/* 
 * Rivaldo Junior BJJ Academy - Main CSS File
 * 
 * This stylesheet contains all the main styles for the website
 * including layout, typography, colors, and component styles.
 */

/* ======================================
 * Table of Contents:
 * 1. CSS Variables & Base Styles
 * 2. Typography
 * 3. Layout & Grid
 * 4. Header & Navigation
 * 5. Buttons & Links
 * 6. Hero Section
 * 7. Features Section
 * 8. Programs Section
 * 9. CTA Section
 * 10. Footer
 * 11. Utility Classes
 * ====================================== */

/* ======================================
 * 1. CSS Variables & Base Styles
 * ====================================== */
 :root {
    /* Color Palette */
    --primary-color: #1a2456;       /* Deep blue */
    --secondary-color: #e63946;     /* Red accent */
    --light-color: #f1faee;         /* Off-white */
    --dark-color: #1d3557;          /* Dark blue */
    --text-color: #333333;          /* Main text color */
    --text-light: #6c757d;          /* Light text color */
    --bg-light: #f8f9fa;            /* Light background */
    --bg-dark: #212529;             /* Dark background */
    --border-color: #dee2e6;        /* Border color */
    
    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Box Shadow */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container Width */
    --container-max-width: 1200px;
    --container-padding: 1rem;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    color: var(--text-color);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-normal);
}

/* ======================================
 * 2. Typography
 * ====================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

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

.highlight {
    color: var(--secondary-color);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2rem;
    margin-top: -1.5rem;
    margin-bottom: var(--spacing-lg);
}

/* ======================================
 * 3. Layout & Grid
 * ====================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
}

/* ======================================
 * 4. Header & Navigation
 * ====================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

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

.logo img {
    height: 60px;
    width: auto;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-menu li a {
    font-family: var(--heading-font);
    font-weight: 600;
    color: var(--dark-color);
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-normal);
}

.nav-menu li a:hover::after,
.nav-menu li.active a::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* ======================================
 * 5. Buttons & Links
 * ====================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-family: var(--heading-font);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: #d12836;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: #131a3f;
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* ======================================
 * 6. Hero Section
 * ====================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    margin-top: 0;
    padding: 0;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
    z-index: -1;
}

.hero-content {
    color: white;
    max-width: 800px;
    z-index: 1;
}

.hero h1 {
    color: white;
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* ======================================
 * 7. Features Section
 * ====================================== */
.features {
    background-color: var(--bg-light);
}

.feature-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* ======================================
 * 8. Programs Section
 * ====================================== */
.program-card {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.program-card:hover {
    transform: translateY(-10px);
}

.program-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.program-content {
    padding: var(--spacing-md);
    background-color: white;
}

.program-content h3 {
    margin-bottom: var(--spacing-sm);
}

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

.programs-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ======================================
 * 9. CTA Section
 * ====================================== */
.cta-section {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    max-width: 600px;
    margin: 0 auto var(--spacing-md) auto;
    font-size: 1.2rem;
}

/* ======================================
 * 10. Footer
 * ====================================== */
.site-footer {
    background-color: var(--bg-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-info p {
    margin-bottom: var(--spacing-md);
    color: #adb5bd;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* FAQ Styles */
.faq-section {
    padding: 60px 0;
    background-color: #f9f9f9;
}

.faq-container {
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    margin-bottom: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    background-color: #fff;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.faq-item.active {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.faq-question {
    position: relative;
    padding: 20px 50px 20px 20px;
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: #f5f5f5;
}

.faq-toggle {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    font-weight: 300;
    color: #666;
    transition: all 0.3s ease;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
}

.faq-answer p {
    margin-top: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .faq-question {
        font-size: 16px;
        padding: 15px 40px 15px 15px;
    }
    
    .faq-toggle {
        right: 15px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 15px 15px;
    }
}


.footer-nav h4,
.footer-contact h4,
.footer-hours h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-nav ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-nav ul li a:hover {
    color: var(--secondary-color);
}

.footer-contact address {
    font-style: normal;
}

.footer-contact address p {
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: 10px;
    color: #adb5bd;
}

.footer-contact address p i {
    color: var(--secondary-color);
}

.hours-list li {
    margin-bottom: var(--spacing-xs);
    color: #adb5bd;
}

.hours-list li span {
    font-weight: 600;
    color: white;
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #adb5bd;
    font-size: 0.9rem;
}

/* ======================================
 * 11. Utility Classes
 * ====================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-3 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-4 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-5 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.px-1 { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-3 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-4 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-5 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }


.instructors {
    background-color: #f9f9f9; /* Light background for contrast */
    padding: 40px 20px; /* Add padding for spacing */
}

.container {
    max-width: 1200px; /* Limit container width */
    margin: 0 auto; /* Center the container */
}

.instructors-grid {
    display: flex; /* Use flexbox for layout */
    justify-content: center; /* Center the grid */
    flex-wrap: wrap; /* Allow wrapping */
}

.instructor-card {
    background: white; /* White background for cards */
    border-radius: 8px; /* Rounded corners */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); /* Subtle shadow */
    margin: 20px; /* Space between cards */
    overflow: hidden; /* Clip overflow */
    transition: transform 0.3s; /* Smooth transform effect */
    width: 400px; /* Fixed width for cards */
}

.instructor-card:hover {
    transform: translateY(-5px); /* Lift card on hover */
}

.instructor-image img {
    width: 100%; /* Responsive image */
    height: auto; /* Maintain aspect ratio */
}

.instructor-info {
    padding: 20px; /* Padding inside the card */
}

.instructor-title {
    font-weight: bold; /* Bold title */
    font-size: 1.2em; /* Slightly larger font size */
}

.instructor-rank {
    color: #000000; /* Blue color for rank */
    font-weight: bold; /* Bold rank */
}

.instructor-bio {
    margin: 10px 0; /* Space above and below bio */
    line-height: 1.6; /* Improved line spacing */
}

.instructor-achievements p {
    margin: 5px 0; /* Space between achievements */
    font-style: italic; /* Italic for achievements */
}