/* ===================================================================
   style.css — Okul Giriş-Çıkış Tablet Kiosk Uygulaması
   Tablet: landscape 1024x600 - 1280x800, dokunmatik ekran
   =================================================================== */

/* ─── CSS DEĞİŞKENLERİ ─────────────────────────────────────────── */
:root {
    --bg-primary:        #ffffff;
    --bg-secondary:      #f5f5f5;
    --bg-surface:        #e8e8e8;

    --color-entry:       #4CAF50;
    --color-entry-dark:  #388e3c;
    --color-entry-hover: #45a049;

    --color-exit:        #e53935;
    --color-exit-dark:   #b71c1c;
    --color-exit-hover:  #c62828;

    --color-success:     #4CAF50;
    --color-error:       #f44336;
    --color-warning:     #FFC107;

    --text-primary:      #1a1a2e;
    --text-secondary:    #555e6e;
    --text-muted:        #9098a5;

    --numpad-bg:         #eeeff2;
    --numpad-border:     rgba(0, 0, 0, 0.1);
    --numpad-active:     #d8dae0;

    --btn-yes-bg:        #2e7d32;
    --btn-no-bg:         #424242;

    --border-radius-lg:  20px;
    --border-radius-md:  14px;
    --border-radius-sm:  10px;

    --transition-fast:   0.1s ease;
    --transition-mid:    0.2s ease;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
    /* Metin seçimini ve zoom'u engelle */
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

/* ─── UYGULAMA KAPSAYICISI ──────────────────────────────────────── */
#app {
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

/* ─── EKRAN SİSTEMİ ─────────────────────────────────────────────── */
.screen {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-mid);
    padding: 24px;
}

.screen.active {
    opacity: 1;
    pointer-events: auto;
}

/* ─── MOCK MOD BANNER ──────────────────────────────────────────── */
#mock-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #b71c1c;
    color: #fff;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 0;
    letter-spacing: 0.5px;
    z-index: 999;
    display: none;
}

#mock-banner.visible {
    display: block;
}

/* ─── EKRAN 1: ANA EKRAN ────────────────────────────────────────── */
#screen-home {
    background: var(--bg-primary);
    gap: 32px;
}

.home-header {
    text-align: center;
}

.school-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.school-logo img {
    width: 80px;
    height: 80px;
    display: block;
}

.school-name {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.home-buttons {
    display: flex;
    gap: 40px;
    align-items: center;
}

.btn-home {
    width: 220px;
    height: 100px;
    border-radius: var(--border-radius-lg);
    border: none;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: transform var(--transition-fast), filter var(--transition-mid);
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.btn-home:active {
    transform: scale(0.94);
}

.btn-home.entry {
    background: var(--color-entry);
    color: #fff;
}

.btn-home.entry:hover {
    filter: brightness(1.1);
}

.btn-home.exit {
    background: var(--color-exit);
    color: #fff;
}

.btn-home.exit:hover {
    filter: brightness(1.1);
}

.btn-home svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
    flex-shrink: 0;
}

/* Saat göstergesi */
.clock-container {
    text-align: center;
}

#clock-time {
    font-size: 2.6rem;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

#clock-date {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 4px;
    text-transform: capitalize;
}

/* ─── EKRAN 2: PIN GİRİŞ EKRANI ─────────────────────────────────── */
#screen-pin {
    background: var(--bg-primary);
    gap: 0;
    justify-content: flex-start;
    padding-top: 16px;
}

.pin-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px 20px;
}

.btn-back {
    background: transparent;
    border: 2px solid rgba(0, 0, 0, 0.15);
    color: var(--text-secondary);
    font-size: 1rem;
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: border-color var(--transition-mid), color var(--transition-mid), transform var(--transition-fast);
}

.btn-back:active {
    transform: scale(0.95);
}

.btn-back svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.mode-badge {
    font-size: 1.1rem;
    font-weight: 700;
    padding: 8px 24px;
    border-radius: 50px;
    letter-spacing: 1px;
}

.mode-badge.entry {
    background: rgba(76, 175, 80, 0.2);
    color: var(--color-entry);
    border: 2px solid rgba(76, 175, 80, 0.4);
}

.mode-badge.exit {
    background: rgba(229, 57, 53, 0.2);
    color: var(--color-exit);
    border: 2px solid rgba(229, 57, 53, 0.4);
}

.pin-title {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-align: center;
}

/* PIN göstergesi (nokta dizisi) */
.pin-display {
    display: flex;
    gap: 14px;
    margin-bottom: 28px;
    align-items: center;
    justify-content: center;
    min-height: 28px;
}

.pin-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.2);
    background: transparent;
    transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.pin-dot.filled {
    background: var(--text-primary);
    border-color: var(--text-primary);
    transform: scale(1.15);
}

.pin-dot.entry-filled {
    background: var(--color-entry);
    border-color: var(--color-entry);
}

.pin-dot.exit-filled {
    background: var(--color-exit);
    border-color: var(--color-exit);
}

/* Numpad */
.numpad {
    display: grid;
    grid-template-columns: repeat(3, 88px);
    grid-template-rows: repeat(4, 88px);
    gap: 12px;
}

