/**
 * Task Reward System - Premium Dark Theme
 * Mobile-first responsive design
 */

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-green: #00c853;
    --accent-orange: #ff6d00;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, rgba(0, 200, 83, 0.1), rgba(255, 109, 0, 0.1));
    border-radius: 20px;
    margin-bottom: 30px;
    border: 1px solid var(--glass-border);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.lang-switch {
    margin-top: 20px;
}

.lang-switch a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    margin: 0 5px;
    transition: all 0.3s;
}

.lang-switch a.active,
.lang-switch a:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

/* Progress Section */
.progress-section {
    margin-bottom: 30px;
}

.progress-bar {
    height: 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-orange));
    transition: width 0.5s ease;
}

.progress-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Info Cards */
.info-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.info-card.success {
    border-color: var(--accent-green);
}

.info-card.info {
    border-color: var(--accent-orange);
}

.info-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-secondary);
}

.info-card.success .info-icon {
    color: var(--accent-green);
}

.info-card.info .info-icon {
    color: var(--accent-orange);
}

.info-text {
    flex: 1;
}

/* Reward Section */
.reward-section {
    margin-bottom: 30px;
}

.reward-card {
    background: linear-gradient(135deg, rgba(0, 200, 83, 0.1), rgba(255, 109, 0, 0.1));
    border: 1px solid var(--accent-green);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
}

.reward-card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--accent-green);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: var(--accent-green);
}

/* Task List */
.task-list {
    display: grid;
    gap: 20px;
}

.task-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.task-header h3 {
    font-size: 1.2rem;
    flex: 1;
}

.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.waiting {
    background: rgba(255, 109, 0, 0.2);
    color: var(--accent-orange);
}

.badge.verifying {
    background: rgba(0, 200, 83, 0.2);
    color: var(--accent-green);
}

.badge.completed {
    background: rgba(0, 200, 83, 0.3);
    color: var(--accent-green);
}

.badge.not_eligible {
    background: rgba(255, 0, 0, 0.2);
    color: #ff4444;
}

.task-body {
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.task-body p {
    margin-bottom: 10px;
}

.channel-link {
    color: var(--accent-green);
    text-decoration: none;
    word-break: break-all;
}

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

.task-progress {
    margin-top: 10px;
    font-size: 0.9rem;
}

.task-footer {
    display: flex;
    gap: 10px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-orange));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 200, 83, 0.3);
}

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

.btn-secondary:hover {
    background: var(--glass-bg);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
}

.btn-reward {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-orange));
    color: white;
    width: 100%;
    font-size: 1.1rem;
}

.btn-reward:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 200, 83, 0.4);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* Task Detail Card */
.task-detail-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    max-width: 600px;
    margin: 0 auto;
}

.task-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.task-detail-header h2 {
    font-size: 1.5rem;
    flex: 1;
}

.task-detail-body {
    margin-bottom: 30px;
}

.task-detail-body p {
    margin-bottom: 15px;
}

.task-instructions {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
}

.task-instructions h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--accent-green);
}

.task-instructions ol {
    padding-left: 20px;
}

.task-instructions li {
    margin-bottom: 10px;
}

.task-detail-footer {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 40px;
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .task-footer,
    .task-detail-footer {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .task-card {
        padding: 15px;
    }
    
    .reward-card {
        padding: 20px;
    }
}