/* ============================================
   Akzentz Edu — Main Stylesheet
   Based on shop.akzentz.com.tr/kurs12 design
   ============================================ */

:root {
    --black: #111;
    --dark: #1a1a1a;
    --gray: #424242;
    --mid: #a4a4a4;
    --light: #f4f4f4;
    --white: #fff;
    --border: #e0e0e0;
    --accent: #888;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: var(--white); color: var(--black); line-height: 1.7; -webkit-text-size-adjust: 100%; overflow-x: clip; }
a { color: inherit; text-decoration: none; }

/* ─── HERO ─── */
.hero { background: #111; position: relative; overflow: hidden; padding: 80px 0 60px; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, #2a2a2a 0%, transparent 60%); opacity: .6; }
.hero::after { content: ''; position: absolute; bottom: -1px; left: 0; width: 100%; height: 60px; background: var(--white); clip-path: polygon(0 100%, 100% 100%, 100% 0); }
.hero-inner { max-width: 1100px; margin: 0 auto; padding: 0 30px; position: relative; z-index: 1; display: flex; align-items: center; gap: 50px; }
.hero-logo img { height: 54px; filter: brightness(0) invert(1); }
.hero-divider { width: 1px; height: 60px; background: rgba(255,255,255,.3); }
.hero-text h1 { font-size: clamp(24px, 4vw, 40px); color: var(--white); line-height: 1.25; letter-spacing: -.5px; }
.hero-text h1 span { color: #ccc; }
.hero-text p { color: rgba(255,255,255,.65); font-size: 14px; margin-top: 8px; letter-spacing: 2px; text-transform: uppercase; }

/* ─── LANG SWITCHER ─── */
.lang-switcher { margin-left: auto; display: flex; gap: 6px; }
.lang-btn {
    padding: 5px 12px; border-radius: 6px; font-size: 11px; font-weight: 600;
    letter-spacing: 1px; color: rgba(255,255,255,.5);
    border: 1px solid rgba(255,255,255,.15); transition: all .2s;
}
.lang-btn:hover { color: #fff; border-color: rgba(255,255,255,.4); }
.lang-btn.active { color: #fff; background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.3); }

/* ─── MAIN CONTAINER ─── */
.main { max-width: 1100px; margin: 0 auto; padding: 50px 30px 80px; }
.main.main--wide { max-width: none; padding: 0; }

/* ─── BREADCRUMB ─── */
.breadcrumb { border-bottom: 1px solid var(--border); }
.main--wide .breadcrumb { /* same */ }
.breadcrumb-list {
    display: flex; align-items: center; justify-content: center; gap: 0;
    list-style: none; padding: 14px 30px; margin: 0; font-size: 12px;
    font-weight: 500; letter-spacing: .3px; color: var(--mid); flex-wrap: wrap;
}
.breadcrumb-item + .breadcrumb-item::before {
    content: ''; display: inline-block; width: 5px; height: 5px;
    border-top: 1.5px solid var(--mid); border-right: 1.5px solid var(--mid);
    transform: rotate(45deg); margin: 0 14px; vertical-align: middle; opacity: .5;
}
.breadcrumb-item a { color: var(--accent); text-decoration: none; transition: color .2s; }
.breadcrumb-item a:hover { color: var(--black); }
.breadcrumb-item.active { color: var(--black); font-weight: 700; font-size: 13px; }

/* ─── PAGE HEADER ─── */
.page-header { margin-bottom: 36px; }
.page-label {
    display: block; font-size: 10px; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase; color: var(--mid); margin-bottom: 6px;
}
.page-header h1 { font-size: 28px; font-weight: 700; }

/* ─── COURSES GRID (Home) ─── */
.courses-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.course-card {
    border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
    transition: box-shadow .2s; display: flex; flex-direction: column;
}
.course-card:hover { box-shadow: 0 6px 28px rgba(0,0,0,.07); }
.course-card-header { padding: 24px 26px 20px; display: flex; align-items: flex-start; gap: 16px; }
.course-badge {
    min-width: 48px; height: 48px; background: var(--black); color: var(--white);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700; flex-shrink: 0;
}
.course-card-info { flex: 1; min-width: 0; }
.course-title { font-size: 18px; font-weight: 700; line-height: 1.35; margin-bottom: 6px; }
.course-desc { font-size: 13px; color: var(--gray); line-height: 1.55; }

