/* ========================================
   CYBERSECURITY THEME - Professional Modern
   Clean, Minimal, SOC-Inspired Design
   ======================================== */

/* CSS Variables */
:root {
    /* Dark Charcoal Backgrounds (not pure black) */
    --bg-primary: #171720;
    --bg-secondary: #1e1e2a;
    --bg-card: #242433;
    --bg-card-hover: #2a2a3c;
    --bg-elevated: #2f2f42;
    
    /* Single Accent: Emerald Cyan */
    --accent: #10b981;
    --accent-light: #34d399;
    --accent-dim: rgba(16, 185, 129, 0.08);
    --accent-glow: rgba(16, 185, 129, 0.15);
    --accent-strong: rgba(16, 185, 129, 0.25);
    
    /* Text Hierarchy */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-dim: #475569;
    
    /* Borders */
    --border-color: rgba(148, 163, 184, 0.1);
    --border-subtle: rgba(148, 163, 184, 0.06);
    --border-glow: rgba(16, 185, 129, 0.25);
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Shadows - Subtle & Professional */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px var(--accent-glow);
    --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Subtle Grid Background Pattern - Very Low Opacity */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(16, 185, 129, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 185, 129, 0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
}

/* Subtle Gradient Overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    letter-spacing: -0.01em;
}

p {
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 0.01em;
}

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

a:hover {
    color: var(--accent-light);
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}

/* Scrollbar - Minimal & Clean */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-elevated);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dim);
}

/* ========================================
   NAVIGATION - Clean & Professional
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(23, 23, 32, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.875rem 0;
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo-bracket {
    color: var(--accent);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-radius: 6px;
    letter-spacing: 0.01em;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--accent-dim);
}

.nav-btn {
    background: var(--accent-dim);
    color: var(--accent);
    padding: 0.5rem 1.125rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-glow);
    transition: all var(--transition-fast);
    margin-left: 0.5rem;
}

.nav-btn:hover {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 16px var(--accent-glow);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    font-size: 1.25rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
}

/* ========================================
   BUTTONS - Subtle & Professional
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid var(--border-glow);
}

.btn-primary:hover {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 4px 16px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ========================================
   HERO SECTION - Clean & Impactful
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7rem var(--space-xl) var(--space-3xl);
    max-width: 1140px;
    margin: 0 auto;
    gap: var(--space-3xl);
}

.hero-content {
    flex: 1;
    max-width: 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-dim);
    padding: 0.4rem 0.875rem;
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--border-glow);
    font-weight: 500;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.9); }
}

.hero-title {
    margin-bottom: var(--space-sm);
}

.greeting {
    display: block;
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
    font-family: var(--font-sans);
    margin-bottom: 0.375rem;
    letter-spacing: 0.02em;
}

.name {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: var(--space-lg);
    min-height: 1.75rem;
    font-family: var(--font-mono);
}

.cursor {
    animation: blink 1s step-end infinite;
    color: var(--accent);
    font-weight: 300;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.05rem;
    line-height: 1.75;
    margin-bottom: var(--space-xl);
    color: var(--text-secondary);
    max-width: 520px;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

.hero-visual {
    flex-shrink: 0;
}

.profile-frame {
    position: relative;
    width: 300px;
    height: 300px;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 2;
    filter: saturate(0.9);
    transition: all var(--transition-normal);
}

.profile-img:hover {
    filter: saturate(1);
    border-color: var(--border-glow);
}

.frame-glow {
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 60%);
    border-radius: 18px;
    opacity: 0.5;
    filter: blur(24px);
    z-index: 1;
}

/* ========================================
   SECTIONS - Common Styles
   ======================================== */
.section-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 5rem var(--space-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
    letter-spacing: 0.02em;
    opacity: 0.8;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 0.875rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================================
   PROJECTS SECTION - Card Layout
   ======================================== */
.projects-section {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-glow), transparent 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.08);
    transform: translateY(-4px);
}

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

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
}

.project-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent);
}

.project-links {
    display: flex;
    gap: 0.5rem;
}

.project-link {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.project-link:hover {
    color: var(--accent);
    background: var(--accent-dim);
}

.project-title {
    font-size: 1.125rem;
    font-family: var(--font-mono);
    margin-bottom: 0.625rem;
    letter-spacing: -0.01em;
}

.project-description {
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.tech-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.25rem 0.625rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    letter-spacing: 0.02em;
}

/* ========================================
   SKILLS SECTION - Clean Grid
   ======================================== */
.skills-section {
    background: var(--bg-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 24px rgba(16, 185, 129, 0.06);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
}

.category-header i {
    font-size: 1.25rem;
    color: var(--accent);
}

.category-header h3 {
    font-size: 1rem;
    font-family: var(--font-mono);
    letter-spacing: -0.01em;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.skill-list li:last-child {
    border-bottom: none;
}

.skill-list li::before {
    content: '›';
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.9rem;
    opacity: 0.7;
}

.skill-name {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   ACHIEVEMENTS SECTION
   ======================================== */
.achievements-section {
    background: var(--bg-primary);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.achievement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: all var(--transition-normal);
}

.achievement-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 4px 24px rgba(16, 185, 129, 0.08);
}

.achievement-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.achievement-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent);
}

.achievement-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.3rem 0.75rem;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 100px;
    border: 1px solid var(--border-glow);
    letter-spacing: 0.03em;
    font-weight: 500;
}

.achievement-title {
    font-size: 1.1rem;
    font-family: var(--font-mono);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.achievement-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.achievement-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.achievement-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
    background: var(--bg-elevated);
    color: var(--text-muted);
    border-radius: 4px;
    font-weight: 500;
}

/* ========================================
   CERTIFICATIONS SECTION
   ======================================== */
.certifications-section {
    background: var(--bg-secondary);
}

