/**
 * Mewsin Vintage CRT Terminal Style
 * 1980년대 레트로 CRT 터미널 디자인
 * [수정사항 - 2026-01-23 v1]
 * - 초기 생성: 인광 녹색 테마, CRT 스캔라인, 모노스페이스 폰트
 */

/* ============================================================
   CSS Variables - 빈티지 터미널 색상 팔레트
   ============================================================ */
:root {
    /* Primary Colors */
    --phosphor-green: #00ff41;
    --phosphor-dim: #00cc33;
    --phosphor-glow: rgba(0, 255, 65, 0.3);
    
    /* Warning/Alert Colors */
    --amber-warning: #ffb000;
    --red-alert: #ff2d00;
    --cyan-info: #00ffff;
    
    /* Background Colors */
    --terminal-black: #0a0a0a;
    --terminal-dark: #0d0d0d;
    --panel-bg: #1a1a1a;
    
    /* Metal/Border Colors */
    --metal-silver: #c0c0c0;
    --metal-dark: #808080;
    --border-glow: rgba(0, 255, 65, 0.5);
    
    /* Typography */
    --font-mono: 'Courier New', 'Consolas', 'Monaco', monospace;
    
    /* Effects */
    --scanline-opacity: 0.03;
    --text-shadow-glow: 0 0 10px var(--phosphor-green), 0 0 20px var(--phosphor-dim);
    --box-shadow-glow: 0 0 10px var(--phosphor-glow), inset 0 0 5px var(--phosphor-glow);
}

/* ============================================================
   Reset & Base Styles
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--terminal-black);
    color: var(--phosphor-green);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* CRT Scanline Effect Overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, var(--scanline-opacity)),
        rgba(0, 0, 0, var(--scanline-opacity)) 1px,
        transparent 1px,
        transparent 2px
    );
    z-index: 9999;
}

/* CRT Screen Flicker Animation */
@keyframes flicker {
    0%, 100% { opacity: 1; }
    92% { opacity: 1; }
    93% { opacity: 0.95; }
    94% { opacity: 1; }
}

body.crt-flicker {
    animation: flicker 0.15s infinite;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-mono);
    color: var(--phosphor-green);
    text-shadow: var(--text-shadow-glow);
    font-weight: normal;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

h1 { font-size: 1.8rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }

p {
    margin-bottom: 1rem;
    text-shadow: none;
}

a {
    color: var(--phosphor-green);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--cyan-info);
    text-shadow: 0 0 8px var(--cyan-info);
}

/* Blinking Cursor Effect */
.cursor-blink::after {
    content: '_';
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ============================================================
   Layout Components
   ============================================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.main-container {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

/* Terminal Panel/Card */
.terminal-panel,
.card:not(.crt-card) {
    background-color: var(--panel-bg);
    border: 2px solid var(--phosphor-dim);
    border-radius: 0;
    box-shadow: var(--box-shadow-glow);
    padding: 1.5rem;
    padding-top: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.terminal-panel::before,
.card:not(.crt-card)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 28px;
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark));
    border-bottom: 2px solid var(--phosphor-dim);
}

.terminal-panel .panel-title {
    position: absolute;
    top: 4px;
    left: 10px;
    z-index: 1;
    color: var(--terminal-black);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.75rem;
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
}

.card-header {
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark));
    border-bottom: 2px solid var(--phosphor-dim);
    color: var(--terminal-black);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
    margin: -1.5rem -1.5rem 1rem -1.5rem;
    margin-top: -2.5rem;
}

.card-body {
    padding-top: 0.5rem;
}

/* ============================================================
   Navigation Bar
   ============================================================ */
.navbar {
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark)) !important;
    border-bottom: 3px solid var(--phosphor-dim);
    padding: 0.5rem 0;
    box-shadow: 0 2px 10px rgba(0, 255, 65, 0.3);
}

.navbar-brand {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--terminal-black) !important;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: 1px 1px 0 var(--phosphor-dim);
}

