:root {
    --color-primary: #4d4f46;
    --color-primary-dark: #23251d;
    --color-primary-light: #71716f;
    --color-text: #4d4f46;
    --color-text-secondary: #65675e;
    --color-text-light: #ffffff;
    --color-bg: #fdfdf8;
    --color-bg-subtle: #eeefe9;
    --color-bg-tertiary: #e5e7e0;
    --color-border: #bfc1b7;
    --color-border-light: #d4d6cc;
    --color-accent-orange: #F54E00;
    --color-accent-gold: #F7A501;
    --color-dark-btn: #1e1f23;
    --color-tan: #d4c9b8;
    --color-success: #2e9e5d;
    --color-warning: #eca413;
    --color-danger: #d92626;
    --color-focus: #3b82f6;

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 80px;

    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-pill: 9999px;

    --shadow-deep: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-card: 0 25px 50px -12px rgba(0, 0, 0, 0.1);

    --font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family);
    color: var(--color-primary-dark);
    line-height: 1.2;
    margin: 0;
    font-weight: 700;
}

p { margin: 0; }

a {
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

.rli-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.rli-section {
    padding: var(--space-4xl) 0;
}

.rli-section--subtle {
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.rli-section--tertiary {
    background: var(--color-bg-tertiary);
}

.rli-section__label {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    display: block;
    letter-spacing: 0.5px;
}

.rli-btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 15px;
    font-family: inherit;
    text-align: center;
    line-height: 1.2;
}

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

.rli-btn--primary:hover {
    opacity: 0.8;
    color: var(--color-accent-gold);
}

.rli-btn--primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    color: white;
}

.rli-btn--tan {
    background-color: var(--color-tan);
    color: var(--color-primary-dark);
    border: 1px solid var(--color-border);
}

.rli-btn--tan:hover {
    color: var(--color-accent-orange);
}

.rli-btn--ghost {
    background-color: transparent;
    color: var(--color-primary-dark);
    border: 1px solid var(--color-border);
}

.rli-btn--ghost:hover {
    background-color: var(--color-bg-subtle);
    color: var(--color-accent-orange);
}

.rli-btn--lg {
    padding: 16px 32px;
    font-size: 18px;
    border-radius: var(--radius-lg);
}

.rli-nav {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
    padding: 12px 0;
}

.rli-nav__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.rli-logo {
    font-weight: 800;
    font-size: 20px;
    color: var(--color-primary-dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.rli-logo:hover { color: var(--color-accent-orange); }

.rli-footer {
    padding: var(--space-3xl) 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.rli-footer__logo {
    font-weight: 800;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-md);
    display: block;
    font-size: 18px;
}

.rli-footer__copyright {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.rli-footer__copyright + .rli-footer__copyright {
    margin-top: var(--space-sm);
}

.rli-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.rli-input,
.rli-textarea,
.rli-select {
    width: 100%;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    color: #374151;
    font-family: inherit;
    font-size: 16px;
    line-height: 1.5;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.rli-input::placeholder,
.rli-textarea::placeholder {
    color: #9ea096;
}

.rli-input:focus,
.rli-textarea:focus,
.rli-select:focus {
    outline: none;
    border-color: var(--color-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.rli-textarea {
    resize: vertical;
    min-height: 96px;
}

.rli-label {
    display: block;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 6px;
    font-size: 15px;
}

.rli-hint {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-top: 4px;
    line-height: 1.5;
}

.rli-error {
    color: var(--color-danger);
    font-size: 14px;
    margin-top: var(--space-sm);
}

.rli-alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
    margin-bottom: var(--space-lg);
}

.rli-alert--error {
    background: #fbecec;
    border-color: #f0c9c9;
    color: var(--color-danger);
}

.rli-alert--success {
    background: #e8f5ec;
    border-color: #b9d9c2;
    color: var(--color-success);
}

@media (max-width: 768px) {
    .rli-section { padding: var(--space-2xl) 0; }
    .rli-container { padding: 0 var(--space-md); }
}