/* ==========================================================================
   Mohammad Dzikri Raihan - Design System & Custom Styling
   ========================================================================== */

/* Design Tokens & Variables - Light Theme (Default) */
:root {
    --bg-primary: #ffffff;
    /* Pure white */
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    /* Rich dark slate for text */
    --text-secondary: #64748b;
    /* Softer slate for descriptions */
    --accent: #1e293b;
    /* Indigo dark grey for primary components */
    --accent-hover: #0f172a;
    --accent-light: #f8fafc;
    --accent-gradient: linear-gradient(135deg, #1e293b 0%, #475569 100%);
    --gradient-accent: linear-gradient(135deg, #1e293b 0%, #059669 100%);
    --gradient-accent-vibrant: linear-gradient(135deg, #059669 0%, #10b981 50%, #34d399 100%);
    --card-bg: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.35);
    --glass-border: rgba(255, 255, 255, 0.7);
    --border-color: rgba(15, 23, 42, 0.06);
    --huge-text-color: rgba(15, 23, 42, 0.07);
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 8px 32px rgba(31, 38, 135, 0.1);
    --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.08);
    --radius-pill: 50px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --font-primary: 'Outfit', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-theme: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
}

/* Dark Theme Variables */
.dark-theme {
    --bg-primary: #0b0f19;
    /* Deep slate black-blue */
    --bg-secondary: #111827;
    /* Dark grey */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #f8fafc;
    /* White accent in dark mode */
    --accent-hover: #ffffff;
    --accent-light: #1e293b;
    --accent-gradient: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 100%);
    --gradient-accent: linear-gradient(135deg, #f8fafc 0%, #6ee7b7 100%);
    --gradient-accent-vibrant: linear-gradient(135deg, #6ee7b7 0%, #34d399 50%, #a7f3d0 100%);
    --card-bg: #111827;
    --glass-bg: rgba(11, 15, 25, 0.35);
    --glass-border: rgba(255, 255, 255, 0.15);
    --border-color: rgba(248, 250, 252, 0.08);
    --huge-text-color: rgba(248, 250, 252, 0.06);
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.45);
}

/* Enable smooth transitions for elements on theme change */
body,
.navbar,
.project-card,
.blog-card,
.cert-card,
.footer,
.btn,
.tech-tag,
.form-group input,
.form-group textarea,
.contact-modal-content,
.navbar-container {
    transition: var(--transition-theme);
}

/* Global resets & Scroll settings */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

/* Navigation - Floating Capsule */
.navbar-container {
    position: fixed;
    top: 24px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 1000;
    padding: 0 20px;
    pointer-events: none;
    /* Let clicks pass through outer container */
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 8px 12px;
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-md);
    max-width: 600px;
    width: 100%;
    pointer-events: auto;
    /* Re-enable pointer events for actual nav */
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 6px 12px;
    transform: scale(0.96);
    box-shadow: var(--shadow-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    margin-left: 6px;
}

.nav-avatar-img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(15, 23, 42, 0.1);
    transition: var(--transition-smooth);
}

.nav-avatar-img:hover {
    transform: rotate(10deg) scale(1.1);
}

.nav-logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.nav-brand-text {
    font-size: 1.1rem;
    font-weight: 700;
    background: var(--gradient-accent-vibrant);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.lang-toggle-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    margin-left: 8px;
    transition: var(--transition-smooth);
}

.lang-toggle-btn i {
    color: var(--text-secondary);
}

.lang-toggle-btn:hover {
    background-color: var(--card-bg);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: rgba(15, 23, 42, 0.04);
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* Contact Button inside Nav */
#nav-contact-btn {
    background-color: var(--accent);
    color: #ffffff;
}

#nav-contact-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.dark-theme #nav-contact-btn {
    color: var(--bg-primary);
}

.dark-theme .nav-link:hover {
    background-color: rgba(248, 250, 252, 0.08);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 180px 20px 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

