/* ============================================
   VIDEOS (16:9, play in page) + FACEBOOK FEED
   ============================================ */

/* ---- Video grid ---- */
.video-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 768px) {
    .video-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .video-grid { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
}

.video-card {
    border-radius: 1rem;
    overflow: hidden;
    background: #000;
    border: 1px solid #1e293b;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.video-card:hover {
    border-color: rgba(16, 185, 129, 0.6);
    box-shadow: 0 0 24px rgba(16, 185, 129, 0.15);
}

/* Strict 16:9 frame */
.video-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    overflow: hidden;
}
.video-frame iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Lightweight thumbnail that turns into the real player on tap */
.video-lite {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: #000;
    cursor: pointer;
    display: block;
}
.video-lite img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: opacity 0.3s ease, transform 0.5s ease;
}
.video-lite:hover img,
.video-lite:focus-visible img {
    opacity: 1;
    transform: scale(1.04);
}
.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 68px;
    height: 48px;
    transform: translate(-50%, -50%);
    border-radius: 12px;
    background: rgba(220, 38, 38, 0.92);
    color: #fff;
    font-size: 22px;
    line-height: 48px;
    text-align: center;
    padding-left: 4px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
    transition: background 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}
.video-lite:hover .video-play,
.video-lite:focus-visible .video-play {
    background: #dc2626;
    transform: translate(-50%, -50%) scale(1.08);
}
.video-lite:focus-visible {
    outline: 3px solid #10b981;
    outline-offset: -3px;
}

/* ---- Facebook feed (tall portrait) ---- */
.fb-feed-wrap {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    border-radius: 1rem;
    overflow: hidden;
    background: #fff;
    border: 1px solid #1e293b;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}
.fb-feed-wrap iframe {
    display: block;
    width: 100%;
    height: 800px;
    border: 0;
    overflow: hidden;
}
@media (max-width: 640px) {
    .fb-feed-wrap iframe { height: 680px; }
}

/* ============================================
   ENGINEERING CAPABILITIES (futuristic HUD)
   ============================================ */

@property --tc-angle {
    syntax: '<angle>';
    inherits: false;
    initial-value: 0deg;
}

.tc-capabilities {
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(16, 185, 129, 0.10), transparent 70%),
        #020617;
}

/* Background layers */
.tc-cap-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}
.tc-cap-floor {
    position: absolute;
    left: -25%;
    right: -25%;
    bottom: 0;
    height: 60%;
    overflow: hidden;
    transform: perspective(500px) rotateX(62deg);
    transform-origin: 50% 100%;
    -webkit-mask-image: linear-gradient(to top, #000 10%, transparent 90%);
    mask-image: linear-gradient(to top, #000 10%, transparent 90%);
}
.tc-cap-floor-lines {
    position: absolute;
    inset: -48px 0 0 0;
    background-image:
        linear-gradient(rgba(52, 211, 153, 0.22) 1px, transparent 1px),
        linear-gradient(90deg, rgba(52, 211, 153, 0.22) 1px, transparent 1px);
    background-size: 48px 48px;
    animation: tc-floor-move 2.4s linear infinite;
    will-change: transform;
}
@keyframes tc-floor-move {
    to { transform: translateY(48px); }
}
.tc-cap-scan {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 46%, rgba(34, 211, 238, 0.07) 50%, transparent 54%);
    animation: tc-scan 6s linear infinite;
    will-change: transform;
}
@keyframes tc-scan {
    from { transform: translateY(-55%); }
    to { transform: translateY(55%); }
}
.tc-cap-orb {
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    max-width: 120vw;
}
.tc-cap-orb-1 {
    top: -220px;
    left: -160px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.16), transparent 65%);
    animation: tc-orb 14s ease-in-out infinite alternate;
}
.tc-cap-orb-2 {
    bottom: -240px;
    right: -180px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.12), transparent 65%);
    animation: tc-orb 18s ease-in-out infinite alternate-reverse;
}
@keyframes tc-orb {
    to { transform: translate(60px, 40px) scale(1.1); }
}

/* Heading */
.tc-cap-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    border: 1px solid rgba(52, 211, 153, 0.3);
    background: rgba(16, 185, 129, 0.08);
    color: #6ee7b7;
    font-family: 'JetBrains Mono', 'Hind Siliguri', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.tc-cap-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7);
    animation: tc-dot-pulse 1.8s ease-out infinite;
}
@keyframes tc-dot-pulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
    100% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); }
}
.tc-capabilities .tc-cap-title {
    font-size: clamp(1.75rem, 5vw, 3rem) !important;
    line-height: 1.15 !important;
}
.tc-gradient-text {
    background: linear-gradient(90deg, #34d399, #22d3ee, #a7f3d0, #34d399);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: tc-gradient-shift 6s linear infinite;
}
@keyframes tc-gradient-shift {
    to { background-position: 300% 0; }
}

