/* ==========================================
   FINALCHOICE.REVIEW - BASE STYLES
   ========================================== */

/* CSS Variables */
:root {
    --color-primary: #22c55e;
    --color-primary-dark: #16a34a;
    --color-secondary: #3b82f6;
    --color-danger: #ef4444;
    --color-warning: #f97316;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-card: #ffffff;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-secondary: 'Merriweather', Georgia, serif;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-wide {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   HEADER
   ========================================== */
.header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-center {
    justify-content: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 18px;
}

.header-nav {
    display: flex;
    gap: 24px;
}

.header-nav a {
    font-size: 14px;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

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

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--color-bg-light);
    padding: 40px 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.footer-nav a {
    font-size: 13px;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

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

.back-to-top {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-to-top:hover {
    background: var(--color-border-light);
}

.copyright {
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-disclaimer {
    font-size: 11px;
    line-height: 1.7;
    color: var(--color-text-muted);
    max-width: 800px;
    margin-top: 20px;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(34, 197, 94, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
}

.btn-secondary {
    background: var(--color-bg-light);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border-light);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .header-nav {
        display: none;
    }
    
    .footer-nav {
        gap: 12px;
    }
}