/* Ultra-Optimized High-Performance CSS Design System for Eng. Tarig Abdalla Saeed Adam Portfolio */

:root {
    /* Color Palette - Dark Theme Default */
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.92);
    --bg-card-hover: rgba(26, 36, 56, 0.95);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 242, 254, 0.4);
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-cyan: #00f2fe;
    --accent-blue: #4facfe;
    --accent-gold: #e2b714;
    --accent-emerald: #10b981;
    --accent-purple: #8b5cf6;
    
    --gradient-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --gradient-gold: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    --gradient-emerald: linear-gradient(135deg, #10b981 0%, #059669 100%);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 15px rgba(0, 242, 254, 0.2);
    
    --font-ar: 'Cairo', system-ui, -apple-system, sans-serif;
    --font-en: 'Outfit', system-ui, -apple-system, sans-serif;
    
    --nav-height: 75px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease-out;
}

/* Light Theme Overrides */
[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-card-hover: rgba(241, 245, 249, 1);
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-glow: rgba(79, 172, 254, 0.4);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 15px rgba(79, 172, 254, 0.15);
}

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

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

body {
    font-family: var(--font-ar);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    /* Hardware acceleration optimization */
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body[dir="ltr"] {
    font-family: var(--font-en);
}

/* Lightweight Static Background Gradients (Zero GPU repaint overhead) */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: 
        radial-gradient(circle at 85% 15%, rgba(0, 242, 254, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 15% 85%, rgba(79, 172, 254, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(226, 183, 20, 0.03) 0%, transparent 50%);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #1f2937;
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Container & Sections */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.section {
    padding: 5rem 0;
    position: relative;
}

/* Optimized Glass Card (No continuous heavy backdrop-blur repaints) */
.glass-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    will-change: transform;
}

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

/* Section Headers */
.section-header.center {
    text-align: center;
    margin-bottom: 3rem;
}

.sub-title {
    display: inline-block;
    color: var(--accent-cyan);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.4rem;
    padding: 0.2rem 0.9rem;
    background: rgba(0, 242, 254, 0.08);
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 242, 254, 0.2);
}

.section-title {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.title-line {
    width: 70px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0.8rem auto 0;
    border-radius: var(--radius-full);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(10, 14, 23, 0.95);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.95);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-avatar img {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-cyan);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-weight: 800;
    font-size: 1rem;
    line-height: 1.2;
}

.brand-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-cyan);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.icon-btn, .lang-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}

.icon-btn:hover, .lang-toggle:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
}

/* Mobile Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #0a0e17;
    box-shadow: 0 4px 12px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 242, 254, 0.45);
}

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

.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* Hero Section */
.hero-section {
    padding-top: calc(var(--nav-height) + 3.5rem);
    padding-bottom: 4rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

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

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-emerald);
    padding: 0.35rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-emerald);
    border-radius: 50%;
}

.hero-title {
    font-size: 2.75rem;
    line-height: 1.2;
    font-weight: 900;
    margin-bottom: 1rem;
}

.greeting {
    display: block;
    font-size: 1.4rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typing-container {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 1.25rem;
    min-height: 2rem;
}

.dynamic-typing {
    border-right: 2px solid var(--accent-gold);
    padding-right: 4px;
}

body[dir="ltr"] .dynamic-typing {
    border-right: none;
    border-left: 2px solid var(--accent-gold);
    padding-left: 4px;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1.75rem;
    max-width: 620px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.highlight-icon {
    font-size: 1.4rem;
    color: var(--accent-cyan);
}

.highlight-item h4 {
    font-size: 0.95rem;
    font-weight: 800;
}

.highlight-item p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Profile Card */
.hero-media {
    display: flex;
    justify-content: center;
}

.media-card-wrapper {
    width: 100%;
    max-width: 360px;
}

.profile-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1.5px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    background: var(--bg-card);
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.badge-floating {
    position: absolute;
    background: rgba(17, 24, 39, 0.95);
    border: 1px solid var(--border-color);
    padding: 0.6rem 0.9rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .badge-floating {
    background: rgba(255, 255, 255, 0.95);
}

.badge-floating i {
    font-size: 1.3rem;
    color: var(--accent-gold);
}

.badge-top {
    top: 15px;
    right: -15px;
}

body[dir="ltr"] .badge-top {
    right: auto;
    left: -15px;
}

.badge-bottom {
    bottom: 15px;
    left: -15px;
}

body[dir="ltr"] .badge-bottom {
    left: auto;
    right: -15px;
}

.badge-floating strong {
    display: block;
    font-size: 0.85rem;
}

.badge-floating span {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
}

.about-card {
    padding: 2rem;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--accent-cyan);
}