/* Card grid */
.tc-cap-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}
/* Odd card out in the 2-column phone layout spans the full row */
.tc-cap-list > .tc-capability:last-child:nth-child(odd) {
    grid-column: 1 / -1;
}
@media (min-width: 640px) {
    .tc-cap-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
    .tc-cap-list > .tc-capability:last-child:nth-child(odd) { grid-column: auto; }
}
@media (min-width: 1024px) {
    .tc-cap-list { gap: 1.25rem; }
}

.tc-capabilities .tc-capability {
    --mx: 50%;
    --my: 50%;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
    min-height: 140px;
    min-width: 0;
    padding: 1.1rem 1rem 1rem !important;
    border-radius: 1.1rem;
    background: linear-gradient(160deg, rgba(15, 23, 42, 0.92), rgba(2, 6, 23, 0.92));
    box-shadow: inset 0 0 0 1px rgba(52, 211, 153, 0.18), 0 10px 30px -12px rgba(0, 0, 0, 0.6);
    color: #e2e8f0;
    text-decoration: none;
    transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.35s ease;
}
@media (min-width: 768px) {
    .tc-capabilities .tc-capability { min-height: 168px; padding: 1.4rem 1.3rem 1.2rem !important; }
}

/* Rotating neon edge */
.tc-capability::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: inherit;
    padding: 1.5px;
    background: conic-gradient(from var(--tc-angle), transparent 0 62%, #34d399 78%, #22d3ee 88%, transparent 96%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    animation: tc-spin 3.5s linear infinite;
}
@keyframes tc-spin {
    to { --tc-angle: 360deg; }
}
/* Cursor spotlight */
.tc-capability::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: radial-gradient(240px circle at var(--mx) var(--my), rgba(52, 211, 153, 0.16), transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.tc-cap-index {
    position: absolute;
    top: 0.8rem;
    right: 0.95rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    color: rgba(110, 231, 183, 0.45);
}
.tc-cap-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 2.6rem;
    margin-bottom: 0.45rem;
    border-radius: 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    box-shadow: inset 0 0 0 1px rgba(52, 211, 153, 0.3);
    color: #6ee7b7;
    font-size: 1.1rem;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.tc-cap-label {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1.2;
    color: #f8fafc;
}
@media (min-width: 768px) {
    .tc-cap-label { font-size: 1.25rem; }
}
.tc-cap-meta {
    font-family: 'JetBrains Mono', 'Hind Siliguri', monospace;
    font-size: 0.68rem;
    line-height: 1.4;
    letter-spacing: 0.04em;
    color: #94a3b8;
}
.tc-cap-arrow {
    position: absolute;
    right: 1rem;
    bottom: 0.85rem;
    color: #34d399;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Hover / focus / tap */
.tc-capabilities .tc-capability:hover,
.tc-capabilities .tc-capability:focus-visible {
    transform: translateY(-6px);
    box-shadow: inset 0 0 0 1px rgba(52, 211, 153, 0.35), 0 18px 40px -12px rgba(16, 185, 129, 0.35);
    outline: none;
}
.tc-capabilities .tc-capability:active {
    transform: translateY(-2px) scale(0.98);
}
.tc-capability:hover::before,
.tc-capability:focus-visible::before,
.tc-capability:hover::after,
.tc-capability:focus-visible::after {
    opacity: 1;
}
.tc-capability:hover .tc-cap-icon,
.tc-capability:focus-visible .tc-cap-icon {
    transform: translateY(-2px) rotate(-8deg) scale(1.08);
    background: #10b981;
    color: #022c22;
    box-shadow: 0 0 22px rgba(16, 185, 129, 0.55);
}
.tc-capability:hover .tc-cap-arrow,
.tc-capability:focus-visible .tc-cap-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Touch screens: no hover, so give each card a slow neon edge in turn */
@media (hover: none) {
    .tc-capability::before {
        animation: tc-spin 3.5s linear infinite, tc-edge-cycle 9s linear infinite;
        animation-delay: 0s, calc(var(--i) * 1s);
    }
}
@keyframes tc-edge-cycle {
    0%, 100% { opacity: 0; }
    3%, 11% { opacity: 1; }
    14% { opacity: 0; }
}

/* Staggered entrance (only once JS is running, so cards never stay hidden) */
.tc-anim .tc-cap-list:not(.is-in) .tc-capability {
    opacity: 0;
    transform: translateY(24px) scale(0.97);
}
.tc-anim .tc-cap-list.is-in .tc-capability {
    /* "backwards" (not "both") so hover transforms work once the entrance finishes */
    animation: tc-cap-in 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) backwards;
    animation-delay: calc(var(--i) * 70ms);
}
@keyframes tc-cap-in {
    from { opacity: 0; transform: translateY(24px) scale(0.97); }
    to { opacity: 1; transform: none; }
}

/* ============================================
   STYLES FOR CLASSES USED IN THE PAGES
   ============================================ */

.text-gold { color: #d4af37; }
.border-gold { border-color: #d4af37; }
.bg-gold { background-color: #d4af37; }
.font-cinzel { font-family: 'Cinzel', serif; }

.selection-emerald ::selection {
    background: rgba(16, 185, 129, 0.35);
    color: #fff;
}

