@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

:root {
    --bg-primary: #0d0d0d;
    --bg-secondary: #161616;
    --bg-tertiary: #1f1f1f;
    --text-primary: #dadada;
    --text-secondary: #7a7a7a;
    --text-muted: #505050;
    --accent: #e07b39;
    --accent-dim: #b85d20;
    --accent-glow: rgba(224, 123, 57, 0.15);
    --danger: #c84c4c;
    --danger-hover: #e05a5a;
    --success: #5a9e6f;
    --success-bg: rgba(90, 158, 111, 0.12);
    --error-bg: rgba(200, 76, 76, 0.12);
    --info-bg: rgba(224, 123, 57, 0.08);
    --border: #2a2a2a;
    --border-active: #444444;
    --radius: 2px;
    --font-mono: 'Share Tech Mono', 'Courier New', monospace;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

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

html {
    font-size: 15px;
}

body {
    font-family: var(--font-body);
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
}

/* ── Navigation ──────────────────────────── */

nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0 2rem;
    height: 52px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

nav .brand {
    color: var(--accent);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

nav .brand::before {
    content: "⟐ ";
    opacity: 0.7;
}

nav .nav-user {
    margin-left: auto;
    color: var(--text-secondary);
    font-family: var(--font-body);
    letter-spacing: 0;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s;
}

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

/* ── Main Container ───────────────────────── */

main {
    max-width: 980px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

h1 {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 2rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    position: relative;
}

h1::after {
    content: "";
    display: block;
    width: 3rem;
    height: 2px;
    background: var(--accent);
    margin-top: 0.6rem;
}

h2 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ── Messages ─────────────────────────────── */

.error {
    background: var(--error-bg);
    color: #e08080;
    padding: 0.75rem 1rem;
    border-left: 3px solid var(--danger);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.flash {
    background: var(--success-bg);
    color: #80c090;
    padding: 0.75rem 1rem;
    border-left: 3px solid var(--success);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* ── Download Link Box ────────────────────── */

.download-link-box {
    background: var(--info-bg);
    border: 1px solid var(--accent-dim);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.download-link-box strong {
    display: block;
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
}

.download-link-box input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    outline: none;
}

.download-link-box input:focus {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent);
}

/* ── Forms ─────────────────────────────────── */

form {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.65rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent);
}

.form-group input[type="file"] {
    width: 100%;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input[type="file"]::file-selector-button {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 0.4rem 1rem;
    margin-right: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.form-group input[type="file"]::file-selector-button:hover {
    background: var(--border-active);
    border-color: var(--border-active);
}

/* ── Buttons ───────────────────────────────── */

button {
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 0.65rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s;
}

button:hover {
    background: #ea8f50;
    box-shadow: 0 0 20px var(--accent-glow);
}

button:active {
    background: var(--accent-dim);
}

button.danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    padding: 0.4rem 1rem;
    font-size: 0.7rem;
}

button.danger:hover {
    background: var(--danger);
    color: var(--bg-primary);
    box-shadow: 0 0 16px rgba(200, 76, 76, 0.2);
}

/* ── Upload Box ────────────────────────────── */

.upload-box {
    margin-bottom: 2.5rem;
}

.upload-box form {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    flex-wrap: wrap;
}

.upload-box .form-group {
    flex: 1;
    min-width: 240px;
    margin-bottom: 0;
}

.upload-box button {
    height: fit-content;
    white-space: nowrap;
}

/* ── Table ─────────────────────────────────── */

table {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-collapse: collapse;
    font-size: 0.9rem;
}

thead {
    border-bottom: 2px solid var(--border);
}

th {
    padding: 0.7rem 1rem;
    text-align: left;
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--bg-tertiary);
}

td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

tr:last-child td {
    border-bottom: none;
}

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

td.empty {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem 1rem;
    font-style: italic;
}

.actions {
    white-space: nowrap;
    display: flex;
    gap: 0.5rem;
}

.actions form button {
    font-size: 0.7rem;
    padding: 0.35rem 0.85rem;
    letter-spacing: 0.05em;
}

.actions form button:not(.danger) {
    background: var(--bg-tertiary);
    color: var(--accent);
    border: 1px solid var(--border);
}

.actions form button:not(.danger):hover {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.inline-form {
    display: inline-flex;
    padding: 0;
    border: none;
    background: none;
}

/* ── Login Page Specific ──────────────────── */

main > form {
    max-width: 420px;
}

main > form button {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.85rem;
}

/* ── Error Page ────────────────────────────── */

main > p > a {
    color: var(--accent);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

main > p > a:hover {
    text-decoration: underline;
}

/* ── Footer link ───────────────────────────── */

a[href="/"] {
    color: var(--accent);
}

/* ── Responsive ────────────────────────────── */

@media (max-width: 640px) {
    nav {
        padding: 0 1rem;
    }

    main {
        padding: 1.5rem 1rem;
    }

    .upload-box form {
        flex-direction: column;
        align-items: stretch;
    }

    .actions {
        flex-direction: column;
        gap: 0.35rem;
    }

    th, td {
        padding: 0.5rem 0.6rem;
    }

    th {
        font-size: 0.65rem;
    }

    td {
        font-size: 0.8rem;
    }

    h1 {
        font-size: 1.2rem;
    }
}