/* Custom Thmanyah Fonts — served from CDN (github.com/khaliddosari/thmanyah-fonts via jsDelivr) */

/* 1. Thmanyah Serif Display (Signature Editorial Display Serif) */
@font-face {
    font-family: 'Thmanyah Serif Display';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/woff2/thmanyahserifdisplay-Bold.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/otf/thmanyahserifdisplay-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Thmanyah Serif Display';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/woff2/thmanyahserifdisplay-Regular.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/otf/thmanyahserifdisplay-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* 2. Thmanyah Serif Text (Editorial Body Serif) */
@font-face {
    font-family: 'Thmanyah Serif Text';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahseriftext/woff2/thmanyahseriftext-Bold.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahseriftext/otf/thmanyahseriftext-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Thmanyah Serif Text';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahseriftext/woff2/thmanyahseriftext-Regular.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahseriftext/otf/thmanyahseriftext-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* 3. Thmanyah Sans (Modern Arabian Sans Serif) */
@font-face {
    font-family: 'Thmanyah Sans';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahsans/woff2/thmanyahsans-Bold.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahsans/otf/thmanyahsans-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Thmanyah Sans';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahsans/woff2/thmanyahsans-Regular.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahsans/otf/thmanyahsans-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* Legacy alias for simple backward compatibility */
@font-face {
    font-family: 'Thmanyah';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/woff2/thmanyahserifdisplay-Bold.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/otf/thmanyahserifdisplay-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Thmanyah';
    src: url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/woff2/thmanyahserifdisplay-Regular.woff2') format('woff2'),
         url('https://cdn.jsdelivr.net/gh/khaliddosari/thmanyah-fonts@v1/thmanyah%20typeface/thmanyahserifdisplay/otf/thmanyahserifdisplay-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* VARIABLES */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --text-primary: #e8e8ed;
    --text-secondary: #9999a8;
    --accent: #4fc3f7;
    --accent-dark: #0288d1;
    --accent-gradient: linear-gradient(135deg, #4fc3f7, #0288d1);
    --border: rgba(255, 255, 255, 0.08);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'IBM Plex Sans', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius: 16px;
    --transition: 0.3s ease;

    /* Liquid Glass */
    --glass-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    --glass-bg-hover: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
    --glass-blur: blur(24px) saturate(180%);
    --glass-blur-strong: blur(32px) saturate(200%);
    --glass-border: 1px solid rgba(255, 255, 255, 0.12);
    --glass-highlight:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.18),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.25),
        inset 1px 0 0 0 rgba(255, 255, 255, 0.06),
        inset -1px 0 0 0 rgba(0, 0, 0, 0.1);
    --glass-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    --glass-shadow-hover: 0 18px 55px rgba(0, 0, 0, 0.45), 0 0 40px rgba(79, 195, 247, 0.1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* Ambient color field — gives the liquid glass something to refract through */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(ellipse 60% 50% at 15% 20%, rgba(79, 195, 247, 0.18), transparent 60%),
        radial-gradient(ellipse 50% 60% at 85% 30%, rgba(2, 136, 209, 0.15), transparent 60%),
        radial-gradient(ellipse 70% 50% at 50% 80%, rgba(126, 87, 194, 0.14), transparent 65%),
        radial-gradient(ellipse 40% 40% at 90% 90%, rgba(79, 195, 247, 0.1), transparent 60%);
    filter: blur(40px);
}

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

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

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

ul {
    list-style: none;
}

/* UTILITIES */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-alt {
    background: linear-gradient(
        to bottom,
        transparent 0,
        rgba(255, 255, 255, 0.018) 140px,
        rgba(255, 255, 255, 0.018) calc(100% - 140px),
        transparent 100%
    );
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent-gradient);
    margin: 12px auto 0;
    border-radius: 2px;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    font-family: var(--font-heading);
    font-weight: 500;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #000;
    position: relative;
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.2),
        0 6px 20px rgba(79, 195, 247, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.2),
        0 10px 30px rgba(79, 195, 247, 0.4);
    color: #000;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: 6px;
    background: var(--accent-gradient);
    color: #000;
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.35),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.15),
        0 4px 12px rgba(79, 195, 247, 0.2);
}

