/* --- DESIGN SYSTEM & SYSTEM TOKENS --- */
:root {
    --bg-primary: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.8);
    --border-color: rgba(226, 232, 240, 0.8);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --primary: #0ea5e9;
    --primary-hover: #0284c7;
    --accent: #10b981;
    --accent-hover: #059669;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --warning: #f59e0b;
    --shadow: 0 8px 32px 0 rgba(15, 23, 42, 0.05);
    --font-heading: 'Outfit', 'Noto Sans TC', sans-serif;
    --font-body: 'Noto Sans TC', sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0b0f19;
        --bg-card: rgba(21, 31, 50, 0.8);
        --border-color: rgba(30, 41, 59, 0.8);
        --text-main: #f1f5f9;
        --text-muted: #94a3b8;
        --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    }
}

/* --- RESET & BASIC STYLES --- */
body, html {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-main);
    min-height: 100vh;
    scroll-behavior: smooth;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- AUTH LOADING OVERLAY & GSI PANEL --- */
.auth-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--bg-primary) 0%, rgba(15, 23, 42, 0.95) 100%);
    backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.auth-panel-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    max-width: 380px;
    width: 90%;
}

.auth-panel-logo {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 8px;
}
.auth-panel-logo span {
    color: var(--primary);
}

.auth-panel-status {
    font-size: 16px;
    color: var(--text-main);
    margin-bottom: 24px;
}

/* --- APP SIDEBAR LAYOUT (Dashboard & Cashier) --- */
.app-container {
    display: flex;
    min-height: 100vh;
}

.q-sidebar {
    width: 280px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 30px 20px;
    box-sizing: border-box;
    backdrop-filter: blur(8px);
}

.sidebar-top {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-logo {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 800;
}
.sidebar-logo span {
    color: var(--primary);
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 15px;
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}
.sidebar-btn:hover, .sidebar-btn.active {
    background-color: var(--border-color);
    color: var(--text-main);
}

.sidebar-bottom {
    display: flex;
    flex-direction: column;
    gap: 15px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.main-content {
    flex: 1;
    padding: 40px;
    box-sizing: border-box;
    overflow-y: auto;
}

/* --- PREMIUM PERSONALIZED INPUTS & CUSTOM NUMPAD --- */
.custom-input-group {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.personal-input-box {
    width: 80%;
    border: none;
    background: transparent;
    outline: none;
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    color: var(--text-main);
    caret-color: var(--primary);
}
.personal-input-box::placeholder {
    color: var(--border-color);
}
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type=number] {
    -moz-appearance: textfield;
}

.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    width: 100%;
    max-width: 320px;
    margin-top: 16px;
}

.keypad-btn {
    aspect-ratio: 1.5;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.15s ease;
}
.keypad-btn:active {
    transform: scale(0.92);
    background-color: var(--border-color);
}
.keypad-btn.action {
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary);
}
.keypad-btn.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* --- SHIFT QUEUE PANELS --- */
.queue-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 900px) {
    .queue-grid {
        grid-template-columns: 1fr;
    }
}

.queue-column {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.queue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.queue-title {
    font-size: 18px;
    font-weight: 700;
}

.ticket-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.2s;
}
.ticket-card:hover {
    transform: translateY(-2px);
}
.ticket-card.called {
    border-left: 5px solid var(--warning);
    background: rgba(245, 158, 11, 0.05);
}
.ticket-card.almost {
    border-left: 5px solid var(--primary);
    background: rgba(14, 165, 233, 0.05);
}

.ticket-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ticket-num {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
}

.ticket-meta {
    font-size: 13px;
    color: var(--text-muted);
}

.ticket-actions {
    display: flex;
    gap: 8px;
}

/* --- PREMIUM UTILITY BUTTONS --- */
.btn-primary-sm, .btn-secondary-sm, .btn-danger-sm, .btn-warning-sm {
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}
.btn-primary-sm { background-color: var(--primary); color: white; }
.btn-primary-sm:hover { background-color: var(--primary-hover); }
.btn-secondary-sm { background-color: var(--border-color); color: var(--text-main); }
.btn-danger-sm { background-color: var(--danger); color: white; }
.btn-danger-sm:hover { background-color: var(--danger-hover); }
.btn-warning-sm { background-color: var(--warning); color: white; }

/* --- DIALS AND METERS --- */
.quota-radial {
    position: relative;
    width: 140px;
    height: 140px;
    margin: 20px auto;
}

.circle-svg {
    transform: rotate(-90deg);
}

.circle-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 10;
}

.circle-progress {
    fill: none;
    stroke: var(--primary);
    stroke-width: 10;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.6s ease;
}

.quota-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
}

/* --- CLIENT ALERTS & ANIMATIONS --- */
.alarm-active {
    animation: pulseBg 1s infinite alternate;
}

@keyframes pulseBg {
    0% { background-color: var(--bg-primary); }
    100% { background-color: rgba(239, 68, 68, 0.25); }
}

.sonar-wave {
    position: relative;
    display: inline-block;
}
.sonar-wave::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: 50%;
    background: var(--danger);
    opacity: 0.8;
    animation: sonar 1.5s infinite ease-out;
    z-index: -1;
}

@keyframes sonar {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(2.2); opacity: 0; }
}