.navbar-brand:hover {
    color: var(--phosphor-dim) !important;
}

.nav-link {
    font-family: var(--font-mono);
    color: var(--terminal-black) !important;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    padding: 0.5rem 1rem !important;
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--terminal-black);
    color: var(--phosphor-green) !important;
    text-shadow: var(--text-shadow-glow);
}

.navbar-toggler {
    border: 2px solid var(--terminal-black);
    border-radius: 0;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230a0a0a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Dropdown Menus */
.dropdown-menu {
    background-color: var(--terminal-black);
    border: 2px solid var(--phosphor-dim);
    border-radius: 0;
    box-shadow: var(--box-shadow-glow);
    padding: 0;
}

.dropdown-item {
    font-family: var(--font-mono);
    color: var(--phosphor-green);
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    border-bottom: 1px solid var(--panel-bg);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--phosphor-dim);
    color: var(--terminal-black);
}

.dropdown-divider {
    border-color: var(--phosphor-dim);
    margin: 0;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 0;
    padding: 0.5rem 1.5rem;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--phosphor-green);
    border: 2px solid var(--phosphor-green);
    color: var(--terminal-black);
    font-weight: bold;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--terminal-black);
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
    box-shadow: var(--box-shadow-glow);
}

.btn-secondary {
    background-color: var(--metal-dark);
    border: 2px solid var(--metal-silver);
    color: var(--terminal-black);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--terminal-black);
    border-color: var(--metal-silver);
    color: var(--metal-silver);
}

.btn-danger {
    background-color: var(--red-alert);
    border: 2px solid var(--red-alert);
    color: #fff;
}

.btn-danger:hover,
.btn-danger:focus {
    background-color: var(--terminal-black);
    border-color: var(--red-alert);
    color: var(--red-alert);
    box-shadow: 0 0 10px rgba(255, 45, 0, 0.5);
}

.btn-warning {
    background-color: var(--amber-warning);
    border: 2px solid var(--amber-warning);
    color: var(--terminal-black);
}

.btn-warning:hover,
.btn-warning:focus {
    background-color: var(--terminal-black);
    border-color: var(--amber-warning);
    color: var(--amber-warning);
    box-shadow: 0 0 10px rgba(255, 176, 0, 0.5);
}

.btn-info {
    background-color: var(--cyan-info);
    border: 2px solid var(--cyan-info);
    color: var(--terminal-black);
}

.btn-info:hover,
.btn-info:focus {
    background-color: var(--terminal-black);
    border-color: var(--cyan-info);
    color: var(--cyan-info);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* ============================================================
   Forms
   ============================================================ */
.form-control,
.form-select {
    font-family: var(--font-mono);
    background-color: var(--terminal-black);
    border: 2px solid var(--phosphor-dim);
    border-radius: 0;
    color: var(--phosphor-green);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--terminal-black);
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
    box-shadow: var(--box-shadow-glow);
    outline: none;
}

.form-control::placeholder {
    color: var(--phosphor-dim);
    opacity: 0.5;
}

.form-label {
    font-family: var(--font-mono);
    color: var(--phosphor-green);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.form-text {
    color: var(--phosphor-dim);
    font-size: 0.75rem;
}

/* Input Group */
.input-group-text {
    background-color: var(--metal-dark);
    border: 2px solid var(--phosphor-dim);
    border-radius: 0;
    color: var(--phosphor-green);
    font-family: var(--font-mono);
}

/* ============================================================
   Tables
   ============================================================ */
.table {
    font-family: var(--font-mono);
    color: var(--phosphor-green);
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
    margin-bottom: 1rem;
}

.table thead th {
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark));
    color: var(--terminal-black);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    padding: 0.75rem;
    border: 1px solid var(--metal-dark);
    font-weight: bold;
}

.table tbody td {
    background-color: var(--terminal-black);
    border: 1px solid var(--panel-bg);
    padding: 0.75rem;
    font-size: 0.85rem;
}

