/* ============================================
   SENIORS FITNESS - LEAD CAPTURE HOMEPAGE
   Mobile-first, accessibility-focused design
   ============================================ */

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

:root {
    /* WCAG AA compliant color palette */
    --primary-color: #006666;
    --primary-dark: #004d4d;
    --primary-light: #008080;
    --accent-color: #ff6b35;
    --text-dark: #1a1a1a;
    --text-light: #ffffff;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #d1d5db;
    --success-color: #047857;
    --error-color: #dc2626;

    /* Typography - larger for seniors */
    --font-base: 18px;
    --font-lg: 20px;
    --font-xl: 24px;
    --font-2xl: 32px;
    --font-3xl: 42px;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
}

/* Base Typography */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: var(--font-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-3xl);
}

h2 {
    font-size: var(--font-2xl);
}

h3 {
    font-size: var(--font-xl);
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Accessibility */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-sm);
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-lg);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 48px;
    line-height: 1.2;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    font-size: var(--font-xl);
    padding: var(--spacing-md) var(--spacing-xl);
    min-height: 56px;
}

.btn:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

label {
    display: block;
    font-size: var(--font-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"] {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    min-height: 48px;
    transition: border-color 0.2s ease;
}

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

input:invalid:not(:placeholder-shown) {
    border-color: var(--error-color);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
    padding: var(--spacing-xl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-logo {
    max-width: 120px;
    margin-bottom: var(--spacing-md);
}

.hero-content h1 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.hero-subheading {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.hero-benefits {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.hero-benefits li {
    font-size: var(--font-lg);
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.hero-benefits li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
    font-size: var(--font-xl);
}

.hero-form-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.hero-form-card h2 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   VISUAL PROOF SECTION
   ============================================ */
.visual-proof {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.proof-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.proof-slide {
    display: none;
    position: relative;
}

.proof-slide.active {
    display: block;
}

.proof-slide img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    display: block;
}

.proof-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: var(--spacing-lg);
}

.proof-text {
    color: var(--text-light);
    font-size: var(--font-2xl);
    font-weight: 700;
    text-align: center;
    margin: 0;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.carousel-btn {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    border-radius: 50%;
    width: 56px;
    height: 56px;
    font-size: var(--font-xl);
    cursor: pointer;
    transition: all 0.2s ease;
}

.carousel-btn:hover,
.carousel-btn:focus {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

/* ============================================
   WHAT WE DO SECTION
   ============================================ */
.what-we-do {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.what-we-do h2 {
    margin-bottom: var(--spacing-xl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.benefit-card {
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: transform 0.2s ease;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.benefit-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    font-size: var(--font-lg);
    margin: 0;
}

/* ============================================
   WHO IT'S FOR SECTION
   ============================================ */
.who-its-for {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
    text-align: center;
}

.who-its-for h2 {
    margin-bottom: var(--spacing-xl);
}

.qualification-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.qualification-list {
    list-style: none;
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: left;
}

.qualification-list li {
    font-size: var(--font-lg);
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.qualification-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: var(--font-2xl);
}

/* ============================================
   SOCIAL PROOF SECTION
   ============================================ */
.social-proof {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.social-proof h2 {
    margin-bottom: var(--spacing-xl);
}

.testimonial-slider {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.testimonial-card blockquote {
    margin: 0;
}

.testimonial-card p {
    font-size: var(--font-xl);
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.testimonial-card cite {
    font-size: var(--font-lg);
    font-style: normal;
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */
.how-it-works {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
    text-align: center;
}

.how-it-works h2 {
    margin-bottom: var(--spacing-xl);
}

.steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.step {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.step-number {
    display: inline-block;
    width: 56px;
    height: 56px;
    line-height: 56px;
    background-color: var(--accent-color);
    color: var(--text-light);
    border-radius: 50%;
    font-size: var(--font-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.step p {
    font-size: var(--font-lg);
    margin: 0;
}

/* ============================================
   SCHEDULE SECTION
   ============================================ */
.schedule-preview {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.schedule-preview h2 {
    margin-bottom: var(--spacing-xl);
}

.schedule-table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--spacing-xl);
}

.schedule-table {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-collapse: collapse;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.schedule-table th,
.schedule-table td {
    padding: var(--spacing-md);
    text-align: left;
    font-size: var(--font-lg);
}

.schedule-table th {
    background-color: var(--primary-color);
    color: var(--text-light);
    font-weight: 600;
}

.schedule-table tr:nth-child(even) {
    background-color: var(--bg-light);
}

.schedule-table tr:hover {
    background-color: rgba(0, 102, 102, 0.05);
}

/* ============================================
   INSTRUCTOR SECTION
   ============================================ */
.instructor {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.instructor h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.instructor-profile {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.instructor-photo {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--radius-lg);
    margin: 0 auto;
    display: block;
}

.instructor-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.instructor-credentials {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.instructor-bio {
    font-size: var(--font-lg);
    line-height: 1.7;
}

/* ============================================
   SECONDARY CAPTURE SECTION
   ============================================ */
.secondary-capture {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
    text-align: center;
}

.secondary-capture h2 {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.inline-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.inline-form .form-group.inline {
    margin: 0;
    flex: 1;
}

.inline-form input {
    width: 100%;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--spacing-xl) 0;
    background-color: var(--text-dark);
    color: var(--text-light);
}

.footer-content {
    text-align: center;
}

.footer-phone,
.footer-email,
.footer-location {
    margin-bottom: var(--spacing-sm);
}

.footer-phone a {
    font-size: var(--font-2xl);
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
}

.footer-phone a:hover,
.footer-phone a:focus {
    color: var(--accent-color);
}

.footer-email a,
.footer-location {
    font-size: var(--font-lg);
    color: var(--text-light);
    text-decoration: none;
}

.footer-email a:hover,
.footer-email a:focus {
    text-decoration: underline;
}

.footer-social {
    margin: var(--spacing-lg) 0;
}

.social-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--text-light);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-lg);
    font-weight: 600;
    transition: all 0.2s ease;
}

.social-link:hover,
.social-link:focus {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.footer-accessibility {
    font-size: var(--font-base);
    margin-top: var(--spacing-lg);
    opacity: 0.9;
}

.footer-accessibility a {
    color: var(--text-light);
    text-decoration: underline;
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    font-size: var(--font-3xl);
    cursor: pointer;
    color: var(--text-dark);
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
}

.modal-close:hover,
.modal-close:focus {
    color: var(--accent-color);
}

/* ============================================
   RESPONSIVE DESIGN - TABLET
   ============================================ */
@media (min-width: 768px) {
    :root {
        --font-base: 20px;
        --font-lg: 22px;
        --font-xl: 26px;
        --font-2xl: 36px;
        --font-3xl: 48px;
    }

    .hero-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .qualification-grid {
        grid-template-columns: 1fr 1fr;
    }

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

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

    .instructor-profile {
        grid-template-columns: 300px 1fr;
    }

    .inline-form {
        flex-direction: row;
    }
}

/* ============================================
   RESPONSIVE DESIGN - DESKTOP
   ============================================ */
@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }

    .hero {
        min-height: 700px;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .hero-form-card,
    .secondary-capture,
    .modal,
    .carousel-controls {
        display: none;
    }
}

/* ============================================
   HIGH CONTRAST MODE
   ============================================ */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
    }

    .btn {
        border: 2px solid currentColor;
    }

    input {
        border-width: 3px;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}