/* Custom Styles for Awesome AI Models */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
    cursor: none; /* Hide default cursor */
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.dark ::-webkit-scrollbar-track {
    background: #1f2937;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #6366f1, #8b5cf6);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #4f46e5, #7c3aed);
}

/* Dynamic Gradient Background */
.gradient-bg {
    /* Brand aligned colors: Indigo, Purple, Pink, Blue */
    background: linear-gradient(-45deg, #6366f1, #8b5cf6, #ec4899, #3b82f6);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    opacity: 0.08; /* Slightly reduced for better text contrast in light mode */
}

/* Dot Matrix Overlay */
.gradient-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: radial-gradient(#6366f1 2px, transparent 2px);
    background-size: 30px 30px;
    opacity: 0.3;
    pointer-events: none;
    animation: matrix-flow 60s linear infinite;
}

.dark .gradient-bg {
    background: linear-gradient(-45deg, #1a1a2e, #16213e, #312e81, #4c1d95);
    opacity: 0.3;
}

.dark .gradient-bg::before {
    background-image: radial-gradient(#a5b4fc 2px, transparent 2px);
    opacity: 0.15;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes matrix-flow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 30px); }
}

/* Custom Cursor */
.custom-cursor-none * {
    cursor: none !important;
}

#cursor {
    pointer-events: none;
    z-index: 9999;
}

#cursor-dot {
    pointer-events: none;
    z-index: 9999;
}

/* Hover effect for cursor */
.hover-active {
    transform: scale(1.5);
    background-color: rgba(99, 102, 241, 0.1);
    border-color: transparent;
}

/* Glass morphism effect */
.backdrop-blur-lg {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Timeline Container */
#timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
    perspective: 1000px; /* Enable 3D perspective */
}

/* Central Vertical Line */
#timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(to bottom, transparent, rgba(99, 102, 241, 0.5), rgba(139, 92, 246, 0.5), transparent);
    transform: translateX(-50%);
}

/* Timeline Row */
.timeline-row {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-bottom: 4rem;
    position: relative;
}

/* Columns */
.timeline-col {
    width: 45%;
    position: relative;
    display: flex;
    flex-direction: column;
}

.timeline-col.left {
    align-items: flex-end;
    padding-right: 3rem;
}

.timeline-col.right {
    align-items: flex-start;
    padding-left: 3rem;
}

/* Center Dot */
.timeline-dot-wrapper {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    background: white;
    border-radius: 50%;
}

.dark .timeline-dot-wrapper {
    background: #111827; /* gray-900 */
}

.timeline-dot {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border: 3px solid #fff; 
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.dark .timeline-dot {
    border-color: #1f2937; /* gray-800 */
}

.timeline-row:hover .timeline-dot {
    transform: scale(1.5);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

/* Connector Line */
.timeline-connector {
    position: absolute;
    top: 50%;
    height: 2px;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.5), rgba(139, 92, 246, 0.5));
    width: 3rem; 
}

.timeline-col.left .timeline-connector {
    right: 0;
}

.timeline-col.right .timeline-connector {
    left: 0;
}

/* Timeline Date Label (Opposite Side) */
.timeline-date-label {
    font-family: monospace;
    font-size: 1.25rem;
    font-weight: 700;
    color: rgba(99, 102, 241, 0.8);
    opacity: 0.8;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.timeline-row:hover .timeline-date-label {
    opacity: 1;
    transform: scale(1.05);
    color: #6366f1;
}

/* Timeline Card */
.timeline-card {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 36rem; /* max-w-xl equivalent */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d; /* Enable 3D transform */
}

.timeline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(99, 102, 241, 0.1),
        transparent
    );
    transition: left 0.5s;
    z-index: 1;
}

.timeline-card:hover::before {
    left: 100%;
}

/* Grid Card Hover Effect */
.grid-card {
    position: relative;
    overflow: hidden;
    height: 100%;
    transform-style: preserve-3d;
}

/* Gradient text animation */
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.bg-clip-text {
    -webkit-background-clip: text;
    background-clip: text;
    background-size: 200% 200%;
}

/* Common Util Classes */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Typewriter Cursor */
.typewriter-cursor::after {
    content: '|';
    animation: blink 1s step-end infinite;
    color: #6366f1;
}

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

/* Mobile Responsiveness */
@media (max-width: 768px) {
    #timeline::before {
        left: 1.5rem;
    }

    .timeline-row {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 3rem;
    }

    .timeline-col {
        width: 100%;
        padding: 0;
    }
    
    .timeline-col.left, .timeline-col.right {
        align-items: flex-start;
        padding-left: 4rem; /* Space for dot */
        padding-right: 1rem;
        text-align: left;
    }

    /* Hide the standalone date label on mobile, we'll show it in the card */
    .timeline-date-only {
        display: none;
    }

    .timeline-dot-wrapper {
        left: 1.5rem;
        top: 2rem; 
        transform: translate(-50%, 0);
    }

    .timeline-connector {
        width: 2.5rem;
        left: 1.5rem !important;
        right: auto !important;
        top: 2.6rem; /* Center with dot */
    }
    
    /* Disable 3D tilt on mobile for performance */
    .timeline-card, .grid-card {
        transform: none !important;
    }
    
    /* Show default cursor on mobile */
    html {
        cursor: auto;
    }
    
    .custom-cursor-none * {
        cursor: auto !important;
    }
}

/* Dark mode transitions */
.dark {
    color-scheme: dark;
}

* {
    transition-property: background-color, border-color, color, fill, stroke, box-shadow; /* Removed transform to avoid conflict with JS tilt */
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

.transition-all {
    transition-property: all;
}