.table tbody tr:hover td {
    background-color: var(--panel-bg);
    text-shadow: 0 0 5px var(--phosphor-dim);
}

.table-striped tbody tr:nth-of-type(odd) td {
    background-color: var(--terminal-dark);
}

.table-bordered {
    border: 2px solid var(--phosphor-dim);
}

/* ============================================================
   Alerts
   ============================================================ */
.alert {
    font-family: var(--font-mono);
    border-radius: 0;
    border-width: 2px;
    padding: 1rem 1.5rem;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.alert-success {
    background-color: var(--terminal-black);
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
    box-shadow: 0 0 10px var(--phosphor-glow);
}

.alert-danger {
    background-color: var(--terminal-black);
    border-color: var(--red-alert);
    color: var(--red-alert);
    box-shadow: 0 0 10px rgba(255, 45, 0, 0.3);
}

.alert-warning {
    background-color: var(--terminal-black);
    border-color: var(--amber-warning);
    color: var(--amber-warning);
    box-shadow: 0 0 10px rgba(255, 176, 0, 0.3);
}

.alert-info {
    background-color: var(--terminal-black);
    border-color: var(--cyan-info);
    color: var(--cyan-info);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

/* ============================================================
   Badges & Labels
   ============================================================ */
.badge {
    font-family: var(--font-mono);
    border-radius: 0;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: normal;
}

.badge.bg-primary,
.badge.bg-success {
    background-color: var(--phosphor-green) !important;
    color: var(--terminal-black);
}

.badge.bg-danger {
    background-color: var(--red-alert) !important;
    color: #fff;
}

.badge.bg-warning {
    background-color: var(--amber-warning) !important;
    color: var(--terminal-black);
}

.badge.bg-info {
    background-color: var(--cyan-info) !important;
    color: var(--terminal-black);
}

.badge.bg-secondary {
    background-color: var(--metal-dark) !important;
    color: var(--terminal-black);
}

/* ============================================================
   LED Status Indicators
   ============================================================ */
.led-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.5rem;
    box-shadow: 0 0 5px currentColor;
}

.led-green {
    background-color: var(--phosphor-green);
    box-shadow: 0 0 10px var(--phosphor-green);
    animation: led-pulse 2s infinite;
}

.led-red {
    background-color: var(--red-alert);
    box-shadow: 0 0 10px var(--red-alert);
}

.led-amber {
    background-color: var(--amber-warning);
    box-shadow: 0 0 10px var(--amber-warning);
    animation: led-pulse 1s infinite;
}

@keyframes led-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
    background: linear-gradient(to bottom, var(--metal-dark), var(--metal-silver));
    border-top: 3px solid var(--phosphor-dim);
    padding: 1.5rem 0;
    margin-top: 2rem;
    text-align: center;
}

.footer p {
    color: var(--terminal-black);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
    text-shadow: none;
}

.footer a {
    color: var(--terminal-black);
    font-weight: bold;
}

.footer a:hover {
    color: var(--phosphor-dim);
}

/* ============================================================
   Modal
   ============================================================ */
.modal-content {
    background-color: var(--terminal-black);
    border: 3px solid var(--phosphor-dim);
    border-radius: 0;
    box-shadow: var(--box-shadow-glow);
}

.modal-header {
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark));
    border-bottom: 2px solid var(--phosphor-dim);
    border-radius: 0;
    padding: 0.75rem 1rem;
}

.modal-title {
    color: var(--terminal-black);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
    text-shadow: none;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    background-color: var(--panel-bg);
    border-top: 1px solid var(--phosphor-dim);
    border-radius: 0;
}

.btn-close {
    filter: invert(1);
}

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
    gap: 0.25rem;
}

.page-link {
    font-family: var(--font-mono);
    background-color: var(--terminal-black);
    border: 2px solid var(--phosphor-dim);
    color: var(--phosphor-green);
    border-radius: 0;
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
}

