/* ==========================================================================
   PREMIUM PERSONAL PORTFOLIO STYLESHEET
   Built with Vanilla CSS, Flexbox, Grid, Custom Properties & Glassmorphism
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN SYSTEM & CSS VARIABLES
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette - Dark Mode (Default) */
    --bg-primary: #080b11;
    --bg-secondary: #0f1420;
    --bg-tertiary: #161c2e;
    
    --accent-blue: #00f0ff;
    --accent-purple: #7000ff;
    --accent-cyan: #00ffcc;
    --accent-pink: #ff007f;
    --accent-gradient: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    --accent-gradient-hover: linear-gradient(135deg, #33f3ff 0%, #8c26ff 100%);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Glassmorphism Tokens */
    --glass-bg: rgba(15, 20, 32, 0.65);
    --glass-nav-bg: rgba(8, 11, 17, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 240, 255, 0.3);
    --glass-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --neon-glow: 0 0 20px rgba(0, 240, 255, 0.35);

    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing & Layout */
    --container-max: 1200px;
    --nav-height: 80px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Overrides */
[data-theme="light"] {
    --bg-primary: #f4f7fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e2e8f0;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-nav-bg: rgba(244, 247, 252, 0.85);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-border-hover: rgba(112, 0, 255, 0.4);
    --glass-shadow: 0 10px 30px -10px rgba(31, 38, 135, 0.12);
    --neon-glow: 0 0 20px rgba(112, 0, 255, 0.2);
}

/* --------------------------------------------------------------------------
   2. GLOBAL RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Accessibility Focus & Skip Link */
:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 3px;
}

.skip-to-content {
    position: absolute;
    top: -100px;
    left: 1.5rem;
    background: var(--accent-gradient);
    color: #ffffff;
    padding: 0.6rem 1.2rem;
    z-index: 9999;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: top var(--transition-fast);
}

.skip-to-content:focus {
    top: 1rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Base Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    line-height: 1.2;
    font-weight: 700;
}

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

button, input, textarea {
    font-family: inherit;
    outline: none;
    border: none;
    background: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utility Containers */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
    z-index: 2;
}

/* Gradient Text Effect */
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Glassmorphism Card Style */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow), var(--neon-glow);
}

/* Section Header Component */
.section-header {
    margin-bottom: 3.5rem;
}
.section-subtitle {
    font-family: var(--font-heading);
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}
.section-title {
    font-size: 2.5rem;
    letter-spacing: -0.5px;
}
.text-center {
    text-align: center;
}
.header-line {
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    margin: 1rem auto 0;
    border-radius: var(--radius-full);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    z-index: 1;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 240, 255, 0.25);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 240, 255, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-3px);
    box-shadow: var(--neon-glow);
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
}

/* Button Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}
.ripple-ink {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    background: rgba(255, 255, 255, 0.4);
    animation: ripple-anim 0.6s linear;
    pointer-events: none;
}
@keyframes ripple-anim {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Canvas Background */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* Scroll Progress Bar */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--accent-gradient);
    width: 0%;
    z-index: 1000;
    transition: width 0.1s linear;
}

/* --------------------------------------------------------------------------
   3. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 999;
    background: var(--glass-nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
}

.glass-nav.scrolled {
    height: 70px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}
.logo-accent {
    color: var(--accent-blue);
}
.logo-dot {
    color: var(--accent-purple);
}

/* Menu items */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.4rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-normal);
    border-radius: var(--radius-full);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}
.theme-toggle:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: rotate(15deg);
}

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

/* Hamburger Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}
.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}
.hamburger.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   4. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--nav-height) + 2rem);
    padding-bottom: 4rem;
    position: relative;
    z-index: 2;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.2);
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-blue);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 240, 255, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}

.hero-title {
    font-size: 3.5rem;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    min-height: 2.4rem;
}

.typing-text {
    color: var(--accent-cyan);
}

.cursor {
    display: inline-block;
    background-color: var(--accent-cyan);
    margin-left: 2px;
    width: 3px;
    animation: blink 0.8s infinite;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 2.5rem;
}

.hero-socials {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.social-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}
.social-icon:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-4px);
    box-shadow: var(--neon-glow);
}

/* Avatar Frame & Glow */
.hero-avatar-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.avatar-glow-ring {
    position: absolute;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: var(--accent-gradient);
    filter: blur(40px);
    opacity: 0.4;
    animation: spinGlow 10s linear infinite;
}

@keyframes spinGlow {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.05); }
    100% { transform: rotate(360deg) scale(1); }
}

.avatar-card {
    position: relative;
    padding: 12px;
    border-radius: 50%;
    width: 300px;
    height: 300px;
}

.hero-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
}

.avatar-badge {
    position: absolute;
    bottom: 10px;
    right: -10px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: var(--glass-shadow);
}

/* --------------------------------------------------------------------------
   5. ABOUT ME SECTION
   -------------------------------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.5rem;
    align-items: center;
}

.about-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-heading {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    line-height: 1.4;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 1rem;
}

.about-interests {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 1.5rem 0 2rem;
}