.btn-sm:hover {
    color: #000;
    transform: translateY(-1px);
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.45),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.15),
        0 6px 18px rgba(79, 195, 247, 0.35);
}

.btn-outline {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    color: var(--accent);
    box-shadow: var(--glass-highlight);
}

.btn-outline:hover {
    background: var(--accent);
    color: #000;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    backdrop-filter: blur(0px) saturate(100%);
    -webkit-backdrop-filter: blur(0px) saturate(100%);
    transition: background var(--transition), padding var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 calc(100% - 6px), transparent 100%);
            mask-image: linear-gradient(to bottom, #000 0%, #000 calc(100% - 6px), transparent 100%);
}

.navbar.scrolled {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    padding: 10px 0;
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.12),
        0 8px 32px rgba(0, 0, 0, 0.35);
}

.nav-container {
    width: 100%;
    padding: 0 24px;
    display: flex;
    align-items: center;
    position: relative;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: auto;
    flex-shrink: 0;
}

.nav-logo:hover {
    color: var(--accent);
}

.logo-img {
    height: 45px;
    width: 45px;
    object-fit: contain;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
}

/* Hide mobile sidebar components on desktop */
.sidebar-header,
.sidebar-footer,
.nav-overlay {
    display: none;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.nav-links a {
    font-family: var(--font-heading);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

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

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

.nav-links a i {
    display: none;
}

/* Hamburger */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: all var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* HERO */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-photo {
    width: 380px;
    height: 380px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 24px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow:
        inset 0 2px 0 0 rgba(255, 255, 255, 0.25),
        inset 0 -2px 0 0 rgba(0, 0, 0, 0.3),
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 60px rgba(79, 195, 247, 0.2);
    position: relative;
}

.hero-photo::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 40%, transparent 60%, rgba(0, 0, 0, 0.15) 100%);
    pointer-events: none;
    mix-blend-mode: overlay;
}

.hero-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.hero-name-ar {
    font-family: 'Thmanyah Serif Display', 'Thmanyah Serif Text', 'Thmanyah Sans', 'Thmanyah', 'IBM Plex Sans Arabic', sans-serif;
    text-rendering: optimizeLegibility;
    font-variant-ligatures: common-ligatures discretionary-ligatures contextual;
    font-feature-settings: "liga" on, "dlig" on, "clig" on, "calt" on, "salt" on, "ss01" on, "ss02" on, "ss03" on, "ss04" on, "ss05" on, "ss06" on, "ss07" on, "ss08" on;
    -webkit-font-feature-settings: "liga" on, "dlig" on, "clig" on, "calt" on, "salt" on, "ss01" on, "ss02" on, "ss03" on, "ss04" on, "ss05" on, "ss06" on, "ss07" on, "ss08" on;
}

.hero-tagline {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 400;
}

.hero-contact {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 32px;
}

.hero-contact a {
    color: var(--text-secondary);
    font-size: 1.3rem;
    transition: all var(--transition);
}

.hero-contact a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* ABOUT */
.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* EDUCATION */
.education-grid {
    display: grid;
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}

.edu-card {
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight), var(--glass-shadow);
    transition: all var(--transition);
}

.edu-card:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--glass-highlight), var(--glass-shadow-hover);
}

.edu-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.org-logo {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: contain;
    flex-shrink: 0;
}

.edu-card-header h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
}

.edu-degree {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
}

.edu-dates {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.edu-dates i {
    margin-right: 6px;
}

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

.edu-details li {
    list-style: disc inside;
    margin-left: 0;
    padding-left: 0;
}

/* PROJECTS */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight), var(--glass-shadow);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent);
    pointer-events: none;
    border-radius: var(--radius) var(--radius) 0 0;
}

.project-card:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-4px);
    box-shadow: var(--glass-highlight), var(--glass-shadow-hover);
}

.project-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tag {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.18), rgba(79, 195, 247, 0.06));
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(79, 195, 247, 0.2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.12),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.15);
}

.project-links {
    font-family: var(--font-heading);
    display: flex;
    gap: 16px;
}

.project-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

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

.project-links i {
    margin-right: 4px;
}

/* EXPERIENCE */
.timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

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

.timeline-dot {
    position: absolute;
    left: -37px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px rgba(79, 195, 247, 0.4);
}

.timeline-content {
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight), var(--glass-shadow);
    transition: all var(--transition);
}

.timeline-content:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--glass-highlight), var(--glass-shadow-hover);
}

.exp-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 8px;
}

.exp-header h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
}

.exp-company {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
}

.exp-dates {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.exp-dates i {
    margin-right: 6px;
}

.exp-responsibilities {
    padding-left: 18px;
    list-style: disc;
}

.exp-responsibilities li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 6px;
    list-style: disc;
}

/* CERTIFICATIONS */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.cert-card {
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight), var(--glass-shadow);
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: all var(--transition);
}

.cert-card:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--glass-highlight), var(--glass-shadow-hover);
}

.cert-badge {
    flex-shrink: 0;
}

.cert-badge img {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    object-fit: contain;
}

.cert-info h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.3;
    min-height: 3.9em;
    margin-bottom: 4px;
}

.cert-org {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.cert-date {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 12px;
}

.cert-date i {
    margin-right: 6px;
}

.cert-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* SKILLS */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.skill-group h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent);
}

.skill-tags {
    font-family: var(--font-mono);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow:
        inset 0 1px 0 0 rgba(255, 255, 255, 0.12),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.15);
    transition: all var(--transition);
}

.skill-tag:hover {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.2), rgba(79, 195, 247, 0.05));
    border-color: rgba(79, 195, 247, 0.4);
    color: var(--accent);
    transform: translateY(-1px);
}

/* LANGUAGES */
.languages-grid {
    max-width: 560px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.language-card {
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 24px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight), var(--glass-shadow);
    text-align: center;
    transition: all var(--transition);
}

.language-card:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--glass-highlight), var(--glass-shadow-hover);
}

.language-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.15rem;
}

/* FOOTER */
.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 16px;
}

.footer-social a {
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: all var(--transition);
}

.footer-social a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

.footer-copy {
    font-family: var(--font-heading);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* WIDE SECTIONS — fill the empty side space on large screens */
#projects .container,
#certifications .container,
#skills .container {
    max-width: 1680px;
}

@media (min-width: 1400px) {
    #projects .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    #certifications .certs-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    #skills .skills-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .navbar {
        -webkit-mask-image: none;
                mask-image: none;
    }

    .nav-toggle {
        display: block;
        position: relative;
        z-index: 1000;
    }

    /* Transition rules for background content on mobile */
    #hero,
    .section,
    .footer {
        transition: filter 0.4s ease, opacity 0.4s ease;
    }

    /* Deep blur and fade main site when sidebar is open to isolate the menu */
    body.menu-open #hero,
    body.menu-open .section,
    body.menu-open .footer {
        filter: blur(12px) brightness(0.4);
        opacity: 0.25;
        pointer-events: none;
    }

    /* Disable conflicting parent properties on navbar to allow sidebar to render its own backdrop-filter */
    body.menu-open .navbar {
        background: transparent !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        -webkit-mask-image: none !important;
        mask-image: none !important;
        box-shadow: none !important;
    }

    /* Dim and blur background when sidebar is active */
    .nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 998;
        background: rgba(5, 5, 8, 0.45);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0.4s ease;
    }

    .nav-overlay.open {
        opacity: 1;
        visibility: visible;
    }

    /* Premium right-sliding liquid glass drawer */
    .nav-links {
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: auto;
        width: min(340px, 85vw);
        height: 100vh;
        height: 100dvh;
        padding: 0;
        background: rgba(10, 10, 15, 0.85);
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 0;
        backdrop-filter: blur(28px) saturate(210%);
        -webkit-backdrop-filter: blur(28px) saturate(210%);
        box-shadow: 
            inset 0 1px 0 0 rgba(255, 255, 255, 0.06),
            -10px 0 40px rgba(0, 0, 0, 0.6);
        z-index: 999;
        transform: translateX(100%);
        opacity: 1;
        visibility: visible;
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    /* Sidebar Header */
    .sidebar-header {
        display: flex;
        align-items: center;
        padding: 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        margin-bottom: 16px;
    }

    .sidebar-brand {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .sidebar-logo {
        width: 44px;
        height: 44px;
        object-fit: contain;
    }

    .sidebar-name {
        display: block;
        font-family: var(--font-heading);
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.2;
    }

    .sidebar-tagline {
        display: block;
        font-size: 0.75rem;
        color: var(--accent);
        font-weight: 500;
    }

    /* Menu Items */
    .nav-links li:not(.sidebar-header):not(.sidebar-footer) {
        width: 100%;
        padding: 0 16px;
        margin-bottom: 6px;
    }

    .nav-links a {
        display: flex;
        align-items: center;
        gap: 14px;
        width: 100%;
        padding: 12px 18px;
        border-radius: 12px;
        font-family: var(--font-heading);
        font-size: 1.05rem;
        font-weight: 500;
        color: var(--text-secondary);
        transition: all var(--transition);
        position: relative;
    }

    .nav-links a i {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 24px;
        font-size: 1.1rem;
        color: var(--accent);
        opacity: 0.85;
        transition: transform var(--transition);
    }

    .nav-links a:hover i,
    .nav-links a.active i {
        transform: scale(1.1);
        opacity: 1;
    }

    .nav-links .nav-label {
        display: inline;
    }

    .nav-links a::after {
        display: none;
    }

    /* Hover & Active Capsules */
    .nav-links a:hover,
    .nav-links a.active {
        background: rgba(255, 255, 255, 0.05);
        color: var(--text-primary);
        transform: translateX(4px);
        box-shadow: 
            inset 0 1px 0 0 rgba(255, 255, 255, 0.05),
            0 4px 15px rgba(0, 0, 0, 0.15);
    }

    /* Sidebar Footer */
    .sidebar-footer {
        display: block;
        margin-top: auto;
        padding: 24px;
        padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        background: rgba(0, 0, 0, 0.15);
    }

    .sidebar-social {
        display: flex;
        justify-content: center;
        gap: 18px;
    }

    .sidebar-social a {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary) !important;
        transition: all var(--transition);
        padding: 0 !important;
        transform: none !important;
        box-shadow: none !important;
    }

    /* Style both Font Awesome icons and SVGs inside mobile sidebar social footer uniformly */
    .sidebar-social a i,
    .sidebar-social a svg {
        color: var(--text-secondary) !important;
        stroke: var(--text-secondary) !important;
        fill: none;
        transition: color var(--transition), stroke var(--transition), transform var(--transition);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 1.1em;
        height: 1.1em;
        font-size: 1.1rem;
        opacity: 1;
    }

    .sidebar-social a:hover {
        background: var(--accent-gradient);
        border-color: transparent;
        transform: translateY(-2px) !important;
        box-shadow: 0 4px 12px rgba(79, 195, 247, 0.3) !important;
    }

    .sidebar-social a:hover i,
    .sidebar-social a:hover svg {
        color: #000 !important;
        stroke: #000 !important;
    }

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

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

    .hero-photo {
        width: 140px;
        height: 140px;
    }

    .section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 36px;
    }

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

    .certs-grid {
        grid-template-columns: 1fr;
    }

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

    .timeline {
        padding-left: 24px;
    }

    .timeline-dot {
        left: -29px;
    }
}

@media (max-width: 480px) {
    .skills-container {
        grid-template-columns: 1fr;
    }

    .hero-name {
        font-size: 1.8rem;
    }
}