.page-link:hover,
.page-link:focus {
    background-color: var(--phosphor-dim);
    border-color: var(--phosphor-green);
    color: var(--terminal-black);
}

.page-item.active .page-link {
    background-color: var(--phosphor-green);
    border-color: var(--phosphor-green);
    color: var(--terminal-black);
}

.page-item.disabled .page-link {
    background-color: var(--panel-bg);
    border-color: var(--metal-dark);
    color: var(--metal-dark);
}

/* ============================================================
   Nav Pills (Tab Menu) - CRT Style
   ============================================================ */
.nav-pills .nav-link {
    background-color: var(--terminal-black) !important;
    border: 2px solid var(--phosphor-dim) !important;
    color: var(--phosphor-green) !important;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: 0 !important;
}

.nav-pills .nav-link:hover {
    background-color: var(--panel-bg) !important;
    border-color: var(--phosphor-green) !important;
    color: var(--phosphor-green) !important;
    text-shadow: var(--text-shadow-glow);
}

.nav-pills .nav-link.active {
    background-color: var(--terminal-black) !important;
    border-color: var(--phosphor-green) !important;
    color: var(--phosphor-green) !important;
    font-weight: bold;
    text-shadow: var(--text-shadow-glow);
    box-shadow: var(--box-shadow-glow);
}

/* ============================================================
   Terminal Prompt Style
   ============================================================ */
.terminal-prompt {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.terminal-prompt::before {
    content: '>';
    color: var(--phosphor-green);
    margin-right: 0.5rem;
    font-weight: bold;
    text-shadow: var(--text-shadow-glow);
}

.terminal-output {
    background-color: var(--terminal-black);
    border: 1px solid var(--phosphor-dim);
    padding: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    line-height: 1.8;
    white-space: pre-wrap;
    overflow-x: auto;
}

/* ============================================================
   Status Bar
   ============================================================ */
.status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark));
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--terminal-black);
}

.status-bar .status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ============================================================
   Utility Classes
   ============================================================ */
.text-phosphor { color: var(--phosphor-green) !important; }
.text-amber { color: var(--amber-warning) !important; }
.text-red { color: var(--red-alert) !important; }
.text-cyan { color: var(--cyan-info) !important; }
.text-silver { color: var(--metal-silver) !important; }

.bg-terminal { background-color: var(--terminal-black) !important; }
.bg-panel { background-color: var(--panel-bg) !important; }

.border-phosphor { border-color: var(--phosphor-green) !important; }
.border-amber { border-color: var(--amber-warning) !important; }
.border-red { border-color: var(--red-alert) !important; }

.glow-text {
    text-shadow: var(--text-shadow-glow);
}

.glow-box {
    box-shadow: var(--box-shadow-glow);
}

/* Screen Boot Animation */
@keyframes boot-up {
    0% {
        opacity: 0;
        filter: brightness(0);
    }
    50% {
        opacity: 0.5;
        filter: brightness(0.5);
    }
    100% {
        opacity: 1;
        filter: brightness(1);
    }
}

.boot-animation {
    animation: boot-up 1s ease-out;
}

/* ============================================================
   Horizontal Rule
   ============================================================ */
hr {
    border: none;
    border-top: 1px solid var(--phosphor-dim);
    opacity: 0.5;
    margin: 1.5rem 0;
}

/* ============================================================
   CRT Card (Admin Pages)
   ============================================================ */
.crt-card {
    background-color: var(--panel-bg);
    border: 2px solid var(--phosphor-dim);
    box-shadow: var(--box-shadow-glow);
    margin-bottom: 1.5rem;
    padding: 0 !important;
    position: relative;
}

/* crt-card는 ::before 가상요소 사용 안함 */
.crt-card::before {
    display: none !important;
    content: none !important;
}

