/* ================= ROBOTICS CLUB UCE GLOBAL DESIGN SYSTEM ================= */

/* Base typography defaults */
html, body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #09090b;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

/* Background video positioning */
#bg-video {
    object-position: center center;
    transition: transform 0.5s ease-out;
    filter: contrast(1.15) saturate(1.2) brightness(0.95);
}
@media (max-width: 768px) {
    #bg-video {
        object-position: 72% center; /* Center the tree branch frame horizontally on mobile devices */
        filter: none; /* Disable per-frame video filter on mobile for GPU performance */
    }
}

/* Matrix Grid Background overlay */
.grid-bg {
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 4rem 4rem;
    position: absolute;
    inset: 0;
    pointer-events: none;
}

/* Sleek Gradient Text */
.gradient-text-pink-orange {
    background: linear-gradient(135deg, #ff4b8b 0%, #ff8e53 50%, #00f5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation active state underline styling */
.nav-btn {
    position: relative;
}
.nav-btn::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: #ff6b35;
    transition: width 0.3s ease;
}
.nav-btn.active::after {
    width: 100%;
}

/* Page transitions / section transitions (Desktop only to prevent mobile lag) */
@media (min-width: 1025px) {
    section {
        transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.6s ease;
        opacity: 0.6;
        transform: scale(0.97);
    }
    section.active-section {
        transform: scale(1.02);
        opacity: 1;
    }
}
@media (max-width: 1024px) {
    section {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Floating Neon Leaf styling */
.leaf {
    position: absolute;
    background: linear-gradient(135deg, rgba(255, 75, 139, 0.95), rgba(255, 107, 53, 0.95));
    border-radius: 80% 0 85% 80%;
    pointer-events: none;
    filter: drop-shadow(0 0 10px rgba(255, 75, 139, 0.8));
    z-index: 5;
    will-change: transform, left, top;
    animation: floatDown 15s linear infinite;
}

@keyframes floatDown {
    0% {
        transform: translateY(-10vh) translateX(0) rotate(0deg) scale(0.9);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(110vh) translateX(-20vw) rotate(360deg) scale(0.4);
        opacity: 0;
    }
}

/* Glassmorphic elements with backdrop filters */
.glass-nav {
    background: rgba(9, 9, 11, 0.45);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.glass-panel {
    background: rgba(18, 18, 21, 0.35);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Mobile: reduce backdrop-filter blur and promote to GPU layer for smoother scrolling */
@media (max-width: 768px) {
    .glass-nav {
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        transform: translateZ(0);
        will-change: transform;
    }
    .glass-panel {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transform: translateZ(0);
    }
    .glass-btn,
    .glass-btn-pink {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }
}

/* ================= UIVERSE.IO NEUMORPHIC BUTTONS ================= */
.neu-button {
    background-color: #121215;
    border-radius: 50px;
    box-shadow: inset 3px 3px 8px #08080a, inset -3px -3px 8px #1c1c22;
    color: #d1d5db;
    cursor: pointer;
    font-size: 11px;
    font-family: monospace;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 0.05em;
    padding: 10px 24px;
    transition: all 0.2s ease-in-out;
    border: 2px solid rgba(255, 255, 255, 0.03);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.neu-button:hover {
    box-shadow: inset 1px 1px 4px #08080a, inset -1px -1px 4px #1c1c22, 0 4px 12px rgba(255, 107, 53, 0.15);
    color: #ff6b35;
    border-color: rgba(255, 107, 53, 0.2);
}

/* ================= EVENT TICKET DESIGN ================= */
.ticket-canvas {
    min-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2em;
}

.ticket-wrapper {
    --t-bg: rgba(30, 30, 36, 0.75);
    --t-bg-light: rgba(43, 43, 54, 0.75);
    --t-accent: #7c3aed;
    --t-accent-glow: rgba(124, 58, 237, 0.5);
    --t-text-main: #f8fafc;
    --t-text-muted: #94a3b8;
    font-size: 10px;
    perspective: 1000px;
    display: inline-block;
}

