/* =========================================
   RETINA ATLASI - AYDINLIK TEMA (LIGHT MEDICAL)
   ========================================= */

:root {
    /* Renk Paleti - Aydınlık & Steril */
    --primary: #0284c7;
    /* Medikal Mavi */
    --primary-dark: #0369a1;
    /* Koyu Mavi */
    --accent: #0ea5e9;
    /* Vurgu Mavisi */
    --secondary: #334155;
    /* Koyu Gri (Başlıklar) */

    --bg-body: #f8fafc;
    /* Çok Açık Gri (Göz yormayan zemin) */
    --bg-card: #ffffff;
    /* Beyaz Kartlar */
    --bg-section: #f1f5f9;
    /* Alt Bölüm Zemini */

    --text-main: #334155;
    /* Ana Metin */
    --text-muted: #64748b;
    /* Yardımcı Metin */
    --text-on-primary: #ffffff;

    --border: #e2e8f0;
    /* Hafif Çizgiler */

    /* Efektler */
    --glass-nav: rgba(255, 255, 255, 0.9);
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-card: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);

    --font-serif: 'Cinzel', serif;
    --font-sans: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

/* === LOADER === */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.eye-animation {
    width: 60px;
    height: 60px;
    border: 3px solid var(--primary);
    border-radius: 60% 0;
    transform: rotate(45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: blink 2s infinite ease-in-out;
}

.pupil {
    width: 15px;
    height: 15px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent);
}

.loading-text {
    margin-top: 20px;
    color: var(--secondary);
    font-family: var(--font-serif);
    letter-spacing: 3px;
    font-weight: 600;
}

@keyframes blink {

    0%,
    100% {
        transform: rotate(45deg) scaleY(1);
    }

    50% {
        transform: rotate(45deg) scaleY(0.1);
    }
}

/* === NAVBAR (AYDINLIK) === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: var(--glass-nav);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-soft);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-dark);
    font-size: 1.4rem;
    font-family: var(--font-serif);
    font-weight: 700;
}

.nav-brand i {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.mobile-nav-extras {
    display: none;
    /* Desktop'ta gizle */
}

.nav-links a {
    color: var(--secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* DİL DEĞİŞTİRME (BAYRAKLAR) */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-switch a {
    display: block;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid transparent;
    transition: 0.3s;
    opacity: 0.6;
}

.lang-switch a img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lang-switch a:hover {
    opacity: 1;
    transform: scale(1.1);
}

.lang-switch a.active {
    border-color: var(--primary);
    opacity: 1;
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(2, 132, 199, 0.2);
}

/* İNDİR BUTONU (YENİ) */
.btn-download-primary {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: 0.3s;
    box-shadow: 0 4px 10px rgba(2, 132, 199, 0.2);
}

.btn-download-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(2, 132, 199, 0.3);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--secondary);
    cursor: pointer;
}

/* === HERO SECTION (FERAH & BEYAZ) === */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 5% 60px;
    background: white;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Çok hafif grid pattern */
    background-image:
        linear-gradient(rgba(2, 132, 199, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(2, 132, 199, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
    z-index: 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    z-index: 1;
    align-items: center;
}

.hero-badge {
    background: #f0f9ff;
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 25px;
    border: 1px solid #bae6fd;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--secondary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    font-weight: 400;
    max-width: 90%;
}

.hero-authors-text span {
    display: block;
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 20px rgba(2, 132, 199, 0.2);
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(2, 132, 199, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--secondary);
    padding: 16px 32px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: #f0f9ff;
}

/* === 3D BOOK (AYDINLIK ORTAMDA) === */
.hero-visual {
    perspective: 1000px;
    /* Daha derin 3D etkisi */
    display: flex;
    justify-content: center;
}

.book-container {
    width: 320px;
    /* Eski değer */
    height: 480px;
    /* Eski değer */
    position: relative;
    transform-style: preserve-3d;
    transform: rotateY(-4deg) rotateX(0deg);
    /* NEREDEYSE DÜMDÜZ */
    transition: transform 0.5s;
    user-select: none;
    animation: floatBook 6s ease-in-out infinite;
}

.hero-visual:hover .book-container {
    animation-play-state: paused;
    transform: rotateY(0deg) rotateX(0deg) scale(1.05);
    /* Hover'da tam düz */
}

/* KİTAP SÜZÜLME ANİMASYONU */
@keyframes floatBook {

    0%,
    100% {
        transform: rotateY(-4deg) rotateX(0deg) translateY(0px);
    }

