:root {
    --bg-primary: #08090d;
    --bg-glass: rgba(255, 255, 255, 0.02);
    --border-glass: rgba(255, 255, 255, 0.06);
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --accent: #10b981;
    --accent-dark: #059669;
    --accent-glow: rgba(16, 185, 129, 0.4);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 2rem 1.25rem 8rem;
}

/* Glass effect */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
}

/* Header */
.header {
    margin-bottom: 2.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    padding: 0.625rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 1rem;
    color: var(--accent);
    filter: drop-shadow(0 0 15px rgba(16, 185, 129, 0.1));
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo p {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(16, 185, 129, 0.6);
    font-weight: 700;
}

/* Stats Card */
.stats-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.stats-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.user-icon {
    width: 3.5rem;
    height: 3.5rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.1);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

.stats-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

.status-dot {
    position: relative;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--accent);
}

.status-dot::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: var(--accent);
    animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

#status {
    color: var(--accent);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.stat-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.stat-label svg {
    color: var(--text-tertiary);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-value .highlight {
    color: var(--accent);
}

.stat-value .stat-unit {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-tertiary);
}

/* Setup Section */
.setup-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.25rem;
}

.section-header h2 {
    font-size: 1.125rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-header h2 svg {
    color: var(--accent);
    fill: var(--accent);
}

.section-header span {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    color: var(--accent);
}

/* Step Card */
.step-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 1.5rem;
    padding: 1.25rem;
}

.step-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.step-number {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.step-header h4 {
    font-weight: 700;
    font-size: 0.9375rem;
    margin-bottom: 0.125rem;
}

.step-header p {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Platform Grid */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.platform-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    padding: 1rem 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.platform-icon {
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
    transition: all 0.2s;
}

.platform-btn span {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

.platform-btn:hover {
    background: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--text-primary);
}

.platform-btn:hover .platform-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

.platform-btn:active {
    transform: scale(0.98);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-primary {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border: none;
    border-radius: 1rem;
    font-weight: 700;
    font-size: 0.875rem;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.1);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.btn-secondary.copied {
    color: var(--accent);
    border-color: var(--accent);
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(to top, var(--bg-primary) 0%, var(--bg-primary) 70%, transparent 100%);
    pointer-events: none;
}

.btn-support {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    pointer-events: auto;
}

.btn-support svg {
    color: var(--accent);
}

.btn-support:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-support:hover svg {
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

.btn-support:active {
    transform: scale(0.98);
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 1.5rem 1rem 8rem;
    }
}

.platform-android .platform-icon svg {
    color: #3DDC84;
}

.platform-android:hover .platform-icon {
    color: #3DDC84;
}

.platform-windows .platform-icon svg {
    color: #0078D4;
}

.platform-windows:hover .platform-icon {
    color: #0078D4;
}

/* Steps badge highlighting */
.steps-badge {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    color: var(--accent);
}

/* Traffic Warning */
.traffic-warning {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 1rem;
    padding: 0.875rem 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #EF4444;
    font-size: 0.875rem;
    font-weight: 600;
    animation: pulse-red 2s ease-in-out infinite;
}

.traffic-warning svg {
    flex-shrink: 0;
}

@keyframes pulse-red {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    }
}

/* Paused status */
.status-badge.status-paused #status {
    color: #F59E0B;
}

.status-badge.status-paused .status-dot {
    background: #F59E0B;
}

.status-badge.status-paused .status-dot::before {
    background: #F59E0B;
}

/* Expired status */
.status-badge.status-expired #status {
    color: #EF4444;
}

.status-badge.status-expired .status-dot {
    background: #EF4444;
}

.status-badge.status-expired .status-dot::before {
    background: #EF4444;
}

/* Traffic exhausted */
.stat-item.traffic-exhausted .stat-value .highlight {
    color: #EF4444;
    animation: pulse-glow-red 2s ease-in-out infinite;
}

.stat-item.traffic-exhausted .stat-value .stat-unit {
    color: #EF4444;
}

@keyframes pulse-glow-red {
    0%, 100% {
        filter: drop-shadow(0 0 4px rgba(239, 68, 68, 0.6));
    }
    50% {
        filter: drop-shadow(0 0 12px rgba(239, 68, 68, 0.9));
    }
}