#hero {
    position: relative;
    overflow: hidden;
}

#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    max-width: 850px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 24px;
    animation: float 6s ease-in-out infinite;
}

.hero-avatar-wrapper {
    position: relative;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: linear-gradient(135deg, #059669, #10b981, #34d399, #6ee7b7);
    padding: 4px;
    margin-bottom: 24px;
    animation: float 6s ease-in-out infinite;
    animation-delay: -3s;
    box-shadow: 0 8px 32px rgba(5, 150, 105, 0.15);
    transition: var(--transition-smooth);
}

.dark-theme .hero-avatar-wrapper {
    box-shadow: 0 0 40px rgba(5, 150, 105, 0.3), 0 0 80px rgba(16, 185, 129, 0.15);
}

.hero-avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-primary);
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, #1e293b 10%, #059669 60%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark-theme .gradient-text {
    background: linear-gradient(135deg, #f8fafc 10%, #6ee7b7 60%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 720px;
    line-height: 1.6;
    margin-bottom: 36px;
    font-weight: 400;
}

.hero-tech-stack {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.tech-tag {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.tech-tag i {
    color: var(--text-primary);
}

/* Sections Global */
.section {
    padding: 100px 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

/* Projects Grid - 1 Row, 4 Columns */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(15, 23, 42, 0.03);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(15, 23, 42, 0.06);
}

.project-img-wrapper {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background-color: var(--accent-light);
    border-bottom: 1px solid var(--border-color);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.project-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-name {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.tag {
    background-color: var(--accent-light);
    color: var(--text-secondary);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-pill);
}

.project-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Custom Buttons styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(30, 41, 59, 0.15);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 41, 59, 0.25);
}

.dark-theme .btn-primary {
    color: var(--bg-primary);
}

.btn-outline {
    background-color: transparent;
    border: 1.5px solid var(--accent);
    color: var(--accent);
}

.btn-outline:hover {
    background-color: var(--accent);
    color: #ffffff;
}

.dark-theme .btn-outline:hover {
    color: var(--bg-primary);
}

.btn-glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    padding: 16px 36px;
    font-size: 1.05rem;
    box-shadow: var(--shadow-md);
}

.btn-glass:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.4);
    transform: scale(1.03);
    box-shadow: var(--shadow-lg);
}

.dark-theme .btn-glass {
    color: var(--text-primary);
}

.btn-block {
    width: 100%;
}

.btn i {
    margin-right: 6px;
}

/* Blog Section */
.blog-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.blog-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(15, 23, 42, 0.03);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.blog-text {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.blog-text .btn {
    margin-top: auto;
    align-self: flex-start;
}

.blog-card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.4;
}

.blog-card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.blog-img-wrapper {
    width: 100%;
    order: -1;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.blog-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-img {
    transform: scale(1.05);
}

/* Certificate Marquee Section */
.certificate-section {
    overflow: hidden; /* Ensure marquee doesn't cause horizontal scroll on page */
}

.certificates-marquee-wrapper {
    width: 100%;
    overflow: hidden;
    margin-bottom: 80px;
    padding: 20px 0; /* Room for shadow and hover scale */
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.certificates-marquee-track {
    display: flex;
    gap: 32px;
    width: max-content;
    animation: marquee 35s linear infinite;
}

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

@keyframes marquee {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        /* Assuming 4 certificates + 4 gap (4 * (320+32) = 1408px) */
        transform: translate3d(calc(-50% - 16px), 0, 0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .certificates-marquee-track {
        animation-play-state: paused;
    }
    
    .cert-card, .cert-card:hover {
        transform: none !important;
        transition: none !important;
    }
}

.cert-card {
    flex: 0 0 auto;
    width: 320px;
    aspect-ratio: 4 / 3;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
    cursor: pointer;
    overflow: hidden;
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateX(var(--rotateX, 0deg)) rotateY(var(--rotateY, 0deg)) scale(1);
    transition: transform 0.1s ease-out, border-color 0.3s ease, box-shadow 0.3s ease;
}

