/* Complete Explainer Guide Landing Page - Premium Design */

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

:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --dark: #111827;
    --gray-900: #1F2937;
    --gray-800: #374151;
    --gray-700: #4B5563;
    --gray-600: #6B7280;
    --gray-500: #9CA3AF;
    --gray-400: #D1D5DB;
    --gray-300: #E5E7EB;
    --gray-200: #F3F4F6;
    --gray-100: #F9FAFB;
    --white: #FFFFFF;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
}

h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-family: 'Playfair Display', serif; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 2rem; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1.5rem; }
h4 { font-size: 1.25rem; margin-bottom: 1rem; }

p { margin-bottom: 1.5rem; }
a { color: var(--primary); text-decoration: none; transition: 0.25s; }
a:hover { color: var(--primary-dark); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.25s;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    color: white;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.15);
}

.btn-secondary {
    background: white;
    color: var(--gray-800);
    border: 2px solid var(--gray-300);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Navigation */
.navigation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo { height: 40px; }

.nav-links {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    color: var(--gray-700);
    font-weight: 500;
}

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

/* Hero */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 6rem 0;
    margin-top: 76px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #F3F4F6 0%, #E0E7FF 50%, #F3F4F6 100%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(99,102,241,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139,92,246,0.1) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: white;
    border-radius: 100px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.hero-title {
    margin-bottom: 2rem;
}

.hero-title .accent {
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.stat { text-align: center; }
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Trust Bar */
.trust-bar {
    padding: 3rem 0;
    background: var(--gray-100);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.trust-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
}

.trust-text {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.trust-logos {
    display: flex;
    gap: 3rem;
}

.trust-logos img {
    height: 40px;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: 0.25s;
}

.trust-logos img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

/* TOC Section */
.toc-section { padding: 6rem 0; }
.section-title { text-align: center; margin-bottom: 4rem; }

.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.toc-item {
    display: block;
    padding: 2rem;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    transition: all 0.25s;
}

.toc-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.toc-number {
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.toc-item:hover .toc-number { color: var(--primary); }

.toc-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.toc-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* Content Sections */
.content-section { padding: 6rem 0; }
.content-section.alt-bg { background: var(--gray-50); }

.section-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.section-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.lead {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: 3rem;
    max-width: 800px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 4rem;
}

.content-main { max-width: 800px; }

/* Video Types Grid */
.video-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.video-type-card {
    padding: 3rem;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: 16px;
    transition: all 0.25s;
}

.video-type-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px rgba(0,0,0,0.1);
}

.video-type-card.featured {
    border-color: var(--primary);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.type-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    background: var(--gray-100);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.type-stats {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.stat-item {
    padding: 4px 12px;
    background: var(--gray-100);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.type-details {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.type-link {
    font-weight: 600;
    color: var(--primary);
}

/* Calculator Section */
.calculator-section {
    padding: 6rem 0;
    background: linear-gradient(180deg, #111827 0%, #1F2937 100%);
    color: white;
}

.calculator-section h2 {
    color: white;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 4rem;
}

.calculator-container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.calculator-inputs {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 3rem;
}

.input-group { margin-bottom: 2rem; }
.input-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.input-group select {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
}

.result-card {
    background: white;
    color: var(--dark);
    border-radius: 16px;
    padding: 4rem;
    text-align: center;
}

.price-range {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin: 2rem 0;
}

.price-min, .price-max {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Lead Capture */
.lead-capture-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #EEF2FF 100%);
}

.lead-capture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.lead-form {
    background: white;
    padding: 4rem;
    border-radius: 16px;
    box-shadow: 0 20px 25px rgba(0,0,0,0.1);
}

.form-group { margin-bottom: 1.5rem; }

.form-group input,
.form-group select {
    width: 100%;
    padding: 1.5rem;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

/* Footer */
.footer {
    padding: 6rem 0 3rem;
    background: var(--gray-900);
    color: var(--gray-400);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr 1fr;
    gap: 6rem;
    margin-bottom: 4rem;
}

.footer-logo {
    height: 40px;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-column h4 {
    color: white;
    margin-bottom: 1.5rem;
}

.footer-column ul {
    list-style: none;
    padding: 0;
}

.footer-column li { margin-bottom: 1rem; }
.footer-column a {
    color: var(--gray-400);
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-stats { grid-template-columns: 1fr; }
    .content-grid { grid-template-columns: 1fr; }
    .calculator-container { grid-template-columns: 1fr; }
    .lead-capture-content { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; }
}

.icon { width: 20px; height: 20px; }