:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --success: #10b981;
    --danger: #ef4444;
    --info: #3b82f6;
    --radius: 12px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Navbar */
.navbar {
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    background: rgba(15, 23, 42, 0.8);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.6rem;
}

.nav-badges {
    display: flex;
    gap: 10px;
}

.badge {
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #34d399;
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* Content Layout */
.content {
    flex: 1;
    padding-top: 40px;
    padding-bottom: 40px;
}

.hero {
    text-align: center;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Grid & Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.2);
}

.full-width {
    grid-column: 1 / -1;
}

.card-header {
    margin-bottom: 16px;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.card-body p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.5;
}

/* Forms & Buttons */
.form-group {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.input-field {
    flex: 1;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.input-field:focus {
    border-color: var(--primary);
}

.btn {
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary { background: rgba(255, 255, 255, 0.1); color: var(--text-primary); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.2); }

.btn-success { background: var(--success); color: white; }
.btn-success:hover { opacity: 0.9; }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }

.btn-sm { padding: 6px 12px; font-size: 0.85rem; }

.btn-group {
    display: flex;
    justify-content: center;
    gap: 12px;
}

/* Result & Counter */
.result-box {
    background: rgba(15, 23, 42, 0.8);
    border-radius: 8px;
    padding: 12px;
    font-size: 0.9rem;
    border-left: 3px solid var(--primary);
}

.hidden { display: none; }

.counter-display {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary);
    margin: 10px 0 20px;
}

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

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.info-item {
    background: rgba(15, 23, 42, 0.5);
    padding: 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.info-value {
    font-size: 1rem;
    font-weight: 600;
}

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

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}