/* ==========================================================
   Dental Clinic CMS - Main Stylesheet
   Mobile-first, responsive up to large TV screens
   ========================================================== */

:root {
    --color-primary: #0e8f8b;
    --color-primary-dark: #076763;
    --color-accent: #ff7a59;
    --color-dark: #12292b;
    --color-text: #4a5a5c;
    --color-light-bg: #f4f9f9;
    --color-white: #ffffff;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --container-width: 1180px;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(18, 41, 43, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.65;
    background: var(--color-white);
    overflow-x: hidden;
}

img { max-width: 100%; display: block; height: auto; }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    line-height: 1.25;
    font-weight: 700;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

section { padding: 60px 0; }

.section-tag {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 13px;
    margin-bottom: 8px;
}

.section-head { text-align: center; max-width: 700px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(26px, 4vw, 40px); }

.btn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    border: none;
    transition: all .25s ease;
    font-size: 15px;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); }
.btn-outline { background: transparent; border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.hide-mobile { display: none; }

/* ---------------- Header ---------------- */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,.97);
    box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 74px;
}
.logo img { height: 42px; }
.logo-text { font-family: var(--font-heading); font-weight: 800; font-size: 20px; color: var(--color-primary); }

.main-nav {
    position: fixed; top: 74px; left: 0; right: 0; bottom: 0;
    background: #fff;
    transform: translateX(-100%);
    transition: transform .3s ease;
    padding: 20px;
    overflow-y: auto;
}
.main-nav.open { transform: translateX(0); }
.main-nav ul { display: flex; flex-direction: column; gap: 4px; }
.main-nav a {
    display: block; padding: 14px 10px; font-weight: 500; color: var(--color-dark);
    border-bottom: 1px solid #eee;
}
.main-nav a.active, .main-nav a:hover { color: var(--color-primary); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.hamburger {
    width: 40px; height: 40px; background: none; border: none; cursor: pointer;
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.hamburger span { width: 24px; height: 2px; background: var(--color-dark); transition: .25s; }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
    background: linear-gradient(120deg, var(--color-light-bg) 55%, #fff 55%);
    padding: 50px 0;
}
.hero .container { display: grid; grid-template-columns: 1fr; gap: 30px; align-items: center; }
.hero h1 { font-size: clamp(30px, 5.5vw, 52px); margin-bottom: 18px; }
.hero p { margin-bottom: 26px; max-width: 560px; }
.hero-img img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* ---------------- Info strip (phone / hours) ---------------- */
.info-strip {
    background: var(--color-primary);
    color: #fff;
}
.info-strip .container {
    display: grid; grid-template-columns: 1fr; gap: 20px; padding-top: 30px; padding-bottom: 30px;
}
.info-item { display: flex; align-items: center; gap: 14px; }
.info-item .ic { width: 46px; height: 46px; background: rgba(255,255,255,.15); border-radius: 50%; display:flex; align-items:center; justify-content:center; font-size: 20px; flex-shrink:0; }
.info-item h4 { color: #fff; font-size: 15px; text-transform: uppercase; letter-spacing: .5px; }
.info-item p { color: #eafffe; margin: 0; }
.info-item a { color: #fff; font-weight: 700; }

/* ---------------- About ---------------- */
.about-grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
.about-images { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-images img { border-radius: var(--radius); box-shadow: var(--shadow); }
.about-images img:first-child { margin-top: 30px; }
.about-text ul.checklist { margin-top: 20px; }
.about-text ul.checklist li { padding-left: 28px; position: relative; margin-bottom: 14px; }
.about-text ul.checklist li::before {
    content: "✓"; position: absolute; left: 0; top: 0;
    color: var(--color-primary); font-weight: 800;
}

/* ---------------- Services ---------------- */
.services-grid {
    display: grid; grid-template-columns: 1fr; gap: 24px;
}
.service-card {
    background: var(--color-light-bg); border-radius: var(--radius); padding: 34px 26px;
    transition: transform .25s ease, box-shadow .25s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); background: #fff; }
.service-card .icon { width: 56px; height: 56px; margin-bottom: 18px; }
.service-card h3 { font-size: 20px; margin-bottom: 10px; }
.service-card a { color: var(--color-primary); font-weight: 600; display: inline-block; margin-top: 12px; }

/* ---------------- Stats ---------------- */
.stats-band { background: var(--color-dark); color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; text-align: center; }
.stat-item .num { font-family: var(--font-heading); font-size: clamp(30px,5vw,46px); font-weight: 800; color: var(--color-accent); }
.stat-item .label { color: #cfe7e6; margin-top: 6px; text-transform: uppercase; font-size: 13px; letter-spacing: 1px; }

/* ---------------- Why choose us ---------------- */
.why-us-grid { display: grid; grid-template-columns: 1fr; gap: 30px; align-items: center; }
.why-us-list { display: grid; grid-template-columns: 1fr; gap: 22px; }
.why-item { display: flex; gap: 16px; }
.why-item .ic { width: 50px; height: 50px; background: var(--color-light-bg); border-radius: 12px; flex-shrink: 0; display:flex; align-items:center; justify-content:center; }
.why-item h4 { margin-bottom: 6px; font-size: 18px; }
.why-us-img img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* ---------------- Team ---------------- */
.team-grid { display: grid; grid-template-columns: 1fr; gap: 26px; }
.team-card { text-align: center; }
.team-card .photo { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); margin-bottom: 16px; aspect-ratio: 3/4; }
.team-card .photo img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 18px; }
.team-card .desig { color: var(--color-primary); font-weight: 600; font-size: 14px; }

