/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* CSS Variables */
:root {
 --primary-color: #0284c7;
 --primary-dark: #0369a1;
 --secondary-color: #7dd3fc;
 --text-dark: #0f172a;
 --text-light: #475569;
 --text-muted: #64748b;
 --bg-light: #f1f5f9;
 --bg-white: #ffffff;
 --border-color: #e2e8f0;
 --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
 --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
 --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
 --radius-sm: 8px;
 --radius-md: 12px;
 --radius-lg: 16px;
 --transition: all 0.3s ease-in-out;
 --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Base Reset & Typography */
*, *::before, *::after {
 box-sizing: border-box;
 margin: 0;
 padding: 0;
}

html { scroll-behavior: smooth; }

body {
 font-family: var(--font-main);
 font-size: 16px;
 line-height: 1.6;
 color: var(--text-light);
 background: var(--bg-white);
 -webkit-font-smoothing: antialiased;
 padding-top: 80px;
}

h1, h2, h3, h4, h5, h6 {
 font-weight: 700;
 line-height: 1.2;
 color: var(--text-dark);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); }

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

a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }

/* Global Layout */
.container {
 max-width: 1200px;
 margin: 0 auto;
 padding: 0 24px;
}

.section { padding: 96px 0; }
.section-light { background-color: var(--bg-light); }

.section-header {
 text-align: center;
 max-width: 750px;
 margin: 0 auto 64px;
}

.section-label {
 display: inline-block;
 background-color: var(--secondary-color);
 color: var(--primary-dark);
 padding: 8px 20px;
 border-radius: 999px;
 font-size: 0.9rem;
 font-weight: 600;
 margin-bottom: 20px;
}

.section-title { margin-bottom: 24px; }
.section-subtitle { font-size: 1.125rem; line-height: 1.7; max-width: 600px; margin: 0 auto; }

/* Header & Navigation */
.header {
 position: fixed;
 top: 0;
 left: 0;
 right: 0;
 z-index: 1000;
 background: rgba(255, 255, 255, 0.85);
 backdrop-filter: blur(10px);
 border-bottom: 1px solid var(--border-color);
 height: 80px;
 transition: var(--transition);
}

.nav {
 display: flex;
 align-items: center;
 justify-content: space-between;
 height: 100%;
}

.nav-logo {
 font-size: 1.6rem;
 font-weight: 700;
 color: var(--text-dark);
 display: flex;
 align-items: center;
 gap: 8px;
}
.nav-logo i { color: var(--primary-color); }

.nav-links {
 display: flex;
 align-items: center;
 gap: 24px;
 list-style: none;
}

.nav-links a {
 font-weight: 600;
 color: var(--text-light);
 padding: 8px 12px;
 border-radius: var(--radius-sm);
}

.nav-links a:hover,
.nav-links a.active {
 color: var(--primary-color);
 background-color: var(--bg-light);
}

.nav-actions { display: flex; align-items: center; gap: 12px; }

.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 padding: 12px 24px;
 font-size: 1rem;
 font-weight: 600;
 border-radius: var(--radius-md);
 cursor: pointer;
 transition: var(--transition);
 border: 1px solid transparent;
 text-decoration: none;
}
.btn-primary { background-color: var(--primary-color); color: #fff; }
.btn-primary:hover { background-color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn-secondary { background-color: var(--bg-light); color: var(--text-dark); border-color: var(--border-color); }
.btn-secondary:hover { background-color: #e2e8f0; }

.btn-cta { background-color: var(--secondary-color); color: var(--primary-dark); font-weight: 700; }
.btn-cta:hover { background-color: #38bdf8; color: var(--text-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* Hero Section */
.hero { display: flex; align-items: center; text-align: center; }
.hero-inner {
 display: flex;
 flex-direction: column;
 align-items: center;
}
.hero-copy { max-width: 800px; margin-bottom: 48px; }
.hero h1 { margin: 20px 0; }
.hero p { font-size: 1.25rem; max-width: 700px; margin: 0 auto 32px; color: var(--text-light); }
.hero-actions { display: flex; justify-content: center; gap: 16px; margin-bottom: 48px; }
.hero-trust { display: flex; flex-direction: column; align-items: center; gap: 16px; color: var(--text-muted); font-size: 0.9rem; }
.hero-visual {
 width: 100%;
 max-width: 900px;
 padding: 20px;
 background: var(--bg-white);
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-lg);
 border: 1px solid var(--border-color);
}
.hero-visual img { width: 100%; border-radius: var(--radius-sm); }

/* Trusted By Section */
.trusted-by { padding: 48px 0; }
.logo-carousel { display: flex; align-items: center; justify-content: space-around; gap: 40px; flex-wrap: wrap; }
.partner-logo { max-height: 40px; max-width: 140px; object-fit: contain; filter: grayscale(100%); opacity: 0.6; transition: var(--transition); }
.partner-logo:hover { filter: grayscale(0); opacity: 1; }

