/* 
    Liquid Glass Premium Style
    Theme: Adaptive Light/Dark
*/

:root {
    /* Color Palette */
    --primary: #4F46E5;
    --primary-light: #818CF8;
    --secondary: #06B6D4;
    --accent: #F43F5E;
    
    /* Background Gradients */
    --bg-color: #F8FAFC;
    --bg-grad-1: rgba(79, 70, 229, 0.2);  /* Primary soft */
    --bg-grad-2: rgba(6, 182, 212, 0.2);  /* Secondary soft */
    --bg-grad-3: rgba(244, 63, 94, 0.2);  /* Accent soft */
    
    /* Surface Colors */
    --surface-glass: rgba(255, 255, 255, 0.6);
    --surface-border: rgba(255, 255, 255, 0.4);
    --surface-shadow: rgba(0, 0, 0, 0.05);
    
    /* Text Colors */
    --text-main: #0F172A;
    --text-muted: #475569;
    --text-inverse: #FFFFFF;
    
    /* Typography */
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Transitions & Specs */
    --smooth-curve: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 600ms var(--smooth-curve);
    --transition-norm: 300ms var(--smooth-curve);
    
    --blur-strong: blur(24px);
    --border-radius: 20px;
    --container-max: 1100px;
}

[data-theme="dark"] {
    --bg-color: #0B0F19;
    --bg-grad-1: rgba(79, 70, 229, 0.35);  
    --bg-grad-2: rgba(6, 182, 212, 0.35);  
    --bg-grad-3: rgba(244, 63, 94, 0.35);  
    
    --surface-glass: rgba(15, 23, 42, 0.6);
    --surface-border: rgba(255, 255, 255, 0.08);
    --surface-shadow: rgba(0, 0, 0, 0.3);
    
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-norm);
}

/* Background Animated Blobs */
.bg-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    filter: blur(80px); /* Massive blur for fluid look */
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    animation: float 20s infinite alternate ease-in-out;
    opacity: 0.8;
}

.shape-1 {
    width: 60vmin;
    height: 60vmin;
    background: var(--bg-grad-1);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 50vmin;
    height: 50vmin;
    background: var(--bg-grad-2);
    bottom: -15%;
    right: -10%;
    animation-delay: -5s;
}

.shape-3 {
    width: 45vmin;
    height: 45vmin;
    background: var(--bg-grad-3);
    top: 40%;
    left: 40%;
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1) rotate(0deg); }
    50% { transform: translate(5%, 10%) scale(1.1) rotate(45deg); }
    100% { transform: translate(-5%, 5%) scale(0.9) rotate(-15deg); }
}

/* Glassmorphism Classes */
.glass-panel {
    background: var(--surface-glass);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    border: 1px solid var(--surface-border);
    transition: all var(--transition-norm);
}

.glass-card {
    background: var(--surface-glass);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: 0 10px 40px var(--surface-shadow);
    transition: transform var(--transition-norm), box-shadow var(--transition-norm), background var(--transition-norm);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--surface-shadow);
    background: rgba(255, 255, 255, 0.8);
}
[data-theme="dark"] .glass-card:hover { background: rgba(30, 41, 59, 0.8); }

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2.5rem;
}

.text-center { text-align: center; }

.accent-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
[data-theme="dark"] .accent-gradient {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.accent-text { color: var(--primary); }
[data-theme="dark"] .accent-text { color: var(--primary-light); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-norm);
    border: none;
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.primary-btn:hover {
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
    transform: translateY(-2px);
    color: white;
}

.secondary-btn {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--text-main);
}

.secondary-btn:hover {
    background: var(--text-main);
    color: var(--bg-color);
}

/* Nav */
.main-nav {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: var(--container-max);
    border-radius: 50px;
    z-index: 100;
    padding: 0.75rem 1.5rem;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    position: relative;
}

.nav-links a:hover {
    color: var(--text-main);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    transition: width var(--transition-norm);
}

.nav-links a:hover::after { width: 100%; }

.icon-button {
    background: transparent;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background var(--transition-norm);
}

.icon-button:hover { background: var(--surface-border); }

.sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: block; }

/* Layout Wrappers */
main {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

section { padding: 8rem 0; min-height: 80vh; display: flex; flex-direction: column; justify-content: center;}

/* Hero */
.hero {
    margin-top: 5rem;
    align-items: flex-start;
}

.hero-content {
    max-width: 800px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 2rem;
}
[data-theme="dark"] .badge { color: var(--primary-light); }

.glass-badge {
    background: var(--surface-glass);
    border: 1px solid var(--surface-border);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

/* About & Skills */
.about-grid { display: flex; flex-direction: column; gap: 2rem; }

.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.skill-tag {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--surface-border);
}

/* Projects Grid */
.projects-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    flex: 1 1 calc(33.333% - 1.34rem);
    min-width: 320px;
    max-width: 400px;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-icon { width: 32px; height: 32px; }

.project-links { display: flex; gap: 1rem; color: var(--text-muted); }
.project-links a:hover { color: var(--primary); }

.project-title { font-size: 1.5rem; }

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    gap: 0.75rem;
    font-size: 0.8rem;
    font-family: 'Space Grotesk', monospace;
    color: var(--primary);
}
[data-theme="dark"] .project-tech { color: var(--primary-light); }

/* Contact & Footer */
.contact-card {
    max-width: 700px;
    margin: 0 auto;
    width: 100%;
}

.contact-text {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.contact-methods {
    display: flex;
    justify-content: center;
}

.footer {
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    color: var(--text-muted);
    border-top: 1px solid var(--surface-border);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}
.social-links a:hover { color: var(--primary); transform: translateY(-3px); display: inline-block; transition: all 0.2s; }

/* Animations - Intersection Observer classes */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--smooth-curve), transform 0.8s var(--smooth-curve);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title { font-size: 3rem; }
    .nav-links { display: none; }
    .hero-cta { flex-direction: column; }
    .btn { width: 100%; }
    .main-nav { top: 1rem; width: 95%; }
}