.ticket {
    position: relative;
    width: 22em;
    color: var(--t-text-main);
    font-family: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.6s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.05);
    background: transparent;
    filter: drop-shadow(0px 0px 10px rgba(0, 0, 0, 0.5));
}

.ticket-wrapper:hover .ticket {
    transform: rotateX(5deg) rotateY(-10deg) scale(1.02);
    box-shadow: 20px 20px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1), -5px -5px 20px var(--t-accent-glow);
}

.ticket::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 1em;
    pointer-events: none;
    background: linear-gradient(
        115deg,
        transparent 0%,
        transparent 40%,
        rgba(255, 255, 255, 0.1) 45%,
        rgba(255, 255, 255, 0.3) 50%,
        rgba(255, 255, 255, 0.1) 55%,
        transparent 60%,
        transparent 100%
    );
    z-index: 10;
    background-size: 250% 250%;
    background-position: 100% 100%;
    transition: background-position 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    mix-blend-mode: overlay;
}

.ticket-wrapper:hover .ticket::after {
    background-position: 0% 0%;
}

.t-main {
    padding: 2em;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at bottom left, transparent 1em, var(--t-bg) 1.05em), radial-gradient(circle at bottom right, transparent 1em, var(--t-bg) 1.05em);
    background-size: 51% 100%;
    background-position: bottom left, bottom right;
    background-repeat: no-repeat;
    border-top-left-radius: 1em;
    border-top-right-radius: 1em;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.t-main::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(rgba(124, 58, 237, 0.15) 1px, transparent 1px), linear-gradient(90deg, rgba(124, 58, 237, 0.15) 1px, transparent 1px);
    background-size: 2em 2em;
    opacity: 0.6;
    z-index: 0;
    pointer-events: none;
    transform: perspective(500px) rotateX(20deg) scale(1.5);
    animation: grid-scroll 20s linear infinite;
}

@keyframes grid-scroll {
    0% { background-position: 0 0; }
    100% { background-position: 0 4em; }
}

.t-content {
    position: relative;
    z-index: 1;
}

.t-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2em;
}

.t-logo {
    display: flex;
    align-items: center;
    gap: 0.5em;
    font-weight: 900;
    font-size: 1.2em;
    letter-spacing: -0.05em;
    color: #fff;
}

.t-logo svg {
    width: 1.5em;
    height: 1.5em;
    fill: var(--t-accent);
    filter: drop-shadow(0 0 5px var(--t-accent));
    animation: logo-pulse 3s ease-in-out infinite alternate;
}

@keyframes logo-pulse {
    0% { filter: drop-shadow(0 0 2px var(--t-accent)); }
    100% { filter: drop-shadow(0 0 10px var(--t-accent)) brightness(1.2); }
}

.t-type {
    font-size: 0.6em;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--t-accent);
    border: 1px solid var(--t-accent);
    padding: 0.4em 0.8em;
    border-radius: 99em;
    font-weight: 700;
}

.t-title {
    font-size: 2.5em;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 0.2em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.t-subtitle {
    color: var(--t-text-muted);
    font-size: 0.9em;
    margin-bottom: 2.5em;
}

.t-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5em;
    margin-bottom: 1em;
}

.t-detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.2em;
}

.t-label {
    font-size: 0.6em;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--t-text-muted);
}

.t-value {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--t-text-main);
}

.t-perforation {
    display: flex;
    justify-content: space-between;
    height: 1em;
    align-items: center;
    position: relative;
    z-index: 2;
}

.t-perf-line {
    flex-grow: 1;
    height: 0;
    border-top: 2px dashed rgba(255, 255, 255, 0.2);
    margin: 0 1.5em;
}

.t-stub {
    padding: 2em;
    background: radial-gradient(circle at top left, transparent 1em, var(--t-bg-light) 1.05em), radial-gradient(circle at top right, transparent 1em, var(--t-bg-light) 1.05em);
    background-size: 51% 100%;
    background-position: top left, top right;
    background-repeat: no-repeat;
    border-bottom-left-radius: 1em;
    border-bottom-right-radius: 1em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.t-barcode-container {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
}

