/* ========================================
   Ordu Tesisat - Ana CSS Dosyası
   Lacivert ve Çelik Grisi Tema
   ======================================== */

/* CSS Değişkenleri */
:root {
    /* Ana Renkler */
    --lacivert: #1a2332;
    --lacivet-acik: #2c3e50;
    --lacivet-koyu: #0f1419;
    --celik-gri: #95a5a6;
    --celik-gri-acik: #bdc3c7;
    --celik-gri-koyu: #7f8c8d;
    
    /* Vurgu Renkleri */
    --birincil-renk: #3498db;
    --birincil-acik: #5dade2;
    --birincil-koyu: #2874a6;
    --ikincil-renk: #e74c3c;
    --ikincil-acik: #ec7063;
    --ikincil-koyu: #cb4335;
    --basarili: #27ae60;
    --uyari: #f39c12;
    
    /* Arka Plan Renkleri */
    --bg-renk: #ffffff;
    --bg-alternatif: #f8f9fa;
    --bg-kart: #ffffff;
    --bg-header: #ffffff;
    --bg-footer: #2c3e50;
    
    /* Metin Renkleri */
    --metin-renk: #2c3e50;
    --metin-acik: #7f8c8d;
    --metin-beyaz: #ffffff;
    --metin-link: #3498db;
    
    /* Gölgeler */
    --golge-hafif: 0 2px 4px rgba(0, 0, 0, 0.1);
    --golge-normal: 0 4px 6px rgba(0, 0, 0, 0.1);
    --golge-koyu: 0 10px 20px rgba(0, 0, 0, 0.15);
    --golge-cok-koyu: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Kenarlıklar */
    --kenarlik: #e1e8ed;
    --kenarlik-koyu: #bdc3c7;
    
    /* Geçişler */
    --gecis-hizi: 0.3s;
    --gecis-easing: ease;
}

/* Dark Mode Değişkenleri */
[data-theme="dark"] {
    --bg-renk: #1a2332;
    --bg-alternatif: #2c3e50;
    --bg-kart: #2c3e50;
    --bg-header: #2c3e50;
    --bg-footer: #0f1419;
    
    --metin-renk: #ffffff;
    --metin-acik: #bdc3c7;
    --metin-beyaz: #ffffff;
    
    --kenarlik: #34495e;
    --kenarlik-koyu: #2c3e50;
}

/* Reset ve Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--metin-renk);
    background-color: var(--bg-renk);
    transition: background-color var(--gecis-hizi) var(--gecis-easing),
                color var(--gecis-hizi) var(--gecis-easing);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Üst Bar */
.ust-bar {
    background-color: var(--lacivet);
    color: var(--metin-beyaz);
    padding: 8px 0;
    font-size: 14px;
}

.ust-bar-icerik {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.iletisim-bilgileri {
    display: flex;
    gap: 20px;
}

.iletisim-bilgileri span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sosyal-medya {
    display: flex;
    gap: 15px;
}

.sosyal-link {
    color: var(--metin-beyaz);
    text-decoration: none;
    transition: color var(--gecis-hizi);
}

.sosyal-link:hover {
    color: var(--birincil-renk);
}

.sosyal-link.whatsapp:hover {
    color: #25d366;
}

/* Header */
.header {
    background-color: var(--bg-header);
    box-shadow: var(--golge-hafif);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color var(--gecis-hizi) var(--gecis-easing);
}

.header-icerik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

/* Logo */
.logo {
    flex-shrink: 0;
}

.logo-img {
    max-height: 50px;
    width: auto;
}

.logo-text {
    display: flex;
    align-items: center;
    font-weight: 900;
    font-size: 28px;
}

.logo-ana {
    color: var(--birincil-renk);
}

.logo-ikincil {
    color: var(--lacivet);
}

.footer-logo-img {
    max-height: 40px;
    width: auto;
}

.footer-logo-text {
    display: flex;
    align-items: center;
    font-weight: 900;
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-logo-ana {
    color: var(--birincil-renk);
}

.footer-logo-ikincil {
    color: var(--metin-beyaz);
}

/* Navigation */
.nav {
    display: none;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--metin-renk);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--gecis-hizi);
    position: relative;
}

.nav-link:hover {
    color: var(--birincil-renk);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--birincil-renk);
    transition: width var(--gecis-hizi);
}

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

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 2px solid var(--kenarlik);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--gecis-hizi);
}

.theme-toggle:hover {
    border-color: var(--birincil-renk);
    transform: rotate(180deg);
}

.theme-icon {
    color: var(--metin-renk);
    font-size: 18px;
    transition: opacity var(--gecis-hizi);
}

[data-theme="dark"] .sun-icon {
    opacity: 1;
}

[data-theme="dark"] .moon-icon {
    opacity: 0;
}

[data-theme="light"] .sun-icon {
    opacity: 0;
}

[data-theme="light"] .moon-icon {
    opacity: 1;
}

/* WhatsApp Button */
.whatsapp-btn {
    background-color: #25d366;
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    transition: all var(--gecis-hizi);
}