/* Features Section */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature-card {
 padding: 32px;
 text-align: left;
 background: var(--bg-white);
 border-radius: var(--radius-lg);
 border: 1px solid var(--border-color);
 transition: var(--transition);
}
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.feature-icon {
 width: 56px; height: 56px;
 border-radius: var(--radius-md);
 background-color: var(--primary-color);
 color: #fff;
 display: flex; align-items: center; justify-content: center;
 font-size: 1.75rem;
 margin-bottom: 24px;
}
.feature-card h3 { margin-bottom: 12px; }

/* How It Works Section */
.process-steps { display: flex; gap: 32px; text-align: center; }
.step { flex: 1; padding: 0 16px; position: relative; }
.step:not(:last-child)::after {
 content: ''; position: absolute;
 top: 28px; left: 50%;
 width: 100%;
 transform: translateX(16px);
 border-top: 2px dashed var(--border-color);
}
.step-number {
 width: 56px; height: 56px;
 border-radius: 50%;
 background-color: var(--bg-light);
 border: 2px solid var(--border-color);
 color: var(--primary-color);
 display: flex; align-items: center; justify-content: center;
 font-size: 1.5rem; font-weight: 700;
 margin: 0 auto 24px;
 position: relative; z-index: 2;
}
.step h3 { margin-bottom: 12px; }

/* Course Plans Section */
.plans-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; align-items: start; }
.plan-card {
 background: var(--bg-white);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: 40px;
 display: flex;
 flex-direction: column;
 transition: var(--transition);
}
.plan-card.featured { border-color: var(--primary-color); border-width: 2px; transform: scale(1.05); }
.plan-card h3 { margin-bottom: 8px; }
.plan-description { color: var(--text-muted); margin-bottom: 32px; flex-grow: 1; }
.plan-features { list-style: none; margin-bottom: 40px; }
.plan-features li { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.plan-features i { color: var(--primary-color); }
.plan-card .btn { width: 100%; padding: 16px 24px; }
.plan-tag {
 display: inline-block;
 background-color: var(--secondary-color);
 color: var(--primary-dark);
 padding: 4px 12px;
 border-radius: 999px;
 font-size: 0.8rem;
 font-weight: 600;
 margin-left: 12px;
}

/* Testimonials / Case Study Section */
.case-study-card {
 background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
 color: #fff;
 border-radius: var(--radius-lg);
 padding: 64px;
 display: flex;
 gap: 64px;
 align-items: center;
}
.case-study-quote { flex: 2; font-size: 1.5rem; line-height: 1.5; font-weight: 500; }
.case-study-author { margin-top: 32px; display: flex; align-items: center; gap: 16px; }
.case-study-author img { width: 64px; height: 64px; border-radius: 50%; border: 3px solid #fff; }
.author-info strong { font-size: 1.125rem; }
.case-study-logo { flex: 1; text-align: right; }
.case-study-logo img { max-height: 60px; filter: brightness(0) invert(1); opacity: 0.8; }

/* FAQ Section */
.faq-container { max-width: 800px; margin: 0 auto; }
.faq-item {
 border-bottom: 1px solid var(--border-color);
 padding: 24px 0;
}
.faq-question {
 display: flex;
 justify-content: space-between;
 align-items: center;
 cursor: pointer;
 font-size: 1.125rem;
 font-weight: 600;
 color: var(--text-dark);
}
.faq-question:hover { color: var(--primary-color); }
.faq-icon { transition: transform 0.3s ease; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
 max-height: 0;
 overflow: hidden;
 transition: max-height 0.4s ease, padding-top 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 300px; padding-top: 16px; }

/* CTA Section */
.cta-section {
 background: var(--bg-light);
 border-radius: var(--radius-lg);
 padding: 80px 40px;
 text-align: center;
}

/* Footer */
.footer {
 background: var(--text-dark);
 color: #a1a1aa;
 padding: 80px 0 32px;
 margin-top: 96px;
}
.footer-grid {
 display: grid;
 grid-template-columns: 2fr 1fr 1fr 1.5fr;
 gap: 48px;
 margin-bottom: 64px;
}
.footer-brand .footer-logo { color: #fff; margin-bottom: 16px; }
.footer-heading {
 font-size: 1rem;
 font-weight: 600;
 color: #fff;
 margin-bottom: 24px;
 text-transform: uppercase;
 letter-spacing: 0.5px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: #a1a1aa; }
.footer-links a:hover { color: var(--secondary-color); }
.footer-contact-item { display: flex; gap: 12px; margin-bottom: 16px; align-items: flex-start; }
.footer-contact-item i { color: var(--secondary-color); font-size: 1.1rem; margin-top: 3px; }
.footer-bottom {
 border-top: 1px solid #3f3f46;
 padding-top: 32px;
 display: flex;
 justify-content: space-between;
 align-items: center;
 font-size: 0.9rem;
}
.footer-legal-links a { color: #a1a1aa; margin-left: 20px; }
.footer-legal-links a:hover { color: #fff; }