.course-stats {
    display: flex; align-items: center; gap: 20px; padding: 12px 26px;
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    font-size: 12px; color: var(--mid); font-weight: 500;
}
.course-stat { display: inline-flex; align-items: center; gap: 5px; }
.course-stat svg { color: var(--mid); flex-shrink: 0; }

.course-modules { flex: 1; display: flex; flex-direction: column; }
.course-module-item {
    display: flex; align-items: center; gap: 14px; padding: 13px 26px;
    font-size: 13px; color: var(--gray); text-decoration: none;
    border-bottom: 1px solid var(--light); transition: background .15s;
}
.course-module-item:last-child { border-bottom: none; }
.course-module-item:hover { background: var(--light); color: var(--black); }
.course-module-no {
    width: 26px; height: 26px; background: var(--light); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; color: var(--gray); flex-shrink: 0;
}
.course-module-item:hover .course-module-no { background: var(--border); color: var(--black); }
.course-module-title { flex: 1; font-weight: 500; }
.course-module-item svg { color: var(--border); flex-shrink: 0; transition: color .15s; }
.course-module-item:hover svg { color: var(--black); }

.course-card-footer { padding: 18px 26px 22px; }
.btn-start {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; background: var(--black); color: var(--white);
    border-radius: 8px; font-size: 12px; font-weight: 700;
    letter-spacing: .8px; text-transform: uppercase; text-decoration: none;
    transition: opacity .2s;
}
.btn-start:hover { opacity: .8; }
.btn-start span { font-size: 16px; }

/* ─── KURS SHOW ─── */
.kurs-header { margin-bottom: 40px; display: flex; align-items: flex-start; gap: 18px; }
.kurs-badge {
    min-width: 52px; height: 52px; background: var(--black); color: var(--white);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 700; flex-shrink: 0;
}
.kurs-header h1 { font-size: 26px; font-weight: 700; line-height: 1.3; }
.kurs-desc { font-size: 14px; color: var(--gray); margin-top: 6px; }
.modules-grid { display: flex; flex-direction: column; gap: 8px; }
.module-card { display: flex; align-items: center; gap: 18px; padding: 18px 22px; border: 1px solid var(--border); border-radius: 12px; transition: all .2s; }
.module-card:hover { border-color: var(--black); box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.module-number {
    width: 36px; height: 36px; background: var(--light); border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700; color: var(--gray); flex-shrink: 0;
}
.module-info h3 { font-size: 15px; font-weight: 600; line-height: 1.35; }
.module-info p { font-size: 13px; color: var(--mid); margin-top: 2px; }
.read-time { font-size: 11px; color: var(--mid); }

/* ─── SINGLE PAGE COURSE (tek modüllü kurslar) ─── */
.single-content { max-width: 800px; margin: 0 auto; }
.single-header { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 36px; padding-bottom: 28px; border-bottom: 1px solid var(--border); }
.single-header-text { flex: 1; min-width: 0; }
.single-header h1 { font-size: 26px; font-weight: 700; line-height: 1.35; margin-top: 4px; }
.single-desc { font-size: 14px; color: var(--gray); margin-top: 8px; line-height: 1.6; }

/* ─── MOBILE MODULE SELECT (hidden on desktop) ─── */
.mobile-module-select { display: none; }

/* ─── PAGE LAYOUT (sidebar + content, kurs12 style) ─── */
.modul-layout { display: grid; grid-template-columns: 280px 1fr; min-height: 80vh; }

/* ─── SIDEBAR ─── */
.sidebar { background: var(--light); border-right: 1px solid var(--border); padding: 40px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar-title { font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--mid); padding: 0 28px 16px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 0; }
.sidebar-link {
    display: flex; align-items: center; gap: 12px; padding: 12px 28px;
    font-size: 13px; font-weight: 500; color: var(--gray);
    text-decoration: none; border-left: 3px solid transparent; transition: all .18s;
}
.sidebar-link:hover { background: var(--white); color: var(--black); border-left-color: var(--black); }
.sidebar-link.active { background: var(--white); color: var(--black); border-left-color: var(--black); font-weight: 700; }
.sidebar-link .modul-no { width: 26px; height: 26px; background: var(--border); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }
.sidebar-link.active .modul-no, .sidebar-link:hover .modul-no { background: var(--black); color: var(--white); }

