/* ================================================================
   MAIN.CSS - Styles chung cho toàn bộ ứng dụng
   Tông màu: Xanh navy (#1a2332, #2c3e6b), trắng, xám nhạt
   Font: Inter (Google Fonts)
   ================================================================ */

/* ===== CSS VARIABLES ===== */
:root {
    /* Màu chính */
    --color-primary: #2c3e6b;
    --color-primary-dark: #1a2332;
    --color-primary-light: #3d5a99;
    --color-primary-lighter: #e8edf6;

    /* Màu phụ */
    --color-secondary: #5a7bbf;
    --color-accent: #4e8cff;

    /* Màu trạng thái */
    --color-success: #27ae60;
    --color-success-light: #e8f8ef;
    --color-warning: #f39c12;
    --color-warning-light: #fef5e7;
    --color-danger: #e74c3c;
    --color-danger-light: #fde8e6;
    --color-info: #3498db;
    --color-info-light: #e8f4fd;

    /* Màu nền */
    --bg-body: #f0f2f5;
    --bg-white: #ffffff;
    --bg-card: #ffffff;
    --bg-sidebar: #1a2332;

    /* Màu chữ */
    --text-primary: #1a2332;
    --text-secondary: #5a6a85;
    --text-muted: #8c9ab5;
    --text-white: #ffffff;
    --text-light: #c5cdd8;

    /* Viền */
    --border-color: #e2e8f0;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;

    /* Bóng */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);

    /* Kích thước */
    --header-height: 64px;
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;

    /* Chuyển động */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

.text-gradient {
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--text-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--text-white);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-success), #2ecc71);
    color: var(--text-white);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger), #c0392b);
    color: var(--text-white);
}

.btn-warning {
    background: linear-gradient(135deg, var(--color-warning), #e67e22);
    color: var(--text-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--text-white);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    display: flex;
    width: 100%;
    justify-content: center;
}

.btn-icon {
    padding: 8px;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-icon:hover {
    background: var(--bg-body);
    color: var(--color-primary);
}

.btn-login {
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
    color: var(--text-white) !important;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 500;
}

.btn-login:hover {
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(78, 140, 255, 0.4);
}

/* ===== FORM ELEMENTS ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group label i {
    color: var(--text-muted);
    margin-right: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-white);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(78, 140, 255, 0.15);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group .error-message {
    color: var(--color-danger);
    font-size: 13px;
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Password toggle */
.password-input-wrapper {
    position: relative;
}

.password-input-wrapper input {
    padding-right: 44px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}

.password-toggle:hover {
    color: var(--text-primary);
}

/* ===== ALERTS ===== */
.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    font-size: 14px;
    animation: slideDown 0.3s ease;
}

.alert-error {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.alert-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid rgba(39, 174, 96, 0.2);
}

.alert-warning {
    background: var(--color-warning-light);
    color: #b7791f;
    border: 1px solid rgba(243, 156, 18, 0.2);
}

.alert-info {
    background: var(--color-info-light);
    color: var(--color-info);
    border: 1px solid rgba(52, 152, 219, 0.2);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== CLIENT HEADER ===== */
.client-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.logo i {
    font-size: 24px;
    color: var(--color-accent);
}

.logo:hover {
    color: var(--color-primary);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-lighter);
}

.nav-link i {
    margin-right: 4px;
}

.nav-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-auth {
    margin-left: 8px;
}

/* User dropdown */
.user-menu {
    position: relative;
    margin-left: 8px;
}

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: var(--bg-white);
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.user-menu-btn:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.user-menu-btn .fa-user-circle {
    font-size: 20px;
    color: var(--color-primary);
}

.user-menu-btn .fa-chevron-down {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.user-menu.active .fa-chevron-down {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 200;
    overflow: hidden;
}

.user-menu.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all var(--transition-fast);
}

.user-dropdown a:hover {
    background: var(--color-primary-lighter);
    color: var(--color-primary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: none;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--color-danger);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logout-btn:hover {
    background: var(--color-danger-light);
}

.mobile-menu-toggle {
    display: none;
    padding: 8px;
    border: none;
    background: none;
    font-size: 20px;
    color: var(--text-primary);
    cursor: pointer;
}

/* ===== CLIENT MAIN ===== */
.client-main {
    min-height: calc(100vh - var(--header-height) - 200px);
}

/* ===== HERO SECTION ===== */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary), var(--color-primary-light));
    padding: 80px 20px;
    text-align: center;
    overflow: hidden;
    color: var(--text-white);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
}

.hero-content .text-gradient {
    background: linear-gradient(135deg, #74b9ff, #a29bfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-actions .btn-primary {
    background: var(--color-accent);
    padding: 14px 32px;
    font-size: 16px;
    border-radius: 30px;
}

.hero-actions .btn-primary:hover {
    background: #3d7ce6;
    box-shadow: 0 6px 20px rgba(78, 140, 255, 0.4);
}

.hero-actions .btn-outline {
    color: var(--text-white);
    border-color: rgba(255, 255, 255, 0.5);
    padding: 14px 32px;
    font-size: 16px;
    border-radius: 30px;
}