    50% {
        transform: rotateY(-4deg) rotateX(0deg) translateY(-20px);
    }
}

.book {
    width: 100%;
    height: 100%;
    position: absolute;
    transform-style: preserve-3d;
    transform: rotateY(-25deg) rotateX(10deg);
    transition: transform 0.5s;
}

.hero-visual:hover .book {
    transform: rotateY(-15deg) rotateX(5deg) scale(1.05);
}

.book-front {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #0f172a;
    border-radius: 4px 10px 10px 4px;
    overflow: hidden;
    transform: translateZ(20px);
    /* GÜNCELLENDİ */
    box-shadow: 20px 30px 50px rgba(0, 0, 0, 0.3);
}

.book-front img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Kitap Sırtı */
.book-spine {
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 100%;
    background: #1e293b;
    /* Koyu Lacivert */
    transform: rotateY(90deg) translateZ(-20px);
    /* 90 derece döndür ve hafif içeri it */
    transform-origin: left;
    z-index: 1;
    box-shadow: inset 5px 0 10px rgba(0, 0, 0, 0.5);
    /* İç gölge ile hacim */
}

/* Kapağı biraz öne alalım ki sırtla birleşsin */
.book-front {
    transform: translateZ(20px);
}

.book-back {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #0f172a;
    transform: translateZ(-20px) rotateY(180deg);
    /* GÜNCELLENDİ */
    border-radius: 4px;
}

.book-page {
    width: 310px;
    /* Eski değer */
    height: 470px;
    /* Eski değer */
    background: #fff;
    position: absolute;
    top: 5px;
    right: 5px;
    border: 1px solid #e2e8f0;
}

.book-page:nth-child(2) {
    transform: translateZ(22px);
}

.book-page:nth-child(3) {
    transform: translateZ(19px);
}

.book-page:nth-child(4) {
    transform: translateZ(16px);
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

/* === STATS SECTION (BEYAZ) === */
.stats-section {
    padding: 40px 5%;
    background: white;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-soft);
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    font-family: var(--font-sans);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* === CHAPTERS (AÇIK GRİ ZEMİN) === */
.chapters-section {
    padding: 100px 5%;
    background: var(--bg-section);
    text-align: center;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--secondary);
    font-weight: 700;
}

.search-wrapper {
    position: relative;
    width: 300px;
}

.search-wrapper i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-wrapper input {
    width: 100%;
    padding: 12px 12px 12px 45px;
    border-radius: 30px;
    border: 1px solid #cbd5e1;
    outline: none;
    transition: 0.3s;
    background: white;
    color: var(--text-main);
}

.search-wrapper input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.1);
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    text-align: left;
}

.chapter-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.chapter-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.card-number {
    font-size: 4rem;
    font-weight: 900;
    color: #f1f5f9;
    position: absolute;
    top: -10px;
    right: 10px;
    z-index: 0;
    font-family: var(--font-serif);
    transition: 0.3s;
}

.chapter-card:hover .card-number {
    color: #e0f2fe;
    transform: scale(1.1);
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
    line-height: 1.4;
}

.card-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.read-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.chapter-card:hover .read-link {
    color: var(--primary-dark);
    gap: 12px;
}

/* === AUTHORS (BEYAZ) === */
.authors-section {
    padding: 100px 5%;
    background: white;
    border-top: 1px solid var(--border);
}

.authors-wrapper {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.author-card {
    text-align: center;
    width: 350px;
    /* Eski: 300px */
}

.author-avatar {
    width: 300px;
    /* Eski: 180px */
    height: 300px;
    /* Eski: 180px */
    margin: 0 auto 25px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    border: 5px solid var(--bg-section);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.author-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(2, 132, 199, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: 0.3s;
}

.author-card:hover .author-overlay {
    opacity: 1;
}

.author-card:hover img {
    transform: scale(1.1);
}

.btn-cv {
    color: white;
    border: 1px solid white;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 500;
}

.btn-cv:hover {
    background: white;
    color: var(--primary);
}

.author-card h3 {
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 5px;
}

.author-role {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* === MODAL & FOOTER (AYDINLIK) === */
.reader-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    /* FUL BEYAZ */
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
    flex-direction: column;
    opacity: 0;
    transition: opacity 0.3s;
}

.active {
    display: flex !important;
    opacity: 1;
}

.reader-frame {
    width: 100%;
    height: calc(100% - 60px);
    /* Header hariç */
    border: none;
    flex: 1;
}

.modal-header {
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    color: var(--secondary);
    background: transparent;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: bold;
}

.close-reader {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: var(--secondary);
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: 0.3s;
    font-weight: 600;
}