/* ─── MODUL CONTENT AREA ─── */
.modul-content { padding: 50px 50px 80px; min-width: 0; overflow: hidden; }
.modul-header { margin-bottom: 32px; }
.modul-subtitle {
    display: inline-block; font-size: 12px; font-weight: 600; color: var(--mid);
    text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 8px;
}
.modul-readtime { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; color: var(--mid); margin-left: 12px; }
.modul-readtime svg { width: 12px; height: 12px; flex-shrink: 0; }
.modul-header h1 { font-size: 24px; font-weight: 700; line-height: 1.35; margin-top: 4px; }

.modul-body { font-size: 14px; line-height: 1.8; color: var(--gray); overflow-wrap: break-word; word-break: break-word; }
.modul-body h2 { font-size: 18px; font-weight: 700; color: var(--black); margin: 32px 0 12px; }
.modul-body h3 { font-size: 15px; font-weight: 700; color: var(--black); margin: 24px 0 10px; }
.modul-body p { margin-bottom: 14px; }
.modul-body ul, .modul-body ol { margin: 0 0 14px 20px; }
.modul-body li { margin-bottom: 4px; }
.modul-body img { max-width: 100%; border-radius: 8px; margin: 16px 0; }
.modul-body table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 13px; }
.modul-body th, .modul-body td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
.modul-body th { background: var(--dark); color: var(--white); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; }

/* Hide redundant module-header from DB content */
.modul-body .module-header { display: none; }
.modul-body .module-section { margin-bottom: 0; scroll-margin-top: 80px; }

/* ─── MODULE NAV BAR (prev/dots/next — shop style) ─── */
.module-nav-bar { background: var(--light); border-top: 1px solid var(--border); }
.module-nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 30px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 72px; gap: 12px; }
.module-nav-btn { display: flex; align-items: center; gap: 12px; padding: 16px 0; text-decoration: none; color: var(--black); transition: opacity .2s; }
.module-nav-btn:hover { opacity: .65; }
.module-nav-btn svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--mid); }
.module-nav-btn span { display: flex; flex-direction: column; gap: 2px; line-height: 1.3; }
.module-nav-btn small { font-size: 10px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase; color: var(--mid); }
.module-nav-btn strong { font-size: 13px; font-weight: 700; }
.module-nav-next { justify-content: flex-end; text-align: right; }
.module-nav-dots { display: flex; align-items: center; gap: 6px; justify-content: center; }
.module-nav-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--border); transition: background .2s, transform .2s; flex-shrink: 0; text-decoration: none; }
.module-nav-dot.active { background: var(--black); transform: scale(1.4); }

/* ─── CONTENT STYLES (kurs12 content) ─── */
.section-title { font-size: 15px; font-weight: 700; color: var(--black); margin: 32px 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--border); }
.subsection-title { font-size: 14px; font-weight: 700; color: var(--black); margin: 22px 0 10px; }

.info-box    { background: #f7f7f7; border: 1px solid #ddd; border-left: 4px solid var(--black); border-radius: 6px; padding: 18px 22px; margin-bottom: 20px; font-size: 14px; color: var(--dark); }
.warning-box { background: #fffbf0; border: 1px solid #f0e0a0; border-left: 4px solid #d4a800; border-radius: 6px; padding: 18px 22px; margin-bottom: 20px; font-size: 14px; color: var(--dark); }
.danger-box  { background: #fff5f5; border: 1px solid #f5c0c0; border-left: 4px solid #c0392b; border-radius: 6px; padding: 18px 22px; margin-bottom: 20px; font-size: 14px; color: var(--dark); }
.safe-box    { background: #f0fff4; border: 1px solid #b2e6c6; border-left: 4px solid #27ae60; border-radius: 6px; padding: 18px 22px; margin-bottom: 20px; font-size: 14px; color: var(--dark); }

.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card { background: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: 20px 18px; transition: all .2s; position: relative; overflow: hidden; }
.card::before { content: ''; position: absolute; top: 0; left: 0; width: 3px; height: 100%; background: var(--black); transform: scaleY(0); transition: transform .2s; }
.card:hover { box-shadow: 0 6px 24px rgba(0,0,0,.09); transform: translateY(-2px); }
.card:hover::before { transform: scaleY(1); }
.card-num { width: 30px; height: 30px; background: var(--black); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; margin-bottom: 10px; }
.card h3 { font-size: 13px; font-weight: 700; color: var(--black); margin-bottom: 6px; }
.card p { font-size: 13px; color: var(--gray); line-height: 1.6; }
.card-tag { display: inline-block; background: #f0f0f0; color: #555; font-size: 10px; font-weight: 700; letter-spacing: 1px; padding: 2px 8px; border-radius: 20px; margin-bottom: 8px; text-transform: uppercase; }

