/* ==========================================================================
   PREMIUM AI ARCHITECT DESIGN SYSTEM - RESET & GLOBALS
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --bg-primary: #07090e;         /* Deepest Cosmic Charcoal */
    --bg-secondary: #0d111b;       /* Sleek Slate Panel */
    --accent-primary: #6366f1;     /* High-End Indigo Glow */
    --accent-secondary: #06b6d4;   /* Cyber-Tech Cyan */
    --accent-emerald: #10b981;     /* Metric/Success Green */
    
    /* Text Palette */
    --text-primary: #f8fafc;       /* Near White */
    --text-secondary: #94a3b8;     /* Slate Muted */
    --text-muted: #64748b;         /* Dark Slate Muted */

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Glassmorphism Defaults */
    --glass-bg: rgba(13, 17, 27, 0.45);
    --glass-border: rgba(255, 255, 255, 0.07);
    --glass-border-glow: rgba(99, 102, 241, 0.25);
    --glass-blur: blur(16px);
    
    /* Shadows & Glows */
    --glow-shadow: 0 0 30px rgba(99, 102, 241, 0.12);
    --glow-hover: 0 0 40px rgba(6, 182, 212, 0.18);
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-quick: all 0.2s ease;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
    scroll-behavior: auto;
    line-height: 1.6;
    
    /* Tech Blueprint Subtle Grid Overlay */
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center;
}

/* Scrollbar refinement */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.15);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.3);
}

/* ==========================================================================
   WEBGL CANVAS BACKGROUND
   ========================================================================== */
#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    display: block;
    pointer-events: none;
}

/* DOM Overlay Layout */
#dom-overlay {
    position: relative;
    width: 100%;
    z-index: 10;
    pointer-events: none;
}

#dom-overlay h1,
#dom-overlay h2,
#dom-overlay h3,
#dom-overlay h4,
#dom-overlay p,
#dom-overlay span,
#dom-overlay a,
#dom-overlay button,
#dom-overlay input,
#dom-overlay textarea,
#dom-overlay label,
#dom-overlay .skill-chip {
    pointer-events: auto;
}

/* ==========================================================================
   PANEL SECTIONS (GSAP Vertical Scroller)
   ========================================================================== */
.panel {
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 6rem 2rem;
    position: relative;
}

.content {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

/* Typography Overrides */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    letter-spacing: -0.01em;
}

/* Title Gradient effects */
.glow-text {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #f8fafc 40%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.glow-text::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
    margin-top: 0.75rem;
}

/* ==========================================================================
   HERO PANEL
   ========================================================================== */
.hero-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-section .content {
    align-items: center;
    text-align: center;
}

.hero-section .content h1 {
    font-size: 5.5rem;
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    background: linear-gradient(to right, #ffffff, #c7d2fe, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

.hero-section .content h1::after {
    display: none;
}

.subtitle {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--accent-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 2rem;
    position: relative;
    padding-left: 1.5rem;
}

.subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: var(--accent-secondary);
    box-shadow: 0 0 10px var(--accent-secondary);
    border-radius: 50%;
}

.hero-thesis {
    font-size: 1.35rem;
    max-width: 680px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 3.5rem !important;
}

/* Scroll indicator micro-animation */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    pointer-events: none;
}

.mouse-scroller {
    width: 20px;
    height: 32px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse-scroller::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 6px;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--accent-secondary);
    border-radius: 2px;
    animation: scrollWheel 2s infinite ease-in-out;
}

@keyframes scrollWheel {
    0% { top: 6px; opacity: 1; }
    50% { top: 16px; opacity: 0; }
    100% { top: 6px; opacity: 1; }
}

/* ==========================================================================
   ABOUT PANEL
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    width: 100%;
    margin-top: 2rem;
}

.about-prose {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-prose br {
    margin-bottom: 1.5rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-box {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.highlight-box:hover {
    border-color: var(--glass-border-glow);
    transform: translateY(-2px);
    box-shadow: var(--glow-shadow);
}

.highlight-box h4 {
    color: var(--accent-secondary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.highlight-box p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   GLASSMORPHISM & GENERAL CARDS
   ========================================================================== */
.glassmorphism {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   EDUCATION PANEL
   ========================================================================== */
.education-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    width: 100%;
    margin-top: 2.5rem;
}

.education-card {
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
}

.education-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-glow);
    box-shadow: var(--glow-shadow);
}

.education-card h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.education-card .academy-name {
    color: var(--accent-secondary);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    display: block;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.education-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   SKILLS & TECH STACK PANEL (RESTRUCTURED)
   ========================================================================== */
.skills-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    width: 100%;
    margin-top: 3rem;
}

.skills-group {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.skills-group:hover {
    border-color: var(--glass-border-glow);
    box-shadow: var(--glow-shadow);
}

.skills-group h3 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 1.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skills-group h3::after {
    content: '';
    width: 8px;
    height: 8px;
    background-color: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-primary);
}

.skills-group:nth-child(2) h3::after {
    background-color: var(--accent-secondary);
    box-shadow: 0 0 8px var(--accent-secondary);
}

