/* ==========================================
   CNK Dev - Modern CSS with Fluent Design
   ========================================== */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Light Mode */
    --primary: #0078d4;
    --primary-hover: #106ebe;
    --background: #f3f3f3;
    --surface: #ffffff;
    --surface-secondary: #fafafa;
    --text-primary: #1f1f1f;
    --text-secondary: #605e5c;
    --border: #edebe9;
    --shadow: rgba(0, 0, 0, 0.05);
    --shadow-hover: rgba(0, 0, 0, 0.1);
    
    /* Acrylic Effect */
    --acrylic-bg: rgba(255, 255, 255, 0.7);
    --acrylic-border: rgba(255, 255, 255, 0.3);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0078d4 0%, #005a9e 100%);
    --gradient-accent: linear-gradient(135deg, #00b7c3 0%, #0078d4 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary: #60cdff;
    --primary-hover: #4db8e8;
    --background: #1f1f1f;
    --surface: #2d2d2d;
    --surface-secondary: #252525;
    --text-primary: #ffffff;
    --text-secondary: #c8c6c4;
    --border: #3d3d3d;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.5);
    --acrylic-bg: rgba(45, 45, 45, 0.7);
    --acrylic-border: rgba(255, 255, 255, 0.1);
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--primary-hover);
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Section ===== */
.section {
    padding: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Gradient Text ===== */
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Acrylic Card (Fluent Design) ===== */
.acrylic-card {
    background: var(--acrylic-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--acrylic-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 8px 32px var(--shadow);
    transition: var(--transition);
}

.acrylic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 48px var(--shadow-hover);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 120, 212, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    background: var(--surface-secondary);
    border-color: var(--primary);
    color: var(--primary);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--acrylic-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid var(--acrylic-border);
    padding: 1rem 0;
    z-index: 1000;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.theme-toggle:hover {
    background: var(--surface-secondary);
    transform: rotate(15deg);
}

.theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: block;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.05;
    z-index: 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animated Logo Container */
.hero-logo-container {
    position: relative;
    width: 350px;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

/* Main Logo */
.hero-logo {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    position: relative;
    z-index: 3;
    box-shadow: 0 20px 60px rgba(0, 120, 212, 0.3);
    animation: logoFloat 4s ease-in-out infinite;
}

/* Glowing Background */
.logo-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 120, 212, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
    z-index: 1;
}

/* Animated Rings */
.logo-ring {
    position: absolute;
    border: 2px solid var(--primary);
    border-radius: 50%;
    opacity: 0;
}

.ring-1 {
    width: 300px;
    height: 300px;
    animation: ringPulse 3s ease-out infinite;
    animation-delay: 0s;
}

.ring-2 {
    width: 320px;
    height: 320px;
    animation: ringPulse 3s ease-out infinite;
    animation-delay: 1s;
}

.ring-3 {
    width: 340px;
    height: 340px;
    animation: ringPulse 3s ease-out infinite;
    animation-delay: 2s;
}

/* Logo Float Animation */
@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
        box-shadow: 0 20px 60px rgba(0, 120, 212, 0.3);
    }
    50% {
        transform: translateY(-15px) scale(1.03);
        box-shadow: 0 30px 80px rgba(0, 120, 212, 0.5);
    }
}

/* Pulse Animation for Glow */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Ring Pulse Animation */
@keyframes ringPulse {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        opacity: 0.6;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

.floating-card {
    position: absolute;
    background: var(--acrylic-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--acrylic-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: 0 8px 32px var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: float 3s ease-in-out infinite;
    z-index: 4;
}

.floating-card .card-icon {
    font-size: 2rem;
}

.floating-card .card-text {
    font-weight: 600;
    color: var(--text-primary);
}

.card-1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.card-2 {
    top: 55%;
    right: 5%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: 15%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* ===== Page Header ===== */
.page-header {
    background: var(--gradient-primary);
    padding: 8rem 0 4rem;
    text-align: center;
    color: white;
    margin-top: 60px;
}

.page-header-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.page-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ===== About Page ===== */
.about-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Mission & Vision */
.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.mv-card {
    padding: 2.5rem;
}

.mv-icon {
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.mv-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

/* Values */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.value-card {
    text-align: center;
    padding: 2rem;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

/* Tech Stack */
.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.tech-category {
    padding: 2rem;
}

.tech-category h4 {
    margin-bottom: 1rem;
    color: var(--primary);
}

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

.tech-tag {
    padding: 0.5rem 1rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.tech-tag:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== Projects Page ===== */
.project-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    padding: 3rem;
}

.project-showcase.reverse {
    direction: rtl;
}

.project-showcase.reverse > * {
    direction: ltr;
}

.project-mockup {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mockup-screen {
    width: 300px;
    height: 600px;
    background: var(--surface);
    border: 8px solid var(--text-primary);
    border-radius: 30px;
    box-shadow: 0 20px 60px var(--shadow-hover);
    overflow: hidden;
}

.mockup-screen.web {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-lg);
    border-width: 4px;
}

.app-preview {
    width: 100%;
    height: 100%;
    background: var(--background);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
}

.app-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.preview-elements {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.preview-box {
    width: 80px;
    height: 80px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
}

.project-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.project-features h4 {
    margin-bottom: 1rem;
}

.project-features ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.project-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.project-features li svg {
    color: var(--primary);
    flex-shrink: 0;
}

.project-tech h4 {
    margin-bottom: 1rem;
}

.project-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.project-actions {
    margin-top: 2rem;
}

/* Coming Soon */
.coming-soon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.coming-soon-card {
    text-align: center;
    padding: 2.5rem;
}

