/* ==========================================================================
   DersTeders - Global Responsive Katmani (responsive.css)
   --------------------------------------------------------------------------
   Tum sayfalarda EN SON yuklenir. Mevcut tasarimi bozmadan telefon (<=480px)
   ve tablet (<=1024px) icin duzeltmeler uygular:
     1) Yatay kaydirma (overflow-x) engeli
     2) Dokunmatik hedef boyutlari (min 44px)
     3) Tipografi / bosluk olcekleyeme
     4) Tablo, form, gorsel, canvas, kod bloklari
     5) Sayfa bazli hedefli duzeltmeler (header, sidebar, simulator)
   ========================================================================== */

/* 0) TEMEL GUVENLIK AGI */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
/* overflow:clip sticky/fixed header'i bozmaz; desteklemeyenlerde hidden kullanilir */
html, body { overflow-x: hidden; }
@supports (overflow: clip) {
    html, body { overflow-x: clip; }
}
body { -webkit-overflow-scrolling: touch; }
/* Gorseller tasmasin; canvas/iframe kendi kapsayicisinda ele alinir */
img, svg, video, embed, object { max-width: 100%; height: auto; }
h1, h2, h3, h4, h5, h6, p, li, td, th, a, span, strong, em, label, figcaption {
    overflow-wrap: break-word; word-wrap: break-word;
}
a, button, [role="button"], input[type="submit"], input[type="button"], .nav-link, .tab-btn {
    touch-action: manipulation;
}
@media (max-width: 768px) {
    input:not([type="checkbox"]):not([type="radio"]), select, textarea { font-size: 16px !important; }
}

/* 1) TABLOLAR - mobilde yatay kaydirilabilir */
@media (max-width: 768px) {
    table {
        display: block; width: 100%; max-width: 100%;
        overflow-x: auto; -webkit-overflow-scrolling: touch; border-collapse: collapse;
    }
    .table-wrap, .table-container, .table-responsive, .data-table {
        display: block; width: 100%; max-width: 100%;
        overflow-x: auto; -webkit-overflow-scrolling: touch;
    }
    table th, table td { white-space: nowrap; }
}

/* 2) KOD BLOKLARI */
pre { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
code { word-break: break-word; }

/* 3) FORM ELEMANLARI - mobilde tam genislik + dokunmatik */
@media (max-width: 768px) {
    form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
    form select, form textarea { width: 100%; max-width: 100%; box-sizing: border-box; }
    button, .btn, .btn-sm, .nav-link, a.btn-login, a.btn-register, .btn-login, .btn-register { min-height: 44px; }
}

/* 4) BOSLUK / TIPOGRAFI
   Yalnizca icerik kapsayicilarina dokunulur; .section padding'i 0 oldugu icin
   burada tekrar padding eklenmez (cift bosluk olusmaz). */
@media (max-width: 768px) {
    .wrap, .container, .header-inner, .header-content, .main-container {
        padding-left: 16px; padding-right: 16px; max-width: 100%;
    }
}
@media (max-width: 480px) {
    .wrap, .container, .header-inner, .header-content, .main-container {
        padding-left: 12px; padding-right: 12px;
    }
}

/* 5) HEADER / NAV - mobilde katlanmis menu
   Sadece responsive-nav.js hamburger eklediginde (.dt-has-mobile-nav) gizle,
   boylece kendi menusu olan sayfalar (index, sinav) etkilenmez. */
@media (max-width: 900px) {
    .dt-has-mobile-nav .nav, .dt-has-mobile-nav .nav-links, .dt-has-mobile-nav .header-nav { display: none !important; }
}
.dt-mobile-nav {
    display: none; position: fixed; top: 64px; left: 0; right: 0;
    background: var(--surface, #fff); border-bottom: 1px solid var(--border, #e5e7eb);
    box-shadow: 0 12px 30px rgba(0,0,0,0.12); padding: 12px 16px 18px;
    z-index: 998; flex-direction: column; gap: 4px;
    max-height: calc(100vh - 64px); overflow-y: auto; -webkit-overflow-scrolling: touch;
}
.dt-mobile-nav.open { display: flex; }
.dt-mobile-nav a {
    display: flex; align-items: center; min-height: 48px; padding: 12px 16px;
    border-radius: 10px; font-size: 1rem; font-weight: 500;
    color: var(--ink-2, var(--text-secondary, #374151)); text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
}
.dt-mobile-nav a:hover, .dt-mobile-nav a.active {
    color: var(--accent, #0F6B7C); background: var(--accent-light, rgba(15,107,124,0.08));
}

