/* montserrat-regular - latin */
@font-face {
    font-display: swap;
    font-family: 'Montserrat';
    font-style: normal;
    font-weight: 400;
    src: url('./fonts/montserrat-v31-latin-regular.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

/* open-sans-regular - latin */
@font-face {
    font-display: swap;
    font-family: 'Open Sans';
    font-style: normal;
    font-weight: 400;
    src: url('./fonts/open-sans-v44-latin-regular.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

:root {
    --primary-color: #AD2334; /* New primary color */
    --primary-hover: #931D2B; /* Darker shade of primary */
    --secondary-color: #2d3748; /* Dark slate gray */
    --bg-light: #f7fafc; /* Off-white */
    --bg-warm-gradient: linear-gradient(135deg, #f7fafc 0%, #e2e8f0 100%);
    --text-dark: #1a202c; /* Dark gray */
    --text-light: #FFFFFF; /* White */
    --text-muted: #718096; /* Lighter gray */

    /* Layout */
    --section-spacing: 5rem;
    --container-width: 1200px;
    --border-radius: 12px;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(199, 95, 56, 0.3);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

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

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

.section-padding {
    padding: var(--section-spacing) 0;
}

/* --- Navigation --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: var(--bg-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.nav-cta {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
}

/* --- Hero Section --- */
/* Structure adapted from Design Ref 2, colors from Ref 1 */
.hero {
    background: var(--bg-warm-gradient);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 3rem 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-image-wrapper {
    position: relative;
    height: 100%;
}

/* Using the specific image from reference 1 */
.hero-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: 20px 20px 0px rgba(199, 95, 56, 0.2); /* Terracotta shadow accent */
}

/* Newsletter in Hero */
.newsletter-hero {
    margin-top: 3rem;
    background: rgba(255, 255, 255, 0.7);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 5px solid var(--primary-color);
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.newsletter-input {
    flex: 1;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 50px;
    font-family: inherit;
}

/* --- Stats Section (Trust Building) --- */
.stats-section {
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding: 3rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Introduction & Storytelling --- */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.intro-signature {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-top: 2rem;
}

/* Placeholder image fitting the theme */
.intro-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}


/* --- Core Themes (Features) --- */
.themes-section {
    background-color: #fff;
}

.themes-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.theme-card {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    transition: transform 0.3s ease;
    text-align: center;
}

.theme-card:hover {
    transform: translateY(-10px);
    background: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.theme-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* --- Video Highlight Section --- */
.video-section {
    background-color: var(--secondary-color);
    color: var(--text-light);
    text-align: center;
}

.video-section h2 {
    color: var(--text-light);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 900px;
    margin: 3rem auto 0 auto;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* --- Keynote Topics Detailed --- */
.topic-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.topic-block:nth-child(even) {
    direction: rtl;
}

.topic-block:nth-child(even) .topic-content {
    direction: ltr;
}

.topic-image img {
    width: 100%;
    border-radius: var(--border-radius);
    height: 400px;
    object-fit: cover;
}

.topic-tag {
    display: inline-block;
    background: rgba(199, 95, 56, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

/* --- Footer --- */
.footer {
    background-color: var(--secondary-color);
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 2rem 0;
}

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

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

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .hero-container, .intro-grid, .topic-block {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero {
        text-align: center;
        padding-top: 6rem;
    }

    .hero-subtitle, .newsletter-hero {
        margin-left: auto;
        margin-right: auto;
    }

    .topic-block:nth-child(even) {
        direction: ltr;
    }

    .topic-image img {
        height: 300px;
    }

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

    .nav-links {
        display: none;
    }

    /* Simple hide for demo, would need mobile menu in reality */
}

@media (max-width: 600px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

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

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