/* style.css - Premium Stylesheet for License Management System */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --accent-gold: #d97706;
    --accent-gold-hover: #b45309;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --card-border: rgba(255, 255, 255, 0.08);
    --input-bg: #0b0f19;
    --error: #ef4444;
    --success: #10b981;
}

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

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

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-gold-hover);
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--card-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
}

header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

header h1 span {
    color: var(--accent-gold);
}

nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

nav a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

nav a.active, nav a:hover {
    color: var(--text-primary);
}

.logout-btn {
    padding: 0.5rem 1rem;
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 0.375rem;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.dashboard-container {
    width: 100%;
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 2.5rem;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3);
    animation: fadeIn 0.4s ease;
}

.card-wide {
    max-width: 100%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3);
    margin-bottom: 2rem;
}

.card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-align: center;
}

.card p.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.375rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.2);
}

.btn-primary {
    width: 100%;
    background-color: var(--accent-gold);
    color: white;
    border: none;
    border-radius: 0.375rem;
    padding: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

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

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    border-left: 4px solid transparent;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border-color: var(--error);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #a7f3d0;
    border-color: var(--success);
}

/* Grid & Tables for Admin Panel */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    padding: 1.5rem;
    text-align: left;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
}

.stat-card h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.table-responsive {
    overflow-x: auto;
    width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    font-size: 0.875rem;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

th {
    background-color: var(--input-bg);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Key display area */
.license-box {
    background-color: var(--input-bg);
    border: 1px dashed var(--accent-gold);
    border-radius: 0.5rem;
    padding: 1.25rem;
    margin: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.license-key-text {
    font-family: 'Courier New', Courier, monospace;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    overflow-x: auto;
    word-break: break-all;
    margin-right: 1rem;
}

.copy-btn {
    background-color: var(--accent-gold);
    color: white;
    border: none;
    border-radius: 0.25rem;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background-color: var(--accent-gold-hover);
}

.info-banner {
    background-color: rgba(217, 119, 6, 0.05);
    border: 1px solid rgba(217, 119, 6, 0.15);
    border-radius: 0.5rem;
    padding: 1rem;
    font-size: 0.875rem;
    color: #fde68a;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--card-border);
    margin-top: auto;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}