/* Mobil menude giris/kayit ve kullanici alani */
.dt-mobile-auth {
    display: none;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
    padding-top: 14px;
    border-top: 1px solid var(--border, #e5e7eb);
}
.dt-mobile-auth #auth-buttons,
.dt-mobile-auth .auth-buttons {
    flex-direction: column;
    gap: 8px;
    width: 100%;
}
.dt-mobile-auth #auth-buttons a,
.dt-mobile-auth .auth-buttons a,
.dt-mobile-auth .btn-login,
.dt-mobile-auth .btn-register {
    width: 100%;
    min-height: 46px;
    justify-content: center;
}
.dt-mobile-auth #user-menu,
.dt-mobile-auth .user-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
}
.dt-mobile-auth .user-menu .user-name {
    padding: 4px 2px 8px;
    white-space: normal;
}
.dt-mobile-auth .user-menu a,
.dt-mobile-auth .user-menu .btn-logout {
    width: 100%;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.dt-nav-toggle {
    display: none; flex-direction: column; align-items: center; justify-content: center;
    gap: 5px; width: 44px; height: 44px; padding: 0;
    border: 1px solid var(--border, #e5e7eb); border-radius: 10px;
    background: transparent; cursor: pointer; flex-shrink: 0;
}
.dt-nav-toggle span {
    display: block; width: 20px; height: 2px; border-radius: 2px;
    /* koyu temada da gorunsun: once tema metin rengi */
    background: var(--text, var(--ink, #111827));
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.dt-nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.dt-nav-toggle.open span:nth-child(2) { opacity: 0; }
.dt-nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 900px) { .dt-nav-toggle { display: flex; } }

/* 6) SIDEBAR */
@media (max-width: 768px) {
    .sidebar, .sim-library, .sim-right, .bb-library, .bb-right { max-width: 100%; }
    .admin-sidebar-toggle {
        display: inline-flex; align-items: center; justify-content: center;
        width: 44px; height: 44px; border: 1px solid var(--border, #e5e7eb);
        border-radius: 10px; background: transparent; cursor: pointer; font-size: 1.2rem;
    }
    .admin-sidebar-overlay {
        display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 99;
    }
    .admin-sidebar-overlay.open { display: block; }
}

/* 7) SIMULATOR / CANVAS */
@media (max-width: 900px) {
    .sim-app, .bb-app, .app-container, .editor-area { max-width: 100%; overflow-x: hidden; }
    .canvas-wrap, .sim-canvas-area, .canvas-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}
@media (max-width: 768px) {
    .sim-topbar, .bb-topbar, .toolbar, .editor-toolbar { flex-wrap: wrap; gap: 6px; }
    .sim-actions, .bb-actions { flex-wrap: wrap; gap: 4px; }
    .tool-btn, .sim-btn, .bb-btn, .canvas-control-btn { min-width: 40px; min-height: 40px; }
}

/* 8) KART / GRID - mobilde tek sutun */
@media (max-width: 600px) {
    .courses-grid, .features-grid, .quiz-grid, .meslek-grid, .sinav-grid, .sim-grid,
    .stats-grid, .badges-grid, .settings-grid, .system-grid, .detailed-stats-grid,
    .v-chart-grid, .modal-grid, .export-grid, .form-row, .subjects-grid,
    .strategies-grid, .calendar-grid, .practice-select, .quick-questions,
    .comparison-box { grid-template-columns: 1fr !important; }
}

