/* =============================================
   EM NUÔI - Main Stylesheet
   Vietnamese charity platform - Mobile First
   ============================================= */

/* CSS Variables */
:root {
    /* Colors - Warm & Approachable */
    --color-primary: #e74c3c;
    --color-primary-dark: #c0392b;
    --color-primary-light: #f1948a;
    --color-secondary: #3498db;
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-danger: #e74c3c;

    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-text-muted: #95a5a6;

    --color-bg: #f8f9fa;
    --color-bg-white: #ffffff;
    --color-bg-light: #ecf0f1;
    --color-border: #dfe6e9;

    /* Typography */
    --font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-sm: 14px;
    --font-size-xs: 12px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 50%;

    /* Shadows */
    --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 24px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition: 0.2s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--color-primary-dark);
}

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

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

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-main {
    display: none;
    gap: var(--spacing-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.header-actions {
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
}

.mobile-menu-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-sm);
}

@media (min-width: 768px) {
    .nav-main {
        display: flex;
    }

    .header-actions {
        display: flex;
    }

    .mobile-menu-btn {
        display: none;
    }
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

.user-btn:hover {
    background: var(--color-bg-light);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    display: none;
    z-index: 200;
}

.user-dropdown.show {
    display: block;
}

.dropdown-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.dropdown-header strong {
    display: block;
}

.dropdown-header small {
    color: var(--color-text-muted);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--color-text);
}

.dropdown-item:hover {
    background: var(--color-bg-light);
}

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

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-white);
    z-index: 1000;
    transform: translateX(-100%);
    transition: var(--transition);
}

.mobile-menu.show {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu-header button {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav a {
    display: block;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: var(--font-size-lg);
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
    min-width: 44px;
}

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

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

.btn-outline {
    background: transparent;
    border-color: var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-success {
    background: var(--color-success);
    color: white;
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

/* =============================================
   FORMS
   ============================================= */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group .required {
    color: var(--color-danger);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group small {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.form-row {
    display: grid;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

legend {
    font-weight: 600;
    padding: 0 var(--spacing-sm);
}

/* =============================================
   FLASH MESSAGES
   ============================================= */
.flash-messages {
    position: fixed;
    top: 80px;
    right: var(--spacing-md);
    z-index: 500;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
    /* Allow clicks to pass through container */
    max-width: 350px;
}

.flash {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-md);
    min-width: 280px;
    animation: slideIn 0.3s ease;
    pointer-events: auto;
    /* Flash messages are still interactive */
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.flash-success {
    border-left: 4px solid var(--color-success);
}

.flash-error {
    border-left: 4px solid var(--color-danger);
}

.flash-warning {
    border-left: 4px solid var(--color-warning);
}

.flash-info {
    border-left: 4px solid var(--color-secondary);
}

.flash button {
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
}

/* =============================================
   MAIN CONTENT
   ============================================= */
.main-content {
    min-height: calc(100vh - 200px);
}

/* =============================================
   HOMEPAGE - TRANG CHỦ
   ============================================= */
.hero-stats {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    padding: var(--spacing-lg);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Main Grid */
.main-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .main-grid {
        grid-template-columns: 250px 1fr;
    }
}

/* Sidebar Filter */
.sidebar-filter {
    display: none;
}

@media (min-width: 1024px) {
    .sidebar-filter {
        display: block;
    }
}

.filter-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.filter-card h3 {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-group {
    margin-bottom: var(--spacing-md);
}

.filter-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.filter-group select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.radio-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

/* Feed Section */
.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
}

.ho-so-grid {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .ho-so-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .ho-so-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Profile Card */
.ho-so-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.ho-so-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.ho-so-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.ho-so-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ho-so-image .no-image {
    width: 100%;
    height: 100%;
    background: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-text-muted);
}

.ho-so-image .badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(39, 174, 96, 0.9);
    color: white;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
}

.ho-so-body {
    padding: var(--spacing-md);
}

.ho-so-name {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.ho-so-name a {
    color: var(--color-text);
}

.ho-so-info {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.ho-so-school {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

/* Progress Bar */
.progress-section {
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    height: 8px;
    background: var(--color-bg-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-success), #2ecc71);
    transition: width 0.5s ease;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.progress-percent {
    font-weight: 600;
    color: var(--color-success);
}

.ho-so-stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.ho-so-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.ho-so-actions .btn {
    flex: 1;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.page-link {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-white);
    border-radius: var(--radius-sm);
}

.page-info {
    color: var(--color-text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

/* =============================================
   PROFILE DETAIL PAGE
   ============================================= */
.page-chi-tiet {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.breadcrumb {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.breadcrumb a {
    color: var(--color-text-muted);
}

.detail-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .detail-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Image Slider */
.image-slider {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.main-image {
    aspect-ratio: 1;
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-thumbs {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    overflow-x: auto;
}

.image-thumbs img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition);
}

.image-thumbs img.active,
.image-thumbs img:hover {
    opacity: 1;
}

.no-image-large {
    aspect-ratio: 1;
    background: var(--color-bg-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.no-image-large i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

/* Detail Info */
.detail-info {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.info-header h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.profile-code {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.info-meta {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.info-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.verification-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(39, 174, 96, 0.1);
    color: var(--color-success);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.school-info {
    background: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
}

.school-info h4 {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.donation-progress {
    margin-bottom: var(--spacing-lg);
}

.donation-progress h4 {
    margin-bottom: var(--spacing-sm);
}

.progress-bar-large {
    height: 12px;
    background: var(--color-bg-light);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-bar-large .progress-fill {
    height: 100%;
}

.progress-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    text-align: center;
}

.progress-details .label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.progress-details .value {
    display: block;
    font-weight: 600;
}