.t-barcode {
    width: 10em;
    height: 3em;
    background: repeating-linear-gradient(90deg, #fff 0, #fff 2px, transparent 2px, transparent 4px, #fff 4px, #fff 5px, transparent 5px, transparent 8px, #fff 8px, #fff 12px, transparent 12px, transparent 15px, #fff 15px, #fff 16px, transparent 16px, transparent 18px);
    opacity: 0.8;
}

.t-barcode-id {
    font-family: monospace;
    font-size: 0.7em;
    color: var(--t-text-muted);
    letter-spacing: 0.2em;
    text-align: justify;
}

.t-admit {
    text-align: right;
}

.t-admit-text {
    font-size: 0.7em;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--t-text-muted);
}

.t-admit-num {
    font-size: 3em;
    font-weight: 900;
    line-height: 1;
    color: var(--t-accent);
    text-shadow: 0 0 15px var(--t-accent-glow);
}

.ticket-wrapper:active .ticket {
    transform: rotateX(15deg) rotateY(-5deg) scale(0.98);
}

.ticket-wrapper:active .t-stub {
    transform: translateY(5px) rotateZ(2deg);
    opacity: 0.8;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Glassmorphic premium button styling */
.glass-btn {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.35);
    box-shadow: 0 12px 40px 0 rgba(255, 107, 53, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.glass-btn-pink {
    background: rgba(255, 75, 139, 0.15);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 75, 139, 0.25);
    color: #ffffff;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3), inset 0 1px 1px rgba(255, 75, 139, 0.15);
}

.glass-btn-pink:hover {
    background: rgba(255, 75, 139, 0.25);
    border-color: rgba(255, 75, 139, 0.45);
    box-shadow: 0 12px 40px 0 rgba(255, 75, 139, 0.4), inset 0 1px 1px rgba(255, 75, 139, 0.25);
    transform: translateY(-2px);
}

/* ================= MEMBERSHIP CARD DESIGN ================= */
.container-card {
    position: relative;
    width: 190px;
    height: 254px;
    transition: 200ms;
}

.container-card:active {
    width: 180px;
    height: 245px;
}

#card {
    position: absolute;
    inset: 0;
    z-index: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 20px;
    transition: 700ms;
    background: linear-gradient(45deg, #1a1a1a, #262626);
    border: 2px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3), inset 0 0 20px rgba(0, 0, 0, 0.2);
}

.card-content {
    position: relative;
    width: 100%;
    height: 100%;
}

#prompt {
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    transition: 300ms ease-in-out;
    position: absolute;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.title {
    opacity: 0;
    transition: 300ms ease-in-out;
    position: absolute;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 4px;
    text-align: center;
    width: 100%;
    padding-top: 20px;
    background: linear-gradient(45deg, #00ffaa, #00a2ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 15px rgba(0, 255, 170, 0.3));
    text-shadow: 0 0 10px rgba(92, 103, 255, 0.5), 0 0 20px rgba(92, 103, 255, 0.3);
}

.subtitle {
    position: absolute;
    bottom: 40px;
    width: 100%;
    text-align: center;
    font-size: 12px;
    letter-spacing: 2px;
    transform: translateY(30px);
    color: rgba(255, 255, 255, 0.6);
}

.highlight {
    color: #00ffaa;
    margin-left: 5px;
    background: linear-gradient(90deg, #5c67ff, #ad51ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
}

.glowing-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.glow-1, .glow-2, .glow-3 {
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(0, 255, 170, 0.3) 0%, rgba(0, 255, 170, 0) 70%);
    filter: blur(15px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glow-1 { top: -20px; left: -20px; }
.glow-2 { top: 50%; right: -30px; transform: translateY(-50%); }
.glow-3 { bottom: -20px; left: 30%; }

.card-particles span {
    position: absolute;
    width: 3px;
    height: 3px;
    background: #00ffaa;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tracker:hover ~ #card .title {
    opacity: 1;
    transform: translateY(-10px);
}

.tracker:hover ~ #card .glowing-elements div {
    opacity: 1;
}

.tracker:hover ~ #card .card-particles span {
    animation: particleFloat 2s infinite;
}

@keyframes particleFloat {
    0% { transform: translate(0, 0); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translate(calc(var(--x, 0) * 30px), calc(var(--y, 0) * 30px)); opacity: 0; }
}

