:root {
    --primary-blue: #2563EB;
    --primary-blue-dark: #1e40af;
    --bg-light: #F9FAFB;
    --text-dark: #111827;
    --text-medium: #4B5563;
    --text-light: #6B7280;
    --border-color: #E5E7EB;
    --white: #ffffff;
    --spacing-base: 8px;
    --section-padding: 100px;
    --section-padding-mobile: 60px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Crimson Pro', serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    font-size: 1.125rem;
    color: var(--text-medium);
    max-width: 65ch;
}

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

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    height: 68px;
    display: flex;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: 'Crimson Pro', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-family: 'DM Sans', sans-serif;
}

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

.btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

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

.btn-white:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

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

.btn-outline-white:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: calc(var(--section-padding) * 1.2) 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.hero-content .subheadline {
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-video {
    background: var(--white);
    border-radius: 16px;
    aspect-ratio: 16/9;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.08),
        0 4px 16px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.hero-video::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(37, 99, 235, 0.02) 100%);
}

/* Problem Section */
.problem-section {
    padding: var(--section-padding) 0;
    text-align: center;
}

.problem-intro {
    font-size: 1.5rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 3rem;
    line-height: 1.5;
}

.problem-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
    list-style: none;
}

.problem-list li {
    font-size: 1.125rem;
    color: var(--text-medium);
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    position: relative;
}

.problem-list li::before {
    content: '×';
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 1.5rem;
    color: #dc2626;
    font-weight: 700;
}

.problem-closing {
    font-size: 1.375rem;
    color: var(--text-dark);
    font-weight: 600;
    margin-top: 3rem;
    line-height: 1.5;
}

/* Solution Section */
.solution-section {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.solution-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.solution-subtext {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: 4rem;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.solution-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.solution-card h3 {
    font-size: 1.25rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.solution-bottom {
    background: var(--white);
    padding: 3rem;
    border-radius: 16px;
    border: 2px solid var(--primary-blue);
}

.solution-bottom p {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin: 0 auto;
    text-align: center;
}

/* Benefits Section */
.benefits-section {
    padding: var(--section-padding) 0;
}

.benefits-header {
    text-align: center;
    margin-bottom: 4rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2.5rem;
}

.benefit-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--white) 100%);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-blue);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.benefit-card h3 {
    font-size: 1.375rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.benefit-card p {
    font-size: 1rem;
    color: var(--text-medium);
    margin: 0 auto;
}

/* How It Works */
.how-section {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.how-header {
    text-align: center;
    margin-bottom: 4rem;
}

.how-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    position: relative;
    padding-left: 4rem;
}

.step-number {
    position: absolute;
    left: 0;
    top: 0;
    font-family: 'Crimson Pro', serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    opacity: 0.3;
    line-height: 1;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.step p {
    font-size: 1rem;
    color: var(--text-medium);
}

/* Video Section */
.video-section {
    padding: var(--section-padding) 0;
}

.video-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.video-description {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: 3rem;
}

/* Footer */
.footer {
    background: linear-gradient(180deg, #0f172a 0%, #0b1220 100%);
    color: #e6eef8;
    padding: 3rem 0;
}
.footer .container {
    max-width: 1100px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    align-items: start;
}
.footer-brand h3, .footer-links h4 {
    color: #ffffff;
}
.footer p, .footer-links, .footer-links a {
    color: var(--text-light);
}
.footer-links ul { list-style: none; padding: 0; }
.footer-links a { color: var(--text-light); text-decoration: none; }
.footer-links a:hover { color: var(--white); }

.footer-contact-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-contact-form .form-row input,
.footer-contact-form .form-row textarea {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.08);
    background: rgba(255,255,255,0.03);
    color: #fff;
}
.footer-contact-form .form-row textarea { min-height: 90px; resize: vertical; }
.footer-contact-form .btn { padding: 10px 18px; border-radius: 8px; }
.contact-result { margin-top: 0.5rem; color: #bbdefb; }

@media (max-width: 700px) {
    .footer-grid { grid-template-columns: 1fr; }
}