/* --- Base & Animation Styles --- */
html, body { 
    width: 100%;
    overflow-x: hidden; /* Prevent horizontal scroll globally */
}
/* --- Home Page Countdown Styles --- */
.countdown-timer-home {
    background: rgba(2, 16, 24, 0.7);
    border-radius: 1.5rem;
    box-shadow: 0 0 20px rgba(0, 245, 212, 0.15);
    padding: 1rem 2rem;
    margin-bottom: 0.5rem;
    font-family: 'Space Grotesk', sans-serif;
    backdrop-filter: blur(4px);
}
.countdown-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 70px;
}
.countdown-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #00f5d4;
    text-shadow: 0 0 10px rgba(0, 245, 212, 0.5);
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
    transition: color 0.3s, text-shadow 0.3s;
}
.countdown-label {
    font-size: 1rem;
    color: #a0aec0;
    font-weight: 500;
    letter-spacing: 0.03em;
}
html {
    scroll-behavior: smooth; 
}
body {
    font-family: 'Inter', sans-serif;
    background-color: #010811; 
    color: #f0f0f0;
}
/* Lock body scroll when a modal or overlay is open */
body.modal-open {
    overflow: hidden;
}
.canvas-background { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
#synapse-canvas {
    background-color: #010811;
}
.content-wrapper { 
    position: relative; 
    z-index: 1;
    width: 100%;
    height: 100vh;
    overflow-y: auto; /* Allow content to scroll */
    transition: filter 0.4s ease-in-out, transform 0.4s ease-in-out;
}
.content-wrapper.is-blurred {
    filter: blur(30px) brightness(0.3);
    transform: scale(0.98);
    overflow: hidden;
}
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Header & Hero Styles --- */
.header-nav {
    background-color: rgba(2, 16, 24, 0.5);
    backdrop-filter: blur(4px);
    transition: background-color 0.4s ease-out, backdrop-filter 0.4s ease-out;
}
.header-nav.scrolled {
    background-color: rgba(2, 16, 24, 0.85);
    backdrop-filter: blur(12px);
}
.font-brand { font-family: 'Cinzel', serif; }
.font-hero-teko { font-family: 'Teko', sans-serif; letter-spacing: 0.1em; }
.bio-gradient-text {
    background: linear-gradient(45deg, #00f5d4, #00aaff, #ad53e6, #00f5d4);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-animation 8s ease infinite;
}
/* Minimal floating icon animation */
.floating-icon-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 56px;
}
.floating-icon {
    animation: float-icon 2.5s ease-in-out infinite;
    filter: drop-shadow(0 0 12px #00f5d4);
}
@keyframes float-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}


/* Soft glowing effect behind countdown */
.countdown-glow-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.countdown-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 320px;
    height: 80px;
    background: radial-gradient(circle, #00f5d4 0%, transparent 70%);
    opacity: 0.18;
    filter: blur(18px);
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
}
.countdown-timer-home {
    position: relative;
    z-index: 1;
}

/* Subtle hover effect for explore button */
.hero-explore-btn {
    transition: box-shadow 0.3s, transform 0.2s;
}
.hero-explore-btn:hover {
    box-shadow: 0 0 32px #00f5d4;
    transform: scale(1.04);
}
@keyframes gradient-animation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.btn-glow {
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.3s ease-in-out, transform 0.2s ease;
}
.btn-glow:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px 0px rgba(0, 245, 212, 0.5);
}

/* --- Section Divider Styles --- */
.section-divider {
    width: 100%;
    height: 100px;
    margin: 2rem 0;
}
.section-divider svg {
    width: 100%;
    height: 100%;
}
.divider-glow {
    animation: pulse-glow 4s ease-in-out infinite alternate;
}
@keyframes pulse-glow {
    from {
        filter: drop-shadow(0 0 3px rgba(0, 245, 212, 0.7));
    }
    to {
        filter: drop-shadow(0 0 10px rgba(0, 170, 255, 0.9));
    }
}

/* --- About Section --- */
#about-canvas {
    width: 100%;
    height: 400px;
    cursor: grab;
}

