/* ========================================
   Dt. Betül Türkhan – Dental Clinic
   Aesthetic: Refined, warm, clinical elegance
   ======================================== */

:root {
    --clr-primary: #292858;
    --clr-primary-dark: #181741;
    --clr-primary-light: #e8f3f1;
    --clr-accent: #5f9cbb;
    --clr-accent-light: #f5ece4;
    --clr-text: #2d2d2d;
    --clr-text-light: #6b6b6b;
    --clr-white: #ffffff;
    --clr-bg: #faf9f7;
    --clr-border: #e5e2dd;
    --clr-dark: #1a1a1a;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Nunito Sans', 'Segoe UI', sans-serif;
    --radius: 24px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--clr-text);
    background: var(--clr-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--clr-border);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow);
}

.header-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo { display: flex; align-items: center; }

.logo-placeholder {
    width: 140px;
    height: 48px;
    background: var(--clr-primary-light);
    border: 2px dashed var(--clr-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 13px;
    color: var(--clr-primary);
    letter-spacing: 2px;
}

.logo-placeholder.small {
    width: 100px;
    height: 36px;
    font-size: 11px;
}

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

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-links a {
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--clr-text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--clr-primary);
    background: var(--clr-primary-light);
}

/* LANG SWITCHER */
.lang-switcher {
    position: relative;
    margin-left: 16px;
}

.lang-current {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--clr-primary);
    color: var(--clr-white);
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
}

.lang-current:hover {
    background: var(--clr-primary-dark);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--clr-white);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition);
    overflow: hidden;
}

.lang-switcher.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown a {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.lang-dropdown a:hover,
.lang-dropdown a.active {
    background: var(--clr-primary-light);
    color: var(--clr-primary);
}

/* MOBILE TOGGLE */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: 8px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--clr-text);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* MOBILE NAV */
.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--clr-white);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
}

.mobile-nav.open {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav ul { display: flex; flex-direction: column; gap: 4px; }

.mobile-nav a {
    display: block;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.mobile-nav a:hover,
.mobile-nav a.active {
    background: var(--clr-primary-light);
    color: var(--clr-primary);
}

.mobile-lang {
    display: flex;
    gap: 8px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--clr-border);
}

.mobile-lang a {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--clr-border);
    transition: var(--transition);
}

.mobile-lang a.active {
    background: var(--clr-primary);
    color: var(--clr-white);
    border-color: var(--clr-primary);
}

/* ========================================
   HERO BANNER
   ======================================== */
.hero-banner {
    position: relative;
    min-height: 75vh;
    display: flex;
    align-items: center;
    margin-top: 80px;
    background:
        linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 60%, #2a7a72 100%);
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(200,149,108,0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    background: linear-gradient(to top, var(--clr-bg), transparent);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--container);
    margin: 0 auto;
    padding: 80px 24px;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--clr-accent);
    margin-bottom: 16px;
    animation: fadeInUp 0.8s ease both;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5.5vw, 4rem);
    font-weight: 700;
    color: var(--clr-white);
    line-height: 1.15;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s 0.15s ease both;
}

.hero-desc {
    font-size: 17px;
    color: rgba(255,255,255,0.8);
    max-width: 500px;
    margin-bottom: 32px;
    line-height: 1.8;
    animation: fadeInUp 0.8s 0.3s ease both;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* BUTTONS */
.btn-primary {
    display: inline-block;
    padding: 16px 36px;
    background: var(--clr-accent);
    color: var(--clr-white);
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 700;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
    animation: fadeInUp 0.8s 0.45s ease both;
}

.btn-primary:hover {
    background: #b8845c;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(200,149,108,0.35);
}

.btn-primary.full-width { width: 100%; text-align: center; }

.btn-secondary {
    display: inline-block;
    font-size: 15px;
    font-weight: 700;
    color: var(--clr-primary);
    padding: 12px 0;
    border-bottom: 2px solid var(--clr-primary);
    transition: var(--transition);
}

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

/* ========================================
   SECTION TAGS & TITLES
   ======================================== */
.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--clr-accent);
    margin-bottom: 12px;
}

.section-tag.center { display: block; text-align: center; }

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--clr-text);
    text-align: center;
    margin-bottom: 56px;
}

/* ========================================
   ABOUT PREVIEW (Homepage)
   ======================================== */
.about-preview {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-accent {
    position: absolute;
    bottom: -16px;
    right: -16px;
    width: 60%;
    height: 60%;
    border: 3px solid var(--clr-accent);
    border-radius: var(--radius);
    z-index: -1;
    opacity: 0.4;
}

.img-placeholder {
    background: linear-gradient(135deg, var(--clr-primary-light) 0%, #dde8e6 100%);
    border: 2px dashed var(--clr-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--clr-text-light);
    letter-spacing: 1px;
}

