/* ===== CSS Variables & Reset ===== */
:root {
    --bg-gradient-start: #0b0f1a;
    --bg-gradient-end: #1a1f2e;
    --glass-bg: rgba(20, 30, 45, 0.3);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.6);
    --card-bg: rgba(18, 25, 35, 0.7);
    --text-primary: #ffffff;
    --text-secondary: #b0c0d0;
    --accent-primary: #3b82f6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-error: #ef4444;
    --font-sans: 'Inter', 'Roboto', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --border-radius: 24px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: var(--font-sans);
    background: linear-gradient(145deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow-x: hidden;
}

.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 40%, rgba(59, 130, 246, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.1) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Glass Header ===== */
.glass-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 28px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    box-shadow: var(--glass-shadow);
    margin-bottom: 40px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-text {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff, #a0b0c0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
    border-radius: 40px;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #9ac7ff;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.clock-wib {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    background: rgba(0, 0, 0, 0.25);
    padding: 6px 14px;
    border-radius: 40px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(4px);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: 0 0 10px currentColor;
}

.status-indicator.online {
    background: var(--accent-success);
    box-shadow: 0 0 15px var(--accent-success);
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    margin: 20px 0 40px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #ffffff, #b0d0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Cards & Glassmorphism ===== */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow), 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: 0 30px 50px -20px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.token-card {
    padding: 32px;
    margin: 20px 0;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 500;
    color: #fff;
}

.card-badge {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 40px;
    padding: 6px 16px;
    font-size: 0.85rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== Input Group ===== */
.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.input-wrapper {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.input-wrapper input {
    flex: 1 1 300px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 40px;
    padding: 14px 20px;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: #fff;
    outline: none;
    transition: var(--transition);
}

.input-wrapper input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
    background: rgba(0, 0, 0, 0.5);
}

.btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 40px;
    padding: 14px 28px;
    font-weight: 600;
    font-size: 1rem;
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.btn.primary {
    background: var(--accent-primary);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 20px -8px var(--accent-primary);
}

.btn.primary:hover {
    background: #2563eb;
    transform: scale(1.02);
}

.input-hint {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Token Panel ===== */
.token-panel {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.token-panel.hidden {
    display: none;
}

.token-display {
    text-align: center;
    margin-bottom: 28px;
}

.token-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
}

.token-code {
    font-family: var(--font-mono);
    font-size: 4.5rem;
    font-weight: 600;
    line-height: 1.2;
    background: linear-gradient(135deg, #fff, #c0d0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 4px;
    text-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

.token-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.remaining-box {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 40px;
    padding: 8px 24px;
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.remaining-seconds {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 600;
    color: var(--accent-success);
}

.remaining-unit {
    font-size: 1rem;
    color: var(--text-secondary);
}

.progress-container {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 40px;
    overflow: hidden;
    min-width: 200px;
}

.progress-bar {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--accent-primary), #60a5fa);
    border-radius: 40px;
    transition: width 0.2s linear;
}

/* ===== Alert System ===== */
.alert-container {
    position: fixed;
    top: 100px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
}

.alert {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 16px 24px;
    color: #fff;
    font-weight: 500;
    box-shadow: 0 20px 40px -12px black;
    animation: slideIn 0.3s ease forwards;
    border-left: 6px solid transparent;
}

.alert.success {
    border-left-color: var(--accent-success);
}
.alert.error {
    border-left-color: var(--accent-error);
}
.alert.warning {
    border-left-color: var(--accent-warning);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Footer ===== */
.footer {
    margin-top: auto;
    text-align: center;
    padding: 32px 0 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .glass-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .hero-title {
        font-size: 2rem;
    }
    .token-code {
        font-size: 3rem;
    }
    .input-wrapper {
        flex-direction: column;
    }
    .alert-container {
        left: 24px;
        right: 24px;
        max-width: none;
    }
}