/* 9) HOVER YERINE TAP UYUMU */
@media (hover: none) and (pointer: coarse) {
    .course-card:hover, .feature-card:hover { transform: none; }
    .course-card:active, .feature-card:active, .nav-link:active, .tab-btn:active { transform: scale(0.99); }
}

/* 10) YARDIMCI SINIFLAR */
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }
@media (max-width: 480px) { .hide-mobile { display: none !important; } }
@media (min-width: 481px) { .show-mobile-only { display: none !important; } }

/* ==========================================================================
   12) SAYFAYA OZEL HEDEFLI DUZELTMELER
   ========================================================================== */

/* --- Giris / Kayit (kayit.html .auth-right sabit 520px) --- */
@media (max-width: 860px) {
    .auth-right { width: 100% !important; max-width: 100%; }
}
@media (max-width: 480px) {
    .auth-right { padding: 24px 16px !important; }
    .auth-left { min-height: 160px; padding: 28px 20px; }
}

/* --- Breadboard simulasyon (#board min-width:900px) --- */
@media (max-width: 900px) {
    #board { min-width: 100% !important; width: 100% !important; }
    .board-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* --- Konu sayfasi (konu.html) - temel yerlesim + mobil katlanmis sidebar ---
   Bu siniflar yalnizca konu.html'de bulunur; .page-wrapper ile kapsamlanir. */
.page-wrapper {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 32px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 24px;
    align-items: start;
}
.page-wrapper .sidebar {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    background: var(--surface, #fff);
    border: 1px solid var(--border, #e5e7eb);
    border-radius: 14px;
    padding: 12px;
}
.page-wrapper .content-area {
    min-width: 0;
    max-width: 100%;
}
.page-wrapper .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: var(--muted, #6b7280);
}
.page-wrapper .topic-content { max-width: 100%; }
.page-wrapper .topic-content img,
.page-wrapper .topic-content svg { max-width: 100%; height: auto; }
.page-wrapper .topic-content pre { overflow-x: auto; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
}
.sidebar-overlay.active { display: block; }

@media (max-width: 900px) {
    .page-wrapper {
        display: block;
        padding: 16px;
    }
    .page-wrapper .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(84vw, 320px);
        max-height: 100vh;
        border-radius: 0;
        z-index: 999;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    .page-wrapper .sidebar.open { transform: translateX(0); }
    .content-area { width: 100%; max-width: 100%; }
    .breadcrumb { flex-wrap: wrap; gap: 6px; }
    .topic-nav { flex-direction: column; gap: 10px; }
    .topic-nav-link { width: 100%; }
}

/* --- Ogretmen asistani - sohbet duzeni mobilde tek sutun --- */
@media (max-width: 768px) {
    .chat-layout { grid-template-columns: 1fr !important; }
    .chat-page { padding: 20px 12px; }
}

/* --- Admin panel - tablolar ve toolbar --- */
@media (max-width: 768px) {
    .data-table { display: block; width: 100%; overflow-x: auto; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar input, .toolbar select { width: 100%; min-width: 0; }
}

/* --- Profil sayfasi - header ve istatistikler --- */
@media (max-width: 768px) {
    .header-content { padding: 0.85rem 1rem; flex-wrap: wrap; gap: 0.75rem; }
    .main-container { padding: 1rem; }
    .xp-body { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr !important; }
    .profile-meta { flex-direction: column; align-items: center; }
}

/* --- Simulator canvas alanlari mobilde dikey yerlesim --- */
@media (max-width: 900px) {
    .sim-main { flex-direction: column; }
    .sim-canvas-area { min-height: 320px; }
    .bb-app { flex-direction: column; }
}

/* --- Ders sayfalari - tablo ve uzun icerik --- */
@media (max-width: 768px) {
    .unit-accordion table, .topic-content table, .lesson-content table {
        display: block; overflow-x: auto; -webkit-overflow-scrolling: touch;
    }
}

