@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;600;700;800&family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ==========================================
   DESIGN SYSTEM VARIABLES & THEMES
   ========================================== */
:root {
    /* Fonts */
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Theme-independent colors */
    --color-primary: #8b5cf6; /* violet-500 */
    --color-primary-hover: #7c3aed;
    --color-secondary: #06b6d4; /* cyan-500 */
    --color-secondary-hover: #0891b2;
    --color-accent: #f43f5e; /* rose-500 */
    
    /* Dark Theme (Default) */
    --bg-base: #0b0f19;
    --bg-surface: rgba(17, 24, 39, 0.7);
    --bg-surface-solid: #111827;
    --bg-card: rgba(22, 28, 45, 0.65);
    --bg-card-hover: rgba(30, 41, 59, 0.8);
    --text-primary: #f3f4f6;
    --text-muted: #9ca3af;
    --text-inverse: #0f172a;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(139, 92, 246, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glass-blur: blur(12px);
    
    /* Glares & Glows */
    --glow-primary: rgba(139, 92, 246, 0.15);
    --glow-secondary: rgba(6, 182, 212, 0.15);

    /* Gradients */
    --grad-primary: linear-gradient(135deg, #8b5cf6, #3b82f6);
    --grad-secondary: linear-gradient(135deg, #06b6d4, #3b82f6);
    --grad-accent: linear-gradient(135deg, #f43f5e, #ec4899);
    --grad-dark: linear-gradient(180deg, #0b0f19 0%, #030712 100%);
    --grad-text: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);

    /* Transitions & Borders */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
}

[data-theme="light"] {
    /* Light Theme */
    --bg-base: #f8fafc;
    --bg-surface: rgba(255, 255, 255, 0.7);
    --bg-surface-solid: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.75);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --text-primary: #0f172a;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    --border-color: rgba(0, 0, 0, 0.06);
    --border-hover: rgba(139, 92, 246, 0.3);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.06);
    
    /* Glares & Glows */
    --glow-primary: rgba(139, 92, 246, 0.05);
    --glow-secondary: rgba(6, 182, 212, 0.05);
    
    /* Gradients */
    --grad-dark: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    --grad-text: linear-gradient(135deg, #0f172a 0%, #475569 100%);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
}

body {
    background: var(--bg-base);
    background-image: var(--grad-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-base);
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.6);
}

/* Base typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

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

button, input, textarea {
    font-family: inherit;
}

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

/* Section styling */
section {
    padding: 100px 24px;
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
}

/* ==========================================
   UTILITY CLASSES & DECORATIVE
   ========================================== */
.gradient-text {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    font-weight: 800;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 48px;
}

.glow-orb {
    position: absolute;
    border-radius: var(--radius-full);
    filter: blur(80px);
    z-index: -1;
    opacity: 0.45;
    pointer-events: none;
}

.orb-primary {
    background: var(--color-primary);
    width: 300px;
    height: 300px;
    top: 10%;
    left: -5%;
}

.orb-secondary {
    background: var(--color-secondary);
    width: 350px;
    height: 350px;
    bottom: 10%;
    right: -5%;
}

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

.glass-panel:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

/* Reveal on scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   NAVIGATION BAR
   ========================================== */
.header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    transition: background var(--transition-normal), border-bottom var(--transition-normal), height var(--transition-normal);
}

.header-nav.scrolled {
    height: 70px;
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--glass-shadow);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.logo span {
    color: var(--color-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--grad-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.4);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    position: relative;
    padding: 8px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--grad-primary);
    transition: width var(--transition-normal);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-hover);
}

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

[data-theme="light"] .theme-toggle-btn:hover {
    background: rgba(0, 0, 0, 0.03);
}

/* Language Toggle Button */
.lang-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.lang-toggle-btn:hover {
    background: var(--grad-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.35);
}

[data-theme="light"] .lang-toggle-btn:hover {
    background: var(--grad-primary);
    color: white;
    border-color: transparent;
}

/* Button CTA */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background: var(--grad-primary);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

[data-theme="light"] .btn-secondary:hover {
    background: rgba(0, 0, 0, 0.02);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--text-primary);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* ==========================================
   HERO SECTION
   ========================================== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    width: 100%;
}

.hero-content {
    max-width: 650px;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
    font-weight: 800;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
}

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

/* Hero Visual Canvas/Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-banner-wrap {
    position: relative;
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: perspective(1000px) rotateY(-8deg) rotateX(5deg);
    transition: transform var(--transition-slow);
}

.hero-banner-wrap:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.hero-banner-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    filter: brightness(0.9);
}

