/**
 * Ana Stil Dosyası
 * Diş Hekimi Gülbin Bangi - Kurumsal Web Sitesi
 */

/* ==================== CSS DEĞİŞKENLERİ ==================== */
:root {
    /* Renkler */
    --renk-beyaz: #FFFFFF;
    --renk-acik-gri: #F8F9FA;
    --renk-krem: #FDF8F3;
    --renk-soft-mavi: #4A90B8;
    --renk-soft-mavi-acik: #E8F4FA;
    --renk-soft-mavi-koyu: #3A7A9E;
    --renk-soft-yesil: #6BAB90;
    --renk-soft-yesil-acik: #E8F5EE;
    --renk-altin: #C5A47E;
    --renk-altin-acik: #F5EDE3;
    --renk-koyu-gri: #2D3436;
    --renk-orta-gri: #636E72;
    --renk-acik-border: #E9ECEF;
    --renk-hata: #E74C3C;
    --renk-basari: #27AE60;
    
    /* Tipografi */
    --font-baslik: 'Playfair Display', Georgia, serif;
    --font-govde: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Boyutlar */
    --konteyner-max: 1200px;
    --konteyner-dar: 900px;
    --header-yukseklik: 80px;
    --ust-bant-yukseklik: 40px;
    
    /* Geçişler */
    --gecis-hizli: 0.2s ease;
    --gecis-normal: 0.3s ease;
    --gecis-yavas: 0.5s ease;
    
    /* Gölgeler */
    --golge-kucuk: 0 2px 8px rgba(0, 0, 0, 0.06);
    --golge-orta: 0 4px 20px rgba(0, 0, 0, 0.08);
    --golge-buyuk: 0 8px 40px rgba(0, 0, 0, 0.12);
    --golge-hover: 0 12px 48px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-kucuk: 6px;
    --radius-orta: 12px;
    --radius-buyuk: 20px;
    --radius-yuvarlak: 50%;
}

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

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

body {
    font-family: var(--font-govde);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--renk-koyu-gri);
    background-color: var(--renk-beyaz);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ==================== KONTEYNER ==================== */
.konteyner {
    width: 100%;
    max-width: var(--konteyner-max);
    margin: 0 auto;
    padding: 0 24px;
}

.konteyner-dar {
    max-width: var(--konteyner-dar);
}

/* ==================== TİPOGRAFİ ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-baslik);
    font-weight: 600;
    line-height: 1.3;
    color: var(--renk-koyu-gri);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.4rem, 3vw, 1.8rem); }
h4 { font-size: clamp(1.2rem, 2.5vw, 1.4rem); }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--renk-orta-gri);
}

.baslik-vurgu {
    color: var(--renk-soft-mavi);
}

/* ==================== ÜST BANT ==================== */
.ust-bant {
    background: linear-gradient(135deg, var(--renk-koyu-gri) 0%, #1a1a2e 100%);
    height: var(--ust-bant-yukseklik);
    display: flex;
    align-items: center;
}

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

.ust-bant-sol {
    display: flex;
    align-items: center;
    gap: 16px;
}

.ust-bant-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
    font-weight: 500;
}

.ust-bant-link:hover {
    color: var(--renk-altin);
}

.ust-bant-link i {
    font-size: 0.9rem;
}

.ust-bant-ayirici {
    color: rgba(255, 255, 255, 0.3);
}

.ust-bant-saat {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.ust-bant-sag .whatsapp-link {
    background: rgba(37, 211, 102, 0.15);
    padding: 6px 14px;
    border-radius: var(--radius-kucuk);
}

.ust-bant-sag .whatsapp-link:hover {
    background: rgba(37, 211, 102, 0.25);
    color: #25D366;
}

/* ==================== HEADER ==================== */
.ana-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--renk-beyaz);
    box-shadow: var(--golge-kucuk);
    transition: var(--gecis-normal);
}

.ana-header.scrolled {
    box-shadow: var(--golge-orta);
}

.header-icerik {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-yukseklik);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-ikon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--renk-soft-mavi) 0%, var(--renk-soft-yesil) 100%);
    border-radius: var(--radius-orta);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--renk-beyaz);
    font-size: 1.5rem;
}

.logo-metin {
    display: flex;
    flex-direction: column;
}

.logo-baslik {
    font-family: var(--font-baslik);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--renk-koyu-gri);
    line-height: 1.2;
}

.logo-alt {
    font-size: 0.75rem;
    color: var(--renk-orta-gri);
    letter-spacing: 0.5px;
}

/* Navigasyon */
.ana-nav {
    display: flex;
}

.nav-liste {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--renk-koyu-gri);
    border-radius: var(--radius-kucuk);
    transition: var(--gecis-hizli);
}