.dark-theme .cert-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.cert-card:hover {
    transform: perspective(1000px) rotateX(var(--rotateX, 0deg)) rotateY(var(--rotateY, 0deg)) scale(1.05);
    z-index: 10;
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.2);
}

/* Reflection / Spotlight on hover */
.cert-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 2;
    background: radial-gradient(
        800px circle at var(--mouseX, 50%) var(--mouseY, 50%), 
        rgba(255, 255, 255, 0.15), 
        transparent 40%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.cert-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px; /* slightly smaller than 16px to fit inside border */
    z-index: 1;
    position: relative;
}

.cert-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-smooth);
    backdrop-filter: blur(4px);
    z-index: 3;
    border-radius: 15px;
}

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

.cert-view-text {
    color: #ffffff;
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateY(10px);
    transition: var(--transition-smooth);
}

.cert-card:hover .cert-view-text {
    transform: translateY(0);
}

/* Contact Trigger Container with Dot Grid Background */
.contact-trigger-wrapper {
    position: relative;
    padding: 100px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-actions-vertical {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: relative;
    z-index: 10;
}

.btn-pill {
    border-radius: 50px;
    padding: 14px 40px;
    font-weight: 600;
}

.social-pill {
    display: flex;
    align-items: center;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 8px 16px;
    box-shadow: var(--shadow-sm);
    gap: 16px;
    transition: var(--transition-smooth);
}

.social-pill:hover {
    box-shadow: var(--shadow-md);
}

.social-pill-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 6px 12px;
    border-radius: 50px;
    transition: var(--transition-smooth);
}

.social-pill-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

.social-pill-divider {
    width: 1px;
    height: 20px;
    background-color: var(--border-color);
}

.contact-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

/* Footer styling */
.footer {
    display: flex;
    flex-direction: column;
    padding: 80px 24px 40px 24px;
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    position: relative;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
}

.footer-brand-title {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.footer-brand-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 280px;
    line-height: 1.5;
}

.footer-brand-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 8px;
}

.footer-icons-inline {
    display: flex;
    gap: 12px;
}

.footer-icon-link-alt {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.footer-icon-link-alt:hover {
    color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
    border-radius: var(--radius-pill);
    align-self: flex-start;
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
}

.footer-links-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-col ul li a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    gap: 12px;
}

.footer-links-col ul a {
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

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

.footer-divider {
    border: none;
    height: 1px;
    background-color: rgba(15, 23, 42, 0.1);
    margin-bottom: 30px;
    position: relative;
    z-index: 10;
}

.dark-theme .footer-divider {
    background-color: rgba(255, 255, 255, 0.1);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 10;
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.theme-toggle-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.huge-footer-text {
    font-size: 12vw;
    font-weight: 800;
    text-transform: uppercase;
    text-align: center;
    color: var(--huge-text-color);
    margin-top: 20px;
    letter-spacing: -0.04em;
    user-select: none;
    line-height: 1;
    pointer-events: none;
    transition: var(--transition-smooth);
}

/* Modal Windows Global */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.4);
    z-index: 2000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.close-modal {
    position: absolute;
    top: 24px;
    right: 24px;
    color: #ffffff;
    font-size: 2.5rem;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.close-modal:hover {
    transform: rotate(90deg);
}

/* Lightbox specific modal */
.modal-content-wrapper {
    max-width: 900px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: zoomIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Toast Notification */
.toast {
    visibility: hidden;
    min-width: 300px;
    position: fixed;
    z-index: 3000;
    right: 32px;
    bottom: 32px;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.toast-detailed {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 18px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.toast-content {
    display: flex;
    flex-direction: column;
    text-align: left;
    gap: 6px;
}