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

.info-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.info-item i {
    font-size: 1.2rem;
    color: var(--accent-cyan);
}

.info-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.info-val {
    font-weight: 700;
    font-size: 0.85rem;
}

.personal-skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
    margin-bottom: 1.5rem;
}

.p-skill-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-md);
}

.p-skill-card i {
    font-size: 1.3rem;
    color: var(--accent-gold);
    margin-bottom: 0.4rem;
}

.p-skill-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.p-skill-card p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
}

.languages-box {
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.box-subtitle {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.lang-bars {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.lang-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.bar-outer {
    height: 7px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.bar-inner {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 850px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    right: 24px;
    width: 3px;
    background: var(--border-color);
}

body[dir="ltr"] .timeline::before {
    right: auto;
    left: 24px;
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    padding-right: 70px;
}

body[dir="ltr"] .timeline-item {
    padding-right: 0;
    padding-left: 70px;
}

.timeline-marker {
    position: absolute;
    top: 0;
    right: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent-cyan);
    z-index: 2;
}

body[dir="ltr"] .timeline-marker {
    right: auto;
    left: 0;
}

.timeline-content {
    padding: 1.75rem;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.exp-role {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.exp-company {
    font-size: 0.95rem;
    color: var(--accent-cyan);
    font-weight: 600;
    margin-top: 0.2rem;
}

.badge-pill {
    background: rgba(226, 183, 20, 0.12);
    border: 1px solid rgba(226, 183, 20, 0.25);
    color: var(--accent-gold);
    padding: 0.25rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
}

.exp-bullets {
    list-style: none;
}

.exp-bullets li {
    position: relative;
    padding-right: 1.25rem;
    margin-bottom: 0.6rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

body[dir="ltr"] .exp-bullets li {
    padding-right: 0;
    padding-left: 1.25rem;
}

.exp-bullets li::before {
    content: '•';
    position: absolute;
    right: 0;
    color: var(--accent-cyan);
    font-size: 1.1rem;
}

body[dir="ltr"] .exp-bullets li::before {
    right: auto;
    left: 0;
}

/* Skills Grid */
.skills-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
    margin-bottom: 2.5rem;
}

.skills-column {
    padding: 2rem;
}

.column-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--accent-cyan);
}

.skill-item {
    margin-bottom: 1.25rem;
}

.skill-meta {
    display: flex;
    justify-content: space-between;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.text-orange { color: #f97316; }
.text-yellow { color: #eab308; }
.text-purple { color: #a855f7; }
.text-blue { color: #3b82f6; }
.text-cyan { color: #06b6d4; }
.text-emerald { color: #10b981; }
.text-green { color: #22c55e; }
.text-red { color: #ef4444; }
.text-gold { color: #e2b714; }

.tools-badges-container {
    text-align: center;
    margin-top: 2.5rem;
}

.center-subtitle {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.badge-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.tool-chip {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.tool-chip:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.service-card {
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.service-icon {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-md);
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1.25rem;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

.service-link {
    text-decoration: none;
    color: var(--accent-cyan);
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

body[dir="ltr"] .arrow-icon {
    transform: rotate(180deg);
}

/* Certifications */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
}

.cert-card {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cert-info {
    flex: 1;
}

.cert-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.cert-card h4 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 0.2rem;
}

.cert-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.clickable-cert {
    cursor: pointer;
    position: relative;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.clickable-cert:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 30px rgba(0, 242, 254, 0.25);
}

.cert-view-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.4rem;
    font-size: 0.78rem;
    color: var(--accent-cyan);
    font-weight: 700;
    background: rgba(0, 242, 254, 0.1);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 242, 254, 0.3);
    transition: var(--transition-fast);
}

.clickable-cert:hover .cert-view-badge {
    background: var(--accent-cyan);
    color: #0a0e17;
}

.cert-modal-box {
    max-width: 750px;
    width: 92%;
}

.cert-modal-body {
    text-align: center;
    padding: 1.5rem;
    overflow-y: auto;
}

.cert-modal-img {
    max-width: 100%;
    max-height: 65vh;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    border: 2px solid var(--border-color);
    object-fit: contain;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    pointer-events: auto;
}

.cert-readonly-banner {
    background: rgba(226, 183, 20, 0.12);
    border: 1px solid rgba(226, 183, 20, 0.3);
    color: var(--accent-gold);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cert-modal-footer-info {
    margin-top: 1.2rem;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.cert-modal-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.3rem;
}

/* Portfolio / Featured Technical Projects Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.portfolio-card {
    padding: 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    border: 1px solid var(--border-color);
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-emerald);
}

.portfolio-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-emerald);
    box-shadow: 0 12px 35px rgba(16, 185, 129, 0.25);
}

