/* Amorphic Pay - Stylesheet */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --success: #10b981;
    --error: #ef4444;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

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

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

.nav-links a.btn-primary {
    color: white;
}

.nav-links a.btn-primary:hover {
    color: white;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-google {
    background: white;
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-google:hover {
    background: var(--bg-alt);
}

.btn-full {
    width: 100%;
    text-align: center;
}

/* Hero */
.hero {
    text-align: center;
    padding: 4rem 1rem;
    background: var(--bg-alt);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    color: var(--text-light);
    font-size: 1.25rem;
}

/* Pricing Section */
.pricing-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1rem;
    text-align: center;
}

.pricing-section h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-light);
    margin-bottom: 3rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 550px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

.pricing-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: left;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card .features {
    flex: 1;
}

.pricing-card .btn {
    margin-top: auto;
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
}

.pricing-card .badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

.pricing-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.pricing-card .description {
    min-height: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.pricing-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-light);
}

.pricing-card .features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-card .features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.pricing-card .features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
}

/* Auth Pages */
.auth-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
}

.auth-card h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group small {
    color: var(--text-light);
    font-size: 0.75rem;
}

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    min-height: 1.25rem;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    color: var(--text-light);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.auth-links {
    margin-top: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.auth-links a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.875rem;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
    color: var(--text-light);
}

/* Utilities */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }

/* Auth nav states */
#nav-guest,
#nav-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-ghost {
    background: none;
    color: var(--text-light);
    padding: 0.5rem 0.75rem;
}

.btn-ghost:hover {
    color: var(--text);
}

/* Brand: amorphic - always lowercase, bold Inter */
.brand-name {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 700;
    text-transform: lowercase;
}