/* ============================================================
   NicheSignal — Global Styles
   ============================================================ */

:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #A29BFE;
    --accent: #00B894;
    --accent-dark: #00A383;
    --dark: #1A1A2E;
    --dark-lighter: #16213E;
    --gray-900: #212529;
    --gray-700: #495057;
    --gray-500: #6C757D;
    --gray-300: #DEE2E6;
    --gray-100: #F8F9FA;
    --white: #FFFFFF;
    --danger: #E17055;
    --warning: #FDCB6E;
    --success: #00B894;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================================
   Navbar
   ============================================================ */

.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.95rem;
}

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

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

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

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

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

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

.btn-large {
    padding: 14px 36px;
    font-size: 1.1rem;
}

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

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

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

/* ============================================================
   Hero
   ============================================================ */

.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
}

.hero-container {
    max-width: 750px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: 20px;
}

.highlight {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray-700);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.hero-note {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ============================================================
   Social Proof
   ============================================================ */

.social-proof {
    padding: 32px 0;
    text-align: center;
    border-bottom: 1px solid var(--gray-300);
}

.proof-text {
    font-size: 1rem;
    color: var(--gray-500);
}

/* ============================================================
   Features
   ============================================================ */

.features {
    padding: 80px 0;
}

.features h2, .how-it-works h2, .pricing h2, .final-cta h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-700);
    font-size: 1.1rem;
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-700);
    font-size: 0.95rem;
    line-height: 1.6;
    text-align: left;
}

/* ============================================================
   How It Works
   ============================================================ */

.how-it-works {
    padding: 80px 0;
    background: var(--gray-100);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.step {
    text-align: center;
    padding: 24px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.step h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.step p {
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* ============================================================
   Pricing
   ============================================================ */

.pricing {
    padding: 80px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 700px;
    margin: 0 auto;
}

.pricing-card {
    padding: 40px 32px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    position: relative;
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-500);
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-card li {
    padding: 8px 0;
    color: var(--gray-700);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--gray-100);
}

.pricing-card li:last-child {
    border-bottom: none;
}

/* ============================================================
   Final CTA
   ============================================================ */

.final-cta {
    padding: 80px 0;
    background: var(--dark);
    color: var(--white);
    text-align: center;
}

.final-cta h2 {
    color: var(--white);
}

.final-cta p {
    color: var(--gray-300);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
    padding: 24px 0;
    text-align: center;
    color: var(--gray-500);
    font-size: 0.85rem;
    border-top: 1px solid var(--gray-300);
}

/* ============================================================
   Auth Pages
   ============================================================ */

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
}

.auth-card {
    background: var(--white);
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
}

.auth-card h2 {
    margin-bottom: 8px;
    text-align: center;
}

.auth-card .subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.form-group input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.error-message {
    background: #FFF5F5;
    color: var(--danger);
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-bottom: 16px;
    display: none;
}

/* ============================================================
   Dashboard
   ============================================================ */

.dashboard {
    min-height: 100vh;
    background: var(--gray-100);
}

.dash-nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    padding: 12px 0;
}

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

.dash-nav .user-info {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.tier-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.tier-badge.free {
    background: var(--gray-300);
    color: var(--gray-700);
}

.tier-badge.paid {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.dash-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 32px 24px;
}

.scan-controls {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.scan-controls h2 {
    text-align: left;
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.scan-form {
    display: flex;
    gap: 12px;
    align-items: end;
}

.scan-form .form-group {
    margin-bottom: 0;
    flex: 1;
}

.scan-form select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--white);
}

.scan-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    display: none;
}

.scan-status.loading {
    display: block;
    background: #EBF5FB;
    color: #2980B9;
}

.scan-status.error {
    display: block;
    background: #FFF5F5;
    color: var(--danger);
}

/* Results */

.results-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.results-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-300);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-header h2 {
    text-align: left;
    font-size: 1.3rem;
    margin-bottom: 0;
}

.niche-card {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 16px;
    align-items: start;
}

.niche-card:last-child {
    border-bottom: none;
}

.niche-rank {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--gray-700);
}

.niche-rank.top-3 {
    background: var(--primary);
    color: var(--white);
}

.niche-info h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.niche-verdict {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.verdict-strong { background: #D5F5E3; color: #1E8449; }
.verdict-good { background: #D6EAF8; color: #2471A3; }
.verdict-testing { background: #FEF9E7; color: #B7950B; }
.verdict-avoid { background: #FADBD8; color: #C0392B; }

.niche-score {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.niche-score span {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--gray-500);
}

.niche-signals {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 8px;
}

.signal {
    font-size: 0.85rem;
    color: var(--gray-700);
}

.signal-label {
    font-weight: 600;
    color: var(--gray-500);
    font-size: 0.75rem;
    text-transform: uppercase;
    margin-bottom: 2px;
}

.hot-posts {
    margin-top: 12px;
    padding: 12px;
    background: var(--gray-100);
    border-radius: var(--radius);
}

.hot-posts h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.hot-posts li {
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-bottom: 4px;
    list-style: none;
    padding-left: 12px;
    position: relative;
}

.hot-posts li::before {
    content: ">";
    position: absolute;
    left: 0;
    color: var(--primary);
}

.upgrade-banner {
    margin-top: 12px;
    padding: 16px;
    background: linear-gradient(135deg, #F8F0FF, #EBF0FF);
    border-radius: var(--radius);
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.upgrade-banner a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 768px) {
    html, body {
        overflow-x: hidden;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .feature-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .nav-container {
        padding: 0 12px;
        flex-wrap: wrap;
        gap: 8px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-links {
        gap: 6px;
    }

    .nav-links a {
        font-size: 0.8rem;
        padding: 6px 10px;
    }

    .nav-links .btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .container {
        padding: 0 16px;
    }

    .scan-form {
        flex-direction: column;
    }

    .niche-signals {
        grid-template-columns: 1fr;
    }

    .niche-card {
        grid-template-columns: 1fr;
        padding: 16px;
    }

    .results-header {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    .dash-content {
        padding: 16px;
    }

    .scan-controls {
        padding: 16px;
    }

    .dash-nav .user-info {
        gap: 8px;
        font-size: 0.8rem;
    }

    .features h2, .how-it-works h2, .pricing h2, .final-cta h2 {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
        padding: 0 8px;
    }
}