/**
 * Tezgah - Ortak CSS Stilleri
 * Bu dosya tüm sayfalarda kullanılan ortak stilleri içerir
 */

:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #e0f2fe;
    --secondary: #8b5cf6;
    --accent: #f97316;
    --success: #22c55e;
    --bg: #fafbfc;
    --bg-alt: #f1f5f9;
    --surface: #ffffff;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --gradient-1: linear-gradient(135deg, #0ea5e9 0%, #8b5cf6 100%);
    --gradient-2: linear-gradient(135deg, #fdf4ff 0%, #e0f2fe 50%, #f0fdf4 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 60px rgba(14, 165, 233, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* ==================== Navigation ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}

.nav.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.nav-logo img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--gradient-1);
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-btn,
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text);
    cursor: pointer;
}

/* ==================== Mobile Menu ==================== */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--surface);
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text);
    cursor: pointer;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    padding: 24px;
    gap: 8px;
}

.mobile-menu-links a {
    font-size: 18px;
    font-weight: 500;
    color: var(--text);
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.mobile-menu-links .mobile-cta {
    background: var(--gradient-1);
    color: #fff !important;
    text-align: center;
    padding: 14px 24px;
    border-radius: 8px;
    margin-top: 16px;
    border: none;
}

/* ==================== Footer ==================== */
.footer {
    background: var(--text);
    color: #fff;
    padding: 80px 0 40px;
    margin-top: 80px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 40px;
    filter: brightness(0) invert(1);
}

.footer-desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: background 0.2s;
}

.social-link:hover {
    background: var(--primary);
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    font-size: 14px;
    padding: 6px 0;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

/* ==================== Common Components ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

/* ==================== Page Header ==================== */
.page-header {
    background: var(--gradient-1);
    padding: 140px 0 80px;
    text-align: center;
    color: #fff;
}

.page-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== Responsive ==================== */
@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn,
    .mobile-menu-toggle {
        display: block;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: span 2;
        max-width: 100%;
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .page-header {
        padding: 120px 0 60px;
    }
}