.crt-card .card-header {
    background: linear-gradient(to bottom, var(--metal-silver), var(--metal-dark));
    border-bottom: 2px solid var(--phosphor-dim);
    padding: 0.75rem 1.5rem;
    position: relative;
    margin: 0;
}

.crt-card .card-header h5 {
    color: var(--terminal-black) !important;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin: 0;
    text-shadow: none !important;
}

.crt-card .card-body {
    padding: 1.5rem;
}

.crt-card .card-footer {
    background-color: var(--panel-bg);
    border-top: 1px solid var(--phosphor-dim);
    padding: 1rem 1.5rem;
}

/* ============================================================
   Admin Page Layout
   ============================================================ */
.admin-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1rem 2rem;
}

.admin-container .page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.admin-container .page-header h1 {
    margin-bottom: 0;
}

.admin-container .page-header .btn-group-header {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ============================================================
   Admin Components (Stat Panel, Filter, Summary)
   ============================================================ */
/* CRT Stat Panel - 통계 카드 */
.crt-stat-panel {
    background-color: var(--terminal-black);
    border: 2px solid var(--phosphor-dim);
    padding: 1.25rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.crt-stat-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--phosphor-dim);
}

.crt-stat-panel:hover {
    box-shadow: var(--box-shadow-glow);
}

.crt-stat-panel .stat-number {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: bold;
    margin-bottom: 0.25rem;
    text-shadow: var(--text-shadow-glow);
}

.crt-stat-panel .stat-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.crt-stat-panel.phosphor {
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
}
.crt-stat-panel.phosphor::before { background: var(--phosphor-green); }

.crt-stat-panel.amber {
    border-color: var(--amber-warning);
    color: var(--amber-warning);
}
.crt-stat-panel.amber::before { background: var(--amber-warning); }

.crt-stat-panel.cyan {
    border-color: var(--cyan-info);
    color: var(--cyan-info);
}
.crt-stat-panel.cyan::before { background: var(--cyan-info); }

.crt-stat-panel.red {
    border-color: var(--red-alert);
    color: var(--red-alert);
}
.crt-stat-panel.red::before { background: var(--red-alert); }

/* Filter Panel - 필터/검색 영역 */
.filter-panel {
    background-color: var(--terminal-black);
    border: 2px solid var(--phosphor-dim);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

/* Summary Alert - 요약 정보 */
.summary-alert {
    background-color: var(--terminal-black);
    border: 2px solid var(--cyan-info);
    color: var(--cyan-info);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

/* CRT Badge - 상태 뱃지 */
.crt-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.35rem 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid;
    display: inline-block;
}

.crt-badge.active {
    background-color: var(--phosphor-green);
    border-color: var(--phosphor-green);
    color: var(--terminal-black);
    box-shadow: 0 0 8px var(--phosphor-glow);
}

.crt-badge.inactive {
    background-color: var(--red-alert);
    border-color: var(--red-alert);
    color: #fff;
    box-shadow: 0 0 8px rgba(255, 45, 0, 0.4);
}

.crt-badge.pending {
    background-color: var(--amber-warning);
    border-color: var(--amber-warning);
    color: var(--terminal-black);
    box-shadow: 0 0 8px rgba(255, 176, 0, 0.4);
}

.crt-badge.expired {
    background-color: var(--metal-dark);
    border-color: var(--metal-silver);
    color: var(--terminal-black);
}

/* Empty State - 데이터 없음 */
.crt-empty-state {
    color: var(--phosphor-dim);
    text-align: center;
    padding: 3rem 1rem;
}

.crt-empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
    opacity: 0.5;
}

/* Button Outline Variants for Admin */
.btn-outline-primary {
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
}
.btn-outline-primary:hover {
    background-color: var(--phosphor-green);
    border-color: var(--phosphor-green);
    color: var(--terminal-black);
    box-shadow: 0 0 10px var(--phosphor-glow);
}

.btn-outline-warning {
    border-color: var(--amber-warning);
    color: var(--amber-warning);
}
.btn-outline-warning:hover {
    background-color: var(--amber-warning);
    border-color: var(--amber-warning);
    color: var(--terminal-black);
}

