/* =============================================
   VENKATA REDDY AI CLASSES — STYLE.CSS
   Apple-Inspired · YouTube-Integrated · 2025
   ============================================= */

:root {
  --yt-red: #ff0000;
  --yt-dark: #cc0000;
  --primary: #0071e3;
  --primary-light: #e8f1fc;
  --text-dark: #1d1d1f;
  --text-mid: #3a3a3c;
  --text-soft: #6e6e73;
  --text-light: #aeaeb2;
  --bg-white: #ffffff;
  --bg-light: #f5f5f7;
  --bg-dark: #1d1d1f;
  --border: #d2d2d7;
  --gradient: linear-gradient(135deg, #0071e3 0%, #00c6fb 100%);
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.07);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.13);
  --radius: 18px;
  --radius-sm: 10px;
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Lora', Georgia, serif;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text-dark); background: var(--bg-white); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: 0.3s var(--ease); }
ul { list-style: none; padding: 0; margin: 0; }
.section-pad { padding: 100px 0; }
.mb-section { margin-bottom: 64px; }

/* Typography */
.section-label { display: inline-block; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--primary); background: var(--primary-light); padding: 6px 16px; border-radius: 50px; margin-bottom: 16px; }
.section-title { font-size: clamp(1.9rem, 3.5vw, 2.8rem); font-weight: 800; color: var(--text-dark); line-height: 1.18; letter-spacing: -0.03em; margin-bottom: 16px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-soft); max-width: 540px; margin: 0 auto; }
.section-body { font-size: 1rem; color: var(--text-mid); line-height: 1.85; margin-bottom: 16px; }
.gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Scroll Reveal */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-light); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }
::selection { background: rgba(0,113,227,0.15); }

/* =========== BUTTONS =========== */
.btn-yt-main { background: var(--yt-red); color: #fff; font-weight: 700; font-size: 0.95rem; padding: 13px 28px; border-radius: 50px; border: none; display: inline-flex; align-items: center; transition: 0.3s var(--ease); box-shadow: 0 4px 18px rgba(255,0,0,0.28); }
.btn-yt-main:hover { background: var(--yt-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,0,0,0.38); }
.btn-yt-nav { background: var(--yt-red); color: #fff !important; font-weight: 700; font-size: 0.88rem; padding: 9px 22px; border-radius: 50px; border: none; transition: 0.3s var(--ease); }
.btn-yt-nav:hover { background: var(--yt-dark); transform: translateY(-1px); }
.btn-yt-white { background: #fff; color: var(--yt-dark); font-weight: 700; font-size: 0.95rem; padding: 13px 28px; border-radius: 50px; border: none; display: inline-flex; align-items: center; transition: 0.3s var(--ease); box-shadow: 0 4px 18px rgba(0,0,0,0.12); }
.btn-yt-white:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.18); }
.btn-outline-hero { background: transparent; color: var(--text-dark); font-weight: 700; font-size: 0.95rem; padding: 13px 28px; border-radius: 50px; border: 2px solid var(--border); display: inline-flex; align-items: center; transition: 0.3s var(--ease); }
.btn-outline-hero:hover { border-color: var(--text-dark); transform: translateY(-2px); }
.btn-ghost-main { background: transparent; color: var(--primary); font-weight: 700; font-size: 0.95rem; padding: 13px 28px; border-radius: 50px; border: 2px solid var(--primary); display: inline-flex; align-items: center; transition: 0.3s var(--ease); }
.btn-ghost-main:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-cta-ghost { background: transparent; color: rgba(255,255,255,0.9); font-weight: 700; font-size: 0.95rem; padding: 13px 28px; border-radius: 50px; border: 2px solid rgba(255,255,255,0.4); display: inline-flex; align-items: center; transition: 0.3s var(--ease); }
.btn-cta-ghost:hover { border-color: #fff; color: #fff; }
.btn-google-rev { background: #fff; color: var(--text-dark); font-weight: 700; font-size: 0.93rem; padding: 12px 26px; border-radius: 50px; border: 2px solid var(--border); display: inline-flex; align-items: center; transition: 0.3s var(--ease); box-shadow: var(--shadow-sm); }
.btn-google-rev:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* =========== NAVBAR =========== */
#mainNav { background: rgba(255,255,255,0.88); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(0,0,0,0.07); padding: 12px 0; transition: 0.3s var(--ease); z-index: 1000; }
#mainNav.scrolled { padding: 8px 0; box-shadow: 0 2px 20px rgba(0,0,0,0.09); }
.navbar-brand { display: flex; align-items: center; gap: 10px; }
.navbar-brand img { border-radius: 8px; object-fit: contain; }
.brand-text-wrap { display: flex; flex-direction: column; }
.brand-name { font-size: 1rem; font-weight: 800; color: var(--text-dark); letter-spacing: -0.02em; line-height: 1.2; }
.brand-name em { font-style: normal; color: var(--yt-red); }
.brand-sub { font-size: 0.68rem; color: var(--text-soft); font-weight: 500; letter-spacing: 0.04em; }
.navbar-nav .nav-link { font-weight: 600; font-size: 0.9rem; color: var(--text-mid); padding: 8px 14px; border-radius: 8px; transition: 0.3s var(--ease); }
.navbar-nav .nav-link:hover, .navbar-nav .nav-link.active { color: var(--primary); background: var(--primary-light); }
.navbar-toggler { border: none; background: none; padding: 6px; display: flex; flex-direction: column; gap: 5px; box-shadow: none !important; outline: none !important; }
.toggler-icon { display: block; width: 22px; height: 2px; background: var(--text-dark); border-radius: 2px; transition: 0.3s var(--ease); }

/* =========== HERO =========== */
.hero-section { position: relative; background: linear-gradient(155deg, #f5f5f7 0%, #fff 55%, #e8f1fc 100%); overflow: hidden; }
.hero-blobs { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.blob { position: absolute; border-radius: 50%; opacity: 0.2; filter: blur(80px); }
.b1 { width: 500px; height: 500px; background: radial-gradient(circle, #0071e3, transparent); top: -150px; right: -100px; }
.b2 { width: 350px; height: 350px; background: radial-gradient(circle, #ff0000, transparent); bottom: -50px; left: -80px; }
.b3 { width: 280px; height: 280px; background: radial-gradient(circle, #00c6fb, transparent); top: 40%; left: 25%; }
.container { position: relative; z-index: 1; }

.hero-eyebrow { display: inline-flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--border); border-radius: 50px; padding: 8px 16px; font-size: 0.82rem; font-weight: 600; color: var(--text-mid); margin-bottom: 22px; box-shadow: var(--shadow-sm); }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--yt-red); display: inline-block; animation: pulse-dot 1.5s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.6; transform: scale(1.3); } }

.hero-h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.04em; margin-bottom: 22px; }
.hero-para { font-size: 1.1rem; color: var(--text-soft); max-width: 520px; line-height: 1.8; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-trust { display: flex; gap: 10px; flex-wrap: wrap; }
.ht-pill { display: inline-flex; align-items: center; gap: 7px; background: var(--bg-light); border: 1px solid var(--border); border-radius: 50px; padding: 7px 14px; font-size: 0.8rem; font-weight: 600; color: var(--text-mid); }
.ht-pill i { color: var(--yt-red); }

/* YouTube Preview Card */
.hero-yt-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); border: 1px solid var(--border); overflow: hidden; animation: float-card 5s ease-in-out infinite; }
@keyframes float-card { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.hyc-bar { background: var(--bg-light); padding: 10px 16px; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--border); }
.hyc-dots { display: flex; gap: 5px; }
.hyc-dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.hyc-dots span:nth-child(1) { background: #ff5f57; }
.hyc-dots span:nth-child(2) { background: #febc2e; }
.hyc-dots span:nth-child(3) { background: #28c840; }
.hyc-title { font-size: 0.78rem; color: var(--text-soft); font-weight: 500; flex: 1; text-align: center; }
.hyc-channel { display: flex; align-items: center; gap: 12px; padding: 16px; border-bottom: 1px solid var(--border); }
.hyc-logo { border-radius: 50%; object-fit: contain; }
.hyc-info { flex: 1; }
.hyc-info strong { display: block; font-size: 0.92rem; font-weight: 700; color: var(--text-dark); }
.hyc-info span { font-size: 0.76rem; color: var(--text-soft); }
.hyc-sub { background: var(--yt-red); color: #fff; font-weight: 700; font-size: 0.8rem; padding: 7px 14px; border-radius: 4px; white-space: nowrap; transition: 0.3s; }
.hyc-sub:hover { background: var(--yt-dark); color: #fff; }
.hyc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; }
.hyc-thumb { height: 90px; border-radius: 6px; overflow: hidden; position: relative; display: flex; align-items: flex-end; cursor: pointer; transition: 0.3s var(--ease); }
.hyc-thumb:hover { transform: scale(1.04); }
.t-python { background: linear-gradient(135deg, #3776ab, #00c6fb); }
.t-ml { background: linear-gradient(135deg, #ff6b35, #f7c948); }
.t-genai { background: linear-gradient(135deg, #9b59b6, #e91e8c); }
.t-powerbi { background: linear-gradient(135deg, #f2c811, #e97627); }
.hyt-label { padding: 8px; font-size: 0.72rem; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 5px; background: linear-gradient(to top, rgba(0,0,0,0.6), transparent); width: 100%; }
.hyc-viewall { display: flex; align-items: center; justify-content: center; padding: 14px; font-size: 0.88rem; font-weight: 700; color: var(--primary); border-top: 1px solid var(--border); transition: 0.3s; gap: 6px; }
.hyc-viewall:hover { background: var(--primary-light); color: var(--primary); }

/* =========== STATS BAR =========== */
.stats-bar { background: var(--bg-dark); padding: 36px 0; }
.sb-row { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; }
.sb-item { text-align: center; }
.sb-n { display: block; font-size: 2rem; font-weight: 900; color: #fff; letter-spacing: -0.04em; }
.sb-l { display: block; font-size: 0.72rem; color: rgba(255,255,255,0.5); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.sb-div { width: 1px; height: 44px; background: rgba(255,255,255,0.12); }

/* =========== ABOUT =========== */
.about-section { background: var(--bg-white); }
.about-card { background: var(--bg-light); border-radius: var(--radius); padding: 30px; border: 1px solid var(--border); }
.ac-top { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.ac-logo { width: 56px; height: 56px; border-radius: 12px; object-fit: contain; background: #fff; }
.ac-top strong { display: block; font-size: 1rem; font-weight: 800; color: var(--text-dark); }
.ac-top span { font-size: 0.82rem; color: var(--text-soft); }
.ac-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.ac-tags span { background: #fff; border: 1px solid var(--border); border-radius: 50px; padding: 5px 12px; font-size: 0.78rem; font-weight: 600; color: var(--text-mid); transition: 0.3s; }
.ac-tags span:hover { background: var(--yt-red); color: #fff; border-color: var(--yt-red); }
.ac-url { display: flex; align-items: center; font-size: 0.88rem; font-weight: 600; color: var(--text-mid); border-top: 1px solid var(--border); padding-top: 16px; }
.ac-url:hover { color: var(--yt-red); }
.about-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 24px; }
.ac-item { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: 600; color: var(--text-mid); }
.ac-item i { color: var(--primary); }

/* =========== COURSES =========== */
.courses-section { background: var(--bg-light); }
.course-filter-wrap { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.cf-tab { background: #fff; color: var(--text-mid); font-weight: 700; font-size: 0.88rem; padding: 9px 22px; border-radius: 50px; border: 1.5px solid var(--border); cursor: pointer; transition: 0.3s var(--ease); }
.cf-tab.active, .cf-tab:hover { background: var(--text-dark); color: #fff; border-color: var(--text-dark); }
.ccard-link { display: block; text-decoration: none; color: inherit; height: 100%; }
.course-card { background: #fff; border-radius: var(--radius); padding: 28px 24px; height: 100%; border: 1px solid var(--border); transition: 0.35s var(--ease); display: flex; flex-direction: column; position: relative; overflow: hidden; cursor: pointer; }
.course-card::after { content: ''; position: absolute; inset: 0; border-radius: var(--radius); border: 2px solid var(--yt-red); opacity: 0; transition: 0.3s; }
.ccard-link:hover .course-card { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.ccard-link:hover .course-card::after { opacity: 1; }
.cc-featured { border: 2px solid var(--primary); box-shadow: 0 4px 24px rgba(0,113,227,0.12); }
.cc-popular { background: linear-gradient(135deg, #ff6b35, #f7c948); color: #fff; font-size: 0.72rem; font-weight: 800; padding: 5px 12px; border-radius: 50px; display: inline-block; margin-bottom: 16px; letter-spacing: 0.04em; }
.cc-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.cc-ico { width: 50px; height: 50px; border-radius: 12px; background: color-mix(in srgb, var(--cibg) 100%, transparent); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--ci); transition: 0.3s; }
.ccard-link:hover .cc-ico { background: var(--ci); color: #fff; }
.cc-badges { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.cc-cat-badge { font-size: 0.7rem; font-weight: 700; color: var(--text-soft); background: var(--bg-light); padding: 3px 10px; border-radius: 50px; }
.cc-cat-badge.trending { background: #fff0eb; color: #e97627; }
.cc-cat-badge.cutting { background: #e0f7fc; color: #00838f; }
.cc-free-badge { font-size: 0.68rem; font-weight: 700; color: var(--yt-red); background: #fff0f0; padding: 3px 10px; border-radius: 50px; }
.cc-title { font-size: 1.1rem; font-weight: 800; color: var(--text-dark); margin-bottom: 8px; }
.cc-desc { font-size: 0.86rem; color: var(--text-soft); line-height: 1.75; margin-bottom: 14px; flex: 1; }
.cc-list { margin-bottom: 20px; }
.cc-list li { font-size: 0.82rem; color: var(--text-mid); padding: 4px 0; display: flex; align-items: center; gap: 8px; }
.cc-list i { color: var(--yt-red); font-size: 0.75rem; }
.cc-cta { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 700; color: var(--text-mid); border-top: 1px solid var(--border); padding-top: 14px; transition: 0.3s; }
.ccard-link:hover .cc-cta { color: var(--yt-red); }
.cc-cta .fa-arrow-right { margin-left: auto; transition: 0.3s; }
.ccard-link:hover .cc-cta .fa-arrow-right { transform: translateX(4px); }
.cc-viewall { background: linear-gradient(135deg, var(--text-dark), #3a3a3c); border-color: transparent; display: flex; align-items: center; justify-content: center; }
.cva-inner { text-align: center; }
.cva-inner .fab.fa-youtube { font-size: 3rem; color: var(--yt-red); margin-bottom: 16px; }
.cva-inner h3 { font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 8px; }
.cva-inner p { font-size: 0.88rem; color: rgba(255,255,255,0.6); line-height: 1.6; }
.citem.hide { display: none; }

/* =========== INSTRUCTOR =========== */
.instructor-section { background: var(--bg-light); }
.inst-card { background: #fff; border-radius: 24px; padding: 52px 44px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.inst-avatar-wrap { position: relative; width: 240px; height: 240px; margin: 0 auto 20px; }
.inst-avatar { width: 240px; height: 240px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-size: 2rem; font-weight: 900; color: #fff; letter-spacing: -0.05em; }
.avatar-img {     width: 230px;    height: 230px;     border-radius: 50%;     object-fit: cover; }
.inst-ring { position: absolute; inset: -6px; border-radius: 50%; border: 2px dashed rgba(0,113,227,0.3); animation: spin-ring 12s linear infinite; }
@keyframes spin-ring { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.inst-name { font-size: 1.35rem; font-weight: 800; margin-bottom: 4px; }
.inst-role { color: var(--text-soft); font-size: 0.9rem; margin-bottom: 8px; }
.inst-edu { font-size: 0.84rem; color: var(--text-mid); line-height: 1.7; }
.inst-socials { display: flex; justify-content: center; gap: 10px; margin-top: 16px; }
.inst-socials a { width: 36px; height: 36px; border-radius: 50%; border: 1.5px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-soft); font-size: 0.9rem; transition: 0.3s; }
.inst-socials a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.is-yt:hover { background: var(--yt-red) !important; border-color: var(--yt-red) !important; }
.inst-bio p { font-size: 0.97rem; color: var(--text-mid); line-height: 1.85; margin-bottom: 14px; }
.inst-books { margin: 20px 0; }
.ib-row { display: flex; align-items: center; gap: 12px; background: var(--bg-light); border-radius: var(--radius-sm); padding: 12px 16px; margin-bottom: 8px; }
.ib-row i { font-size: 1.2rem; color: var(--primary); }
.ib-row strong { display: block; font-size: 0.88rem; font-weight: 700; color: var(--text-dark); }
.ib-row span { font-size: 0.76rem; color: var(--text-soft); }
.inst-stats { display: flex; gap: 20px; flex-wrap: wrap; padding-top: 20px; border-top: 1px solid var(--border); }
.is-kpi { text-align: center; }
.is-kpi strong { display: block; font-size: 1.6rem; font-weight: 900; color: var(--yt-red); letter-spacing: -0.04em; }
.is-kpi span { font-size: 0.72rem; color: var(--text-soft); font-weight: 600; }

