@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css');

/* ========== CSS VARIABLES ========== */
:root {
    /* Spacing Scale (8px system) */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Colors */
    --bg-primary: #050505;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #0a0a0a;
    --border-base: #333;
    --border-muted: #666;
    
    --accent-primary: #8EC07C;
    --accent-warning: #CA8553;
    --accent-error: #ff6b6b;
    
    --text-primary: #ffffff;
    --text-accent: #8EC07C;
    --text-muted: #999;
    --text-dimmed: #666;
    
    /* Typography Scale */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-md: 1.125rem;    /* 18px */
    --font-size-lg: 1.25rem;     /* 20px */
    --font-size-xl: 1.5rem;      /* 24px */
    --font-size-2xl: 2rem;       /* 32px */
    
    /* Button Sizes */
    --btn-padding-sm: var(--spacing-sm) var(--spacing-md);
    --btn-padding-md: 12px var(--spacing-lg);
    --btn-padding-lg: var(--spacing-md) var(--spacing-xl);
    
    /* Touch Targets */
    --min-touch-target: 44px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Courier New', monospace;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

/* ========== FAB MENU ========== */
.fab-menu {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    z-index: 1500;
}

.fab-toggle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(0,0,0,0.45);
    transition: background-color 0.2s ease, transform 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}

.fab-toggle i {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.fab-toggle.active {
    background: var(--accent-primary);
    color: var(--bg-primary);
    transform: rotate(90deg);
}

.fab-toggle:hover:not(.active) {
    background: #0d0d0d;
    transform: scale(1.02);
}

.fab-toggle:active {
    transform: scale(0.95);
}

.fab-drawer {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    background: rgba(5, 5, 5, 0.95);
    border: 1px solid #8EC07C;
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.5);
    backdrop-filter: blur(6px);
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s linear 0s;
    visibility: visible;
}

.fab-drawer[hidden] {
    opacity: 0;
    transform: translateY(-10px);
    visibility: hidden;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s linear 0.25s;
}

.fab-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    min-height: var(--min-touch-target);
    border-radius: 10px;
    color: var(--accent-primary);
    text-decoration: none;
    border: 1px solid transparent;
    transition: background-color 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}

.fab-link i {
    font-size: var(--font-size-md);
}

.fab-link:hover {
    background: rgba(142, 192, 124, 0.12);
    border-color: rgba(142, 192, 124, 0.3);
    transform: scale(1.02);
}

.fab-link:active {
    transform: scale(0.98);
}

/* ========== LOGIN PAGE ========== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
}

.login-box {
    background-color: var(--bg-tertiary);
    border: 2px solid var(--accent-primary);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.login-box h1 {
    font-size: var(--font-size-2xl);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
}

.form-group {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.form-group label {
    display: block;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.form-group input {
    width: 100%;
    padding: 12px var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-base);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-base);
}

.form-group input:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-color: var(--accent-primary);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    width: 100%;
    padding-right: 45px;
}

.toggle-password {
    position: absolute;
    right: 5px;
    background: none;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-lg);
    transition: opacity 0.2s ease;
}

.toggle-password:hover {
    opacity: 0.7;
}

.eye-icon {
    display: inline-block;
    user-select: none;
}

#login-button {
    width: 100%;
    padding: var(--btn-padding-md);
    background-color: var(--bg-primary);
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-base);
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
    margin-top: var(--spacing-sm);
    min-height: var(--min-touch-target);
}

#login-button:hover:not(:disabled) {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    transform: scale(1.02);
}

#login-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.error-message {
    background-color: #2a1515;
    border: 1px solid var(--accent-error);
    color: var(--accent-error);
    padding: var(--spacing-sm);
    margin-top: var(--spacing-md);
    border-radius: 4px;
    font-size: var(--font-size-sm);
}

.back-link {
    display: inline-block;
    margin-top: var(--spacing-lg);
    color: var(--accent-primary);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.back-link:hover {
    opacity: 0.8;
}

/* ========== ADMIN DASHBOARD ========== */
.admin-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--bg-tertiary);
    border-right: 2px solid var(--border-base);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