.whatsapp-btn:hover {
    background-color: #128c7e;
    transform: translateY(-2px);
    box-shadow: var(--golge-normal);
}

/* Mobile Menu Toggle */
.mobil-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobil-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--metin-renk);
    transition: all var(--gecis-hizi);
}

.mobil-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobil-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobil-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.mobil-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    background-color: var(--bg-kart);
    box-shadow: var(--golge-cok-koyu);
    transition: right var(--gecis-hizi);
    z-index: 1001;
    overflow-y: auto;
}

.mobil-menu.acik {
    right: 0;
}

.mobil-menu-icerik {
    padding: 30px 20px;
}

.mobil-nav-list {
    list-style: none;
    margin-bottom: 30px;
}

.mobil-nav-link {
    display: block;
    color: var(--metin-renk);
    text-decoration: none;
    padding: 15px 0;
    border-bottom: 1px solid var(--kenarlik);
    font-weight: 600;
    transition: color var(--gecis-hizi);
}

.mobil-nav-link:hover {
    color: var(--birincil-renk);
}

.mobil-whatsapp-btn {
    background-color: #25d366;
    color: white;
    text-decoration: none;
    padding: 15px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 600;
    transition: all var(--gecis-hizi);
}

.mobil-whatsapp-btn:hover {
    background-color: #128c7e;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
}

/* Footer */
.footer {
    background-color: var(--bg-footer);
    color: var(--metin-beyaz);
    margin-top: 80px;
}

.footer-ust {
    padding: 60px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-kolon {
    margin-bottom: 30px;
}

.footer-baslik {
    color: var(--metin-beyaz);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-baslik::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--birincil-renk);
}

.footer-linkler {
    list-style: none;
}

.footer-linkler li {
    margin-bottom: 10px;
}

.footer-linkler a {
    color: var(--metin-acik);
    text-decoration: none;
    transition: color var(--gecis-hizi);
}

.footer-linkler a:hover {
    color: var(--birincil-renk);
}

.footer-aciklama {
    color: var(--metin-acik);
    margin-bottom: 20px;
    line-height: 1.8;
}

.iletisim-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: var(--metin-acik);
}

.iletisim-item i {
    color: var(--birincil-renk);
    width: 20px;
}

.calisma-saatleri {
    margin-bottom: 20px;
}

.saat-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    color: var(--metin-acik);
}

.footer-whatsapp-btn {
    background-color: #25d366;
    color: white;
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    transition: all var(--gecis-hizi);
    margin-top: 20px;
}

.footer-whatsapp-btn:hover {
    background-color: #128c7e;
    transform: translateY(-2px);
}

.footer-alt {
    background-color: var(--lacivet-koyu);
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-alt-icerik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.telif-hakki p {
    color: var(--metin-acik);
    margin: 0;
}

.footer-imza {
    color: var(--metin-acik);
}

.footer-imza a {
    color: var(--birincil-renk);
    text-decoration: none;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--birincil-renk);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--gecis-hizi);
    z-index: 999;
}

.back-to-top.goster {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--birincil-koyu);
    transform: translateY(-5px);
}

/* Responsive */
@media (max-width: 992px) {
    .nav {
        display: block;
    }
    
    .mobil-menu-toggle {
        display: none;
    }
    
    .header-actions {
        gap: 20px;
    }
    
    .whatsapp-btn span {
        display: inline;
    }
    
    .hero-baslik {
        font-size: 42px;
    }
    
    .ozellikler-grid,
    .hizmetler-grid,
    .projeler-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ust-bar-icerik {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .iletisim-bilgileri {
        flex-direction: column;
        gap: 5px;
        font-size: 12px;
    }
    
    .header-icerik {
        padding: 10px 0;
    }
    
    .nav {
        display: none;
    }
    
    .mobil-menu-toggle {
        display: flex;
    }
    
    .whatsapp-btn span {
        display: none;
    }
    
    .hero-baslik {
        font-size: 32px;
    }
    
    .hero-alt-baslik {
        font-size: 18px;
    }
    
    .hero-butonlar {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-hero {
        width: 250px;
        justify-content: center;
    }
    
    .bolum-basligi {
        font-size: 28px;
    }
    
    .ozellikler-grid,
    .hizmetler-grid,
    .projeler-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-alt-icerik {
        flex-direction: column;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-baslik {
        font-size: 28px;
    }
    
    .hero-alt-baslik {
        font-size: 16px;
    }
    
    .bolum-basligi {
        font-size: 24px;
    }
    
    .ozellik-kutu,
    .hizmet-karti,
    .proje-karti {
        padding: 20px;
    }
    
    .ozellik-ikon,
    .hizmet-resim,
    .proje-resim {
        height: 60px;
        font-size: 24px;
    }
    
    .ozellik-baslik,
    .hizmet-baslik,
    .proje-baslik {
        font-size: 18px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}