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

/* === Base === */
:root {
    --color-bg: #0f1117;
    --color-surface: #1a1d27;
    --color-border: #2a2d3a;
    --color-text: #e1e4ed;
    --color-text-muted: #8b8fa3;
    --color-primary: #6c7bff;
    --color-primary-hover: #8b96ff;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius: 8px;
    --transition: 150ms ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* === Layout === */
.container {
    width: 100%;
    max-width: 48rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

main {
    flex: 1;
    padding: 3rem 0;
}

/* === Typography === */
h1,
h2,
h3 {
    line-height: 1.2;
    font-weight: 600;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

h2 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

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

ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.35rem;
}

code {
    background: var(--color-surface);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
}

/* === Nav === */
nav {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 0;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    padding: 0;
    margin: 0;
}

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

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

/* === Card === */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 2rem;
}

/* === Hero === */
.hero {
    padding-top: 1rem;
}

/* === Button === */
button,
.btn {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

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

button:active,
.btn:active {
    transform: translateY(0);
}

/* === HTMX result area === */
.result {
    margin-top: 1rem;
    min-height: 1.5rem;
}

/* === HTMX indicator === */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline;
}

/* === Footer === */
footer {
    padding: 2rem 0;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-border);
}

/* === Responsive === */
@media (max-width: 640px) {
    h1 {
        font-size: 1.6rem;
    }

    .container {
        padding: 0 1rem;
    }

    .nav-inner {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-user {
        border-left: none;
        padding-left: 0;
    }
}

/* === Auth Pages (Premium Dark Aesthetics) === */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: rgba(26, 29, 39, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 3rem 2.5rem;
    text-align: center;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(108, 123, 255, 0.15);
    color: var(--color-primary);
    margin-bottom: 2rem;
    box-shadow: 0 0 30px rgba(108, 123, 255, 0.2);
}

.auth-card h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: #fff;
    letter-spacing: -0.02em;
}

.auth-card p.subtitle {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 2.5rem;
}

.auth-providers {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.btn-provider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    padding: 0.9rem 1rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition);
}

.btn-provider:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.auth-footer {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    opacity: 0.7;
}

/* === Nav User Styles === */
.nav-links {
    align-items: center;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    border-left: 1px solid var(--color-border);
    padding-left: 1.25rem;
}

.nav-user-email {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

form.inline {
    display: inline;
    margin: 0;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-danger {
    background: rgba(220, 38, 38, 0.1);
    color: #ef4444;
}

.btn-danger:hover {
    background: rgba(220, 38, 38, 0.2);
}