@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Inter:wght@400;500;600&display=swap');

:root {
    --c64-blue: #4040e0;
    --c64-dark-blue: #2020a0;
    --c64-light-blue: #7070ff;
    --c64-purple: #6020b0;
    --c64-bg: #1a1a2e;
    --c64-surface: #16213e;
    --c64-surface-light: #1e2d4a;
    --c64-white: #f0f0f0;
    --c64-grey: #a0a0b0;
    --c64-green: #50d050;
    --c64-red: #e04040;
    --c64-cyan: #70d0d0;
    --font-pixel: 'Press Start 2P', monospace;
    --font-body: 'Inter', -apple-system, sans-serif;
    --radius: 8px;
    --max-width: 860px;
}

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

body {
    background-color: var(--c64-bg);
    color: var(--c64-white);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.nav {
    background-color: var(--c64-surface);
    border-bottom: 3px solid var(--c64-blue);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.nav-brand {
    color: var(--c64-light-blue);
    text-decoration: none;
    font-family: var(--font-pixel);
    font-size: 12px;
    letter-spacing: 1px;
}

.nav-brand:hover {
    color: var(--c64-white);
}

.nav-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.nav-links a {
    color: var(--c64-grey);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--c64-white);
}

/* Main content */
.content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 48px 24px;
    flex: 1;
    width: 100%;
}

/* Typography */
h1 {
    font-family: var(--font-pixel);
    color: var(--c64-light-blue);
    font-size: 20px;
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h2 {
    font-family: var(--font-pixel);
    color: var(--c64-cyan);
    font-size: 11px;
    margin-bottom: 16px;
    margin-top: 40px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

h3 {
    font-family: var(--font-pixel);
    color: var(--c64-light-blue);
    font-size: 10px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

p {
    margin-bottom: 16px;
    color: var(--c64-grey);
}

a {
    color: var(--c64-light-blue);
    transition: color 0.2s;
}

a:hover {
    color: var(--c64-cyan);
    text-decoration: underline;
}

ul, ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

ul li, ol li {
    margin-bottom: 10px;
    color: var(--c64-grey);
}

/* Flash messages */
.flash {
    padding: 14px 20px;
    margin-bottom: 24px;
    border-radius: var(--radius);
    font-size: 14px;
    border-left: 4px solid;
}

.flash-error {
    border-color: var(--c64-red);
    color: var(--c64-red);
    background: rgba(224, 64, 64, 0.1);
}

.flash-success {
    border-color: var(--c64-green);
    color: var(--c64-green);
    background: rgba(80, 208, 80, 0.1);
}

.flash-info {
    border-color: var(--c64-blue);
    color: var(--c64-light-blue);
    background: rgba(64, 64, 224, 0.1);
}

/* Forms */
.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    color: var(--c64-grey);
    font-size: 12px;
    margin-bottom: 8px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

input[type="text"],
input[type="password"],
input[type="email"] {
    width: 100%;
    max-width: 400px;
    padding: 12px 16px;
    background-color: var(--c64-surface);
    border: 2px solid var(--c64-surface-light);
    border-radius: var(--radius);
    color: var(--c64-white);
    font-family: var(--font-body);
    font-size: 15px;
    text-transform: uppercase;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
    outline: none;
    border-color: var(--c64-blue);
}

input[type="email"],
input.mixed-case {
    text-transform: none;
}

.hint {
    font-size: 12px;
    color: var(--c64-grey);
    margin-top: 6px;
    opacity: 0.7;
}

/* Buttons */
button, .btn {
    display: inline-block;
    padding: 12px 28px;
    background-color: var(--c64-blue);
    color: var(--c64-white);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover, .btn:hover {
    background-color: var(--c64-light-blue);
    transform: translateY(-1px);
}

/* Code blocks */
code, pre {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
    background-color: var(--c64-surface);
    border: 1px solid var(--c64-surface-light);
    border-radius: 4px;
    padding: 2px 8px;
    color: var(--c64-cyan);
}

pre {
    padding: 16px 20px;
    overflow-x: auto;
    margin-bottom: 16px;
}

/* Footer */
.footer {
    background-color: var(--c64-surface);
    border-top: 3px solid var(--c64-blue);
    padding: 24px;
    text-align: center;
    font-family: var(--font-pixel);
    font-size: 8px;
    color: var(--c64-grey);
    letter-spacing: 1px;
}

/* Walkthrough GIF */
.walkthrough {
    text-align: center;
    margin: 32px 0;
}

.walkthrough img {
    max-width: 100%;
    border-radius: var(--radius);
    border: 2px solid var(--c64-surface-light);
}

/* Hero section */
.hero {
    text-align: center;
    padding: 32px;
    border: 2px solid var(--c64-surface-light);
    border-radius: var(--radius);
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--c64-surface) 0%, var(--c64-surface-light) 100%);
}

.hero h1 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--c64-light-blue);
}

.hero p {
    font-size: 14px;
    color: var(--c64-grey);
}

/* Info boxes */
.info-box {
    border: 2px solid var(--c64-surface-light);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    background-color: var(--c64-surface);
}

.info-box h3 {
    margin-bottom: 12px;
}

.info-box p {
    margin-bottom: 0;
}

/* Download table */
.download-table {
    width: 100%;
    margin-bottom: 24px;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.download-table td {
    padding: 14px 20px;
    background-color: var(--c64-surface);
    border: 1px solid var(--c64-surface-light);
    color: var(--c64-grey);
}

.download-table td:first-child {
    border-radius: var(--radius) 0 0 var(--radius);
    font-weight: 600;
}

.download-table td:last-child {
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 13px;
}

/* Admin table */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    font-size: 13px;
}

.admin-table th,
.admin-table td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--c64-surface-light);
}

.admin-table th {
    background-color: var(--c64-surface);
    color: var(--c64-grey);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table tr:hover td {
    background-color: var(--c64-surface-light);
}

.link-danger {
    color: var(--c64-red);
}

.link-danger:hover {
    color: var(--c64-red);
}

/* Errors list */
.errors {
    list-style: none;
    margin-bottom: 20px;
    padding-left: 0;
}

.errors li {
    color: var(--c64-red);
    font-size: 13px;
    margin-bottom: 8px;
}

.errors li::before {
    content: "× ";
}

/* Responsive */
@media (max-width: 600px) {
    .nav-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        gap: 12px;
    }

    h1 {
        font-size: 16px;
    }

    .content {
        padding: 32px 16px;
    }
}