.interest-pill {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

/* Stats Counter Grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.9rem;
}

.stat-card {
    padding: 1.25rem 1.25rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-blue);
    display: inline-block;
}

.stat-plus {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent-purple);
    margin-left: 2px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   6. SKILLS SECTION (Categorized Layout)
   -------------------------------------------------------------------------- */
.skills-category-container {
    display: flex;
    flex-direction: column;
    gap: 2.2rem;
}

.skill-category-block {
    padding: 2.2rem;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.skill-category-block:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 40px -10px rgba(0, 240, 255, 0.15);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin-bottom: 1.8rem;
    padding-bottom: 1.2rem;
    border-bottom: 1px solid var(--glass-border);
}

.category-title-wrapper {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.category-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--neon-glow);
}

.icon-programming {
    background: rgba(0, 240, 255, 0.12);
    border: 1px solid rgba(0, 240, 255, 0.3);
    color: var(--accent-blue);
}

.icon-frameworks {
    background: rgba(112, 0, 255, 0.12);
    border: 1px solid rgba(112, 0, 255, 0.3);
    color: var(--accent-purple);
}

.icon-cms {
    background: rgba(255, 0, 127, 0.12);
    border: 1px solid rgba(255, 0, 127, 0.3);
    color: var(--accent-pink);
}

.category-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.category-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.category-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.category-badge {
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 600;
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(0, 240, 255, 0.25);
    letter-spacing: 0.02em;
}

.badge-purple {
    background: rgba(112, 0, 255, 0.1);
    color: #b166ff;
    border-color: rgba(112, 0, 255, 0.25);
}

.badge-pink {
    background: rgba(255, 0, 127, 0.1);
    color: var(--accent-pink);
    border-color: rgba(255, 0, 127, 0.25);
}

.skills-subgrid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

.skill-card.glass-card-sm {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.25rem;
    transition: all var(--transition-normal);
}

.skill-card.glass-card-sm:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 10px 30px -8px rgba(0, 240, 255, 0.15);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.skill-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    flex-shrink: 0;
    transition: all var(--transition-normal);
}

.skill-card.glass-card-sm:hover .skill-icon {
    transform: scale(1.08);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--neon-glow);
}

.skill-img-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
}

.skill-info {
    flex: 1;
    display: flex;
    align-items: center;
}

.skill-name {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

/* --------------------------------------------------------------------------
   7. PROJECTS SECTION
   -------------------------------------------------------------------------- */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: 1.25rem;
}

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border-radius: 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.4);
}

.project-img-wrapper {
    position: relative;
    width: 100%;
    height: 165px;
    overflow: hidden;
    background: rgba(8, 12, 20, 0.9);
    border-bottom: 1px solid var(--glass-border);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 0.4rem;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-img {
    transform: scale(1.04);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 11, 17, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.overlay-btn {
    padding: 0.45rem 1.15rem;
    background: var(--accent-gradient);
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    transform: translateY(10px);
    transition: transform var(--transition-normal);
}

.project-card:hover .overlay-btn {
    transform: translateY(0);
}

.project-info {
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-cyan);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.project-title {
    font-size: 1.1rem;
    margin-bottom: 0.35rem;
    font-weight: 700;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.48;
    margin-bottom: 0.75rem;
    flex: 1;
}

.project-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.8rem;
}

.tech-tag {
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.project-links {
    display: flex;
    gap: 0.8rem;
}

/* --------------------------------------------------------------------------
   8. SERVICES SECTION
   -------------------------------------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.6rem 1.4rem;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 14px 30px -8px rgba(0, 0, 0, 0.4);
}

.service-icon-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    margin-bottom: 1.1rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover .service-icon-circle {
    transform: scale(1.06);
}

/* Service Card Themes matching reference design */
.service-theme-purple .service-icon-circle {
    background: linear-gradient(135deg, #9d4edd, #5a189a);
    box-shadow: 0 8px 20px rgba(157, 78, 221, 0.4);
}

.service-theme-purple .service-accent-line {
    background: linear-gradient(90deg, #9d4edd, #7b2cbf);
}

.service-theme-orange .service-icon-circle {
    background: linear-gradient(135deg, #ff5e62, #ff9966);
    box-shadow: 0 8px 20px rgba(255, 94, 98, 0.4);
}

.service-theme-orange .service-accent-line {
    background: linear-gradient(90deg, #ff5e62, #ff9966);
}

.service-theme-green .service-icon-circle {
    background: linear-gradient(135deg, #00b09b, #25d366);
    box-shadow: 0 8px 20px rgba(0, 176, 155, 0.4);
}

.service-theme-green .service-accent-line {
    background: linear-gradient(90deg, #00b09b, #25d366);
}

.service-theme-blue .service-icon-circle {
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    box-shadow: 0 8px 20px rgba(0, 198, 255, 0.4);
}

.service-theme-blue .service-accent-line {
    background: linear-gradient(90deg, #00c6ff, #0072ff);
}

.service-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    line-height: 1.3;
}

.service-accent-line {
    width: 28px;
    height: 3px;
    border-radius: 3px;
    margin-bottom: 0.85rem;
}

