:root {
    --teal: #00808b;
    --light-teal: #b3d9d9;
    --white: #ffffff;
    --dark: #2d3436;
    --bg-gray: #f4f7f7;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Nunito Sans', sans-serif; color: var(--dark); line-height: 1.6; overflow-x: hidden; scroll-behavior: smooth; }

/* --- Hero --- */
.hero { height: 100vh; display: flex; align-items: center; justify-content: center; position: relative; color: var(--white); text-align: center; padding: 0 20px; }
.video-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.4); z-index: -1; }
.hero-content { max-width: 900px; }
h1 { font-size: clamp(2.5rem, 6vw, 4rem); margin: 20px 0; line-height: 1.1; }

/* --- Defined Stats Bar --- */
.stats-container { background: #fff; padding: 40px 20px; margin-top: -50px; position: relative; z-index: 10; }
.stats-bar { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.stat-item { background: var(--bg-gray); padding: 30px; border-radius: 12px; text-align: center; border-bottom: 4px solid var(--light-teal); }
.stat-icon { font-size: 1.5rem; margin-bottom: 10px; }

/* --- Tightened Arch Section --- */
.about-section { padding: 40px 20px; background: #fff; display: flex; justify-content: center; }
.arch-wrapper { position: relative; width: 100%; max-width: 650px; display: flex; flex-direction: column; align-items: center; }
.teal-arch { position: absolute; top: 0; width: 100%; height: 100%; background-color: var(--light-teal); border-radius: 350px 350px 0 0; z-index: 1; }
.student-img { width: 75%; max-width: 380px; border-radius: 20px; z-index: 2; margin-top: 30px; box-shadow: 0 15px 30px rgba(0,0,0,0.1); }
.arch-content { z-index: 3; text-align: center; margin-top: 25px; max-width: 500px; padding-bottom: 40px; }

/* --- Bigger Features Header --- */
.features { padding: 80px 10%; text-align: center; background: #fff; }
.section-title { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.2; margin-bottom: 60px; }
.section-title span { font-style: italic; font-weight: 300; color: var(--teal); }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.feature-card { padding: 50px 30px; background: var(--bg-gray); border-radius: 20px; text-align: left; }
.highlight-card { background: var(--teal); color: white; }

/* --- Pricing Calculator --- */
.calc-section { padding: 100px 10%; background: var(--bg-gray); }
.calc-container { max-width: 1000px; margin: 0 auto; background: white; padding: 60px; border-radius: 30px; box-shadow: 0 20px 60px rgba(0,0,0,0.05); }
.calc-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 50px; margin-top: 40px; }
.radio-group { margin: 20px 0 40px; }
.radio-option { display: block; padding: 15px; border: 2px solid #eee; border-radius: 10px; margin-bottom: 10px; cursor: pointer; }
.radio-option input { margin-right: 10px; accent-color: var(--teal); }
input[type="range"] { width: 100%; accent-color: var(--teal); margin: 20px 0 10px; }
.range-labels { display: flex; justify-content: space-between; font-size: 12px; color: #999; }
.result-box { background: #fdfdfd; border: 2px dashed var(--light-teal); padding: 40px; border-radius: 20px; text-align: center; }
.result-box h3 { font-size: 3rem; color: var(--teal); margin: 10px 0; }
.blik-indicator { margin-top: 15px; font-size: 0.8rem; color: #777; border-top: 1px solid #eee; padding-top: 10px; }

/* --- Buttons --- */
.btn { display: inline-block; padding: 16px 32px; text-decoration: none; font-weight: bold; border-radius: 6px; transition: 0.3s; margin: 10px; border: none; cursor: pointer; text-align: center; }
.btn-teal { background: var(--teal); color: var(--white); }
.btn-outline { border: 2px solid var(--white); color: var(--white); }
.btn-white { background: var(--white); color: var(--teal); }

/* --- Footer --- */
.main-footer { background: #2c3e50; color: white; padding: 80px 10% 40px; }
.footer-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 40px; }
.footer-bottom { border-top: 1px solid #3e4f5f; margin-top: 50px; padding-top: 20px; text-align: center; font-size: 12px; opacity: 0.6; }

@media (max-width: 900px) {
    .calc-grid { grid-template-columns: 1fr; }
    .calc-container { padding: 30px; }
}

/* --- Booking Page v2 Styles (Fixed Box) --- */
.booking-page { background: var(--bg-gray); }
.form-section { padding: 60px 10%; display: flex; justify-content: center; }
.form-container { 
    width: 100%; max-width: 800px; background: #fff; padding: 50px; 
    border-radius: 25px; box-shadow: 0 15px 45px rgba(0,0,0,0.08); 
}
.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.input-group { display: flex; flex-direction: column; text-align: left; }
.input-group label { font-weight: bold; font-size: 0.85rem; margin-bottom: 5px; }
.input-group input, .input-group select, .input-group textarea { padding: 12px; border: 1px solid #ddd; border-radius: 8px; }
.full-width { grid-column: span 2; }
.btn-dark-form { background: #2c3e50; color: white; width: 100%; max-width: 300px; margin: 20px auto; display: block; }

.teacher-section-v2 { padding: 100px 10%; background: #fff; }
.profile-container-v2 {
    max-width: 1000px; margin: 0 auto; display: flex; align-items: center; gap: 60px;
}
.teacher-img-large {
    width: 100%; max-width: 450px; border-radius: 20px; box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}
.profile-info-v2 { flex: 1; text-align: left; }
.profile-tag { color: var(--teal); font-weight: bold; font-size: 14px; letter-spacing: 2px; }
.profile-info-v2 h3 { font-size: 3rem; margin: 10px 0; color: var(--teal); }
.profile-link-v2 { display: inline-block; margin-top: 30px; color: var(--teal); font-weight: bold; text-decoration: none; border-bottom: 2px solid var(--light-teal); }

/* --- Full Profile Page (The Side-by-Side Video Layout) --- */
.profile-page { background: var(--bg-gray); }
.full-profile-section { max-width: 1100px; margin: 50px auto; padding: 60px; background: #fff; border-radius: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.profile-main-name { font-size: 3.5rem; color: var(--teal); margin-bottom: 30px; }
.intro-media-container { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.full-view-img { width: 100%; border-radius: 20px; }
.profile-video-box { background: #000; border-radius: 20px; overflow: hidden; display: flex; align-items: center; }
.intro-video { width: 100%; height: auto; }

@media (max-width: 900px) {
    .profile-container-v2, .intro-media-container, .input-row { grid-template-columns: 1fr; }
    .full-width { grid-column: span 1; }
}