/* --- Genel butonlar mobilde dokunmatik --- */
@media (max-width: 768px) {
    .btn-primary, .btn-outline, .btn-test, .card-link, .topic-nav-link {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}

/* --- Tablet (768-1024) ara ayarlar --- */
@media (min-width: 769px) and (max-width: 1024px) {
    .container, .wrap { padding-left: 24px; padding-right: 24px; }
    .hero-title { font-size: clamp(2rem, 5vw, 2.75rem); }
}

/* --- index.html navbar tablet/mobil sikismasi --- */
@media (max-width: 1100px) {
    .navbar-inner { gap: 14px; }
    .nav-links { gap: 0; }
    .nav-link { padding: 6px 9px; font-size: 0.82rem; }
    .search-box { width: 160px; }
    .search-box:focus-within { width: 190px; }
}
@media (max-width: 900px) {
    .search-box { display: none; }
}

/* --- Header aksiyon alani: her zaman yatay hizali --- */
.header-actions, .header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- Sekme seritleri yatay kaydirilabilir --- */
.tabs-container, .machine-tabs, .panel-tabs, .right-tabs,
.tab-bar, .tabs, .segmented, .view-modes {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.tabs-container::-webkit-scrollbar, .machine-tabs::-webkit-scrollbar,
.panel-tabs::-webkit-scrollbar, .right-tabs::-webkit-scrollbar,
.tab-bar::-webkit-scrollbar, .tabs::-webkit-scrollbar,
.segmented::-webkit-scrollbar, .view-modes::-webkit-scrollbar {
    display: none;
}

/* --- Durum cubuklari (status bar) mobilde yatay kaydirilsin ---
   flex-wrap kullanilmaz; aksi halde sabit yukseklikte ogeler ust uste biner. */
@media (max-width: 768px) {
    .bb-status, .status-bar, .sim-status-bar, .statusbar {
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .bb-status::-webkit-scrollbar, .status-bar::-webkit-scrollbar,
    .sim-status-bar::-webkit-scrollbar, .statusbar::-webkit-scrollbar {
        display: none;
    }
    .bb-status .status-spacer, .status-bar .status-spacer { display: none; }
}

/* --- Editor/IDE baslik alanlari --- */
@media (max-width: 640px) {
    /* Arduino editor: header iki satira sarsin, butonlar tasmasin */
    .header:has(.header-left) {
        height: auto !important;
        flex-wrap: wrap;
        padding: 8px 12px;
        row-gap: 8px;
    }
    .header-left { flex: 1 1 100%; min-width: 0; }
    .header-right { flex: 1 1 100%; flex-wrap: wrap; justify-content: flex-start; }
    .header-right, .header-actions, .toolbar-right { flex-wrap: wrap; gap: 4px; }
    .header-btn, .toolbar .btn { min-height: 36px; }
    .board-selector { max-width: 150px; }
    .board-selector span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .board-selector .icon { display: none; }
    .header-left .header-divider { display: none; }
    .header-left .logo span { display: none; }
    .toolbar-info { display: none; }
    .toolbar-left, .toolbar-right { width: 100%; justify-content: flex-start; }
}
/* Breadboard lejanti mobilde status bar ile cakisir; gizle */
@media (max-width: 768px) {
    .stage-legend { display: none !important; }
    .shortcut-hint { display: none !important; }
}

@media (max-width: 480px) {
    .bb-tools { flex-wrap: wrap; width: 100%; }
    .tool-btn { min-width: 40px; min-height: 40px; }
    .tool-btn .tool-label { display: none; }
    .tool-btn .tool-shortcut { display: none; }
    .board-selector { max-width: 96px; font-size: 11px; }
    .tab-bar { max-width: 45vw; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* --- Genel tablolar: hücre icerigi tasmasin ---
   min-width icerige (thead/tbody) uygulanir; kaydirilan elemanin kendisine
   uygulanirsa tablo kapsayicidan tasar. */
@media (max-width: 768px) {
    table > thead, table > tbody { min-width: 480px; }
}