.service-description {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.55;
    margin-bottom: 0;
    flex: 1;
}

/* --------------------------------------------------------------------------
   9. EXPERIENCE SECTION (Reference Card UI Design)
   -------------------------------------------------------------------------- */
.experience-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.experience-card {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.25rem 1.6rem;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.experience-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.35);
}

.experience-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.experience-title {
    font-size: 1.18rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.experience-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.5;
    margin-bottom: 0.85rem;
}

.experience-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--glass-border);
}

.experience-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.2rem;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.meta-item svg {
    color: var(--accent-blue);
    flex-shrink: 0;
}

.experience-action {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.experience-action .arrow {
    transition: transform 0.25s ease;
}

.experience-duration {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
}

.experience-card:hover .experience-action {
    color: var(--accent-cyan);
}

.experience-card:hover .experience-action .arrow {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   10. CONTACT SECTION & FORM
   -------------------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info-heading {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info-sub {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-bottom: 2rem;
}

.info-item {
    padding: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.info-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    flex-shrink: 0;
}

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-val {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.contact-socials {
    display: flex;
    gap: 1rem;
}

.contact-socials a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.contact-socials a:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-3px);
}

/* Form Styles */
.contact-form {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
}

.form-textarea {
    resize: vertical;
}

.form-error {
    font-size: 0.78rem;
    color: #ff4d4d;
    display: none;
}

.form-group.error .form-input {
    border-color: #ff4d4d;
}

.form-group.error .form-error {
    display: block;
}

.form-submit-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   11. FOOTER & BACK TO TOP
   -------------------------------------------------------------------------- */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: 4rem 0 2rem;
    position: relative;
    z-index: 2;
}

.footer-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 3rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.footer-quick-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;

}

.footer-quick-links a {
    color: var(--text-secondary);
    font-weight: 500;

}

.footer-quick-links a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);

}

.copyright {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.footer-socials {
    display: flex;
    gap: 1.5rem;

}

.footer-socials a {
    color: var(--text-muted);
    font-size: 0.88rem;

}

.footer-socials a:hover {
    color: var(--text-primary);
}

/* Back to Top Floating Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: var(--glass-shadow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: var(--neon-glow);
}

.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-90deg);
}

.progress-ring-circle {
    stroke-dasharray: 125.6;
    stroke-dashoffset: 125.6;
    transition: stroke-dashoffset 0.1s linear;
}

/* --------------------------------------------------------------------------
   12. MODAL & TOAST NOTIFICATIONS
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 100%;
    max-width: 680px;
    padding: 2.5rem;
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--accent-blue);
}

.modal-img-container {
    width: 100%;
    height: 260px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 1.5rem;
    background: rgba(12, 16, 24, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-img-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 0.5rem;
}

.modal-details h3 {
    font-size: 1.6rem;
    margin-bottom: 0.8rem;
}

.modal-details p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
}

.modal-tech-stack {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 1.8rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
}

.resume-modal-content {
    max-width: 540px;
}

.modal-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.resume-preview-box {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.modal-divider {
    border: none;
    height: 1px;
    background: var(--glass-border);
    margin: 1rem 0;
}

.resume-highlights div {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

/* Toast Container & Cards */
#toast-container {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.toast {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--accent-blue);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    box-shadow: var(--glass-shadow), var(--neon-glow);
    animation: toastIn 0.3s ease forwards;
}

@keyframes toastIn {
    from { transform: translateX(-100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.toast-out {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(-100%); opacity: 0; }
}

/* --------------------------------------------------------------------------
   13. SCROLL REVEAL ANIMATIONS
   -------------------------------------------------------------------------- */
.reveal-up, .reveal-left, .reveal-right {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-up {
    transform: translateY(40px);
}
.reveal-left {
    transform: translateX(-40px);
}
.reveal-right {
    transform: translateX(40px);
}

.reveal-up.active, .reveal-left.active, .reveal-right.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* --------------------------------------------------------------------------
   14. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-title { font-size: 2.8rem; }
    .hero-subtitle { font-size: 1.5rem; }
    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
    .hero-badge { margin-left: auto; margin-right: auto; }
    .hero-description { margin-left: auto; margin-right: auto; }
    .hero-cta { justify-content: center; }
    .hero-socials { justify-content: center; }

    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: calc(100vh - var(--nav-height));
        background: var(--glass-nav-bg);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 2.5rem;
        transition: right var(--transition-normal);
        border-left: 1px solid var(--glass-border);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-menu.active {
        right: 0;
    }

    .timeline::before { left: 20px; }
    .timeline-item { width: 100%; padding-left: 3rem !important; padding-right: 0 !important; }
    .timeline-item:nth-child(even) { left: 0; }
    .timeline-dot { left: 12px !important; }

    .stats-grid { grid-template-columns: 1fr; }
    .avatar-card { width: 240px; height: 240px; }
    .avatar-glow-ring { width: 250px; height: 250px; }
    
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1.2rem; }
    .hero-cta { flex-direction: column; width: 100%; }
    .btn { width: 100%; }
    .projects-grid { grid-template-columns: 1fr; }
}