/* ==========================================================================
   ZIPFINDERUS.COM - MODERN DESIGN SYSTEM & STYLES
   ========================================================================== */

:root {
    --primary-color: #0d9488;
    --primary-hover: #0f766e;
    --primary-light: rgba(13, 148, 136, 0.12);
    --secondary-color: #3b82f6;
    --accent-color: #f59e0b;
    --bg-main: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.85);
    --border-color: rgba(0, 0, 0, 0.08);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

/* Navigation Header */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo-icon {
    color: var(--primary-color);
    font-size: 1.6rem;
}

.logo-accent {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

/* Top Announcement Bar */
.announcement-bar {
    background: linear-gradient(90deg, #0f766e, #0d9488);
    color: #ffffff;
    text-align: center;
    padding: 8px 15px;
    font-size: 0.88rem;
    font-weight: 500;
}

/* Ad Placeholders */
.ad-placeholder {
    margin: 20px 0;
    text-align: center;
}

.ad-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.ad-box {
    background: rgba(0, 0, 0, 0.05);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Hero Section */
.hero-section {
    padding: 40px 0;
}

.hero-card {
    padding: 40px 30px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.pulse {
    animation: pulseAnim 2s infinite;
}

@keyframes pulseAnim {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 650px;
    margin: 0 auto 30px auto;
}

/* ZIP Result Display Card */
.zip-result-container {
    max-width: 850px;
    margin: 0 auto;
}

.detecting-spinner {
    padding: 40px;
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s infinite linear;
    margin: 0 auto 16px auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.result-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 20px;
    text-align: left;
}

.zip-number-badge {
    background: linear-gradient(135deg, var(--primary-color), #0f766e);
    color: #fff;
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    position: relative;
    margin-bottom: 20px;
}

.zip-label {
    font-size: 0.75rem;
    letter-spacing: 1px;
    opacity: 0.9;
    display: block;
    margin-bottom: 4px;
}

.zip-code-display {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: 2px;
    line-height: 1;
}

.copy-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: background 0.2s ease;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.35);
}

.location-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    padding: 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.detail-item i {
    font-size: 1.4rem;
    color: var(--primary-color);
}

.detail-title {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.detail-item strong {
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* 8+ Data Points Grid (Demographics) */
.demographic-data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.demo-card {
    background: var(--primary-light);
    border: 1px solid rgba(13, 148, 136, 0.2);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
}

.demo-card i {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 4px;
    display: block;
}

.demo-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.demo-card strong {
    font-size: 0.88rem;
    color: var(--text-primary);
}

/* Contiguous ZIPs Tag Box */
.adjacent-zips-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.adjacent-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 8px;
}

.adjacent-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.adjacent-tag {
    background: var(--primary-light);
    color: var(--primary-color);
    border: 1px solid rgba(13, 148, 136, 0.3);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.adjacent-tag:hover {
    background: var(--primary-color);
    color: #fff;
}

/* Leaflet Map Wrapper */
.map-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
}

.map-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.map-badge {
    background: var(--primary-color);
    color: #fff;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

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

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

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

/* Simulator Dropdown */
.location-simulator {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-color);
    text-align: left;
    font-size: 0.9rem;
}

.sim-select {
    width: 100%;
    margin-top: 8px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    font-family: inherit;
    font-size: 0.95rem;
    cursor: pointer;
}

/* Search Section */
.search-section {
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 30px;
}

.section-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.section-header p {
    color: var(--text-secondary);
}

.search-box-wrapper {
    padding: 24px;
}

.search-input-group {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 16px;
}

.search-icon {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.search-input-group input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-family: inherit;
    padding: 8px 0;
}

.search-results-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.search-result-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-result-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.result-zip-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 6px;
}

/* Distance Calculator */
.calculator-section {
    padding: 40px 0;
}

.calc-card {
    padding: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.calc-inputs-grid {
    display: flex;
    align-items: center;
    gap: 16px;
    justify-content: center;
}

.calc-field {
    flex: 1;
}

.calc-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.calc-field input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
}

.calc-swap-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-top: 20px;
}

.calc-result-box {
    margin-top: 24px;
    background: var(--primary-light);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
}

.dist-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.dist-sub {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* States Grid */
.states-section {
    padding: 60px 0;
}

.states-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.state-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 14px;
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.state-card:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
}

.state-code {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary-color);
}

.state-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.state-zips-count {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* FAQs Section */
.faq-section {
    padding: 60px 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.faq-card {
    padding: 24px;
}

.faq-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.faq-card h3 i {
    color: var(--primary-color);
}

.faq-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 50px 0 20px 0;
    margin-top: 60px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.disclaimer-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title { font-size: 1.8rem; }
    .zip-code-display { font-size: 2.5rem; }
    .nav-links { display: none; }
    .footer-container { grid-template-columns: 1fr; }
    .calc-inputs-grid { flex-direction: column; }
}