/* 
   DryDocking Premium Design System 
   Theme: Deep Naval / Professional / Minimalist
*/

:root {
    --bg-color: #0d1117;
    --sidebar-bg: #161b22;
    --card-bg: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --border: #30363d;
    --success: #238636;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    position: fixed;
    height: 100vh;
}

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--card-bg);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-link.active {
    border-left: 3px solid var(--accent);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    flex: 1;
    padding: 2rem 3rem;
}

.header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 600;
}

/* Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.25rem;
    transition: background-color 0.2s, border-color 0.2s;
    text-decoration: none;
    display: block;
    color: inherit;
}

.card:hover {
    background-color: #262c36;
    border-color: var(--accent);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Tables */
.table-container {
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: var(--sidebar-bg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

td {
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
}

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

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-blue {
    background: rgba(56, 139, 253, 0.15);
    color: #58a6ff;
}

.badge-gray {
    background: rgba(110, 118, 129, 0.15);
    color: #8b949e;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
}