/* Overlay System Badges in Hero */
.floating-badge {
    position: absolute;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite alternate;
}

.badge-desktop {
    top: 10%;
    left: -20px;
}

.badge-web {
    bottom: 20%;
    right: -20px;
    animation-delay: 2s;
}

.badge-mobile {
    bottom: -15px;
    left: 20%;
    animation-delay: 4s;
}

.badge-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.badge-text h4 {
    font-size: 0.9rem;
    font-weight: 700;
}

.badge-text p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Float Keyframes */
@keyframes float {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-15px); }
}

/* ==========================================
   PLATFORM MATRIX (Desktop, Web, Mobile)
   ========================================== */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.platform-card {
    padding: 40px;
    text-align: left;
}

.platform-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: transform var(--transition-normal), background var(--transition-normal), color var(--transition-normal);
}

.platform-card:hover .platform-icon-wrap {
    transform: scale(1.1) rotate(5deg);
    background: var(--grad-primary);
    color: white;
}

.platform-title {
    font-size: 1.4rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.platform-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.platform-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.platform-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.platform-features svg {
    color: var(--color-secondary);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ==========================================
   PROJECTS SHOWCASE (Filterable Portfolio)
   ========================================== */
.portfolio-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--grad-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 32px;
}

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-img-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #101524;
}

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

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

.project-category-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-secondary);
}

.project-details {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

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

.tag {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.project-summary {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
    flex-grow: 1;
}

.project-action {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.project-action svg {
    transition: transform var(--transition-fast);
}

.project-card:hover .project-action svg {
    transform: translateX(4px);
}

/* ==========================================
   ABOUT US SECTION
   ========================================== */
.about-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.about-feat-card {
    padding: 24px;
    text-align: left;
}

.about-feat-icon {
    width: 44px;
    height: 44px;
    background: rgba(6, 182, 212, 0.1);
    color: var(--color-secondary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.about-feat-title {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.about-feat-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.about-text {
    max-width: 600px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 1.05rem;
}

/* ==========================================
   TECH STACK MATRIX
   ========================================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.tech-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    text-align: center;
}

.tech-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    color: var(--text-muted);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.tech-card:hover .tech-icon {
    color: var(--color-primary);
    transform: translateY(-4px) scale(1.1);
}

.tech-name {
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==========================================
   CONTACT / INQUIRY FORM
   ========================================== */
.contact-container {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.contact-details-text h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

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

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.social-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.social-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* Form Styles */
.form-card {
    padding: 40px;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group-full {
    grid-column: span 2;
}

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

.form-input, .form-textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
    background: rgba(255, 255, 255, 0.04);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Toast Notification */
.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--bg-surface-solid);
    border-left: 4px solid var(--color-primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: var(--text-primary);
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left-color: #10b981; /* emerald-500 */
}

/* ==========================================
   CASE STUDY MODAL DIALOG
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    padding: 24px;
}

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

.modal-content {
    background: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

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

.modal-close-btn {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--border-hover);
    transform: scale(1.05);
}

.modal-hero-img {
    width: 100%;
    aspect-ratio: 16 / 8;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.modal-body {
    padding: 40px;
}

.modal-header-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 32px;
}

.modal-title-wrap {
    max-width: 70%;
}

.modal-title {
    font-size: 2rem;
    margin-bottom: 8px;
}

.modal-subtitle {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.modal-meta-item h5 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 4px;
    letter-spacing: 0.05em;
}

.modal-meta-item p {
    font-weight: 600;
    font-size: 0.95rem;
}

.modal-description-section h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    border-left: 4px solid var(--color-primary);
    padding-left: 12px;
}

.modal-description-section p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 1rem;
    line-height: 1.7;
}

.modal-features-list {
    list-style: none;
    margin-bottom: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.modal-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.modal-features-list svg {
    color: var(--color-secondary);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ==========================================
   FOOTER SECTION
   ========================================== */
.footer-wrap {
    border-top: 1px solid var(--border-color);
    padding: 80px 24px 40px;
    max-width: 1280px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 16px;
    font-size: 0.95rem;
}

.footer-links-col h4 {
    font-size: 1rem;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

.footer-links-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-col a {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-links-col a:hover {
    color: var(--text-primary);
    padding-left: 4px;
}

.footer-newsletter h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-newsletter p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-form .form-input {
    flex-grow: 1;
    padding: 10px 14px;
}

.newsletter-form .btn {
    padding: 10px 16px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

/* Back to Top Button */
.back-to-top-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    z-index: 999;
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-normal);
}

.back-to-top-btn.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top-btn:hover {
    transform: translateY(-5px);
    background: var(--color-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