.coming-soon-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.coming-soon-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.progress-indicator {
    width: 100%;
    height: 8px;
    background: var(--surface-secondary);
    border-radius: 50px;
    margin: 1.5rem 0 0.5rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 50px;
    transition: width 1s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Developers Page ===== */
.developer-featured {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    padding: 3rem;
    margin-bottom: 3rem;
}

.developer-avatar-large {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: var(--surface-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid var(--primary);
}

.avatar-placeholder svg {
    width: 80px;
    height: 80px;
    color: var(--text-secondary);
}

.avatar-badge {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--surface);
}

.avatar-badge svg {
    color: white;
}

.developer-name {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.developer-username {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.developer-roles {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.role-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
}

.role-badge.primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.developer-bio {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.developer-skills h4 {
    margin-bottom: 1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.skill-item:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.skill-icon {
    font-size: 1.5rem;
}

.developer-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
    flex: 1;
}

.developer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.developer-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.developer-link:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.developer-social {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-btn {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition);
}

.social-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-4px);
}

/* Join Team */
.join-team-card {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 3rem;
}

.join-icon {
    margin-bottom: 2rem;
    color: var(--primary);
}

.join-team-card h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.join-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.join-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
}

.join-feature svg {
    color: var(--primary);
    flex-shrink: 0;
}

/* ===== Contact Page ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-intro {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.contact-card {
    padding: 2rem;
}

.contact-card-icon {
    color: var(--primary);
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.contact-card a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-card a:hover {
    color: var(--primary);
}

/* Social Links Large */
.social-links-large {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link-lg {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition);
}

.social-link-lg:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateX(4px);
}

/* Contact Form */
.contact-form-container {
    padding: 3rem;
}

.form-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.875rem 1rem;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

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

.form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.form-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.form-note svg {
    flex-shrink: 0;
}

.btn-submit {
    margin-left: auto;
}

.form-success {
    text-align: center;
    padding: 3rem;
}

.success-icon {
    color: #10b981;
    margin-bottom: 1.5rem;
}

.form-success h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-success p {
    color: var(--text-secondary);
}

/* ===== FAQ Section ===== */
.faq-grid {
    display: grid;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    padding: 0;
    overflow: hidden;
    cursor: pointer;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    cursor: pointer;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.125rem;
    margin: 0;
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 2rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.5rem;
}

.faq-answer p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== CTA Section ===== */
.cta {
    background: var(--surface-secondary);
}

.cta-card {
    position: relative;
    overflow: hidden;
    padding: 4rem;
    text-align: center;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-visual {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.cta-circle {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-accent);
    opacity: 0.1;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    right: -100px;
}

.circle-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    right: 100px;
}

.circle-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: -50px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    color: var(--primary);
}

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

.footer-logo {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

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

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

.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.footer-contact svg {
    flex-shrink: 0;
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.875rem;
}

/* ===== Animations ===== */
.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.fade-in-delay {
    animation: fadeIn 0.8s ease-out 0.3s both;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-animate.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .hero-logo-container {
        width: 280px;
        height: 280px;
    }
    
    .hero-logo {
        width: 220px;
        height: 220px;
    }
    
    .ring-1 {
        width: 240px;
        height: 240px;
    }
    
    .ring-2 {
        width: 260px;
        height: 260px;
    }
    
    .ring-3 {
        width: 280px;
        height: 280px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .project-showcase {
        grid-template-columns: 1fr;
    }
    
    .project-showcase.reverse {
        direction: ltr;
    }
    
    .about-main {
        grid-template-columns: 1fr;
    }
    
    .developer-featured {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--acrylic-bg);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        border-bottom: 1px solid var(--acrylic-border);
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        padding: 1rem 2rem;
        width: 100%;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .mission-vision {
        grid-template-columns: 1fr;
    }
    
    .values-grid,
    .tech-categories,
    .coming-soon-grid {
        grid-template-columns: 1fr;
    }
    
    .mockup-screen {
        width: 250px;
        height: 500px;
    }
    
    .project-stats,
    .developer-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links-large {
        grid-template-columns: 1fr;
    }
    
    .form-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .btn-submit {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cta-card {
        padding: 2rem;
    }
    
    .cta-visual {
        display: none;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .hero {
        min-height: auto;
        padding: 6rem 0 3rem;
    }
    
    .hero-visual {
        height: 300px;
    }
    
    .hero-logo-container {
        width: 200px;
        height: 200px;
    }
    
    .hero-logo {
        width: 160px;
        height: 160px;
    }
    
    .ring-1, .ring-2, .ring-3 {
        display: none; /* Rings gizle mobilde */
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .floating-card {
        padding: 1rem;
    }
    
    .card-1 {
        top: 5%;
        left: 2%;
    }
    
    .card-2 {
        top: 50%;
        right: 2%;
    }
    
    .card-3 {
        bottom: 10%;
        left: 5%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .acrylic-card {
        padding: 1.5rem;
    }
    
    .project-showcase {
        padding: 2rem;
    }
    
    .mockup-screen {
        width: 200px;
        height: 400px;
    }
    
    .developer-avatar-large {
        width: 150px;
        height: 150px;
    }
    
    .join-team-card {
        padding: 2rem 1.5rem;
    }
    
    .join-features {
        grid-template-columns: 1fr;
    }
}

/* ===== Print Styles ===== */
@media print {
    .navbar,
    .theme-toggle,
    .mobile-menu-toggle,
    .hero-visual,
    .cta,
    .footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .acrylic-card {
        background: white;
        border: 1px solid #ddd;
    }
}