/*
Theme Name: Ikenga Academy
Theme URI: https://learn.ikenga.ng
Author: Nomadic Techs
Author URI: https://ikenga.ng
Description: A modern learning management theme for Ikenga Academy - teaching tech skills and culinary arts globally
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ikenga-academy
Tags: education, lms, learning, courses, responsive, dark-mode
*/

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

:root {
    /* Brand Colors */
    --color-red: #E53935;
    --color-red-dark: #C62828;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray: #666666;
    --color-gray-light: #F5F5F5;
    --color-gray-medium: #CCCCCC;
    
    /* Theme Variables (Light Mode Default) */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-tertiary: #FAFAFA;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #E0E0E0;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 72px;
    
    /* Typography */
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #242424;
    --text-primary: #FFFFFF;
    --text-secondary: #CCCCCC;
    --text-tertiary: #999999;
    --border-color: #333333;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-weight: var(--font-weight-regular);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

a {
    color: var(--color-red);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-red-dark);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

[data-theme="dark"] .site-header {
    background: rgba(10, 10, 10, 0.85);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    transition: opacity var(--transition-fast);
}

.site-logo:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin: 0;
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-red);
    background: var(--bg-secondary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle,
.currency-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.theme-toggle:hover,
.currency-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--color-red);
}

.btn-primary {
    background: var(--color-red);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-navigation {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        transform: translateY(-120%);
        opacity: 0;
        transition: all var(--transition-base);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }
    
    .main-navigation.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-menu a {
        display: block;
        padding: 16px;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    margin-top: 64px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-red);
}

.hero-content {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--color-red);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-red) 0%, var(--color-red-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-secondary {
    background: transparent;
    color: var(--color-red);
    padding: 12px 24px;
    border: 2px solid var(--color-red);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--color-red);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   STATS BAR
   ============================================ */

.stats-section {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    color: var(--color-red);
    margin-bottom: 8px;
}

.stat-item p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin: 0;
}

/* ============================================
   SKILLS GRID
   ============================================ */

.skills-section {
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.skill-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    position: relative;
}

.skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-red);
}

.skill-card.new::after {
    content: 'New';
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--color-red);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
}

.skill-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-red);
}

.skill-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.skill-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

/* ============================================
   COURSES SECTION
   ============================================ */

.courses-section {
    background: var(--bg-secondary);
    padding: var(--spacing-xl) var(--spacing-md);
}

.courses-container {
    max-width: 1400px;
    margin: 0 auto;
}

.course-filters {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-red);
    color: white;
    border-color: var(--color-red);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.course-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.course-thumbnail {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-red) 0%, var(--color-red-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.course-content {
    padding: var(--spacing-md);
}

.course-category {
    display: inline-block;
    background: var(--bg-secondary);
    color: var(--color-red);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.course-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.course-meta {
    display: flex;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============================================
   PRICING SECTION
   ============================================ */

.pricing-section {
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pricing-card {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-red);
}

.pricing-card.featured {
    border-color: var(--color-red);
    border-width: 3px;
    background: linear-gradient(135deg, rgba(229, 57, 53, 0.05) 0%, rgba(198, 40, 40, 0.05) 100%);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-red);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-red);
    margin: var(--spacing-sm) 0;
}

.pricing-period {
    color: var(--text-secondary);
    font-size: 1rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.pricing-features {
    list-style: none;
    margin: var(--spacing-md) 0;
    text-align: left;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-red);
    font-weight: var(--font-weight-bold);
    margin-right: 12px;
}

.pricing-free {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--text-secondary);
}

.footer-links h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.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); }

.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); }