.product-card { background: var(--white); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 18px; overflow: hidden; max-width: 100%; }
.product-card-head { background: #111; color: #fff; padding: 13px 20px; font-size: 13px; font-weight: 700; letter-spacing: .5px; display: flex; align-items: center; gap: 10px; }
.product-card-head code { background: rgba(255,255,255,.15); font-family: 'JetBrains Mono', monospace; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.product-card-body { padding: 16px 20px; font-size: 13px; color: var(--gray); line-height: 1.8; }
.product-card-body ul { margin-left: 18px; }
.product-card-body li { margin-bottom: 4px; }

.edu-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 24px; }
.edu-table thead th { background: var(--dark); color: var(--white); padding: 11px 14px; text-align: left; font-weight: 600; }
.edu-table thead th:first-child { border-radius: 6px 0 0 0; }
.edu-table thead th:last-child { border-radius: 0 6px 0 0; }
.edu-table tbody tr:nth-child(even) td { background: var(--light); }
.edu-table tbody td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--gray); vertical-align: top; }
.edu-table tbody td strong { color: var(--black); }

.step-list { list-style: none; margin-bottom: 24px; }
.step-list li { display: flex; gap: 14px; padding: 13px 0; border-bottom: 1px dashed var(--border); font-size: 14px; color: var(--gray); line-height: 1.6; }
.step-list li:last-child { border-bottom: none; }
.step-num { width: 26px; height: 26px; background: var(--black); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; margin-top: 2px; }

.cause-block { margin-bottom: 24px; }
.cause-list { list-style: none; }
.cause-list li { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; border-bottom: 1px dashed #e0e0e0; font-size: 13px; color: #555; }
.cause-list li svg { flex-shrink: 0; margin-top: 3px; }

.nail-type-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; padding: 3px 11px; border-radius: 20px; margin: 2px; }
.badge-dry   { background: #fff3e0; color: #8a4400; border: 1px solid #f0c060; }
.badge-good  { background: #e8f5e9; color: #1b5e20; border: 1px solid #a5d6a7; }
.badge-oily  { background: #f3e5f5; color: #4a0072; border: 1px solid #ce93d8; }
.badge-all   { background: #e3f2fd; color: #0d47a1; border: 1px solid #90caf9; }

.edu-term { position: relative; border-bottom: 1px dotted #aaa; cursor: help; display: inline; }
.edu-term::after { content: '\00a0\2139'; font-size: 10px; color: var(--accent); vertical-align: super; line-height: 0; }
.edu-term .tip-box { display: none; position: absolute; bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%); background: #1c1c1c; color: #f0f0f0; border-radius: 10px; padding: 11px 15px; font-size: 12.5px; line-height: 1.65; width: 260px; text-align: left; white-space: normal; z-index: 5000; box-shadow: 0 6px 24px rgba(0,0,0,.4); pointer-events: none; }
.edu-term .tip-box::after { content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%); border: 6px solid transparent; border-top-color: #1c1c1c; }
.edu-term:hover .tip-box, .edu-term.tip-open .tip-box { display: block; }

.color-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.color-chip { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-family: 'JetBrains Mono', monospace; padding: 4px 10px; background: #f4f4f4; border: 1px solid #ddd; border-radius: 4px; }

.lang-notice { background: #fff8e1; border: 1px solid #ffe082; border-radius: 8px; padding: 12px 18px; font-size: 13px; color: #795548; margin-bottom: 20px; }

/* ─── ERROR PAGE ─── */
.error-page { text-align: center; padding: 80px 0; }
.error-page h1 { font-size: 72px; font-weight: 700; color: var(--border); }
.error-page p { color: var(--mid); margin-top: 12px; }
.error-page a { display: inline-block; margin-top: 24px; padding: 10px 24px; background: var(--black); color: #fff; border-radius: 8px; font-size: 13px; font-weight: 600; }

/* ─── FOOTER ─── */
.edu-footer { background: var(--dark); color: rgba(255,255,255,.5); padding: 32px 30px; text-align: center; font-size: 13px; }

