/* CourseHub — modern eLearning platform */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
input, select, textarea, button { font: inherit; }
.hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }

.reveal { transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.active, .reveal.in-view { opacity: 1; transform: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 20px; border-radius: 8px; font-size: 0.92rem; font-weight: 600; transition: all .2s ease; border: 1.5px solid transparent; cursor: pointer; }
.btn-large { padding: 14px 28px; font-size: 1rem; }
.btn-sm { padding: 7px 14px; font-size: 0.82rem; border-radius: 6px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-secondary); transform: translateY(-1px); box-shadow: 0 8px 20px -10px rgba(124,58,237,0.5); }
.btn-white { background: #fff; color: var(--color-primary); }
.btn-white:hover { background: var(--color-bg-soft); transform: translateY(-1px); box-shadow: 0 8px 20px -10px rgba(0,0,0,0.2); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: #fff; color: var(--color-primary); }

/* Header */
.topbar { background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--color-border); }
.topbar-inner { display: flex; align-items: center; gap: 20px; padding: 14px 0; }
.logo { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-title); font-weight: 800; font-size: 1.3rem; color: var(--color-primary); }
.logo-mark { display: inline-flex; width: 32px; height: 32px; background: linear-gradient(135deg, var(--color-primary), #ec4899); color: #fff; border-radius: 8px; align-items: center; justify-content: center; font-size: 0.85rem; }
.nav { display: flex; gap: 24px; margin-right: auto; margin-left: 12px; }
.nav a { color: var(--color-text); font-weight: 500; font-size: 0.92rem; transition: color .2s ease; }
.nav a:hover { color: var(--color-primary); }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.search-mini { display: flex; align-items: center; gap: 6px; background: var(--color-bg-soft); padding: 8px 14px; border-radius: 100px; min-width: 180px; }
.search-icon { font-size: 0.85rem; opacity: 0.6; }
.search-mini input { background: transparent; border: 0; outline: none; font-size: 0.86rem; color: var(--color-text); width: 100%; }
.search-mini input::placeholder { color: var(--color-text-soft); }
.hamburger { display: none; background: none; border: 0; width: 32px; height: 32px; flex-direction: column; justify-content: space-around; padding: 6px 0; cursor: pointer; }
.hamburger span { display: block; height: 2px; background: var(--color-primary); border-radius: 2px; }

@media (max-width: 980px) { .search-mini { display: none; } }
@media (max-width: 880px) {
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; background: #fff; padding: 16px 24px; border-bottom: 1px solid var(--color-border); margin: 0; }
  .nav.open { display: flex; }
  .hamburger { display: flex; }
}

/* Hero */
.hero { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-bg-dark) 100%); color: #fff; padding: 100px 0 120px; text-align: center; position: relative; overflow: hidden; }
.hero-orbs { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.45; }
.orb-1 { top: -80px; left: -100px; width: 360px; height: 360px; background: #ec4899; }
.orb-2 { bottom: -100px; right: -80px; width: 420px; height: 420px; background: #06b6d4; }
.orb-3 { top: 30%; left: 50%; width: 280px; height: 280px; background: var(--color-accent); opacity: 0.25; }
.hero-content { position: relative; max-width: 880px; margin: 0 auto; }
.hero-badge { display: inline-block; padding: 8px 18px; background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.25); color: #fff; border-radius: 100px; font-size: 0.85rem; font-weight: 600; margin-bottom: 24px; backdrop-filter: blur(8px); animation: pulseGlow 3s infinite; }
@keyframes pulseGlow { 0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0); } 50% { box-shadow: 0 0 0 8px rgba(245,158,11,0.15); } }
.hero-content h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); line-height: 1.1; color: #fff; margin-bottom: 22px; font-weight: 800; }
.hero-highlight { background: linear-gradient(135deg, var(--color-accent), #fbbf24); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 1.18rem; color: rgba(255,255,255,0.88); margin-bottom: 36px; max-width: 680px; margin-left: auto; margin-right: auto; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; max-width: 720px; margin: 0 auto 48px; }
@media (max-width: 640px) { .hero-stats { grid-template-columns: repeat(2, 1fr); } }
.hs-item strong { display: block; font-size: 2.2rem; color: #fff; font-weight: 800; font-family: var(--font-title); line-height: 1; }
.hs-item span { display: block; font-size: 0.86rem; color: rgba(255,255,255,0.75); margin-top: 6px; }
.hero-logos { max-width: 720px; margin: 0 auto; }
.logos-label { display: block; font-size: 0.78rem; color: rgba(255,255,255,0.65); margin-bottom: 14px; letter-spacing: 1.5px; }
.logos-row { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; }
.logos-row span { color: rgba(255,255,255,0.7); font-weight: 800; font-size: 0.95rem; letter-spacing: 2px; opacity: 0.65; }

