        background: var(--arch-surface);
        border-top: 1px solid var(--arch-border);
    }
}

@media (max-width: 992px) {
    .hero-arch-inner {
        flex-direction: column;
        text-align: center;
    }

    .hero-arch-content {
        max-width: 100%;
    }

    .hero-arch-desc {
        max-width: 100%;
    }

    .hero-cta-row {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .quick-access-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    body.home-page .section-header {
        text-align: center;
    }

    body.home-page .section-subtitle {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 576px) {
    .quick-access-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 1.25rem;
    }

    .hero-stat strong {
        font-size: 1.4rem;
    }
}

body.home-page .dsa-home-banner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1.25rem;
    margin: 0 0 1.5rem;
    padding: 1rem 1.15rem;
    border: 1px solid rgba(74, 222, 128, 0.25);
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(22, 163, 74, 0.16), rgba(56, 189, 248, 0.1));
    text-decoration: none;
    color: #e2e8f0;
}

body.home-page .dsa-home-banner strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 0.2rem;
}

body.home-page .dsa-home-banner span {
    font-size: 0.9rem;
    opacity: 0.85;
}

body.home-page .dsa-home-banner em {
    font-style: normal;
    font-weight: 700;
    color: #4ade80;
}