/* Atlas Narrative Labs - Main Stylesheet */

/* Color Variables */
:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-emerald: #10B981;
    --color-emerald-dark: #059669;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-black);
    text-decoration: none;
    transition: all 0.3s ease;
}

/* Navigation */
.navbar {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

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

.nav-links .cta-button {
    background: var(--color-emerald);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    border: none;
}

.nav-links .cta-button:hover {
    background: var(--color-emerald-dark);
    border-bottom-color: transparent;
}

/* Buttons */
.button-primary,
.button-secondary {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

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

.button-primary:hover {
    background: var(--color-emerald-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.2);
}

.button-secondary {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-black);
}

.button-secondary:hover {
    background: var(--color-black);
    color: var(--color-white);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    border-bottom: 1px solid var(--color-gray-200);
}

.hero-title {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-gray-700);
    margin-bottom: 3rem;
    max-width: 800px;
}

.hero-bullets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.hero-bullet h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-emerald);
}

.hero-bullet p {
    color: var(--color-gray-700);
    font-size: 1rem;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 3rem;
}

.section-intro {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-gray-700);
    max-width: 800px;
    margin: 0 auto 4rem;
}

/* Enterprise Section */
.enterprise-section {
    background: var(--color-white);
}

.featured-services {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-bottom: 5rem;
}

.service-card {
    padding: 3rem;
    border: 2px solid var(--color-gray-200);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--color-emerald);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--color-emerald);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--color-gray-700);
    margin-bottom: 1.5rem;
}

.link-arrow {
    color: var(--color-emerald);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.link-arrow:hover {
    color: var(--color-emerald-dark);
}

.link-arrow.large {
    font-size: 1.25rem;
    margin-top: 2rem;
}

/* Problems Section */
.problems-section {
    margin-bottom: 4rem;
}

.problems-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.problem-card {
    padding: 2rem;
    background: var(--color-gray-50);
    border-radius: 8px;
    border-left: 4px solid var(--color-emerald);
}

.problem-card h4 {
    color: var(--color-black);
    margin-bottom: 0.75rem;
}

.problem-card p {
    color: var(--color-gray-700);
    margin-bottom: 0;
}

/* Download CTA */
.download-cta {
    text-align: center;
    padding: 4rem;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 12px;
}

.download-cta h3 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.download-cta p {
    color: var(--color-gray-300);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

/* Why Atlas Section */
.why-atlas {
    background: var(--color-gray-50);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.why-card {
    padding: 2.5rem;
    background: var(--color-white);
    border-radius: 8px;
    border: 1px solid var(--color-gray-200);
}

.why-card h3 {
    color: var(--color-emerald);
    margin-bottom: 1rem;
}

.why-card p {
    color: var(--color-gray-700);
    margin-bottom: 0;
}

/* Institute Preview Section */
.institute-preview {
    background: var(--color-black);
    color: var(--color-white);
}

.institute-preview h2 {
    color: var(--color-white);
    text-align: center;
    margin-bottom: 1.5rem;
}

.institute-intro {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-gray-300);
    max-width: 800px;
    margin: 0 auto 4rem;
}

.institute-cta-box {
    max-width: 700px;
    margin: 0 auto 3rem;
    padding: 3rem;
    background: var(--color-gray-900);
    border-radius: 12px;
    border: 1px solid var(--color-gray-800);
}

.institute-cta-box h3 {
    color: var(--color-emerald);
    margin-bottom: 1rem;
}

.institute-cta-box p {
    color: var(--color-gray-300);
    margin-bottom: 2rem;
}

/* Forms */
.institute-form input,
.institute-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--color-gray-700);
    border-radius: 6px;
    background: var(--color-gray-800);
    color: var(--color-white);
    font-size: 1rem;
    font-family: inherit;
}

.institute-form input::placeholder,
.institute-form textarea::placeholder {
    color: var(--color-gray-500);
}

.institute-form input:focus,
.institute-form textarea:focus {
    outline: none;
    border-color: var(--color-emerald);
}

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

.checkbox-group label {
    display: block;
    color: var(--color-gray-300);
    margin-bottom: 0.75rem;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    margin-bottom: 0;
}

/* Footer */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--color-emerald);
    margin-bottom: 1.5rem;
}

.footer-col p,
.footer-col a {
    color: var(--color-gray-300);
    margin-bottom: 0.5rem;
}

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

.footer-col a:hover {
    color: var(--color-emerald);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding-top: 2rem;
    text-align: center;
    color: var(--color-gray-500);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-bullets,
    .featured-services,
    .problems-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 3rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    section {
        padding: 3rem 0;
    }
}