/* CSS Variables - Update these with ATLAS color palette */
:root {
    /* Colors - Placeholder values (update with ATLAS colors) */
    --color-primary: #021cca;
    --color-secondary: #1e40af;
    --color-accent: #3b82f6;
    --color-dark: #1e293b;
    --color-medium: #475569;
    --color-light: #f1f5f9;
    --color-white: #ffffff;
    --color-success: #10b981;
    --color-error: #ef4444;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 4px;
}

/* Base Styles */
body {
    font-family: var(--font-primary);
    font-size: 16px;
    color: var(--color-dark);
    background: var(--color-white);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

/* Typography */
h1 {
    font-size: 2rem;
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

h2 {
    font-size: 1.75rem;
    line-height: 1.3;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

h3 {
    font-size: 1.25rem;
    line-height: 1.4;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

p {
    margin-bottom: var(--space-sm);
}

.emphasis {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-primary);
}

/* Section Styles */
.section {
    padding: var(--space-lg) 0;
}

.section-alt {
    background: var(--color-light);
}

/* Top Header */
.top-header {
    background: var(--color-white);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-light);
}

.top-header .container {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
}

.top-header .logo {
    height: 100px;
    width: auto;
}

.top-header .tagline-header {
    color: var(--color-dark);
    font-size: 0.9rem;
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    text-align: right;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    bottom: 6px;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.55)), url('../assets/images/haeder_coastal_landslide_on_road.webp');
    background-size: cover;
    background-position: center 90%;
    background-repeat: no-repeat;
    color: var(--color-white);
    padding: var(--space-xl) 0;
    text-align: center;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.hero .subhead {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
    opacity: 0.95;
}

.hero .timeline {
    margin-top: var(--space-md);
    font-size: 0.875rem;
    opacity: 0.9;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: var(--color-white);
    color: var(--color-primary);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.125rem;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* The Gap Section */
#the-gap h2 {
    text-align: center;
    margin-bottom: var(--space-md);
}

#the-gap > .container > p {
    text-align: center;
    margin-bottom: var(--space-md);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin: var(--space-md) 0;
}

.feature {
    padding: var(--space-md);
    background: var(--color-light);
    border-radius: var(--border-radius);
    text-align: center;
}

.feature h3 {
    color: var(--color-primary);
}

#the-gap .emphasis {
    text-align: center;
    display: block;
    margin-top: var(--space-md);
}

/* Commitment Section */
#commitment {
    text-align: center;
}

/* Three Column Grid */
.three-column-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

/* Card Styling */
.card {
    background: var(--color-white);
    padding: var(--space-md);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    display: block;
}

.card h3 {
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.card ul li {
    padding: var(--space-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.card ul li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.card p {
    margin: 0;
    line-height: 1.6;
}

.section-intro {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    color: var(--color-medium);
}

.lead {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-dark);
}


/* Images Row */
.images-row {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.image-half {
    width: 100%;
    min-height: 400px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.image-device {
    background-image: url('../assets/images/Site_dmtn3_1.webp');
    background-position: center 18%;
    filter: blur(1.5px);
}

.image-dashboard {
    background-image: url('../assets/images/hand_holding_ipad_dash.webp');
    filter: blur(1px);
}

.checklist {
    margin: var(--space-md) auto;
    text-align: left;
    display: inline-block;
}

.checklist li {
    padding: var(--space-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1.125rem;
}

.checklist li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

/* Beta Form Section */
#beta-signup {
    text-align: center;
}

.form-intro {
    font-weight: 500;
    margin-bottom: var(--space-md);
    color: var(--color-medium);
}

.beta-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-dark);
}

.required {
    color: var(--color-error);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.2s;
    font-family: var(--font-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group input.error,
.form-group textarea.error,
.form-group select.error {
    border-color: var(--color-error);
}

.error-message {
    display: block;
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--space-xs);
    min-height: 1.25rem;
}

.submit-button {
    width: 100%;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.125rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.submit-button:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

.submit-button:disabled {
    background: var(--color-medium);
    cursor: not-allowed;
    transform: none;
}

.form-status {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
}

.form-status.success {
    background: #d1fae5;
    color: #065f46;
}

.form-status.error {
    background: #fee2e2;
    color: #991b1b;
}

.response-time {
    margin-top: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-medium);
}

/* Footer */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--space-lg) 0;
    text-align: center;
}

.footer .tagline {
    font-size: 1.125rem;
    margin: 0 0 var(--space-sm) 0;
    opacity: 0.95;
}

.footer .contact {
    font-size: 1rem;
    margin: 0;
    opacity: 0.9;
}

.footer .contact a {
    color: var(--color-white);
    text-decoration: underline;
}

.footer .contact a:hover {
    opacity: 0.8;
}

/* Tablet Styles */
@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }

    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.25rem;
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .three-column-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }

    .checklist {
        columns: 2;
        column-gap: var(--space-lg);
    }

    /* Images Row - Side by side on tablet/desktop */
    .images-row {
        flex-direction: row;
    }

    .image-half {
        width: 50%;
        min-height: 500px;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    h1 {
        font-size: 3.5rem;
    }

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

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