/* CSS Variables for Theme */
:root {
    --primary-color: #667eea;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-color: #f093fb;
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --error-color: #f87171;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo i {
    font-size: 2rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Main Content */
.main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.card-header h2 i {
    color: var(--primary-color);
    font-size: 1.1em;
}

.card-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

/* Forms */
.card-content {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.keyword-input-container {
    display: flex;
    gap: 0.5rem;
}

input[type="text"] {
    flex: 1;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 400;
    transition: all 0.3s ease;
    min-height: 48px;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(102 126 234 / 0.1);
    transform: translateY(-1px);
}

input[type="text"]:hover {
    border-color: var(--primary-color);
}

input[type="number"], select {
    flex: 1;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 400;
    transition: all 0.3s ease;
    min-height: 48px;
    width: 100%;
}

input[type="number"]:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(102 126 234 / 0.1);
    transform: translateY(-1px);
}

input[type="number"]:hover, select:hover {
    border-color: var(--primary-color);
}

.help-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.btn-add {
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-lg);
    padding: 0.875rem 1.25rem;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    min-height: 48px;
    white-space: nowrap;
}

.btn-add:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.05);
}

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

.keywords-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.keyword-tag {
    background: var(--primary-gradient);
    color: white;
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-lg);
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.keyword-tag button {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.25rem;
    font-size: 0.75rem;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.keyword-tag button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}



/* Buttons */
.btn-primary {
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    font-size: 1rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-secondary {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    font-size: 1rem;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-execute {
    background: var(--success-color);
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    font-size: 1rem;
}

.btn-execute:hover {
    background: #22c55e;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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



/* Progress */
.progress-content {
    padding: 2rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Results */
.results-actions {
    display: flex;
    gap: 0.5rem;
}

.results-content {
    padding: 2rem;
}

.results-summary {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 500;
}

.results-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
}

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

.results-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.results-table tr:hover {
    background: var(--bg-secondary);
}

.channel-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.channel-link:hover {
    text-decoration: underline;
}

.twitter-link {
    color: #1da1f2;
    text-decoration: none;
}

.twitter-link:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-spinner {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        padding: 1rem;
    }
    
    .logo h1 {
        font-size: 1.25rem;
    }
    
    .main {
        padding: 1rem;
    }
    
    .card-content {
        padding: 1.5rem;
    }
    
    .keyword-input-container {
        flex-direction: column;
    }
    
    .results-table {
        font-size: 0.875rem;
    }
    
    .results-table th,
    .results-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .logo {
        flex-direction: column;
        text-align: center;
    }
    
    .card-content {
        padding: 1rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.5s ease;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

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

.text-success {
    color: var(--success-color);
}

.text-warning {
    color: var(--warning-color);
}

.text-error {
    color: var(--error-color);
}

/* Scheduler Styles */
.scheduler-card {
    margin-bottom: 2rem;
}

.scheduler-content {
    padding: 1.5rem;
}

.scheduler-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

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

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}

.status-dot.running {
    background-color: var(--success-color);
}

.status-dot.stopped {
    background-color: var(--error-color);
    animation: none;
}

.status-text {
    font-weight: 500;
    color: var(--text-primary);
}

.scheduler-info {
    text-align: right;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.scheduler-info p {
    margin: 0.25rem 0;
}

.scheduler-settings {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.time-input-container {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-top: 0.5rem;
}

.time-input-container input[type="time"] {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.time-input-container input[type="time"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-save {
    padding: 0.75rem 1rem;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-save:hover {
    background: #22c55e;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.help-text {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.scheduler-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.scheduler-actions button {
    flex: 1;
    min-width: 140px;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Responsive adjustments for scheduler */
@media (max-width: 768px) {
    .scheduler-status {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .scheduler-info {
        text-align: center;
    }
    
    .scheduler-actions {
        flex-direction: column;
    }
    
    .scheduler-actions button {
        min-width: auto;
    }
}