:root {
    --bg: #f4f1ec;
    --bg-alt: #eef2f7;
    --surface: #ffffff;
    --surface-elev: #fdfbf8;
    --text: #1c2430;
    --muted: #586174;
    --border: #e3e7ef;
    --accent: #2d6cdf;
    --accent-2: #f29d4b;
    --success: #1e9e6a;
    --warning: #d97706;
    --danger: #d64545;
    --shadow: 0 10px 30px rgba(27, 39, 54, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
    color: var(--text);
    background: radial-gradient(1200px 500px at 10% -20%, #ffffff 0%, #f7f2ec 45%, transparent 60%),
        radial-gradient(1000px 600px at 90% -30%, #e7f0ff 0%, #f4f1ec 55%, transparent 70%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
    min-height: 100vh;
}

a {
    color: inherit;
}

h1, h2, h3, h4 {
    font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
}

p {
    margin: 0 0 10px;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 16px 28px;
    position: sticky;
    top: 0;
    z-index: 10;
    background: linear-gradient(120deg, #1f2532 0%, #202a3f 45%, #1a1f2b 100%);
    color: white;
    box-shadow: 0 12px 24px rgba(12, 18, 30, 0.25);
}

.nav-left h3 {
    margin: 0;
    font-size: 1.1rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.nav-right a {
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    font-weight: 500;
    padding: 6px 10px;
    border-radius: 999px;
    transition: all 0.2s ease;
}

.nav-right a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.16);
}

/* Layout */
.container {
    padding: 28px;
    max-width: 1200px;
    margin: 0 auto;
}

.surface {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge.success {
    background: rgba(30, 158, 106, 0.12);
    color: var(--success);
}

.badge.warning {
    background: rgba(217, 119, 6, 0.14);
    color: var(--warning);
}

.badge.danger {
    background: rgba(214, 69, 69, 0.12);
    color: var(--danger);
}

.empty, .error, .notice {
    padding: 22px;
    border-radius: 14px;
    border: 1px dashed var(--border);
    background: var(--surface-elev);
    color: var(--muted);
}

.notice.success {
    border-color: rgba(30, 158, 106, 0.3);
    color: var(--success);
    background: rgba(30, 158, 106, 0.08);
}

.error {
    color: var(--danger);
    background: rgba(214, 69, 69, 0.08);
    border-color: rgba(214, 69, 69, 0.3);
}

/* Forms */
form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

label {
    font-weight: 600;
    color: var(--text);
}

input, select, textarea {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: white;
    font-family: inherit;
    font-size: 14px;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: rgba(45, 108, 223, 0.7);
    box-shadow: 0 0 0 3px rgba(45, 108, 223, 0.15);
}

input[readonly] {
    background: #f5f6f8;
}

/* Buttons */
button, .btn, .edit-btn, .cancel-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 10px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

button, .btn-primary, .edit-btn {
    background: linear-gradient(120deg, var(--accent), #4f8cff);
    color: white;
    box-shadow: 0 10px 20px rgba(45, 108, 223, 0.2);
}

button:hover, .btn-primary:hover, .edit-btn:hover {
    transform: translateY(-1px);
}

.btn-secondary, .cancel-btn {
    background: #eceff5;
    color: var(--text);
}

.delete-btn {
    background: linear-gradient(120deg, #e55858, #d64545);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 10px;
    text-decoration: none;
}

.delete-btn:hover {
    transform: translateY(-1px);
}

/* Tables */
.table-container {
    padding: 16px;
    border-radius: 16px;
    overflow-x: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

thead {
    background: #101827;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 12px;
}

th, td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

tbody tr:hover {
    background: #f5f7fb;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
}