/* --- Hackfest Carousel & Card Styles --- */
.hackfest-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
}
.hackfest-slider {
    display: flex;
    transition: transform 0.5s ease-in-out;
}
.hackfest-slide {
    flex: 0 0 80%;
    margin-left: 10%;
    margin-right: 10%;
    min-height: 450px;
    perspective: 1500px; 
}
.flip-container {
    width: 100%;
    height: 100%;
    position: relative;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    transform-style: preserve-3d;
}
.flip-container.is-flipped {
    transform: rotateY(360deg);
}
.hackfest-card {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    background: 
        linear-gradient(rgba(10, 17, 34, 0.8), rgba(10, 17, 34, 0.95)),
        radial-gradient(rgba(0, 245, 212, 0.05) 1px, transparent 1px);
    background-size: cover, 10px 10px;
    border: 1px solid rgba(34, 211, 238, 0.3);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
    overflow: hidden;
    transform-style: preserve-3d;
}
.flip-container:hover .card-front:not(.is-flipping .card-front) {
    transform: scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 245, 212, 0.2), 0 0 40px rgba(0, 245, 212, 0.3) inset;
    border-color: rgba(0, 245, 212, 1);
}
.card-back {
    transform: rotateY(180deg);
    background: linear-gradient(45deg, rgba(15, 23, 42, 0.9), rgba(2, 16, 24, 0.9));
}
.card-inner {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    padding: 1.5rem;
    text-align: center;
}
.hackfest-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(0, 245, 212, 0.7);
    animation: scan-line 4s linear infinite;
    box-shadow: 0 0 15px rgba(0, 245, 212, 0.9);
}
@keyframes scan-line {
    0% { transform: translateY(-10px); }
    100% { transform: translateY(calc(100% + 10px)); }
}
.corner-glow {
    position: absolute;
    width: 25px;
    height: 25px;
    border-style: solid;
    border-color: rgba(0, 245, 212, 0.7);
    opacity: 0;
    transition: opacity 0.3s ease;
    animation: pulse-corners 3s infinite ease-in-out;
}
.flip-container:hover .corner-glow {
    opacity: 1;
}
.corner-top-left { top: -2px; left: -2px; border-width: 2px 0 0 2px; }
.corner-top-right { top: -2px; right: -2px; border-width: 2px 2px 0 0; }
.corner-bottom-left { bottom: -2px; left: -2px; border-width: 0 0 2px 2px; }
.corner-bottom-right { bottom: -2px; right: -2px; border-width: 0 2px 2px 0; }
@keyframes pulse-corners {
    0%, 100% { box-shadow: 0 0 8px rgba(0, 245, 212, 0.7); }
    50% { box-shadow: 0 0 20px rgba(0, 245, 212, 1); }
}
.flip-container:hover .hackfest-icon {
    animation: icon-float 3s ease-in-out infinite;
}
@keyframes icon-float {
    0%, 100% { transform: translateY(0px) translateZ(50px) scale(1.0); }
    50% { transform: translateY(-15px) translateZ(50px) scale(1.1); }
}
.hackfest-icon {
    transition: transform 0.3s ease;
    transform: translateZ(50px);
    color: #00f5d4;
}
.hackfest-card h3 {
     font-size: 2.5rem; /* Increased font size */
     line-height: 2.75rem;
     text-shadow: 0 0 10px rgba(0, 245, 212, 0.5);
     transform: translateZ(30px);
}
.hackfest-card p {
    transform: translateZ(20px);
}
.hackfest-card .btn-glow {
    transform: translateZ(40px);
}
.register-now-btn {
    animation: pulse-glow-strong 2s ease-in-out infinite alternate;
}
@keyframes pulse-glow-strong {
    from {
        transform: scale(1) translateZ(40px);
        box-shadow: 0 0 15px 0px rgba(0, 245, 212, 0.4);
    }
    to {
        transform: scale(1.05) translateZ(40px);
        box-shadow: 0 0 35px 5px rgba(0, 245, 212, 0.7);
    }
}
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0,0,0,0.3);
    color: white;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 1rem;
    cursor: pointer;
    z-index: 10;
    border-radius: 50%;
    transition: all 0.3s;
}
.carousel-arrow:hover {
    background-color: rgba(0, 245, 212, 0.2);
    border-color: rgba(0, 245, 212, 0.5);
}
.arrow-left { left: 1rem; }
.arrow-right { right: 1rem; }
.hackfest-nav-btn {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #a0aec0;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}
.hackfest-nav-btn:hover {
    background-color: rgba(0, 245, 212, 0.2);
    color: #00f5d4;
}
.hackfest-nav-btn.active {
    background-color: #00f5d4;
    color: #010811;
    box-shadow: 0 0 15px rgba(0, 245, 212, 0.5);
}