.progress-details .highlight {
    color: var(--color-primary);
}

.donors-count {
    margin-top: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.secondary-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.secondary-actions .btn {
    flex: 1;
}

.success-message {
    background: rgba(39, 174, 96, 0.1);
    color: var(--color-success);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* Liked state */
.fa-heart.liked {
    color: var(--color-primary);
}

/* Story Section */
.story-section,
.updates-section,
.donors-section,
.comments-section {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.story-section h2,
.updates-section h2,
.donors-section h2,
.comments-section h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.story-content {
    line-height: 1.8;
    white-space: pre-wrap;
}

/* Updates */
.update-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.update-item:last-child {
    border-bottom: none;
}

.update-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

/* Donors List */
.donor-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.donor-item:last-child {
    border-bottom: none;
}

.donor-amount {
    font-weight: 600;
    color: var(--color-success);
}

.donor-date {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Comments */
.comment-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.comment-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    resize: vertical;
    min-height: 80px;
}

.login-prompt {
    background: var(--color-bg-light);
    padding: var(--spacing-md);
    text-align: center;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
}

.comment-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.comment-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.author-avatar {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.author-name {
    font-weight: 500;
}

.comment-date {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.comment-text {
    margin-left: 40px;
}

/* =============================================
   AUTH PAGES
   ============================================= */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    padding: var(--spacing-lg);
}

.auth-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.auth-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.auth-header h1 {
    margin-bottom: var(--spacing-xs);
}

.auth-header p {
    color: var(--color-text-muted);
}

.auth-form {
    margin-bottom: var(--spacing-lg);
}

.auth-footer {
    text-align: center;
    color: var(--color-text-muted);
}

/* =============================================
   FORM PAGES
   ============================================= */
.form-page {
    padding: var(--spacing-lg);
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.form-header h1 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.info-box {
    background: rgba(52, 152, 219, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.info-box h4 {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.info-box ul {
    margin-left: var(--spacing-lg);
}

.field-note {
    color: var(--color-warning);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.form-actions {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.form-note {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

.image-preview {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.image-preview img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

/* =============================================
   MINH BẠCH PAGE
   ============================================= */
.page-minh-bach {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.page-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-card .stat-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
}

.stat-card .stat-label {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.highlight-box {
    background: rgba(231, 76, 60, 0.05);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.highlight-box h4 {
    margin-bottom: var(--spacing-sm);
}

.highlight-box ul {
    margin-left: var(--spacing-lg);
}

.transactions-section h2 {
    margin-bottom: var(--spacing-lg);
}

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    background: var(--color-bg-light);
    font-weight: 600;
}

.data-table .amount {
    font-weight: 600;
    color: var(--color-success);
}

/* =============================================
   GIỚI THIỆU PAGE
   ============================================= */
.page-gioi-thieu {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.intro-hero {
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.intro-hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.tagline {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

.intro-section {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.intro-section h2 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-primary);
}

.features-grid {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.feature-card {
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-text-light);
}

.amount-info {
    text-align: center;
}

.amount-card {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.amount-value {
    font-size: 2rem;
    font-weight: 700;
}

.amount-label {
    font-size: var(--font-size-sm);
}

.cta-section {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

/* =============================================
   ADMIN PAGES
   ============================================= */
.admin-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.admin-header {
    margin-bottom: var(--spacing-xl);
}

.admin-header h1 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.admin-stats .stat-card.alert {
    background: rgba(231, 76, 60, 0.1);
    border: 2px solid var(--color-primary);
}

.admin-actions h2 {
    margin-bottom: var(--spacing-md);
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: var(--transition);
}

.action-card:hover {
    background: var(--color-primary);
    color: white;
}

.action-card i {
    font-size: 2rem;
}

/* Pending List */
.pending-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.pending-card {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: var(--spacing-md);
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    align-items: center;
}

@media (max-width: 768px) {
    .pending-card {
        grid-template-columns: 1fr;
    }
}

.pending-image img,
.pending-image .no-image {
    width: 120px;
    height: 90px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.pending-image .no-image {
    background: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.pending-info h3 {
    margin-bottom: var(--spacing-xs);
}

.pending-info .meta {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.pending-info .story {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin: var(--spacing-sm) 0;
}

.pending-info .date {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.pending-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Donation Card */
.donation-card {
    grid-template-columns: 150px 1fr auto;
}

.donation-receipt img {
    width: 150px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.no-receipt {
    width: 150px;
    height: 100px;
    background: var(--color-bg-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.donation-info .amount {
    font-size: 1.25rem;
    color: var(--color-success);
    margin-bottom: var(--spacing-sm);
}

/* =============================================
   POPUP
   ============================================= */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.popup-overlay.show {
    display: flex;
}

.popup-content {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.popup-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
}

.popup-header {
    padding: var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.popup-body {
    padding: var(--spacing-lg);
}

.donation-step {
    margin-bottom: var(--spacing-lg);
}

.donation-step h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.amount-options {
    display: grid;
    gap: var(--spacing-sm);
}

.amount-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.amount-option:has(input:checked) {
    border-color: var(--color-primary);
    background: rgba(231, 76, 60, 0.05);
}

.bank-info {
    background: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
}

.bank-info p {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.bank-info strong {
    min-width: 120px;
}

.transfer-content {
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    text-align: center;
    font-family: monospace;
    font-size: var(--font-size-lg);
    margin: var(--spacing-md) 0;
}

.copy-btn {
    background: var(--color-bg-white);
    color: var(--color-text);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--color-text);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-brand {
    margin-bottom: var(--spacing-lg);
}

.footer-brand .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    opacity: 0.7;
    margin-top: var(--spacing-xs);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    margin-bottom: var(--spacing-sm);
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: var(--font-size-sm);
    opacity: 0.7;
}