.portfolio-badge {
    position: absolute;
    top: 1.2rem;
    left: 1.2rem;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-full);
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-emerald);
    border: 1px solid rgba(16, 185, 129, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

body[dir="rtl"] .portfolio-badge {
    left: auto;
    right: 1.2rem;
}

.portfolio-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.portfolio-content h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.portfolio-content p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.portfolio-tags .tag {
    font-size: 0.78rem;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.portfolio-actions {
    margin-top: auto;
}

.btn-portfolio {
    width: 100%;
    justify-content: center;
    gap: 0.5rem;
    background: var(--gradient-emerald);
    color: #ffffff !important;
    font-weight: 700;
    padding: 0.8rem 1.25rem;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.btn-portfolio:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.justify-center {
    justify-content: center;
}

/* Color Helper Utility Classes */
.text-gold { color: var(--accent-gold, #e2b714) !important; }
.text-cyan { color: var(--accent-cyan, #00f2fe) !important; }
.text-yellow { color: #f59e0b !important; }
.text-purple { color: var(--accent-purple, #8b5cf6) !important; }
.text-emerald { color: var(--accent-emerald, #10b981) !important; }
.text-blue { color: var(--accent-blue, #4facfe) !important; }


/* Service Estimator Calculator */
.estimator-box {
    padding: 2.5rem;
    max-width: 850px;
    margin: 0 auto;
}

.est-intro {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.75rem;
    text-align: center;
}

.estimator-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.est-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.est-checkbox:hover {
    border-color: var(--accent-cyan);
}

.est-check {
    display: none;
}

.custom-check {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    flex-shrink: 0;
    margin-top: 2px;
}

.est-check:checked + .custom-check {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: #0a0e17;
}

.option-text strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.option-text small {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.est-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 1.25rem;
}

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

.summary-details strong {
    font-size: 1.15rem;
    color: var(--accent-cyan);
    margin-right: 0.4rem;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 2rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-card {
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.c-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(0, 242, 254, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent-cyan);
}

.contact-card h4 {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.c-link, .c-loc-val {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.c-link:hover {
    color: var(--accent-cyan);
}

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

.form-title {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.form-feedback {
    margin-top: 0.85rem;
    font-weight: 700;
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
}

.footer-brand h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 0.4rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

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

.footer-copy {
    color: var(--text-muted);
    font-size: 0.8rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
}

/* Lightweight Floating WhatsApp Button */
.floating-whatsapp {
    position: fixed;
    bottom: 25px;
    left: 25px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #25d366;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 999;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

body[dir="ltr"] .floating-whatsapp {
    left: auto;
    right: 25px;
}

.floating-whatsapp:hover {
    transform: scale(1.08);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-box {
    width: 100%;
    max-width: 780px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.modal-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.6rem;
    cursor: pointer;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.85rem;
}

/* Printable CV */
.cv-printable-content {
    color: #111827;
    background: #ffffff;
    padding: 2rem;
    border-radius: var(--radius-md);
    font-family: Arial, sans-serif;
}

.cv-header {
    text-align: center;
    margin-bottom: 0.85rem;
}

.cv-header h2 {
    font-size: 1.6rem;
    color: #111827;
}

.cv-sub {
    font-weight: bold;
    color: #2563eb;
    margin: 0.2rem 0;
}

.cv-contact-line {
    font-size: 0.85rem;
    color: #4b5563;
}

.cv-section {
    margin-top: 1rem;
}

.cv-section h3 {
    font-size: 1rem;
    border-bottom: 2px solid #2563eb;
    padding-bottom: 0.2rem;
    margin-bottom: 0.4rem;
    color: #1e3a8a;
}

.cv-job {
    margin-bottom: 0.85rem;
}

.cv-job h4 {
    font-size: 0.9rem;
    color: #1f2937;
    margin-bottom: 0.2rem;
}

.cv-job ul {
    padding-left: 1.1rem;
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-highlights {
        grid-template-columns: 1fr;
    }

    .hero-media {
        order: -1;
    }

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

    .estimator-options {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-150%);
        transition: transform var(--transition-fast);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .mobile-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2.1rem;
    }

    .timeline-item {
        padding-right: 0;
        padding-left: 50px;
    }

    .timeline::before {
        right: auto;
        left: 18px;
    }

    .timeline-marker {
        right: auto;
        left: 0;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    body[dir="rtl"] .timeline-item {
        padding-left: 0;
        padding-right: 50px;
    }

    body[dir="rtl"] .timeline::before {
        left: auto;
        right: 18px;
    }

    body[dir="rtl"] .timeline-marker {
        left: auto;
        right: 0;
    }
}