/* Stunning Flip Effect */
@keyframes stunning-flip-effect {
    0%, 100% {
        transform: scale(1);
        filter: brightness(1);
    }
    50% {
        transform: scale(1.05);
        filter: brightness(2.5) drop-shadow(0 0 20px rgba(0, 245, 212, 0.9));
    }
}
.is-flipping .card-front {
    animation: stunning-flip-effect 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Thematic Backgrounds */
.card-bg-wrapper {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    opacity: 0.3;
}
.card-bg-wrapper svg {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150%;
    height: 150%;
    transform: translate(-50%, -50%);
}

/* CRISPR BG */
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.crispr-bg .dna-strand { animation: rotate 40s linear infinite; transform-origin: center; }
.crispr-bg .cutter, .crispr-bg .cutter-glow {
    animation: crispr-path 8s ease-in-out infinite;
}
@keyframes crispr-path {
    from { motion-offset: 0%; }
    to { motion-offset: 100%; }
}

/* Cancer Bio BG */
@keyframes pulse-organic { 0%, 100% { transform: scale(1); } 25% { transform: scale(0.95); } 75% { transform: scale(1.05); } }
@keyframes drift { 0% { transform: translate(0, 0); } 25% { transform: translate(5px, 10px); } 50% { transform: translate(-5px, -10px); } 75% { transform: translate(10px, -5px); } 100% { transform: translate(0, 0); } }
.cancer-bio-bg .cell { animation: pulse-organic 10s ease-in-out infinite; transform-origin: center; }
.cancer-bio-bg .cell:nth-child(2) { animation-delay: -2.5s; }
.cancer-bio-bg .cell:nth-child(3) { animation-delay: -5s; }
.cancer-bio-bg .cell:nth-child(4) { animation-delay: -7.5s; }
.cancer-bio-bg .particle { animation: drift 12s ease-in-out infinite; }
.cancer-bio-bg .particle:nth-child(2) { animation-duration: 15s; animation-delay: -5s; }
.cancer-bio-bg .particle:nth-child(3) { animation-duration: 10s; animation-delay: -8s; }

/* Astrobiology BG */
@keyframes orbit { from { transform: rotate(0deg) translateX(150px) rotate(0deg); } to   { transform: rotate(360deg) translateX(150px) rotate(-360deg); } }
@keyframes twinkle { 0%, 100% { r: 1; opacity: 0.5; } 50% { r: 2.5; opacity: 1; filter: url(#starGlow); } }
.astrobiology-bg .planet-orbit { transform-origin: 200px 200px; animation: orbit 25s linear infinite; }
.astrobiology-bg .planet { animation: rotate 10s linear infinite reverse; }
.astrobiology-bg .star { animation: twinkle 4s ease-in-out infinite; }
.astrobiology-bg .star:nth-child(2n) { animation-delay: -1s; }
.astrobiology-bg .star:nth-child(3n) { animation-delay: -2s; }
.astrobiology-bg .spaceship { offset-path: path('M -50 100 C 150 100, 250 300, 450 300'); animation: crispr-path 10s linear infinite; }

