/* StratoNomad - Minimalist Design */

:root {
    --color-bg: #f5f5f3;
    --color-bg-alt: #eeeee9;
    --color-surface: #ffffff;
    --color-border: #e0e0dc;
    --color-border-light: #ebebeb;
    --color-text: #1a1a1a;
    --color-text-muted: #5c5c5c;
    --color-text-light: #888888;
    --color-accent: #c4842d;
    --color-accent-hover: #a86f24;
    --color-link: #4a4a4a;
    --color-link-hover: #1a1a1a;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    --max-width: 1100px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo {
    height: 28px;
    width: auto;
}

header h1 {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-text);
    margin: 0;
}

nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

nav a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background-color 0.2s ease;
}

nav a:hover {
    color: var(--color-text);
    background-color: var(--color-bg-alt);
}

/* Main Content */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* Typography */
h2 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    max-width: 60ch;
    line-height: 1.7;
}

/* Links */
a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-link-hover);
}

/* Lists */
ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

ul li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

ul li:first-child {
    border-top: 1px solid var(--color-border-light);
}

ul li a {
    font-weight: 500;
    color: var(--color-text);
}

ul li a:hover {
    color: var(--color-accent);
}

/* Forms */
form {
    max-width: 360px;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--color-text-light);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.04);
}

input::placeholder {
    color: var(--color-text-light);
}

/* Buttons */
button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

button:hover,
.btn:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-text-light);
}

/* Primary button - filled with accent */
.btn-primary,
button[type="submit"] {
    color: var(--color-surface);
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-primary:hover,
button[type="submit"]:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-surface);
}

/* Dark button variant */
.btn-dark {
    color: var(--color-surface);
    background-color: var(--color-text);
    border-color: var(--color-text);
}

.btn-dark:hover {
    background-color: #333;
    border-color: #333;
    color: var(--color-surface);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    font-size: 0.9rem;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
}

th, td {
    text-align: left;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border-light);
}

th {
    background-color: var(--color-bg);
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

/* Cards */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

/* Error messages */
.error,
p[style*="color:red"] {
    color: #9a3412 !important;
    background-color: #fef3e8;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid #fde0c8;
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

/* Utility: Secondary links */
a[href*="logout"],
a[href*="events"]:not(nav a) {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-md);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

a[href*="logout"]:hover,
a[href*="events"]:not(nav a):hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-text-light);
    color: var(--color-text);
    text-decoration: none;
}

/* Download link styling */
a[href*="csv"] {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-surface);
    background-color: var(--color-accent);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    transition: all 0.2s ease;
}

a[href*="csv"]:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    text-decoration: none;
    color: var(--color-surface);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    nav {
        width: 100%;
        justify-content: center;
    }

    main {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

@media (max-width: 640px) {
    nav {
        gap: var(--spacing-xs);
    }

    nav a {
        font-size: 0.85rem;
        padding: 0.5rem;
    }

    table {
        display: block;
        overflow-x: auto;
    }

    h2 {
        font-size: 1.5rem;
    }
}