/* Logo wordmark */
.tc-brand-wordmark {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.05;
}
.tc-brand-main {
    font-family: 'Cinzel', serif;
    font-weight: 800;
    font-size: 1.35rem;
    color: #fff;
    letter-spacing: 0.02em;
}
.tc-brand-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: #6ee7b7;
}
@media (max-width: 380px) {
    .tc-brand-sub { display: none; }
}

/* Hero subtitle line */
.tc-hero-kicker {
    display: inline-block;
    margin-top: 0.6rem;
    font-size: clamp(1rem, 2.6vw, 1.75rem);
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #cbd5e1;
}

/* Pill link buttons */
.tc-link-button {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.7rem 1.4rem !important;
    border-radius: 999px !important;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: rgba(15, 23, 42, 0.6);
    color: #e2e8f0;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.tc-link-button:hover,
.tc-link-button:focus-visible {
    border-color: rgba(52, 211, 153, 0.7);
    background: rgba(16, 185, 129, 0.12);
    box-shadow: 0 0 24px rgba(16, 185, 129, 0.25);
    transform: translateY(-2px);
}
.tc-link-button.tc-primary {
    border-color: transparent;
    /* starts and ends on the same colour so the loop has no seam */
    background: linear-gradient(90deg, #10b981, #22d3ee, #10b981);
    background-size: 200% 100%;
    color: #022c22;
    font-weight: 700;
    box-shadow: 0 8px 24px -8px rgba(16, 185, 129, 0.6);
    animation: tc-btn-shift 4s linear infinite;
}
@keyframes tc-btn-shift {
    to { background-position: 200% 0; }
}
@media (max-width: 480px) {
    .tc-link-button { width: 100%; }
}

/* Founder portrait */
.tc-founder-portrait {
    display: block;
    width: clamp(180px, 45vw, 260px);
    height: auto;
    aspect-ratio: 700 / 740;
    object-fit: cover;
    margin: 0 auto 2rem;
    border-radius: 1.5rem;
    box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.45), 0 0 40px rgba(212, 175, 55, 0.15), 0 24px 60px -20px rgba(0, 0, 0, 0.7);
}

/* Gallery caption + lightbox */
.tc-gallery-caption {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    max-width: calc(100% - 2rem);
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    background: rgba(2, 6, 23, 0.7);
    color: #e2e8f0;
    font-size: 0.8rem;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}
body.tc-lightbox-open {
    overflow: hidden;
}
@media (max-width: 640px) {
    .gallery-slider { height: 62vw !important; min-height: 240px; }
}

/* Team cards */
.tc-profile-card {
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.tc-profile-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px -14px rgba(16, 185, 129, 0.45);
}

/* ============================================
   SITE-WIDE MOTION
   ============================================ */

/* Scroll progress bar (element added by js/site-mobile.js) */
.tc-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 10003;
    pointer-events: none;
    transform-origin: 0 50%;
    transform: scaleX(0);
    background: linear-gradient(90deg, #10b981, #22d3ee);
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
}

/* Section title underlines get a light sweep */
.h-1.rounded-full.bg-emerald-500 {
    position: relative;
    overflow: hidden;
}
.h-1.rounded-full.bg-emerald-500::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.85), transparent);
    transform: translateX(-100%);
    animation: tc-sweep 3.2s ease-in-out infinite;
}
@keyframes tc-sweep {
    60%, 100% { transform: translateX(100%); }
}

/* Shine across gradient buttons */
.btn-deep-gradient {
    position: relative;
    overflow: hidden;
}
.btn-deep-gradient::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: -60%;
    width: 50%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: skewX(-20deg);
    pointer-events: none;
}
@media (hover: hover) {
    .btn-deep-gradient:hover::after {
        animation: tc-shine 0.8s ease;
    }
}
@keyframes tc-shine {
    to { left: 130%; }
}

/* Cursor spotlight on product cards (desktop; JS feeds --mx/--my) */
@media (hover: hover) and (pointer: fine) {
    .tilt-card::after,
    .video-card::after {
        content: "";
        position: absolute;
        inset: 0;
        z-index: 30;
        pointer-events: none;
        border-radius: inherit;
        background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(52, 211, 153, 0.12), transparent 60%);
        opacity: 0;
        transition: opacity 0.35s ease;
    }
    .tilt-card:hover::after,
    .video-card:hover::after {
        opacity: 1;
    }
    .video-card { position: relative; }
}

/* Lighter background effects on phones */
@media (max-width: 640px) {
    .tc-cap-orb { width: 360px; height: 360px; }
    .tc-cap-floor { height: 45%; }
}

/* Calm everything down for people who ask for less motion */
@media (prefers-reduced-motion: reduce) {
    .tc-cap-floor-lines,
    .tc-cap-scan,
    .tc-cap-orb,
    .tc-cap-dot,
    .tc-gradient-text,
    .tc-link-button.tc-primary,
    .tc-capability::before,
    .h-1.rounded-full.bg-emerald-500::after {
        animation: none !important;
    }
    .tc-anim .tc-cap-list .tc-capability {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
    }
}