/* Form Styles */
.form-grid { display: grid; gap: 20px; }
.form-grid.two-cols { grid-template-columns: 1fr 1fr; }
.form-group { display: flex; flex-direction: column; }
.form-group label { font-weight: 600; margin-bottom: 8px; color: var(--text-dark); }
.form-group input, .form-group textarea {
 width: 100%;
 padding: 12px 16px;
 border: 1px solid var(--border-color);
 border-radius: var(--radius-md);
 transition: var(--transition);
 font-family: var(--font-main);
 font-size: 1rem;
}
.form-group input:focus, .form-group textarea:focus {
 outline: none;
 border-color: var(--primary-color);
 box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.checkbox-group { flex-direction: row; align-items: center; gap: 12px; font-size: 0.9rem; }
.checkbox-group label a { font-weight: 600; }

/* Form Validation Styles */
.input-error { border-color: #dc2626 !important; box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1) !important; }
.field-error { color: #dc2626; font-size: 0.85rem; margin-top: 4px; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.3); border-radius: 50%; border-top-color: #fff; animation: spin 0.8s linear infinite; margin-right: 8px; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
button[disabled] { opacity: 0.7; cursor: not-allowed; }

/* About Page Styles */
.about-hero { text-align: center; padding: 64px 0; }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.team-member { text-align: center; }
.team-photo { width: 150px; height: 150px; border-radius: 50%; object-fit: cover; margin: 0 auto 20px; box-shadow: var(--shadow-md); }
.team-member h3 { margin-bottom: 4px; }
.team-role { color: var(--primary-color); font-weight: 600; }
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px; }

/* Courses Page */
.courses-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.course-card {
 background: var(--bg-white);
 border-radius: var(--radius-lg);
 border: 1px solid var(--border-color);
 overflow: hidden;
 display: flex;
 flex-direction: column;
 transition: var(--transition);
}
.course-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.course-card-img { width: 100%; height: 220px; object-fit: cover; }
.course-card-content { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
.course-card-content h3 { margin-bottom: 12px; }
.course-card-content p { flex-grow: 1; margin-bottom: 24px; }

/* Contact Page */
.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.contact-info-item { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.contact-info-item i { font-size: 1.5rem; color: var(--primary-color); width: 30px; }
.map-container { width: 100%; height: 450px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); margin-top: 32px; }

/* Legal Pages */
.legal-content { max-width: 800px; margin: 0 auto; }
.legal-content h2 { margin-top: 40px; margin-bottom: 16px; border-bottom: 1px solid var(--border-color); padding-bottom: 8px; }
.legal-content h2:first-of-type { margin-top: 0;}
.legal-content p { margin-bottom: 16px; }
.legal-content ul { margin-left: 20px; margin-bottom: 16px; }

/* Cookie Banner */
#cookie-banner {
 position: fixed;
 bottom: 20px;
 left: 20px;
 right: 20px;
 max-width: 500px;
 background: var(--text-dark);
 color: #fff;
 padding: 24px;
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-lg);
 z-index: 2000;
 display: none;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
 animation: slideInUp 0.5s ease;
}
#cookie-banner p { margin: 0; font-size: 0.9rem; }
#cookie-banner p a { color: var(--secondary-color); text-decoration: underline; }
#cookie-banner-actions { display: flex; gap: 12px; }
.cookie-btn { padding: 8px 16px; border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; }
.cookie-accept { background: var(--primary-color); color: #fff; border: none; }
.cookie-decline { background: #475569; color: #fff; border: none; }
@keyframes slideInUp { from { transform: translateY(100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* Responsive */
@media (max-width: 1024px) {
 .features-grid { grid-template-columns: repeat(2, 1fr); }
 .plans-grid { grid-template-columns: 1fr; }
 .plan-card.featured { transform: scale(1); }
 .case-study-card { flex-direction: column; text-align: center; gap: 32px; padding: 40px; }
 .case-study-author { margin-top: 24px; }
 .case-study-logo { text-align: center; }
 .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
 body { padding-top: 70px; }
 .header { height: 70px; }
 .nav-toggle { display: block; z-index: 1001; }
 .nav-links {
 position: fixed;
 top: 0; left: 0; right: 0; bottom: 0;
 background: #fff;
 flex-direction: column;
 justify-content: center;
 gap: 32px;
 transform: translateX(100%);
 transition: transform 0.4s ease;
 display: flex;
 }
 .nav-links.active { transform: translateX(0); }
 .nav-actions { display: none; } /* Hide buttons on mobile nav bar, put in menu if needed */
 .hero-visual { padding: 12px; }
 .hero p { font-size: 1.1rem; }
 .features-grid, .team-grid { grid-template-columns: 1fr; }
 .process-steps { flex-direction: column; gap: 48px; }
 .step:not(:last-child)::after { display: none; }
 .contact-container { grid-template-columns: 1fr; }
 .footer-grid { grid-template-columns: 1fr; text-align: center; }
 .footer-contact-item { justify-content: center; }
 .footer-bottom { flex-direction: column; gap: 16px; }
 .courses-grid { grid-template-columns: 1fr; }
}