/* ─── SCROLL TO TOP ─── */
.scroll-top {
    display: none; position: fixed; bottom: 30px; right: 30px;
    width: 40px; height: 40px; background: var(--black); color: #fff;
    border-radius: 50%; border: none; cursor: pointer;
    align-items: center; justify-content: center; font-size: 18px;
    z-index: 100; transition: opacity .2s;
}
.scroll-top.visible { display: flex; }
.scroll-top:hover { opacity: .8; }

/* ─── RESPONSIVE — TABLET ─── */
@media (max-width: 900px) {
    /* Hero */
    .hero { padding: 40px 0 30px; }
    .hero::after { height: 30px; }
    .hero-inner { flex-wrap: wrap; gap: 16px; padding: 0 20px; }
    .hero-divider, .hero-logo { display: none; }
    .hero-text p { font-size: 12px; letter-spacing: 1.5px; }

    /* Lang switcher */
    .lang-switcher { margin-left: auto; }

    /* Main */
    .main { padding: 30px 20px 50px; }

    /* Breadcrumb */
    .breadcrumb-list { padding: 12px 20px; justify-content: flex-start; }
    .breadcrumb-item + .breadcrumb-item::before { margin: 0 10px; }

    /* Home: kurs kartları */
    .courses-grid { grid-template-columns: 1fr; gap: 16px; }
    .course-card-header { padding: 18px 20px 16px; gap: 12px; }
    .course-badge { min-width: 42px; height: 42px; font-size: 11px; border-radius: 10px; }
    .course-title { font-size: 16px; }
    .course-desc { font-size: 12px; }
    .course-stats { padding: 10px 20px; gap: 14px; }
    .course-module-item { padding: 11px 20px; gap: 12px; }
    .course-card-footer { padding: 16px 20px 18px; }

    /* Kurs show */
    .kurs-header { flex-direction: column; gap: 12px; margin-bottom: 28px; }
    .kurs-badge { min-width: 44px; height: 44px; }
    .kurs-header h1 { font-size: 22px; }
    .module-card { padding: 14px 16px; gap: 14px; }
    .module-number { width: 32px; height: 32px; font-size: 12px; }
    .module-info h3 { font-size: 14px; }

    /* Single page course */
    .single-header { flex-direction: column; gap: 12px; margin-bottom: 24px; padding-bottom: 20px; }
    .single-header h1 { font-size: 22px; }

    /* Modul layout: sidebar gizle, select göster */
    .modul-layout { grid-template-columns: 1fr; }
    .sidebar { display: none; }

    .mobile-module-select {
        display: flex; align-items: center; gap: 10px;
        padding: 10px 20px; background: var(--white);
        border-bottom: 1px solid var(--border);
        transition: box-shadow .2s;
    }
    .mobile-module-select.sticky {
        position: fixed; top: 0; left: 0; right: 0; z-index: 200;
        box-shadow: 0 2px 12px rgba(0,0,0,.1);
    }
    .mobile-module-select label {
        font-size: 9px; font-weight: 700; letter-spacing: 1.5px;
        text-transform: uppercase; color: var(--mid); white-space: nowrap; flex-shrink: 0;
    }
    .mobile-module-select select {
        flex: 1; appearance: none; -webkit-appearance: none;
        background: var(--light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23424242' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right 12px center;
        border: 1px solid var(--border); border-radius: 8px;
        padding: 10px 36px 10px 14px; font-size: 13px; font-weight: 600;
        font-family: inherit; color: var(--black); cursor: pointer;
    }
    .mobile-module-select select:focus { outline: none; border-color: var(--black); }

    /* Modul content */
    .modul-content { padding: 24px 20px 50px; }
    .modul-header h1 { font-size: 20px; }

    /* Module nav bar */
    .module-nav-inner { padding: 0 16px; min-height: 60px; gap: 8px; }
    .module-nav-btn strong { font-size: 12px; }

    /* Content styles */
    .info-box, .warning-box, .danger-box, .safe-box { padding: 14px 16px; font-size: 13px; }
    .product-card-head { padding: 11px 16px; font-size: 12px; }
    .product-card-body { padding: 14px 16px; font-size: 12px; }
    .cards-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
    .card { padding: 16px 14px; }

    /* Footer */
    .edu-footer { padding: 24px 20px; font-size: 12px; }
}

/* ─── RESPONSIVE — MOBILE ─── */
@media (max-width: 600px) {
    /* Hero — compact */
    .hero { padding: 28px 0 22px; }
    .hero::after { height: 20px; }
    .hero-inner { gap: 10px; padding: 0 16px; }
    .hero-text h1 { font-size: 20px; }
    .hero-text p { font-size: 10px; margin-top: 4px; }
    .lang-switcher { gap: 4px; }
    .lang-btn { padding: 4px 10px; font-size: 10px; }