.card-particles span:nth-child(1) { --x: 1; --y: -1; top: 40%; left: 20%; }
.card-particles span:nth-child(2) { --x: -1; --y: -1; top: 60%; right: 20%; }
.card-particles span:nth-child(3) { --x: 0.5; --y: 1; top: 20%; left: 40%; }
.card-particles span:nth-child(4) { --x: -0.5; --y: 1; top: 80%; right: 40%; }
.card-particles span:nth-child(5) { --x: 1; --y: 0.5; top: 30%; left: 60%; }
.card-particles span:nth-child(6) { --x: -1; --y: 0.5; top: 70%; right: 60%; }

#card::before {
    content: "";
    background: radial-gradient(circle at center, rgba(0, 255, 170, 0.1) 0%, rgba(0, 162, 255, 0.05) 50%, transparent 100%);
    filter: blur(20px);
    opacity: 0;
    width: 150%;
    height: 150%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
}

.tracker:hover ~ #card::before { opacity: 1; }

.tracker {
    position: absolute;
    z-index: 20;
    width: 100%;
    height: 100%;
}

.tracker:hover { cursor: pointer; }

.tracker:hover ~ #card #prompt { opacity: 0; }

.tracker:hover ~ #card {
    transition: 300ms;
    filter: brightness(1.1);
}

.container-card:hover #card::before {
    transition: 200ms;
    content: "";
    opacity: 80%;
}

.canvas {
    perspective: 800px;
    inset: 0;
    z-index: 10;
    position: absolute;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr 1fr 1fr;
    gap: 0px 0px;
    grid-template-areas:
        "tr-1 tr-2 tr-3 tr-4 tr-5"
        "tr-6 tr-7 tr-8 tr-9 tr-10"
        "tr-11 tr-12 tr-13 tr-14 tr-15"
        "tr-16 tr-17 tr-18 tr-19 tr-20"
        "tr-21 tr-22 tr-23 tr-24 tr-25";
}

.tr-1 { grid-area: tr-1; }
.tr-2 { grid-area: tr-2; }
.tr-3 { grid-area: tr-3; }
.tr-4 { grid-area: tr-4; }
.tr-5 { grid-area: tr-5; }
.tr-6 { grid-area: tr-6; }
.tr-7 { grid-area: tr-7; }
.tr-8 { grid-area: tr-8; }
.tr-9 { grid-area: tr-9; }
.tr-10 { grid-area: tr-10; }
.tr-11 { grid-area: tr-11; }
.tr-12 { grid-area: tr-12; }
.tr-13 { grid-area: tr-13; }
.tr-14 { grid-area: tr-14; }
.tr-15 { grid-area: tr-15; }
.tr-16 { grid-area: tr-16; }
.tr-17 { grid-area: tr-17; }
.tr-18 { grid-area: tr-18; }
.tr-19 { grid-area: tr-19; }
.tr-20 { grid-area: tr-20; }
.tr-21 { grid-area: tr-21; }
.tr-22 { grid-area: tr-22; }
.tr-23 { grid-area: tr-23; }
.tr-24 { grid-area: tr-24; }
.tr-25 { grid-area: tr-25; }