.close-reader:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}

/* === UPDATED FOOTER (UMUT ÇANĞA) === */
.main-footer {
    padding: 30px 5%;
    background: white;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-container {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.developer-credit {
    display: flex;
    align-items: center;
    gap: 20px;
}

.dev-name {
    color: var(--primary);
    font-weight: 700;
}

.footer-socials {
    display: flex;
    gap: 15px;
}

.footer-socials a {
    color: #94a3b8;
    font-size: 1.1rem;
    transition: 0.3s;
}

.footer-socials a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .developer-credit {
        flex-direction: column;
        gap: 10px;
    }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding-top: 40px;
    }

    .hero-content {
        order: 1;
        /* Metin üstte */
    }

    .hero-visual {
        order: 2;
        /* Kitap altta */
        height: 500px;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .hero-visual .book-container {
        transform: scale(0.9) rotateY(-4deg) rotateX(0deg);
        /* Mobilde biraz küçült */
    }

    .hero-overlay {
        background: linear-gradient(to bottom, transparent 0%, rgba(255, 255, 255, 0.8) 50%, #ffffff 100%);
    }

    .hero-subtitle {
        margin: 0 auto 30px;
    }

    .hero-actions {
        justify-content: center;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    /* Mobil Menü Dropdown */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        border-top: 1px solid #f1f5f9;
        animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 90px 20px 40px;
    }

    .hero-title {
        font-size: 2.2rem;
        /* Başlığı küçült */
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-badge {
        font-size: 0.7rem;
        padding: 5px 12px;
    }

    /* İstatistikler ve Bölümler Mobil */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stat-item {
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
        padding: 20px 0;
    }

    .stat-item:last-child {
        border-bottom: none;
    }

    .chapters-grid {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .search-wrapper {
        width: 100%;
    }

    /* Navbar Mobilde */
    .navbar {
        padding: 0 15px;
        justify-content: space-between;
    }

    .nav-brand {
        font-size: 1rem;
    }

    /* Üst Bardaki Öğeleri Gizle (Sadece Hamburger Kalsın) */
    .nav-actions {
        gap: 0;
    }

    .nav-actions .lang-switch,
    .nav-actions .btn-download-primary {
        display: none !important;
    }

    /* Dil Seçici (Bayraklar) - Bu üst bardaki için, ama gizlendiği için önemsiz
       Aşağıdaki kurallar menü içindeki yeni yapı için */

    /* Mobil Menü Butonu */
    .mobile-menu-btn {
        width: 36px;
        height: 36px;
        font-size: 1.2rem;
        display: flex !important;
        align-items: center;
        justify-content: center;
        background: transparent;
        color: var(--text-dark);
        border: 1px solid var(--border);
        border-radius: 8px;
    }

    /* Mobil Menü İçindeki Ekstralar */
    .mobile-nav-extras {
        display: flex;
        flex-direction: column;
        gap: 20px;
        margin-top: 30px;
        padding-top: 20px;
        border-top: 1px solid #f1f5f9;
        width: 100%;
        align-items: center;
    }

    .mobile-lang-switch {
        display: flex;
        gap: 25px;
        justify-content: center;
        width: 100%;
    }

    .mobile-lang-switch a {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.95rem;
        color: var(--text-light);
        padding: 5px 10px;
        border-radius: 12px;
        border: 1px solid transparent;
        transition: 0.2s;
    }

    .mobile-lang-switch a.active {
        color: var(--primary);
        background: #eff6ff;
        border-color: #dbeafe;
        font-weight: 600;
    }

    .btn-mobile-download {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        background: var(--blue);
        color: white;
        padding: 12px 25px;
        border-radius: 50px;
        font-size: 0.95rem;
        text-decoration: none;
        width: auto;
        min-width: 200px;
        box-shadow: 0 4px 10px rgba(14, 165, 233, 0.25);
    }

    .btn-mobile-download:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 15px rgba(14, 165, 233, 0.35);
    }

    /* Modal Mobilde Tam Ekran Gibi Olsun */
    .reader-modal {
        width: 100%;
        height: 100%;
        border-radius: 0;
    }

    .reader-frame {
        height: calc(100% - 50px);
    }

    .modal-header {
        height: 50px;
        padding: 0 15px;
    }
}

@media (max-width: 480px) {

    /* Küçük Telefonlar */
    .hero-visual .book-container {
        transform: scale(0.75) rotateY(-4deg) rotateX(0deg);
    }

    .hero-visual {
        height: 400px;
        /* Yüksekliği azalt */
        margin-top: -20px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .nav-brand span {
        font-size: 1.1rem;
    }

    .nav-brand i {
        font-size: 1.2rem;
    }

    .lang-switch img {
        height: 18px;
    }
}