/* Global Styles */
:root {
    --primary-rgb: 6, 182, 212;
    --primary-color: rgb(var(--primary-rgb));
    --accent-color: #22d3ee;
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;

    --glass-bg: rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Dashboard Theme Overrides */
body.theme-dashboard {
    --bg-color: #05070a;
    --glass-bg: rgba(18, 22, 31, 0.9);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

body.theme-dashboard .animated-background {
    opacity: 0.1;
}

/* Remove strong blur for flat design in Dashboard */
body.theme-dashboard .glass {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* --- DYNAMIC BACKGROUND SYSTEM --- */
.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.blob {
    position: absolute;
    filter: blur(90px);
    opacity: 0.5;
    border-radius: 50%;
    animation: blob-float infinite ease-in-out alternate;
    mix-blend-mode: screen;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.4) 0%, rgba(59, 130, 246, 0.1) 70%, transparent 100%);
    animation-duration: 25s;
    animation-delay: 0s;
}

.blob-2 {
    bottom: -15%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, rgba(139, 92, 246, 0.1) 70%, transparent 100%);
    animation-duration: 32s;
    animation-delay: -5s;
    animation-direction: reverse;
}

.blob-3 {
    top: 30%;
    left: 50%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.25) 0%, rgba(6, 182, 212, 0.1) 70%, transparent 100%);
    animation-duration: 28s;
    animation-delay: -12s;
}

@keyframes blob-float {
    0% { transform: translate(0, 0) scale(1) rotate(0deg); }
    33% { transform: translate(4vw, -6vh) scale(1.05) rotate(10deg); }
    66% { transform: translate(-3vw, 4vh) scale(0.95) rotate(-5deg); }
    100% { transform: translate(2vw, 2vh) scale(1.1) rotate(5deg); }
}

/* Glassmorphism Utility */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.project-card,
.skill-group,
.timeline-item-content {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

/* Premium Reveal Glow on Hover */
.project-card::before,
.skill-group::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    transform: skewX(-20deg);
    transition: 0.7s;
    pointer-events: none;
    z-index: 20;
}

.project-card:hover::before,
.skill-group:hover::before {
    left: 150%;
}

.project-card:hover,
.skill-group:hover,
.timeline-item-content:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 20px 40px -10px rgba(6, 182, 212, 0.25), 
                0 0 20px rgba(6, 182, 212, 0.1) inset;
    background: rgba(30, 41, 59, 0.8);
}

.project-card:hover h4,
.skill-group:hover h3 {
    color: var(--accent-color);
    text-shadow: 0 0 12px rgba(34, 211, 238, 0.4);
}

/* Image preview scaling on hover for project cards */
.project-card:hover .preview-bg {
    transform: scale(1.1);
}

/* Timeline/Scrollbar Styles */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #0f172a;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #06b6d4, #3b82f6);
    border-radius: 5px;
    border: 2px solid #0f172a;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #22d3ee, #60a5fa);
}

html {
    scroll-behavior: smooth;
}

/* Timeline Items */
.timeline-item {
    position: relative;
    padding-bottom: 3.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 5px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), rgba(6, 182, 212, 0.1));
    z-index: 5;
}

.timeline-dot {
    position: absolute;
    left: -24px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent-color);
    z-index: 10;
    border: 2px solid var(--bg-color);
    box-shadow: 0 0 12px var(--primary-color), 0 0 0 4px rgba(6, 182, 212, 0.2);
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.3);
    box-shadow: 0 0 20px var(--primary-color), 0 0 0 6px rgba(6, 182, 212, 0.3);
    background-color: #fff;
}

@media (min-width: 640px) {
    .timeline-item::before {
        left: -28px;
    }

    .timeline-dot {
        left: -33px;
    }
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

.floating {
    animation: float 6s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 15px rgba(34, 211, 238, 0.5); }
    50% { opacity: 0.8; transform: scale(1.05); box-shadow: 0 0 25px rgba(34, 211, 238, 0.8); }
}

.pulse-glow {
    animation: pulse-glow 3s infinite;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

/* Reveal Animations (Scroll) */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
    will-change: opacity, transform;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    transform: translateX(-40px);
}
.reveal-right {
    transform: translateX(40px);
}
.reveal-scale {
    transform: scale(0.9);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* Text Gradient Animation */
.text-gradient-animate {
    background-size: 200% auto;
    animation: gradientText 4s linear infinite;
}

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

.content-section {
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.content-section:last-child {
    border-bottom: none;
}

.gallery-image {
    border-radius: 0.75rem;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    object-fit: cover;
    background-color: rgba(30, 41, 59, 0.5);
    width: 100%;
    height: auto;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.gallery-image:hover {
    transform: scale(1.03);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}