.tr-1:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(20deg) rotateY(-10deg) rotateZ(0deg); }
.tr-2:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(20deg) rotateY(-5deg) rotateZ(0deg); }
.tr-3:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(20deg) rotateY(0deg) rotateZ(0deg); }
.tr-4:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(20deg) rotateY(5deg) rotateZ(0deg); }
.tr-5:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(20deg) rotateY(10deg) rotateZ(0deg); }
.tr-6:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(10deg) rotateY(-10deg) rotateZ(0deg); }
.tr-7:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(10deg) rotateY(-5deg) rotateZ(0deg); }
.tr-8:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(10deg) rotateY(0deg) rotateZ(0deg); }
.tr-9:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(10deg) rotateY(5deg) rotateZ(0deg); }
.tr-10:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(10deg) rotateY(10deg) rotateZ(0deg); }
.tr-11:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(0deg) rotateY(-10deg) rotateZ(0deg); }
.tr-12:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(0deg) rotateY(-5deg) rotateZ(0deg); }
.tr-13:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg); }
.tr-14:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(0deg) rotateY(5deg) rotateZ(0deg); }
.tr-15:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(0deg) rotateY(10deg) rotateZ(0deg); }
.tr-16:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-10deg) rotateY(-10deg) rotateZ(0deg); }
.tr-17:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-10deg) rotateY(-5deg) rotateZ(0deg); }
.tr-18:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-10deg) rotateY(0deg) rotateZ(0deg); }
.tr-19:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-10deg) rotateY(5deg) rotateZ(0deg); }
.tr-20:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-10deg) rotateY(10deg) rotateZ(0deg); }
.tr-21:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-20deg) rotateY(-10deg) rotateZ(0deg); }
.tr-22:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-20deg) rotateY(-5deg) rotateZ(0deg); }
.tr-23:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-20deg) rotateY(0deg) rotateZ(0deg); }
.tr-24:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-20deg) rotateY(5deg) rotateZ(0deg); }
.tr-25:hover ~ #card { transition: 125ms ease-in-out; transform: rotateX(-20deg) rotateY(10deg) rotateZ(0deg); }

.noselect {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.card-glare {
    position: absolute;
    inset: 0;
    background: linear-gradient(125deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.05) 45%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0.05) 55%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity 300ms;
}

.cyber-lines span {
    position: absolute;
    background: linear-gradient(90deg, transparent, rgba(92, 103, 255, 0.2), transparent);
}

.cyber-lines span:nth-child(1) { top: 20%; left: 0; width: 100%; height: 1px; transform: scaleX(0); transform-origin: left; animation: lineGrow 3s linear infinite; }
.cyber-lines span:nth-child(2) { top: 40%; right: 0; width: 100%; height: 1px; transform: scaleX(0); transform-origin: right; animation: lineGrow 3s linear infinite 1s; }
.cyber-lines span:nth-child(3) { top: 60%; left: 0; width: 100%; height: 1px; transform: scaleX(0); transform-origin: left; animation: lineGrow 3s linear infinite 2s; }
.cyber-lines span:nth-child(4) { top: 80%; right: 0; width: 100%; height: 1px; transform: scaleX(0); transform-origin: right; animation: lineGrow 3s linear infinite 1.5s; }

.corner-elements span {
    position: absolute;
    width: 15px;
    height: 15px;
    border: 2px solid rgba(92, 103, 255, 0.3);
    transition: all 0.3s ease;
}

.corner-elements span:nth-child(1) { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.corner-elements span:nth-child(2) { top: 10px; right: 10px; border-left: 0; border-bottom: 0; }
.corner-elements span:nth-child(3) { bottom: 10px; left: 10px; border-right: 0; border-top: 0; }
.corner-elements span:nth-child(4) { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }

.scan-line {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent, rgba(92, 103, 255, 0.1), transparent);
    transform: translateY(-100%);
    animation: scanMove 2s linear infinite;
}

@keyframes lineGrow {
    0% { transform: scaleX(0); opacity: 0; }
    50% { transform: scaleX(1); opacity: 1; }
    100% { transform: scaleX(0); opacity: 0; }
}

@keyframes scanMove {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

#card:hover .card-glare { opacity: 1; }
#card:hover .corner-elements span {
    border-color: rgba(92, 103, 255, 0.8);
    box-shadow: 0 0 10px rgba(92, 103, 255, 0.5);
}

/* Mobile: reduce lightbox backdrop blur for smoother overlay rendering */
@media (max-width: 768px) {
    #photo-lightbox {
        backdrop-filter: blur(10px) !important;
        -webkit-backdrop-filter: blur(10px) !important;
    }
}

/* Mobile: disable heavy 3D card animations and hidden tracker grids for smoother scrolling */
@media (max-width: 768px) {
    .card-particles, 
    .cyber-lines span, 
    .scan-line {
        animation: none !important;
        display: none !important;
    }
    .tracker {
        display: none !important;
    }
    #card {
        transform: none !important;
        transition: none !important;
    }
}