.btn-outline-success {
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
}
.btn-outline-success:hover {
    background-color: var(--phosphor-green);
    border-color: var(--phosphor-green);
    color: var(--terminal-black);
}

.btn-outline-secondary {
    border-color: var(--metal-silver);
    color: var(--metal-silver);
}
.btn-outline-secondary:hover {
    background-color: var(--metal-silver);
    border-color: var(--metal-silver);
    color: var(--terminal-black);
}

.btn-outline-danger {
    border-color: var(--red-alert);
    color: var(--red-alert);
}
.btn-outline-danger:hover {
    background-color: var(--red-alert);
    border-color: var(--red-alert);
    color: #fff;
}

/* btn-success override */
.btn-success {
    background-color: var(--phosphor-green);
    border: 2px solid var(--phosphor-green);
    color: var(--terminal-black);
    font-weight: bold;
}
.btn-success:hover {
    background-color: var(--terminal-black);
    border-color: var(--phosphor-green);
    color: var(--phosphor-green);
    box-shadow: var(--box-shadow-glow);
}

/* Vertical button group for admin tables */
.btn-group-vertical .btn {
    font-size: 0.7rem;
    padding: 0.35rem 0.5rem;
    letter-spacing: 0.5px;
}

/* Table vertical align */
.table td, .table th {
    vertical-align: middle;
}

/* ============================================================
   Responsive Adjustments
   ============================================================ */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
        letter-spacing: 1px;
    }
    
    .nav-link {
        font-size: 0.8rem;
        padding: 0.5rem !important;
    }
    
    .terminal-panel,
    .card:not(.crt-card) {
        padding: 1rem;
        padding-top: 2.8rem; /* 패널 타이틀 바 높이 확보 (모바일) */
        margin-bottom: 1rem;
    }
    
    .terminal-panel .card-body,
    .card:not(.crt-card) .card-body {
        padding-top: 0.5rem; /* 모바일에서 내용 상단 여백 */
    }
    
    .table {
        font-size: 0.75rem;
    }
    
    .table thead th,
    .table tbody td {
        padding: 0.5rem;
    }
    
    h1 { font-size: 1.4rem; }
    h2 { font-size: 1.2rem; }
    h3 { font-size: 1rem; }
    
    /* main-container 상단 여백 확보 */
    .main-container {
        padding-top: 1rem;
    }
    
    /* crt-card 모바일 스타일 (관리자 페이지) */
    .crt-card {
        padding-top: 0;
    }
    
    .crt-card .card-header {
        margin: 0;
    }
    
    .crt-card .card-body {
        padding: 1rem;
    }
}

/* ============================================================
   Override Bootstrap's bg-light
   ============================================================ */
.bg-light {
    background-color: var(--terminal-black) !important;
}

.bg-white {
    background-color: var(--metal-silver) !important;
}

/* ============================================================
   Custom Scrollbar
   ============================================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--terminal-black);
    border: 1px solid var(--phosphor-dim);
}

::-webkit-scrollbar-thumb {
    background: var(--phosphor-dim);
    border: 1px solid var(--phosphor-green);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--phosphor-green);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--phosphor-dim) var(--terminal-black);
}

/* ============================================================
   Text Readability Improvements
   ============================================================ */
/* 리스트 항목 가독성 */
ul, ol, li {
    color: var(--phosphor-green);
    text-shadow: none;
}

/* 일반 본문 텍스트 */
.card-body p,
.card-body li,
.terminal-panel p,
.terminal-panel li,
main p,
main li {
    color: var(--phosphor-green);
    text-shadow: none;
    opacity: 1;
}

/* muted 텍스트도 가독성 확보 */
.text-muted {
    color: #adb5bd !important;
    opacity: 1;
}

/* small 클래스 가독성 */
.small, small {
    color: inherit;
}