.img-placeholder.portrait {
    aspect-ratio: 3/4;
}

.img-placeholder.portrait.large {
    aspect-ratio: 3/4;
    max-height: 540px;
}

.about-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--clr-text);
}

.about-text p {
    color: var(--clr-text-light);
    margin-bottom: 16px;
    font-size: 15.5px;
}

.about-text .btn-secondary {
    margin-top: 12px;
}

/* ========================================
   SERVICES
   ======================================== */
.services {
    padding: 100px 0;
    background: var(--clr-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    padding: 40px 32px;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    transition: var(--transition);
    background: var(--clr-white);
}

.service-card:hover {
    border-color: var(--clr-primary);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.service-icon {
    width: 52px;
    height: 52px;
    color: var(--clr-primary);
    margin-bottom: 20px;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--clr-text);
}

.service-card p {
    font-size: 14.5px;
    color: var(--clr-text-light);
    line-height: 1.7;
}

/* ========================================
   PAGE BANNER (Sub-pages)
   ======================================== */
.page-banner {
    position: relative;
    margin-top: 80px;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 100%);
    text-align: center;
    overflow: hidden;
}

.page-banner .hero-overlay {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-banner-content {
    position: relative;
    z-index: 2;
}

.page-banner h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--clr-white);
    margin-bottom: 8px;
}

.page-banner p {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    letter-spacing: 1px;
}

/* ========================================
   ABOUT DETAIL (About page)
   ======================================== */
.about-detail {
    padding: 100px 0;
}

.about-detail-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 64px;
    align-items: start;
}

.about-detail-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 24px;
}

.about-detail-text p {
    color: var(--clr-text-light);
    margin-bottom: 18px;
    font-size: 15.5px;
}

/* MISSION VISION */
.mission-vision {
    padding: 80px 0 100px;
    background: var(--clr-white);
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.mv-card {
    text-align: center;
    padding: 48px 32px;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.mv-card:hover {
    border-color: var(--clr-primary);
    box-shadow: var(--shadow);
}

.mv-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 24px;
    color: var(--clr-accent);
}

.mv-icon svg { width: 100%; height: 100%; }

.mv-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.mv-card p {
    font-size: 14.5px;
    color: var(--clr-text-light);
    line-height: 1.7;
}

/* ========================================
   CONTACT PAGE
   ======================================== */
.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2rem);
    margin-bottom: 32px;
}

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

.contact-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--clr-primary);
    box-shadow: var(--shadow);
}

.contact-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    color: var(--clr-primary);
}

.contact-icon svg { width: 100%; height: 100%; }

.contact-card h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-card p {
    font-size: 14px;
    color: var(--clr-text-light);
    line-height: 1.6;
}

/* CONTACT FORM */
.contact-form-wrap {
    background: var(--clr-white);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--clr-border);
    box-shadow: var(--shadow);
}

.contact-form-wrap h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--clr-text);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--clr-text);
    background: var(--clr-bg);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(26,92,85,0.1);
}

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

/* MAP */
.map-section {
    background: var(--clr-white);
}

.map-placeholder {
    width: 100%;
    height: 360px;
    background: linear-gradient(135deg, var(--clr-primary-light) 0%, #dde8e6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 600;
    color: var(--clr-text-light);
    letter-spacing: 1px;
    border-top: 1px solid var(--clr-border);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    background: var(--clr-dark);
    color: rgba(255,255,255,0.7);
    padding-top: 64px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--clr-white);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.footer-links ul { display: flex; flex-direction: column; gap: 10px; }

.footer-links a {
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-contact p {
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.7;
}

.footer-bottom {
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    text-align: center;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .mv-grid { grid-template-columns: repeat(2, 1fr); }
    .about-detail-grid { grid-template-columns: 1fr; }
    .about-detail-image { max-width: 400px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .lang-switcher { margin-left: auto; }
    .mobile-toggle { display: flex; }
    .mobile-nav { display: block; }

    .header-inner { height: 68px; }
    .hero-banner { margin-top: 68px; min-height: 65vh; }
    .page-banner { margin-top: 68px; padding: 60px 0; }
    .mobile-nav { top: 68px; }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image { max-width: 320px; }

    .services-grid { grid-template-columns: 1fr; }
    .mv-grid { grid-template-columns: 1fr; }

    .contact-grid { grid-template-columns: 1fr; gap: 40px; }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .about-preview { padding: 60px 0; }
    .services { padding: 60px 0; }
    .contact-section { padding: 60px 0; }
    .about-detail { padding: 60px 0; }
    .mission-vision { padding: 60px 0; }
}

@media (max-width: 480px) {
    .hero-content { padding: 48px 20px; }
    .contact-form-wrap { padding: 28px 20px; }
    .service-card { padding: 28px 24px; }
    .mv-card { padding: 32px 24px; }
}