/* Section base */
.section { padding: 80px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.eyebrow { display: inline-block; color: var(--color-primary); font-size: 0.78rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 10px; }
.section-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.4rem); color: var(--color-text); margin-bottom: 12px; font-weight: 800; }
.section-sub { color: var(--color-text-soft); font-size: 1rem; }

/* Courses */
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 920px) { .courses-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .courses-grid { grid-template-columns: 1fr; } }
.course-card { background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 4px 16px -8px rgba(0,0,0,0.1); transition: all .25s ease; display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-6px); box-shadow: 0 16px 36px -18px rgba(124,58,237,0.3); }
.course-thumb { aspect-ratio: 16/9; background-size: cover; background-position: center; position: relative; }
.course-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.25)); }
.course-level { position: absolute; top: 10px; left: 10px; padding: 4px 10px; background: rgba(255,255,255,0.95); color: var(--color-text); font-size: 0.72rem; font-weight: 700; border-radius: 4px; z-index: 1; }
.course-level-incepator { color: var(--color-success); }
.course-level-intermediar { color: var(--color-accent); background: rgba(255,255,255,0.95); }
.course-level-avansat { color: #dc2626; }
.course-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 52px; height: 52px; border-radius: 50%; background: rgba(255,255,255,0.95); color: var(--color-primary); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; opacity: 0; transition: opacity .25s ease; z-index: 1; }
.course-card:hover .course-play { opacity: 1; }
.course-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.course-body h3 { font-size: 1.05rem; color: var(--color-text); line-height: 1.3; }
.course-instructor { display: flex; align-items: center; gap: 8px; font-size: 0.84rem; color: var(--color-text-soft); }
.ci-avatar { width: 24px; height: 24px; border-radius: 50%; background: linear-gradient(135deg, var(--color-primary), #ec4899); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 0.66rem; font-weight: 700; }
.course-rating { display: flex; align-items: center; gap: 6px; font-size: 0.84rem; }
.cr-stars { color: var(--color-accent); }
.course-rating strong { color: var(--color-text); }
.cr-count { color: var(--color-text-soft); font-size: 0.78rem; }
.course-meta { display: flex; gap: 14px; font-size: 0.78rem; color: var(--color-text-soft); }
.course-foot { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 10px; border-top: 1px solid var(--color-border); }
.course-price { font-weight: 800; color: var(--color-primary); font-size: 1.05rem; }

/* Categories */
.section-categories { background: var(--color-bg-soft); }
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 880px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
.cat-card { background: #fff; padding: 24px 20px; border-radius: 14px; display: flex; flex-direction: column; gap: 6px; transition: all .25s ease; border: 1px solid var(--color-border); }
.cat-card:hover { transform: translateY(-4px); border-color: var(--tint, var(--color-primary)); box-shadow: 0 12px 24px -14px color-mix(in srgb, var(--tint, var(--color-primary)) 50%, transparent); }
.cat-icon { width: 48px; height: 48px; border-radius: 12px; background: color-mix(in srgb, var(--tint, var(--color-primary)) 14%, white); color: var(--tint, var(--color-primary)); display: flex; align-items: center; justify-content: center; margin-bottom: 8px; }
.cat-icon svg { width: 26px; height: 26px; stroke: currentColor; fill: none; }
.cat-card strong { color: var(--color-text); font-size: 1rem; }
.cat-card span { color: var(--color-text-soft); font-size: 0.84rem; }