.certs-scroll-wrapper {
    overflow: hidden;
    position: relative;
    padding: 1.25rem 0;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.certs-track {
    display: flex;
    gap: var(--space-lg);
    width: max-content;
    animation: scrollCerts 22s linear infinite;
}

.certs-track:hover {
    animation-play-state: paused;
}

@keyframes scrollCerts {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
    flex-shrink: 0;
    width: 230px;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}

.cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(16, 185, 129, 0.1);
}

.cert-icon {
    width: 52px;
    height: 52px;
    background: var(--accent-dim);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-size: 1.25rem;
    color: var(--accent);
}

.cert-title {
    font-size: 1rem;
    font-family: var(--font-mono);
    margin-bottom: 0.375rem;
    letter-spacing: -0.01em;
}

.cert-issuer {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.875rem;
}

.cert-status {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.3rem 0.875rem;
    background: rgba(251, 191, 36, 0.1);
    color: #fbbf24;
    border-radius: 100px;
    border: 1px solid rgba(251, 191, 36, 0.2);
    letter-spacing: 0.03em;
}

.cert-status.completed {
    background: var(--accent-dim);
    color: var(--accent);
    border-color: var(--border-glow);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-section {
    background: var(--bg-primary);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent);
    flex-shrink: 0;
}

.contact-details h4 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 0.125rem;
}

.contact-details a,
.contact-details p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: var(--space-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: border-color var(--transition-normal);
}

.contact-form:hover {
    border-color: var(--accent);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
    letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

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

.form-group input:hover,
.form-group textarea:hover {
    border-color: var(--accent);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group textarea {
    resize: none;
    overflow: hidden;
    min-height: 110px;
}

/* ========================================
   FOOTER - Minimal
   ======================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-2xl) var(--space-xl);
}

.footer-content {
    max-width: 1140px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.footer-text {
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

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

.copyright {
    font-size: 0.8rem;
    color: var(--text-dim);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
}

/* ========================================
   MODALS - Clean & Professional
   ======================================== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(23, 23, 32, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: var(--space-xl);
    overflow-y: auto;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    max-width: 560px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-16px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content .close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-size: 1.25rem;
    color: var(--text-muted);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-content .close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.modal-header {
    padding: var(--space-xl) var(--space-xl) var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
}

.modal-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent);
}

.modal-header h2 {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    letter-spacing: -0.01em;
}

.modal-body {
    padding: var(--space-lg) var(--space-xl) var(--space-xl);
}

.modal-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.modal-features {
    margin-bottom: var(--space-lg);
}

.modal-features h4 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.modal-features ul {
    list-style: none;
}

.modal-features li {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.375rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.modal-features li i {
    color: var(--accent);
    font-size: 0.75rem;
}

.modal-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: var(--space-lg);
}

.modal-tech span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.7rem;
    background: var(--bg-secondary);
    color: var(--accent);
    border-radius: 4px;
    border: 1px solid var(--border-glow);
}

.modal-links {
    display: flex;
    gap: var(--space-md);
}

/* ========================================
   TOAST NOTIFICATION
   ======================================== */
.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 3000;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    max-width: 360px;
    padding: 0.875rem 1.125rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    transform: translateY(150%);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast i {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.toast.toast-success {
    border-left-color: var(--accent);
}

.toast.toast-success i {
    color: var(--accent);
}

.toast.toast-error {
    border-left-color: #ef4444;
}

.toast.toast-error i {
    color: #ef4444;
}

@media (max-width: 480px) {
    .toast {
        left: var(--space-md);
        right: var(--space-md);
        bottom: var(--space-md);
        max-width: none;
    }
}

/* ========================================
   ANIMATIONS - Smooth & Subtle
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ========================================
   RESPONSIVE - Mobile First
   ======================================== */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column-reverse;
        justify-content: center;
        align-items: center;
        text-align: center;
        min-height: auto;
        padding: 6rem var(--space-lg) var(--space-2xl);
        gap: var(--space-2xl);
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-description {
        max-width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .stat {
        text-align: center;
    }
    
    .profile-frame {
        width: 240px;
        height: 240px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .contact-info {
        text-align: center;
    }
    
    .contact-item {
        justify-content: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: rgba(23, 23, 32, 0.85);
        backdrop-filter: blur(24px) saturate(150%);
        -webkit-backdrop-filter: blur(24px) saturate(150%);
        border-bottom: 1px solid var(--border-subtle);
        flex-direction: column;
        padding: var(--space-md) 0;
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .nav-link,
    .nav-btn {
        display: block;
        padding: 0.875rem;
        margin: 0;
    }
    
    .name {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .certs-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .section-container {
        padding: var(--space-3xl) var(--space-lg);
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: var(--space-md);
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.7rem;
        padding: 0.35rem 0.625rem;
    }
    
    .name {
        font-size: 1.875rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .profile-frame {
        width: 180px;
        height: 180px;
    }
    
    .modal-content {
        margin: var(--space-md);
        border-radius: 12px;
    }
    
    .modal-header,
    .modal-body {
        padding: var(--space-md);
    }
}

/* ========================================
   ACHIEVEMENT CERTIFICATE MODALS
   ======================================== */
.achievement-card {
    cursor: pointer;
}

.achievement-view-cert {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    font-size: 0.8rem;
    color: var(--accent);
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.achievement-card:hover .achievement-view-cert {
    opacity: 1;
}

.modal-cert {
    max-width: 680px;
}

.modal-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-top: 0.2rem;
}

.cert-image-wrapper {
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin-bottom: var(--space-lg);
    background: var(--bg-secondary);
    position: relative;
}

.cert-modal-img {
    width: 100%;
    display: block;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cert-modal-img:hover {
    transform: scale(1.03);
}