.hero-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--text-white);
    color: var(--text-white);
}

/* Hero decoration shapes */
.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--text-white);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 250px;
    height: 250px;
    background: var(--color-accent);
    bottom: -50px;
    left: -50px;
    animation: float 6s ease-in-out infinite reverse;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: var(--text-white);
    top: 50%;
    left: 30%;
    animation: float 10s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -15px) rotate(5deg); }
    50% { transform: translate(-5px, 10px) rotate(-3deg); }
    75% { transform: translate(8px, 5px) rotate(2deg); }
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
}

.icon-blue {
    background: var(--color-info-light);
    color: var(--color-info);
}

.icon-green {
    background: var(--color-success-light);
    color: var(--color-success);
}

.icon-purple {
    background: #f0ecff;
    color: #7c5cfc;
}

.icon-orange {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* ===== STATS SECTION ===== */
.stats-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    padding: 60px 20px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--text-white);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

/* ===== HOW IT WORKS SECTION ===== */
.howto-section {
    padding: 80px 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.howto-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.howto-step {
    text-align: center;
    flex: 1;
    max-width: 250px;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 auto 16px;
}

.howto-step h3 {
    margin-bottom: 8px;
    font-size: 1rem;
}

.howto-step p {
    color: var(--text-secondary);
    font-size: 14px;
}

.howto-connector {
    color: var(--text-muted);
    font-size: 20px;
}

/* ===== CLIENT FOOTER ===== */
.client-footer {
    background: var(--color-primary-dark);
    color: var(--text-light);
    padding: 40px 20px 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 30px;
}

.footer-brand h3 {
    font-size: 1.3rem;
    color: var(--text-white);
    margin-bottom: 8px;
}

.footer-brand h3 i {
    color: var(--color-accent);
    margin-right: 8px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    padding: 4px 0;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-white);
}

.footer-contact p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    padding: 4px 0;
}

.footer-contact i {
    margin-right: 8px;
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 20px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== LOGIN PAGE ===== */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height) - 200px);
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--bg-body) 0%, var(--color-primary-lighter) 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    animation: fadeInUp 0.5s ease;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px;
}

.login-header h1 {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form .btn-block {
    margin-top: 8px;
    padding: 12px;
    font-size: 15px;
    border-radius: var(--border-radius);
}

.login-footer {
    margin-top: 24px;
    text-align: center;
}

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

.login-note i {
    color: var(--color-info);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== ERROR PAGE ===== */
.error-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height) - 200px);
    padding: 40px 20px;
}

.error-card {
    text-align: center;
    max-width: 450px;
}

.error-icon {
    font-size: 64px;
    color: var(--color-danger);
    margin-bottom: 16px;
}

.error-card h1 {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-danger);
    margin-bottom: 8px;
}

.error-card h2 {
    margin-bottom: 12px;
}

.error-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.error-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ===== TABLES ===== */
.data-table-wrapper {
    overflow-x: auto;
    border-radius: var(--border-radius);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: var(--bg-body);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--color-primary-lighter);
}

.data-table .actions {
    display: flex;
    gap: 6px;
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-light);
    color: #b7791f;
}

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.badge-info {
    background: var(--color-info-light);
    color: var(--color-info);
}

.badge-secondary {
    background: #edf2f7;
    color: var(--text-secondary);
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 40px;
    margin-bottom: 12px;
    display: block;
    opacity: 0.5;
}

.empty-state p {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 4px;
}

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

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 20px 0;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 4px 10px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--color-primary-lighter);
    color: var(--color-primary);
    border-color: var(--color-primary-lighter);
}

.pagination .active {
    background: var(--color-primary);
    color: var(--text-white);
    border-color: var(--color-primary);
}

.pagination .disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ===== LOADING ===== */
.loading-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-white);
    border-radius: var(--border-radius-xl);
    padding: 32px;
    max-width: 600px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    transform: translateY(20px) scale(0.95);
    transition: all var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.modal-header h2 {
    font-size: 1.25rem;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: var(--bg-body);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.modal-footer {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* ===== TOAST NOTIFICATION ===== */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: var(--border-radius);
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid;
    font-size: 14px;
    animation: slideInRight 0.3s ease;
    min-width: 300px;
}

.toast-success { border-left-color: var(--color-success); }
.toast-error { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

/* ===== SEARCH BAR (reusable) ===== */
.search-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 4px;
    transition: all var(--transition-fast);
}

.search-bar:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(78, 140, 255, 0.1);
}

.search-bar input {
    flex: 1;
    border: none;
    outline: none;
    padding: 8px 12px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    background: transparent;
}

.search-bar .btn {
    padding: 8px 16px;
}

/* ===== CARD (reusable) ===== */
.card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-header h3 i {
    color: var(--color-primary);
}

.card-header-link {
    font-size: 13px;
    color: var(--color-accent);
    font-weight: 500;
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-body);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* ===== FILTER BAR ===== */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 16px 20px;
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.filter-bar select,
.filter-bar input {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    background: var(--bg-white);
    transition: all var(--transition-fast);
}

.filter-bar select:focus,
.filter-bar input:focus {
    outline: none;
    border-color: var(--color-accent);
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }