/* Connective - Unified Dark Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@700&display=swap');

:root {
    --bg-dark: #050505;
    --bg-medium: #111111;
    --bg-light: #1a1a1a;
    --text-primary: #f0f0f0;
    --text-secondary: #888888;
    --accent-blue: #00aaff;
    --accent-glow: rgba(0, 170, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(17, 17, 17, 0.5);
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

body::before {
    content: '';
    position: fixed;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle at 30% 30%, var(--accent-glow) 0%, transparent 30%),
                radial-gradient(circle at 70% 70%, rgba(100, 80, 200, 0.1) 0%, transparent 30%);
    animation: background-glow 30s ease-in-out infinite;
    z-index: 0;
    pointer-events: none;
}

@keyframes background-glow {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-5%, -5%); }
}

/* Navigation */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.top-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.top-nav a:hover {
    color: var(--text-primary);
    background: var(--accent-glow);
}

.top-nav a.active {
    color: var(--accent-blue);
}

/* Container */
.container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 1.5rem 2rem;
    min-height: 100vh;
}

.container-narrow {
    max-width: 700px;
}

/* Headers */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    margin-bottom: 1.5rem;
}

.card-header {
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-medium);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-select option {
    background: var(--bg-medium);
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #0088cc 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 170, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 170, 255, 0.4);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-light);
    border-color: var(--accent-blue);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
}

.btn-full {
    width: 100%;
}

/* Profile Grid */
.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.profile-card {
    background: var(--bg-medium);
    border: 2px solid var(--glass-border);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.profile-card:hover {
    border-color: var(--accent-blue);
    background: var(--glass-bg);
}

.profile-card.selected {
    border-color: var(--accent-blue);
    background: var(--accent-glow);
}

.profile-checkbox {
    width: 22px;
    height: 22px;
    border: 2px solid var(--glass-border);
    border-radius: 6px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.profile-card.selected .profile-checkbox {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.profile-checkbox::after {
    content: '';
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.2s;
}

.profile-card.selected .profile-checkbox::after {
    opacity: 1;
}

.profile-info {
    flex: 1;
    min-width: 0;
}

.profile-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.profile-email {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Chat Interface */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 8rem);
    max-height: 800px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-message {
    max-width: 85%;
    padding: 1rem 1.25rem;
    border-radius: 18px;
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}

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

.chat-message.assistant {
    background: var(--bg-light);
    border: 1px solid var(--glass-border);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-message.user {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #0088cc 100%);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.chat-input-area {
    padding: 1rem 1.5rem;
    background: var(--bg-medium);
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.chat-input {
    flex: 1;
    padding: 0.875rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
}

.chat-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Tables Display */
.tables-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.table-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    backdrop-filter: blur(25px);
}

.table-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.table-number {
    width: 36px;
    height: 36px;
    background: var(--accent-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.table-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.table-guests {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.guest-name {
    padding: 0.5rem 0.75rem;
    background: var(--bg-medium);
    border-radius: 8px;
    font-size: 0.9rem;
}

.table-connection {
    padding: 1rem;
    background: var(--accent-glow);
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.table-connection strong {
    color: var(--accent-blue);
}

/* Selection Header */
.selection-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.selection-count {
    font-weight: 500;
}

.selection-count span {
    color: var(--accent-blue);
    font-weight: 700;
}

.selection-actions a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
}

.selection-actions a:hover {
    text-decoration: underline;
}

/* Loading State */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Voice Button States */
.voice-btn {
    position: relative;
}

.voice-btn.listening {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0); }
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

/* Responsive */
@media (max-width: 768px) {
    .top-nav {
        padding: 0.5rem 1rem;
        gap: 0.5rem;
    }
    
    .top-nav a {
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
    }
    
    .container {
        padding: 4.5rem 1rem 1.5rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .card {
        padding: 1.5rem;
        border-radius: 18px;
    }
    
    .profile-grid {
        grid-template-columns: 1fr;
    }
    
    .tables-container {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.hidden { display: none !important; }