.toast-title {
    font-weight: 600;
    font-size: 0.95rem;
}

.toast-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

/* Contact specific modal */
.contact-modal-content {
    background-color: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
    width: 100%;
    max-width: 550px;
    box-shadow: var(--shadow-lg);
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-modal-content .close-modal {
    color: var(--text-secondary);
    top: 20px;
    right: 24px;
    font-size: 2rem;
}

.contact-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.modal-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--border-color);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--text-primary);
    background-color: var(--bg-secondary);
    box-shadow: 0 0 0 4px rgba(30, 41, 59, 0.05);
}

/* Animations keyframes */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-8px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }

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

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================================================
   FAQ Section Styles
   ========================================================================== */
.faq-section {
    padding-top: 60px;
    padding-bottom: 60px;
}

.faq-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.faq-header-col {
    position: sticky;
    top: 100px;
    align-self: start;
}

.faq-main-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.faq-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.5;
}

.faq-subtitle a {
    color: var(--text-primary);
    text-decoration: underline;
    text-decoration-color: var(--border-color);
    text-underline-offset: 4px;
    transition: var(--transition-smooth);
}

.faq-subtitle a:hover {
    text-decoration-color: var(--text-primary);
}

.faq-category {
    margin-bottom: 40px;
}

.faq-category-title {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.accordion-item {
    border-top: 1px solid var(--border-color);
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-header {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 24px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    transition: var(--transition-smooth);
}

.accordion-header:hover {
    color: var(--text-secondary);
}

.accordion-header::after {
    content: '\002B'; /* Plus icon */
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 300;
    transition: transform 0.3s ease;
    margin-left: 20px;
}

.accordion-item.active .accordion-header::after {
    transform: rotate(45deg);
}

.accordion-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0, 1, 0, 1);
}

.accordion-panel p {
    padding-bottom: 24px;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

@media (max-width: 900px) {
    .faq-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .faq-header-col {
        position: relative;
        top: 0;
    }
    
    .faq-main-title {
        font-size: 1.8rem;
    }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 900px) {
    .hero-title {
        font-size: 3rem;
    }

    .certificates-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
}

@media (max-width: 600px) {
    .navbar-container {
        padding: 0 12px;
    }

    .navbar {
        width: 100%;
        overflow-x: auto;
        -ms-overflow-style: none; /* IE and Edge */
        scrollbar-width: none; /* Firefox */
        padding: 6px 12px;
    }
    
    .navbar::-webkit-scrollbar {
        display: none;
    }

    .nav-links {
        gap: 4px;
        white-space: nowrap;
    }

    .nav-link {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
    
    .lang-toggle-btn {
        margin-left: 4px;
        white-space: nowrap;
    }

    .nav-brand-text {
        display: none; /* Hide logo text to save space */
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 60px 16px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-brand-col {
        text-align: center;
        align-items: center;
    }

    .footer-links-col {
        text-align: center;
        align-items: center;
    }

    .footer-icons-inline {
        justify-content: center;
    }

    #download-cv-btn {
        align-self: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .contact-modal-content {
        padding: 32px 24px;
    }

    .contact-trigger-wrapper {
        padding: 60px 16px;
    }

    .contact-canvas {
        mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
        -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
    }

    .contact-actions-vertical {
        width: 100%;
        max-width: 320px;
    }

    .social-pill {
        width: 100%;
        justify-content: center;
        gap: 8px;
    }

    .social-pill-link {
        font-size: 0.85rem;
        padding: 6px 8px;
    }
    
    #contact-trigger {
        width: 100%;
    }

    .huge-footer-text {
        font-size: 14vw;
        margin-top: 15px;
    }
}

/* Global Cursor Glow */
#global-cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    background: radial-gradient(circle at var(--mouse-x, -1000px) var(--mouse-y, -1000px), rgba(99,102,241,0.18) 0%, transparent 120px);
    transition: opacity 0.3s ease;
    opacity: 0; /* Hidden by default until mouse moves */
}