/* ---------------- Testimonials ---------------- */
.testimonial-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.testimonial-card {
    background: var(--color-light-bg); padding: 30px; border-radius: var(--radius); position: relative;
}
.testimonial-card .quote { font-size: 32px; color: var(--color-primary); opacity: .3; margin-bottom: 10px; }
.testimonial-card .stars { color: #ffb400; margin-bottom: 10px; }
.testimonial-card h4 { margin-top: 14px; font-size: 16px; }
.testimonial-card .role { font-size: 13px; color: var(--color-primary); }

/* ---------------- CTA ---------------- */
.cta-band {
    background: linear-gradient(120deg, var(--color-primary), var(--color-primary-dark));
    color: #fff; text-align: center; border-radius: var(--radius);
    margin: 0 20px; padding: 50px 24px;
}
.cta-band h2 { color: #fff; margin-bottom: 14px; }
.cta-band .btn-outline { border-color: #fff; color: #fff; }
.cta-band .btn-outline:hover { background: #fff; color: var(--color-primary); }

/* ---------------- Contact / Appointment forms ---------------- */
.form-card {
    background: var(--color-light-bg); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; color: var(--color-dark); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 13px 16px; border-radius: 10px; border: 1px solid #dbe6e6;
    font-family: var(--font-body); font-size: 15px; background: #fff;
}
.form-group textarea { resize: vertical; min-height: 110px; }
.alert { padding: 14px 18px; border-radius: 10px; margin-bottom: 20px; font-weight: 500; }
.alert-success { background: #e2f7ee; color: #106e46; }
.alert-error { background: #fde8e8; color: #a3231d; }

.contact-info-grid { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: 30px; }
.contact-info-card { background: #fff; box-shadow: var(--shadow); border-radius: var(--radius); padding: 24px; text-align: center; }
.contact-info-card .ic { width: 46px; height: 46px; border-radius: 50%; background: var(--color-light-bg); display:flex; align-items:center; justify-content:center; margin: 0 auto 14px; }

/* ---------------- Footer ---------------- */
.site-footer { background: var(--color-dark); color: #cfe0df; }
.footer-top { display: grid; grid-template-columns: 1fr; gap: 34px; padding: 60px 0 40px; }
.footer-col h3, .footer-col h4 { color: #fff; margin-bottom: 16px; }
.footer-col p { color: #a9c2c1; }
.footer-col ul li { margin-bottom: 10px; color: #a9c2c1; }
.footer-col ul li a:hover { color: var(--color-accent); }
.social-links { display: flex; gap: 10px; margin-top: 16px; }
.social-links a {
    width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.08);
    display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff;
}
.footer-map iframe { width: 100%; height: 180px; border: 0; border-radius: var(--radius); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; text-align: center; font-size: 13px; }

.whatsapp-float {
    position: fixed; bottom: 24px; right: 24px; width: 58px; height: 58px; border-radius: 50%;
    background: #25D366; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 18px rgba(0,0,0,.25);
    z-index: 999;
}

/* ==========================================================
   RESPONSIVE BREAKPOINTS
   ========================================================== */

/* Small tablets (≥600px) */
@media (min-width: 600px) {
    .about-images, .stats-grid, .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid, .team-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    .info-strip .container { grid-template-columns: repeat(2, 1fr); }
}

/* Tablets / small laptops (≥768px) */
@media (min-width: 768px) {
    .hide-mobile { display: inline-block; }
    .hamburger { display: none; }
    .main-nav {
        position: static; transform: none; padding: 0; background: transparent; overflow: visible;
    }
    .main-nav ul { flex-direction: row; gap: 30px; }
    .main-nav a { padding: 8px 0; border-bottom: none; position: relative; }
    .main-nav a.active, .main-nav a:hover { color: var(--color-primary); }
}

/* Laptops / desktops (≥1024px) */
@media (min-width: 1024px) {
    :root { --container-width: 1180px; }
    section { padding: 90px 0; }
    .hero .container { grid-template-columns: 1.1fr .9fr; }
    .about-grid { grid-template-columns: .9fr 1.1fr; }
    .why-us-grid { grid-template-columns: 1fr 1fr; }
    .services-grid { grid-template-columns: repeat(4, 1fr); }
    .team-grid { grid-template-columns: repeat(4, 1fr); }
    .testimonial-grid { grid-template-columns: repeat(3, 1fr); }
    .stats-grid { grid-template-columns: repeat(4, 1fr); }
    .contact-info-grid { grid-template-columns: repeat(4, 1fr); }
    .info-strip .container { grid-template-columns: repeat(4, 1fr); }
    .footer-top { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
    .form-row.two-col { grid-template-columns: 1fr 1fr; }
}

/* Large desktops (≥1440px) */
@media (min-width: 1440px) {
    :root { --container-width: 1320px; }
    .hero h1 { font-size: 56px; }
}

/* TV / very large screens (≥1920px) */
@media (min-width: 1920px) {
    :root { --container-width: 1600px; }
    html { font-size: 18px; }
    .hero h1 { font-size: 64px; }
    .section-head h2 { font-size: 46px; }
    .btn { padding: 18px 38px; font-size: 18px; }
}

/* Ultra-wide TV (≥2560px) */
@media (min-width: 2560px) {
    :root { --container-width: 2000px; }
    html { font-size: 22px; }
}