.numpad-key {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    border: 2px solid var(--numpad-border);
    background: var(--numpad-bg);
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 400;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), background var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.numpad-key:active,
.numpad-key.pressed {
    transform: scale(0.88);
    background: var(--numpad-active);
}

.numpad-key.key-delete {
    font-size: 1.5rem;
}

.numpad-key.key-confirm {
    background: var(--color-entry);
    border-color: transparent;
    font-size: 1.6rem;
}

.numpad-key.key-confirm.exit-mode {
    background: var(--color-exit);
}

.numpad-key.key-confirm:active {
    background: var(--color-entry-dark);
}

.numpad-key.key-confirm.exit-mode:active {
    background: var(--color-exit-dark);
}

.numpad-key.key-empty {
    background: transparent;
    border-color: transparent;
    pointer-events: none;
    cursor: default;
}

/* ─── EKRAN 3: ONAY EKRANI ──────────────────────────────────────── */
#screen-confirm {
    background: var(--bg-secondary);
    gap: 40px;
}

.confirm-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.confirm-icon.entry {
    background: rgba(76, 175, 80, 0.15);
    border: 3px solid rgba(76, 175, 80, 0.4);
}

.confirm-icon.exit {
    background: rgba(229, 57, 53, 0.15);
    border: 3px solid rgba(229, 57, 53, 0.4);
}

.confirm-icon svg {
    width: 44px;
    height: 44px;
}

.confirm-name {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
}

.confirm-question {
    font-size: 1.3rem;
    color: var(--text-secondary);
    text-align: center;
}

.confirm-question .mode-word {
    font-weight: 700;
}

.confirm-question .mode-word.entry {
    color: var(--color-entry);
}

.confirm-question .mode-word.exit {
    color: var(--color-exit);
}

.confirm-buttons {
    display: flex;
    gap: 32px;
}

.btn-confirm {
    min-width: 180px;
    height: 72px;
    border-radius: var(--border-radius-md);
    border: none;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: transform var(--transition-fast), filter var(--transition-mid);
    -webkit-tap-highlight-color: transparent;
}

.btn-confirm:active {
    transform: scale(0.94);
}

.btn-confirm.yes {
    background: var(--btn-yes-bg);
    color: #fff;
}

.btn-confirm.yes:active {
    filter: brightness(0.85);
}

.btn-confirm.no {
    background: var(--btn-no-bg);
    color: #ffffff;
    border: 2px solid rgba(0, 0, 0, 0.1);
}

.btn-confirm.no:active {
    filter: brightness(1.2);
}

/* ─── EKRAN 4: BAŞARILI İŞLEM EKRANI ───────────────────────────── */
#screen-success {
    background: var(--bg-primary);
    gap: 20px;
}

.success-icon {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(76, 175, 80, 0.15);
    border: 4px solid var(--color-success);
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-icon svg {
    width: 70px;
    height: 70px;
    stroke: var(--color-success);
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.success-name {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
}

.success-greeting {
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--color-success);
    text-align: center;
}

.success-time {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
}

/* İlerleme çubuğu — ekranda kalma süresini gösterir */
.success-progress {
    width: 260px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.success-progress-bar {
    height: 100%;
    background: var(--color-success);
    width: 100%;
    transform-origin: left;
    animation: none;
}

.success-progress-bar.animating {
    animation: progress-drain linear forwards;
}

@keyframes progress-drain {
    from { transform: scaleX(1); }
    to   { transform: scaleX(0); }
}

/* ─── EKRAN 5: HATA EKRANI ──────────────────────────────────────── */
#screen-error {
    background: var(--bg-primary);
    gap: 20px;
}

.error-icon {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(244, 67, 54, 0.15);
    border: 4px solid var(--color-error);
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-icon svg {
    width: 60px;
    height: 60px;
    stroke: var(--color-error);
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
}

.error-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-error);
    text-align: center;
}

.error-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
}

.error-progress {
    width: 220px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.error-progress-bar {
    height: 100%;
    background: var(--color-error);
    width: 100%;
    transform-origin: left;
    animation: none;
}

.error-progress-bar.animating {
    animation: progress-drain linear forwards;
}

/* ─── EKRAN 6: BAĞLANTI HATASI EKRANI ──────────────────────────── */
#screen-connection-error {
    background: var(--bg-primary);
    gap: 24px;
}

.warning-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(255, 193, 7, 0.15);
    border: 3px solid rgba(255, 193, 7, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.warning-icon svg {
    width: 56px;
    height: 56px;
    fill: var(--color-warning);
}

.connection-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-warning);
    text-align: center;
}

.connection-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
}

.btn-retry {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 2px solid rgba(0, 0, 0, 0.15);
    font-size: 1.2rem;
    font-weight: 600;
    padding: 16px 48px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: transform var(--transition-fast), filter var(--transition-mid);
    -webkit-tap-highlight-color: transparent;
}

.btn-retry:active {
    transform: scale(0.95);
    filter: brightness(1.2);
}

.connection-countdown {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
}

/* ─── YÜKLEME GÖSTERGESİ ────────────────────────────────────────── */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-mid);
}

.loading-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── YARDIMCI SINIFLAR ─────────────────────────────────────────── */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}