/* === Custom properties === */

:root {
    --color-bg: #ffffff;
    --color-bg-secondary: #f5f5f3;
    --color-text: #1a1a1a;
    --color-text-muted: #6b6b6b;
    --color-border: #e0e0dc;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-accent-text: #ffffff;
    --color-danger: #dc2626;
    --color-success: #16a34a;
    --color-warning: #d97706;

    --font-base: "DM Sans", system-ui, -apple-system, sans-serif;
    --font-heading: "DM Sans", system-ui, -apple-system, sans-serif;
    --font-mono: "DM Mono", ui-monospace, monospace;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;

    --radius: 6px;
    --max-width: 40rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1a1a2e;
        --color-bg-secondary: #222238;
        --color-text: #e8e8ed;
        --color-text-muted: #9898a8;
        --color-border: #333350;
        --color-accent: #60a5fa;
        --color-accent-hover: #93c5fd;
        --color-accent-text: #1a1a2e;
    }
}

/* === Reset === */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: var(--font-base);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    min-height: 100dvh;
}

/* === Typography === */

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.25;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }
h4 { font-size: 1rem; }

p { margin-bottom: var(--space-md); }
p:last-child { margin-bottom: 0; }

small, .muted { color: var(--color-text-muted); }
small { font-size: 0.85rem; }

a {
    color: var(--color-accent);
    text-decoration: none;
}
a:hover { text-decoration: underline; }

/* === Forms === */

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="url"],
input[type="tel"],
input[type="search"],
textarea,
select {
    display: block;
    width: 100%;
    padding: 0.5rem 0.65rem;
    font-family: var(--font-base);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color 0.15s;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

input:disabled, textarea:disabled, select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

textarea {
    resize: vertical;
    min-height: 5rem;
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-md);
}

legend {
    font-weight: 500;
    padding: 0 var(--space-xs);
}

/* === Buttons === */

button, .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.5rem 1rem;
    font-family: var(--font-base);
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    line-height: 1.4;
}

button:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-text-muted);
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.primary {
    background: var(--color-accent);
    color: var(--color-accent-text);
    border-color: var(--color-accent);
}

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

/* === Tables === */

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

th, td {
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-muted);
    position: sticky;
    top: 0;
    background: var(--color-bg);
}

tbody tr:hover {
    background: var(--color-bg-secondary);
}

.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* === Navigation === */

nav {
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    padding: 0 var(--space-md);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 3rem;
}

.nav-brand {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-text);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.9rem;
}

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
}

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

.nav-user {
    font-size: 0.85rem;
}

/* === Badges === */

.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 99px;
    background: var(--color-accent);
    color: var(--color-accent-text);
    line-height: 1.5;
}

.badge-success { background: #dcfce7; color: #15803d; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-neutral { background: var(--color-bg-secondary); color: var(--color-text-muted); }

@media (prefers-color-scheme: dark) {
    .badge-success { background: #14532d; color: #86efac; }
    .badge-warning { background: #78350f; color: #fde68a; }
    .badge-danger  { background: #7f1d1d; color: #fca5a5; }
}

/* === Utility classes === */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--gap, var(--space-md));
}

.row {
    display: flex;
    gap: var(--gap, var(--space-md));
    flex-wrap: wrap;
}

.card {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
}

/* === Misc === */

.error-text {
    color: var(--color-danger);
    font-size: 0.9rem;
}

.success-text {
    color: var(--color-success);
    font-size: 0.9rem;
}

/* === Login === */

.login-wrap {
    max-width: 22rem;
    margin: 15vh auto 0;
    padding: 0 var(--space-md);
    text-align: center;
}

.login-wrap h1 {
    margin-bottom: var(--space-xs);
}

.login-wrap p {
    margin-bottom: var(--space-lg);
}

.login-wrap form {
    text-align: left;
}