/* ==========================================
   RESPONSIVE MEDIA QUERIES
   ========================================== */

/* Large Tablets and smaller desktops */
@media (max-width: 1024px) {
    section {
        padding: 80px 24px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        width: 100%;
    }
    
    .hero-visual {
        max-width: 450px;
        margin: 0 auto;
    }
    
    .platforms-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-text {
        max-width: 100%;
        text-align: center;
    }
    
    .tech-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

/* Tablets and Mobiles */
@media (max-width: 768px) {
    .header-nav {
        padding: 0 24px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-surface-solid);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        padding: 40px;
        transform: translateY(-150%);
        transition: transform var(--transition-slow);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-actions {
        margin-right: 48px; /* Room for menu toggle */
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group-full {
        grid-column: span 1;
    }
    
    .modal-features-list {
        grid-template-columns: 1fr;
    }
    
    .modal-meta-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .modal-header-section {
        flex-direction: column;
        gap: 16px;
    }
    
    .modal-title-wrap {
        max-width: 100%;
    }
}

/* Extra Small Mobiles */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
        width: 100%;
    }
    
    .floating-badge {
        display: none; /* Hide floating badges on very small viewports to avoid overlapping */
    }
}

/* ==========================================
   RTL / ARABIC LANGUAGE SUPPORT
   ========================================== */

/* Arabic font family when RTL is active */
[dir="rtl"] body {
    font-family: 'Cairo', sans-serif;
}

[dir="rtl"] h1, [dir="rtl"] h2,
[dir="rtl"] h3, [dir="rtl"] h4,
[dir="rtl"] h5, [dir="rtl"] h6 {
    font-family: 'Cairo', sans-serif;
    letter-spacing: 0;
}

/* Header nav layout */
[dir="rtl"] .header-nav {
    flex-direction: row-reverse;
}

[dir="rtl"] .logo-icon {
    margin-left: 10px;
    margin-right: 0;
}

/* Flip nav underline for RTL */
[dir="rtl"] .nav-link::after {
    left: auto;
    right: 0;
}

/* Hero section text alignment */
[dir="rtl"] .hero-content {
    text-align: right;
}

[dir="rtl"] .hero-buttons {
    justify-content: flex-end;
}

[dir="rtl"] .hero-stats {
    flex-direction: row-reverse;
}

/* Hero floating badges */
[dir="rtl"] .badge-desktop {
    right: auto;
    left: -20px;
}

[dir="rtl"] .badge-web {
    left: auto;
    right: -20px;
}

/* Platform cards */
[dir="rtl"] .platform-card {
    text-align: right;
}

[dir="rtl"] .platform-features li {
    flex-direction: row-reverse;
}

/* About section */
[dir="rtl"] .about-container {
    direction: rtl;
}

[dir="rtl"] .about-feat-card {
    text-align: right;
}

[dir="rtl"] .about-text {
    text-align: right;
}

/* Project card action arrow */
[dir="rtl"] .project-action {
    flex-direction: row-reverse;
    text-align: right;
}

[dir="rtl"] .project-card:hover .project-action svg {
    transform: translateX(-4px);
}

/* Project category badge position */
[dir="rtl"] .project-category-badge {
    right: auto;
    left: 16px;
}

/* Modal */
[dir="rtl"] .modal-header-section {
    flex-direction: row-reverse;
}

[dir="rtl"] .modal-title-wrap {
    text-align: right;
}

[dir="rtl"] .modal-meta-grid {
    direction: rtl;
}

[dir="rtl"] .modal-description-section {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] .modal-features-list li {
    flex-direction: row-reverse;
    text-align: right;
}

/* Contact section */
[dir="rtl"] .contact-item-card {
    flex-direction: row-reverse;
    text-align: right;
}

[dir="rtl"] .contact-form {
    direction: rtl;
}

[dir="rtl"] .contact-form label {
    text-align: right;
}

/* Footer */
[dir="rtl"] .footer-top {
    direction: rtl;
}

[dir="rtl"] .footer-brand {
    text-align: right;
}

[dir="rtl"] .footer-links-col {
    text-align: right;
}

[dir="rtl"] .footer-bottom {
    flex-direction: row-reverse;
}

[dir="rtl"] .footer-newsletter {
    text-align: right;
}

[dir="rtl"] .footer-newsletter form {
    flex-direction: row-reverse;
}

/* Mobile nav RTL */
@media (max-width: 768px) {
    [dir="rtl"] .nav-menu {
        left: auto;
        right: 0;
    }

    [dir="rtl"] .nav-actions {
        margin-right: 0;
        margin-left: 48px;
    }
}