/*
Theme Name: Interactive Mandarin
Description: A modern, mobile-first WordPress theme for Interactive Mandarin Chinese Language Center
Version: 1.0
Author: Interactive Mandarin
*/

/* Mobile-First Responsive Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    font-size: 16px;
}

/* Container and Grid System */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    padding: 0 15px;
    flex: 1;
}

.col-1 { flex: 0 0 8.333333%; }
.col-2 { flex: 0 0 16.666667%; }
.col-3 { flex: 0 0 25%; }
.col-4 { flex: 0 0 33.333333%; }
.col-6 { flex: 0 0 50%; }
.col-8 { flex: 0 0 66.666667%; }
.col-12 { flex: 0 0 100%; }

/* Mobile-first breakpoints */
@media (max-width: 768px) {
    .col-sm-12 { flex: 0 0 100%; }
    .col-sm-6 { flex: 0 0 50%; }
    .row { margin: 0; }
    .col { padding: 0 10px; }
}

/* Header */
.site-header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    background: #E74C3C;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: #E74C3C;
}

/* Mobile Navigation */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #FFE4E1 0%, #FFF0F5 100%);
    padding: 120px 0 60px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    color: #2C3E50;
    margin-bottom: 1rem;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: #7F8C8D;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 0 40px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: #E74C3C;
    color: white;
}

.btn-primary:hover {
    background: #C0392B;
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid #E74C3C;
    color: #E74C3C;
    background: transparent;
}

.btn-outline:hover {
    background: #E74C3C;
    color: white;
}

@media (max-width: 768px) {
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
        display: block;
        text-align: center;
        margin: 10px 0;
    }
}

/* Sections */
.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #2C3E50;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: #E74C3C;
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

@media (max-width: 768px) {
    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* Feature Cards */
.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: #E74C3C;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    color: #2C3E50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    margin-bottom: 2rem;
    transition: transform 0.3s;
}

.course-card:hover {
    transform: translateY(-5px);
}

.course-card-header {
    padding: 2rem;
    text-align: center;
}

.course-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: white;
}

.course-card h3 {
    color: #2C3E50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.course-card-body {
    padding: 0 2rem 2rem;
}

/* Testimonials */
.testimonial {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

.testimonial::before {
    content: '"';
    font-size: 4rem;
    color: #E74C3C;
    position: absolute;
    top: -10px;
    left: 20px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.testimonial-author {
    font-weight: bold;
    color: #2C3E50;
}

/* Footer */
.site-footer {
    background: #2C3E50;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    color: #E74C3C;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #E74C3C;
}

.footer-bottom {
    border-top: 1px solid #34495E;
    padding-top: 1rem;
    text-align: center;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Contact Form */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2C3E50;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #E0E0E0;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #E74C3C;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }

/* Background Colors */
.bg-light { background-color: #F8F9FA; }
.bg-coral { background-color: #FFE4E1; }

/* Responsive Images */
img {
    max-width: 100%;
    height: auto;
}

/* WordPress Content Styles */
.entry-content {
    line-height: 1.8;
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
    color: #2C3E50;
    margin: 2rem 0 1rem;
}

.entry-content p {
    margin-bottom: 1rem;
}

.entry-content ul,
.entry-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.entry-content li {
    margin-bottom: 0.5rem;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(231, 76, 60, 0.3);
    border-radius: 50%;
    border-top-color: #E74C3C;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    clip-path: inset(50%);
    border: 0;
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #E74C3C;
    outline-offset: 2px;
}