    /* Breadcrumb */
    .breadcrumb-list { padding: 10px 16px; font-size: 11px; }
    .breadcrumb-item + .breadcrumb-item::before { margin: 0 8px; width: 4px; height: 4px; }
    .breadcrumb-item.active { font-size: 11px; }

    /* Main */
    .main { padding: 20px 16px 40px; }

    /* Home: kurs kartları */
    .page-header h1 { font-size: 22px; }
    .course-card-header { padding: 16px 16px 14px; gap: 10px; }
    .course-badge { min-width: 38px; height: 38px; font-size: 10px; border-radius: 8px; }
    .course-title { font-size: 15px; }
    .course-stats { padding: 10px 16px; font-size: 11px; gap: 12px; }
    .course-module-item { padding: 10px 16px; font-size: 12px; gap: 10px; }
    .course-module-no { width: 22px; height: 22px; font-size: 10px; }
    .course-card-footer { padding: 14px 16px 18px; }
    .btn-start { padding: 10px 22px; font-size: 11px; }

    /* Kurs show */
    .kurs-badge { min-width: 40px; height: 40px; font-size: 12px; border-radius: 10px; }
    .kurs-header h1 { font-size: 19px; }
    .kurs-desc { font-size: 13px; }
    .module-card { padding: 12px 14px; gap: 12px; border-radius: 10px; }
    .module-number { width: 30px; height: 30px; font-size: 11px; border-radius: 6px; }
    .module-info h3 { font-size: 13px; }
    .module-info p { font-size: 12px; }

    /* Single page course */
    .single-header h1 { font-size: 19px; }
    .single-desc { font-size: 13px; }

    /* Mobile module select */
    .mobile-module-select { padding: 8px 16px; gap: 8px; }
    .mobile-module-select label { font-size: 8px; letter-spacing: 1px; }
    .mobile-module-select select { padding: 9px 32px 9px 12px; font-size: 12px; }

    /* Modul content */
    .modul-content { padding: 20px 16px 40px; }
    .modul-header { margin-bottom: 20px; }
    .modul-header h1 { font-size: 18px; }
    .modul-subtitle { font-size: 10px; letter-spacing: 1px; }
    .modul-body { font-size: 13px; line-height: 1.75; }
    .modul-body h2 { font-size: 16px; margin: 24px 0 10px; }
    .modul-body h3 { font-size: 14px; margin: 18px 0 8px; }
    .modul-body table { font-size: 11px; display: block; overflow-x: auto; }
    .modul-body th, .modul-body td { padding: 8px 10px; white-space: nowrap; }

    /* Content boxes */
    .info-box, .warning-box, .danger-box, .safe-box { padding: 12px 14px; font-size: 12px; border-radius: 4px; }
    .product-card-head { padding: 10px 14px; font-size: 11px; }
    .product-card-body { padding: 12px 14px; font-size: 12px; }
    .cards-grid { grid-template-columns: 1fr !important; gap: 10px; }
    .card { padding: 14px 12px; }
    .card h3 { font-size: 12px; }
    .card p { font-size: 12px; }
    .step-list li { font-size: 13px; gap: 10px; }

    /* Tables */
    .edu-table { font-size: 11px; display: block; overflow-x: auto; }
    .edu-table thead th, .edu-table tbody td { padding: 8px 10px; white-space: nowrap; }

    /* Module nav bar */
    .module-nav-inner { grid-template-columns: 1fr 1fr; padding: 0 14px; min-height: 56px; }
    .module-nav-dots { display: none; }
    .module-nav-btn { gap: 8px; }
    .module-nav-btn svg { width: 16px; height: 16px; }
    .module-nav-btn small { font-size: 9px; }
    .module-nav-btn strong { font-size: 11px; }

    /* Tooltip — mobilde tam genişlik */
    .edu-term .tip-box { width: 220px; font-size: 11px; padding: 9px 12px; }

    /* Footer */
    .edu-footer { padding: 20px 16px; font-size: 11px; }

    /* Error page */
    .error-page { padding: 50px 0; }
    .error-page h1 { font-size: 48px; }

    /* Scroll top — mobilde küçült */
    .scroll-top { width: 36px; height: 36px; bottom: 20px; right: 16px; font-size: 16px; }
}