@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-color: #0b0c10;
    --card-bg: #14161d;
    --card-border: #21252e;
    --accent-color: #9d4edd;
    --accent-hover: #7b2cbf;
    --accent-glow: rgba(157, 78, 221, 0.4);
    --success-color: #06d6a0;
    --danger-color: #ff477e;
    --text-main: #f8f9fa;
    --text-muted: #8c92a4;
    --input-bg: #090a0f;
    --font-family: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: radial-gradient(circle at 80% 20%, rgba(157, 78, 221, 0.06), transparent 50%),
                      radial-gradient(circle at 20% 80%, rgba(6, 214, 160, 0.03), transparent 50%);
    background-attachment: fixed;
}

header {
    background: rgba(20, 22, 29, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    text-decoration: none;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 40%, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-accent {
    color: var(--accent-color);
}

nav {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease, background 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

nav a:hover, nav a.active {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

nav a.active {
    color: #fff;
    background: rgba(157, 78, 221, 0.15);
    border: 1px solid rgba(157, 78, 221, 0.2);
}

main {
    flex: 1;
    max-width: 1240px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.hero-section {
    margin-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    padding-bottom: 1.5rem;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff 50%, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-section p {
    color: var(--text-muted);
    font-size: 1.15rem;
    font-weight: 400;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1.25rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px var(--accent-glow);
}

.stat-title {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.04em;
}

.stat-value.accent {
    color: var(--accent-color);
    background: linear-gradient(135deg, #fff, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1.25rem;
    padding: 2.25rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: #fff;
    border: none;
    border-radius: 0.65rem;
    padding: 0.8rem 1.6rem;
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-color));
    box-shadow: 0 6px 20px var(--accent-glow);
    transform: translateY(-1px);
}

.btn:active {
    transform: scale(0.97);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    box-shadow: none;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-muted);
    box-shadow: none;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #d00000);
    box-shadow: 0 4px 14px rgba(255, 71, 126, 0.2);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #e01e5a, var(--danger-color));
    box-shadow: 0 6px 20px rgba(255, 71, 126, 0.3);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.6rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-control {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.65rem;
    padding: 0.85rem 1.15rem;
    color: #fff;
    font-family: var(--font-family);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    background-color: rgba(157, 78, 221, 0.02);
    box-shadow: 0 0 0 4px rgba(157, 78, 221, 0.1);
}

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

.table-responsive {
    overflow-x: auto;
    border-radius: 0.85rem;
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.01);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 1.15rem 1.5rem;
    border-bottom: 1px solid var(--card-border);
}

th {
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: rgba(255, 255, 255, 0.02);
}

td {
    font-size: 0.95rem;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.015);
}

.status-badge {
    display: inline-flex;
    padding: 0.35rem 0.9rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.status-active {
    background-color: rgba(6, 214, 160, 0.12);
    color: var(--success-color);
    border: 1px solid rgba(6, 214, 160, 0.2);
}

.status-used {
    background-color: rgba(255, 71, 126, 0.12);
    color: var(--danger-color);
    border: 1px solid rgba(255, 71, 126, 0.2);
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}