.nav-link:hover,
.nav-link.aktif {
    color: var(--renk-soft-mavi);
    background: var(--renk-soft-mavi-acik);
}

.nav-link i {
    font-size: 0.7rem;
    transition: var(--gecis-hizli);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--renk-beyaz);
    border-radius: var(--radius-orta);
    box-shadow: var(--golge-buyuk);
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--gecis-normal);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown:hover .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 0.9rem;
    color: var(--renk-orta-gri);
    transition: var(--gecis-hizli);
}

.dropdown-menu li a:hover {
    color: var(--renk-soft-mavi);
    background: var(--renk-soft-mavi-acik);
    padding-left: 24px;
}

/* Header Sağ */
.header-sag {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-header-cta {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Mobil Menü Butonu */
.mobil-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.hamburger-cizgi {
    width: 24px;
    height: 2px;
    background: var(--renk-koyu-gri);
    border-radius: 2px;
    transition: var(--gecis-normal);
}

.mobil-menu-btn.aktif .hamburger-cizgi:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobil-menu-btn.aktif .hamburger-cizgi:nth-child(2) {
    opacity: 0;
}

.mobil-menu-btn.aktif .hamburger-cizgi:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobil-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--gecis-normal);
    z-index: 999;
}

.mobil-menu-overlay.aktif {
    opacity: 1;
    visibility: visible;
}

/* ==================== FOOTER ==================== */
.ana-footer {
    background: linear-gradient(180deg, var(--renk-koyu-gri) 0%, #1a1a2e 100%);
    color: var(--renk-beyaz);
}

.footer-ust {
    padding: 80px 0 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
    gap: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-ikon {
    background: linear-gradient(135deg, var(--renk-soft-mavi) 0%, var(--renk-soft-yesil) 100%);
}

.footer-logo .logo-baslik {
    color: var(--renk-beyaz);
}

.footer-logo .logo-alt {
    color: rgba(255, 255, 255, 0.6);
}

.footer-aciklama {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.footer-sosyal a {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-yuvarlak);
    font-size: 1.1rem;
    transition: var(--gecis-normal);
}

.footer-sosyal a:hover {
    background: var(--renk-soft-mavi);
    transform: translateY(-3px);
}

.footer-baslik {
    font-family: var(--font-baslik);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--renk-beyaz);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--renk-altin);
    display: inline-block;
}

.footer-linkler li {
    margin-bottom: 12px;
}

.footer-linkler a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--gecis-hizli);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-linkler a::before {
    content: '';
    width: 0;
    height: 2px;
    background: var(--renk-altin);
    transition: var(--gecis-hizli);
}

.footer-linkler a:hover {
    color: var(--renk-beyaz);
    padding-left: 8px;
}

.footer-linkler a:hover::before {
    width: 12px;
}

.footer-iletisim-liste li {
    display: flex;
    gap: 14px;
    margin-bottom: 18px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-iletisim-liste i {
    color: var(--renk-altin);
    width: 18px;
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-iletisim-liste a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-iletisim-liste a:hover {
    color: var(--renk-altin);
}

.calisma-saatleri {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-alt {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
}

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

.footer-copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-alt-linkler {
    display: flex;
    gap: 16px;
    font-size: 0.9rem;
}

.footer-alt-linkler a {
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-alt-linkler span {
    color: rgba(255, 255, 255, 0.3);
}

/* ==================== WHATSAPP SABİT BUTON ==================== */
.whatsapp-sabit {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: var(--radius-yuvarlak);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--renk-beyaz);
    font-size: 1.8rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 998;
    transition: var(--gecis-normal);
}

.whatsapp-sabit:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--renk-koyu-gri);
    color: var(--renk-beyaz);
    padding: 8px 14px;
    border-radius: var(--radius-kucuk);
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--gecis-normal);
}

.whatsapp-sabit:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* ==================== YUKARI ÇIK BUTONU ==================== */
.yukari-cik {
    position: fixed;
    bottom: 24px;
    right: 100px;
    width: 48px;
    height: 48px;
    background: var(--renk-soft-mavi);
    border-radius: var(--radius-yuvarlak);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--renk-beyaz);
    font-size: 1.2rem;
    box-shadow: var(--golge-orta);
    z-index: 997;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--gecis-normal);
}

.yukari-cik.gorunur {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.yukari-cik:hover {
    background: var(--renk-soft-mavi-koyu);
    transform: translateY(-3px);
}

/* ==================== YARDIMCI SINIFLAR ==================== */
.metin-merkez { text-align: center; }
.metin-sol { text-align: left; }
.metin-sag { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}