.skills-group:nth-child(3) h3::after {
    background-color: var(--accent-emerald);
    box-shadow: 0 0 8px var(--accent-emerald);
}

.skills-flex-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-chip {
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: default;
    transition: var(--transition-quick);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-chip::before {
    content: '';
    width: 4px;
    height: 4px;
    background-color: var(--text-muted);
    border-radius: 50%;
    transition: var(--transition-quick);
}

.skill-chip:hover {
    background: rgba(99, 102, 241, 0.06);
    border-color: rgba(99, 102, 241, 0.4);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.skill-chip:hover::before {
    background-color: var(--accent-primary);
    box-shadow: 0 0 6px var(--accent-primary);
}

/* ==========================================================================
   HIGH-TIER PROJECTS PANEL
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    width: 100%;
    margin-top: 3rem;
}

.projects-section a {
    border-bottom: none;
    padding-bottom: 0;
    width: 100%;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-secondary);
    box-shadow: var(--glow-hover);
}

.project-meta {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.project-card h3 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.project-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Architectural Highlights list */
.project-highlights-list {
    list-style: none;
    margin-bottom: 1.75rem;
    padding-left: 0;
}

.project-highlights-list li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.25rem;
}

.project-highlights-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

/* Compact Tech Badges */
.project-tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto; /* Push tags to the bottom */
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-badge {
    padding: 0.35rem 0.8rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Key Impact Banner */
.project-impact {
    margin-top: 1rem;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.15);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--accent-emerald);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-impact::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--accent-emerald);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent-emerald);
}

/* ==========================================================================
   EXPERIENCE PANEL (TIMELINE REFINEMENTS)
   ========================================================================== */
.experience-section .content {
    max-width: 900px;
}

.timeline {
    width: 100%;
    margin-top: 3rem;
    border-left: 2px dashed rgba(99, 102, 241, 0.25);
    padding-left: 3rem;
    position: relative;
}

.timeline-item {
    margin-bottom: 3.5rem;
    position: relative;
    transition: var(--transition-smooth);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

/* Custom interactive bullet nodes */
.timeline-item::before {
    content: '';
    position: absolute;
    left: -3.55rem;
    top: 0.3rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--accent-primary);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
    z-index: 2;
    transition: var(--transition-smooth);
}

.timeline-item:hover::before {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 15px var(--accent-secondary);
    transform: scale(1.25);
}

.timeline-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.timeline-card:hover {
    border-color: var(--glass-border-glow);
    box-shadow: var(--glow-shadow);
    transform: translateX(5px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-header h4 {
    font-size: 1.35rem;
    color: var(--text-primary);
}

.timeline-header span {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--accent-secondary);
    font-weight: 500;
}

.timeline-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   CONTACT FORM & FOOTER
   ========================================================================== */
.contact-section .content {
    align-items: center;
    text-align: center;
}

.contact-form {
    width: 100%;
    max-width: 580px;
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 3rem;
    text-align: left;
}

.form-group {
    width: 100%;
    position: relative;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 1.1rem 1.4rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition-smooth);
    box-sizing: border-box;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
    background: rgba(99, 102, 241, 0.03);
    border-color: rgba(99, 102, 241, 0.6);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.25);
}

.contact-form textarea {
    resize: vertical;
    min-height: 140px;
}

.submit-btn {
    margin-top: 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.4);
    color: #a5b4fc;
    padding: 1.1rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.submit-btn:hover {
    background: var(--accent-primary);
    color: var(--text-primary);
    border-color: var(--accent-primary);
    box-shadow: var(--glow-shadow);
    transform: translateY(-2px);
}

/* Social links and signature */
.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 4rem;
    justify-content: center;
}

.social-links a {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.02);
    transition: var(--transition-smooth);
}

.social-links a:hover {
    color: var(--accent-secondary);
    border-color: var(--accent-secondary);
    transform: translateY(-4px) scale(1.05);
    background: rgba(6, 182, 212, 0.05);
    box-shadow: var(--glow-hover);
}

.footer-sig {
    margin-top: 5rem;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* ==========================================================================
   RESPONSIVE LAYOUT RESPONSIVE INTEGRITY
   ========================================================================== */
@media (max-width: 1024px) {
    .skills-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    body {
        background-size: 20px 20px; /* Denser grid on mobile */
    }
    
    .panel {
        padding: 5rem 1.5rem;
    }

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

    .glow-text {
        font-size: 2.75rem;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .glow-text::after {
        margin: 0.75rem auto 0 auto;
    }

    .hero-section .content h1 {
        font-size: 3.75rem;
    }

    .hero-thesis {
        font-size: 1.15rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: left;
    }
    
    .about-highlights {
        width: 100%;
    }

    .skills-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .projects-grid,
    .education-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline {
        padding-left: 2rem;
    }

    .timeline-item::before {
        left: -2.55rem;
    }

    .timeline-card {
        padding: 1.5rem;
    }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .contact-form {
        padding: 2rem 1.5rem;
    }
}