/* Features */
.section-features { background: var(--color-bg-soft); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 880px) { .features-grid { grid-template-columns: 1fr; } }
.feature-card { background: #fff; padding: 32px 26px; border-radius: 16px; border: 1px solid var(--color-border); }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; background: linear-gradient(135deg, var(--color-primary), #ec4899); color: #fff; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.feature-icon svg { width: 28px; height: 28px; stroke: currentColor; fill: none; }
.feature-card h3 { color: var(--color-text); font-size: 1.18rem; margin-bottom: 10px; }
.feature-card p { color: var(--color-text-soft); font-size: 0.94rem; }

/* Instructors */
.instructors-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
@media (max-width: 980px) { .instructors-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .instructors-grid { grid-template-columns: 1fr; } }
.instructor-card { background: #fff; border-radius: 16px; border: 1px solid var(--color-border); overflow: hidden; transition: all .25s ease; }
.instructor-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px -16px rgba(124,58,237,0.3); }
.instructor-avatar { aspect-ratio: 1; background: linear-gradient(135deg, var(--color-primary), #ec4899); display: flex; align-items: center; justify-content: center; overflow: hidden; color: #fff; }
.instructor-avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-initials { font-size: 2.4rem; font-weight: 800; font-family: var(--font-title); }
.instructor-info { padding: 20px; }
.instructor-info h3 { font-size: 1.05rem; color: var(--color-text); margin-bottom: 4px; }
.instructor-role { display: block; color: var(--color-primary); font-size: 0.82rem; font-weight: 600; margin-bottom: 10px; }
.instructor-meta { display: flex; gap: 14px; font-size: 0.82rem; color: var(--color-text-soft); margin-bottom: 10px; }
.instructor-meta strong { color: var(--color-text); }
.instructor-info p { color: var(--color-text-soft); font-size: 0.86rem; }

/* Testimonials */
.section-testimonials { background: var(--color-bg-soft); }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 880px) { .testi-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .testi-grid { grid-template-columns: 1fr; } }
.testi-card { background: #fff; padding: 26px; border-radius: 14px; border: 1px solid var(--color-border); }
.testi-head { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.testi-avatar { width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.86rem; }
.testi-head strong { display: block; color: var(--color-text); font-size: 0.92rem; }
.testi-head span { display: block; font-size: 0.78rem; color: var(--color-text-soft); }
.testi-card .stars { color: var(--color-accent); margin-bottom: 10px; }
.testi-card p { color: var(--color-text); font-style: italic; margin-bottom: 14px; }
.testi-course { display: inline-block; padding: 4px 10px; background: var(--color-bg-soft); color: var(--color-primary); border-radius: 100px; font-size: 0.78rem; font-weight: 600; }

/* Pricing */
.section-pricing { background: var(--color-bg-dark); color: #fff; }
.section-pricing .section-head h2 { color: #fff; }
.section-pricing .eyebrow { color: var(--color-accent); }
.section-pricing .section-sub { color: rgba(255,255,255,0.7); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
@media (max-width: 880px) { .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }
.pricing-card { background: rgba(255,255,255,0.06); padding: 36px 28px; border-radius: 18px; border: 1px solid rgba(255,255,255,0.12); position: relative; display: flex; flex-direction: column; }
.pricing-featured { background: linear-gradient(160deg, var(--color-primary), #4c1d95); border: 0; transform: scale(1.04); box-shadow: 0 20px 40px -20px rgba(124,58,237,0.7); }
@media (max-width: 880px) { .pricing-featured { transform: none; } }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--color-accent); color: #1c1408; padding: 6px 16px; border-radius: 100px; font-size: 0.74rem; font-weight: 700; }
.pricing-tier { font-size: 0.8rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--color-accent); margin-bottom: 10px; }
.pricing-card h3 { font-size: 1.5rem; color: #fff; margin-bottom: 16px; }
.pricing-amount { font-family: var(--font-title); font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 22px; }
.pricing-amount small { font-size: 0.95rem; color: rgba(255,255,255,0.65); font-weight: 400; }
.pricing-list { list-style: none; margin: 0 0 26px; flex: 1; }
.pricing-list li { padding: 6px 0; font-size: 0.92rem; color: rgba(255,255,255,0.88); }
.pricing-card .btn-outline { color: #fff; border-color: rgba(255,255,255,0.5); }
.pricing-card .btn-outline:hover { background: #fff; color: var(--color-primary); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--color-border); border-radius: 12px; padding: 20px 24px; transition: all .2s ease; }
.faq-item[open] { border-color: var(--color-primary); }
.faq-item summary { display: flex; justify-content: space-between; gap: 16px; cursor: pointer; font-weight: 600; color: var(--color-text); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon { width: 18px; height: 18px; position: relative; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--color-primary); }
.faq-icon::before { top: 8px; left: 0; width: 18px; height: 2px; }
.faq-icon::after { top: 0; left: 8px; width: 2px; height: 18px; transition: transform .2s ease; }
.faq-item[open] .faq-icon::after { transform: rotate(90deg); }
.faq-item p { margin-top: 12px; color: var(--color-text-soft); }