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

.sidebar-header h2 {
    color: var(--accent-primary);
    font-size: var(--font-size-xl);
}

.sidebar-header p {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.sidebar-nav {
    flex: 1;
}

.nav-item {
    display: block;
    padding: 12px;
    color: var(--text-primary);
    text-decoration: none;
    border-left: 3px solid transparent;
    margin-bottom: var(--spacing-xs);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    min-height: var(--min-touch-target);
    display: flex;
    align-items: center;
}

.nav-item:hover,
.nav-item.active {
    background-color: var(--bg-secondary);
    border-left-color: var(--accent-primary);
    color: var(--accent-primary);
}

.logout-button {
    width: 100%;
    padding: var(--btn-padding-md);
    background-color: var(--bg-primary);
    border: 2px solid var(--accent-error);
    color: var(--accent-error);
    font-family: 'Courier New', monospace;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
    min-height: var(--min-touch-target);
}

.logout-button:hover {
    background-color: var(--accent-error);
    color: var(--bg-primary);
    transform: scale(1.02);
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.content-section h1 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-2xl);
    border-bottom: 2px solid var(--border-base);
    padding-bottom: var(--spacing-sm);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-base);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 4px 12px rgba(142, 192, 124, 0.15);
}

.stat-card h3 {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    color: var(--accent-primary);
    font-size: var(--font-size-2xl);
    font-weight: bold;
}

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

.conversation-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-base);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
}

.conversation-item:hover {
    border-color: var(--accent-primary);
    background-color: #222;
    transform: translateX(2px);
}

.conversation-item.unread {
    border-left: 4px solid var(--accent-primary);
}

.conversation-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.conversation-name {
    color: var(--accent-primary);
    font-weight: bold;
}

.conversation-date {
    color: var(--text-dimmed);
    font-size: var(--font-size-sm);
}

.conversation-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-size: var(--font-size-xs);
    margin-left: var(--spacing-sm);
}

.conversation-status.completed {
    background-color: #2a4a2a;
    color: var(--accent-primary);
}

.conversation-status.active {
    background-color: #4a4a2a;
    color: var(--accent-warning);
}

.conversation-status.abandoned {
    background-color: #4a2a2a;
    color: var(--accent-error);
}

/* Filters */
.filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filters select,
.filters input {
    padding: 12px var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-base);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-base);
}

.filters select:focus,
.filters input:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-color: var(--accent-primary);
}

.filters button {
    padding: var(--btn-padding-md);
    background-color: var(--bg-primary);
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    font-family: 'Courier New', monospace;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
    min-height: var(--min-touch-target);
}

.filters button:hover {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    transform: scale(1.02);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.page-button {
    padding: var(--spacing-sm) 12px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-base);
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    min-height: var(--min-touch-target);
    min-width: var(--min-touch-target);
}

.page-button:hover,
.page-button.active {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
}

/* Settings */
.settings-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.tab-button {
    padding: var(--btn-padding-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-base);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    min-height: var(--min-touch-target);
}

.tab-button.active {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
}

#settings-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-base);
    padding: var(--spacing-lg);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--bg-tertiary);
    border: 2px solid var(--accent-primary);
    padding: var(--spacing-xl);
    max-width: 800px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-lg);
    font-size: var(--font-size-2xl);
    color: var(--accent-primary);
    cursor: pointer;
    transition: color 0.2s ease;
}

.close-modal:hover {
    color: var(--accent-error);
}

/* Responsive */
@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 2px solid var(--border-base);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
    }
}

/* ========== ACCESSIBILITY ========== */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

button:focus-visible,
.fab-toggle:focus-visible {
    outline: 3px solid var(--accent-primary);
    outline-offset: 3px;
}

/* Loading states */
.loading {
    opacity: 0.6;
    cursor: wait;
    pointer-events: none;
}

button.loading::after {
    content: '...';
    animation: ellipsis 1.5s infinite;
}

@keyframes ellipsis {
    0% { content: '.'; }
    33% { content: '..'; }
    66% { content: '...'; }
}