/* Species Recovery BG */
@keyframes draw-track { from { stroke-dashoffset: 200; } to { stroke-dashoffset: 0; } }
@keyframes gentle-sway { 0%, 100% { transform: rotate(-5deg); } 50% { transform: rotate(5deg); } }
@keyframes peek-left { 0%, 20%, 100% { transform: translate(-100%, 0); } 30%, 70% { transform: translate(10px, 0); } 80% { transform: translate(-100%, 0); } }
@keyframes peek-right { 0%, 20%, 100% { transform: translate(100%, 0); } 30%, 70% { transform: translate(-10px, 0); } 80% { transform: translate(100%, 0); } }
.species-recovery-bg .track { stroke-dasharray: 200; animation: draw-track 6s ease-in-out infinite alternate; }
.species-recovery-bg .leaf { transform-origin: center; animation: gentle-sway 10s ease-in-out infinite alternate; }
.species-recovery-bg .leaf:nth-child(2) { animation-delay: -5s; }
.species-recovery-bg .track:nth-child(2) { animation-delay: -2s; }
.species-recovery-bg .track:nth-child(3) { animation-delay: -4s; }
.species-recovery-bg .peeking-cat { animation: peek-left 8s ease-in-out infinite; animation-delay: -1s; }
.species-recovery-bg .peeking-dog { animation: peek-right 8s ease-in-out infinite; animation-delay: -5s; }


/* --- Eagle Wing Timeline Styles --- */
.Details-container-vertical {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}
.Details-container-vertical::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background-image: linear-gradient(to bottom, #0ea5e9, #22d3ee, #0ea5e9);
    border-radius: 2px;
    box-shadow: 0 0 10px #22d3ee, 0 0 20px #22d3ee;
    z-index: 0;
    animation: pulse-glow 4s ease-in-out infinite alternate;
}
.day-heading {
    display: inline-block;
    padding: 0.75rem 2.5rem;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(34, 211, 238, 0.5);
    border-radius: 0.5rem;
    font-family: 'Audiowide', cursive;
    font-size: 2rem;
    color: #00f5d4;
    margin: 4rem auto 2rem;
    text-shadow: 0 0 15px rgba(0, 245, 212, 0.5);
    box-shadow: 0 4px 10px rgba(0,0,0,0.4), inset 0 1px 1px rgba(255,255,255,0.2);
    position: relative;
    z-index: 5;
    backdrop-filter: blur(5px);
    transform: perspective(500px) rotateX(5deg);
    animation: pulse-glow-strong 3s ease-in-out infinite alternate;
}
.Details-moment {
    position: relative;
    padding: 4rem 0;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 2rem;
}
.Details-trunk {
    position: relative;
    z-index: 2;
    grid-column: 2;
    text-align: center;
    width: 300px;
}
.Details-trunk .Details-card {
    border-width: 2px;
    border-color: rgba(0, 245, 212, 0.5);
    box-shadow: 0 0 25px rgba(0, 245, 212, 0.2);
}
.Details-branch {
    position: relative;
    z-index: 2;
}
.Details-branch.branch-left {
    text-align: right;
    grid-column: 1;
}
.Details-branch.branch-right {
    text-align: left;
    grid-column: 3;
}
.Details-branch::before {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 2px;
    width: 2rem;
    background: rgba(34, 211, 238, 0.5);
}
.Details-branch.branch-left::before {
    right: -2rem;
}
.Details-branch.branch-right::before {
    left: -2rem;
}
.Details-branch::after { /* Arrowhead */
    content: '';
    position: absolute;
    top: 50%;
    width: 10px;
    height: 10px;
    border-top: 2px solid rgba(34, 211, 238, 0.5);
    border-right: 2px solid rgba(34, 211, 238, 0.5);
}
.Details-branch.branch-left::after {
    right: -2rem;
    transform: translateY(-50%) rotate(135deg);
}
.Details-branch.branch-right::after {
    left: -2rem;
    transform: translateY(-50%) rotate(-45deg);
}
.Details-card {
    border: 1px solid rgba(34, 211, 238, 0.3);
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    box-shadow: 0 0 15px rgba(0, 245, 212, 0.1);
    position: relative;
    overflow: hidden;
}
.Details-card:hover {
    transform: scale(1.03);
    box-shadow: 0 0 25px rgba(0, 245, 212, 0.4);
    border-color: rgba(0, 245, 212, 0.7);
}
.final-moment {
    grid-template-columns: 1fr;
}
.final-moment .Details-trunk {
    grid-column: 1;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

/* --- Font Styles for Overlay --- */
#full-Details-overlay .Details-trunk h3 {
    font-family: 'Audiowide', cursive;
    font-size: 1.75rem;
    line-height: 2.25rem;
    color: #00f5d4;
}
#full-Details-overlay .Details-branch h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.125rem;
    line-height: 1.75rem;
}
.event-time {
    font-family: 'Space Grotesk', sans-serif;
    color: #9ca3af;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* --- Event Details Modal Styles --- */
#event-details-modal {
    transition: opacity 0.3s ease-in-out;
}
#modal-content {
    transition: transform 0.3s ease-in-out;
}
#event-details-modal.is-visible {
    opacity: 1;
    pointer-events: auto;
}
#event-details-modal.is-visible #modal-content {
    transform: scale(1);
}

/* --- Full Details Overlay Styles --- */
#full-Details-overlay, #full-themes-overlay, #full-registration-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    /* New transition effect */
    transform: translateY(50px) skewY(1deg);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}
/* Hide scrollbar for Chrome, Safari and Opera */
.overlay-scroller::-webkit-scrollbar {
    display: none;
}
.overlay-scroller {
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
    overflow-y: auto;
    height: 100%;
}

#full-Details-overlay.is-visible, #full-themes-overlay.is-visible, #full-registration-overlay.is-visible {
    opacity: 1;
    pointer-events: auto;
    /* New transition effect */
    transform: translateY(0) skewY(0);
}
#full-Details-close, #full-themes-close, #full-registration-close {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 110;
}

#full-themes-overlay {
    background-color: transparent;
}
.theme-card {
    border: 1px solid rgba(34, 211, 238, 0.3);
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.theme-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 245, 212, 0.2);
}
.theme-card .card-content {
    flex-grow: 1;
}

/* Registration Page Styles */
#full-registration-overlay .registration-card {
     background: rgba(15, 23, 42, 0.6);
     border: 1px solid rgba(34, 211, 238, 0.3);
     backdrop-filter: blur(10px);
}


/* --- Location & Contact Styles --- */
.interactive-card {
    transition: transform 0.1s linear;
    border: 1px solid rgba(34, 211, 238, 0.3);
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
}
.map-container iframe {
    filter: invert(90%) hue-rotate(180deg);
    border-radius: 0.5rem;
}
.travel-icon {
     background: rgba(0, 245, 212, 0.1);
     border: 1px solid rgba(0, 245, 212, 0.2);
     border-radius: 50%;
     padding: 0.75rem;
     margin-right: 1rem;
     color: #00f5d4;
}
.contact-icon-wrapper {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.contact-icon-wrapper:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 245, 212, 0.4);
}

/* --- Responsive Details --- */
@media screen and (max-width: 768px) {
    .Details-moment {
        display: flex;
        flex-direction: column;
        padding: 20px 0;
    }
    .Details-trunk {
        order: 1;
        width: calc(100% - 40px);
        margin: 0 0 1.5rem 40px;
        padding-left: 0;
        text-align: left;
    }
    .Details-branch {
        order: 2;
        width: calc(100% - 40px);
        margin: 0 0 1.5rem 40px;
        padding-left: 0 !important;
        text-align: left !important;
    }
    .Details-branch::before, .Details-branch::after {
        display: none;
    }
    .Details-container-vertical::before {
        left: 20px;
    }
    .hackfest-slide {
        flex: 0 0 90%;
        margin-left: 5%;
        margin-right: 5%;
    }
    .arrow-left { left: -0.5rem; }
    .arrow-right { right: -0.5rem; }
    #contact .flex-col.md\:flex-row {
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 1.5rem !important;
    }
    #contact .text-center,
    #contact .md\:text-left {
        text-align: center !important;
        margin-left: auto !important;
        margin-right: auto !important;
    }
}