/* CTA */
.section-cta { position: relative; padding: 100px 0; color: #fff; text-align: center; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background: linear-gradient(135deg, var(--color-primary), var(--color-bg-dark)); }
.cta-wrap { position: relative; max-width: 640px; margin: 0 auto; }
.cta-tag { display: inline-block; padding: 6px 14px; background: rgba(245,158,11,0.18); color: var(--color-accent); border-radius: 100px; font-size: 0.8rem; font-weight: 600; margin-bottom: 18px; }
.cta-wrap h2 { font-size: clamp(2rem, 4.5vw, 2.8rem); color: #fff; margin-bottom: 14px; }
.cta-wrap p { color: rgba(255,255,255,0.85); font-size: 1.05rem; margin-bottom: 28px; }
.cta-form { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 540px) { .cta-form { grid-template-columns: 1fr; } }
.cta-form input { padding: 14px 18px; border: 1px solid rgba(255,255,255,0.3); border-radius: 8px; background: rgba(255,255,255,0.12); color: #fff; font-size: 0.95rem; outline: none; backdrop-filter: blur(6px); }
.cta-form input::placeholder { color: rgba(255,255,255,0.7); }
.cta-form input:focus { border-color: var(--color-accent); background: rgba(255,255,255,0.18); }
.cta-form button { grid-column: 1 / -1; }
.cta-form .form-status { grid-column: 1 / -1; }
.form-status { margin-top: 8px; font-size: 0.86rem; min-height: 20px; }
.form-status.success { color: var(--color-accent); }
.form-status.error { color: #fca5a5; }

/* Contact mini */
.contact-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 880px; margin: 0 auto; }
@media (max-width: 720px) { .contact-mini { grid-template-columns: 1fr; } }
.cm-card { background: #fff; padding: 24px; border-radius: 14px; border: 1px solid var(--color-border); display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; transition: all .2s ease; }
.cm-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.cm-icon { font-size: 1.4rem; margin-bottom: 6px; }
.cm-card strong { color: var(--color-text); font-size: 0.9rem; }
.cm-card span { color: var(--color-text-soft); font-size: 0.86rem; }
.cm-card[href]:hover span { color: var(--color-primary); }

/* Footer */
.site-footer { background: var(--color-bg-dark); color: rgba(255,255,255,0.85); padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 32px; }
@media (max-width: 880px) { .footer-inner { grid-template-columns: 1fr 1fr; gap: 24px; } }
@media (max-width: 540px) { .footer-inner { grid-template-columns: 1fr; } }
.footer-col h4 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; }
.footer-col a, .footer-col span { display: block; color: rgba(255,255,255,0.7); font-size: 0.88rem; padding: 4px 0; }
.footer-col a:hover { color: var(--color-accent); }
.footer-brand p { color: rgba(255,255,255,0.65); font-size: 0.88rem; margin-top: 12px; }
.footer-logo { display: inline-flex; align-items: center; gap: 8px; color: #fff; font-weight: 800; font-size: 1.25rem; font-family: var(--font-title); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 18px 0; }
.copyright { color: rgba(255,255,255,0.6); font-size: 0.82rem; }