/* =========== WHY US =========== */
.why-section { background: var(--bg-white); }
.why-card { background: #fff; border-radius: var(--radius); padding: 32px 26px; height: 100%; border: 1px solid var(--border); transition: 0.35s var(--ease); position: relative; overflow: hidden; }
.why-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--yt-red), #ff6b35); transform: scaleX(0); transform-origin: left; transition: 0.35s; }
.why-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.why-card:hover::before { transform: scaleX(1); }
.wc-icon { width: 54px; height: 54px; background: #fff0f0; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--yt-red); margin-bottom: 18px; transition: 0.3s; }
.why-card:hover .wc-icon { background: var(--yt-red); color: #fff; }
.why-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 10px; }
.why-card p { font-size: 0.9rem; color: var(--text-soft); line-height: 1.75; margin: 0; }

/* =========== TESTIMONIALS =========== */
.testi-section { background: var(--bg-light); }
.testi-card { background: #fff; border-radius: var(--radius); padding: 28px; border: 1px solid var(--border); height: 100%; transition: 0.3s; }
.testi-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.testi-feat { background: var(--gradient); border-color: transparent; }
.tc-stars { font-size: 1.1rem; color: #f7c948; margin-bottom: 14px; letter-spacing: 2px; }
.testi-feat .tc-stars { color: rgba(255,255,255,0.9); }
.tc-text { font-size: 0.95rem; line-height: 1.8; color: var(--text-mid); font-style: italic; margin-bottom: 20px; font-family: var(--font-serif); }
.testi-feat .tc-text { color: rgba(255,255,255,0.92); }
.tc-author { display: flex; align-items: center; gap: 12px; }
.tca-av { width: 42px; height: 42px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.78rem; color: #fff; flex-shrink: 0; }
.testi-feat .tca-av { background: rgba(255,255,255,0.25); }
.tc-author strong { display: block; font-size: 0.92rem; font-weight: 700; }
.testi-feat .tc-author strong { color: #fff; }
.tc-author span { font-size: 0.78rem; color: var(--text-soft); }
.testi-feat .tc-author span { color: rgba(255,255,255,0.7); }

/* =========== CTA BANNER =========== */
.cta-banner { background: linear-gradient(135deg, #1d1d1f 0%, #2d2d2f 100%); padding: 80px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 900; color: #fff; letter-spacing: -0.03em; margin-bottom: 8px; }
.cta-p { color: rgba(255,255,255,0.6); font-size: 1rem; margin: 0; }
.cta-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* =========== CONTACT =========== */
.contact-section { background: var(--bg-white); }
.ci-stack { display: flex; flex-direction: column; gap: 20px; }
.ci-row { display: flex; align-items: flex-start; gap: 16px; background: var(--bg-light); border-radius: var(--radius-sm); padding: 16px; border: 1px solid var(--border); }
.ci-ico { width: 44px; height: 44px; background: var(--primary-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1rem; flex-shrink: 0; }
.ci-ico.yt { background: #fff0f0; color: var(--yt-red); }
.ci-row strong { display: block; font-size: 0.85rem; font-weight: 700; color: var(--text-dark); margin-bottom: 3px; }
.ci-row a { font-size: 0.88rem; color: var(--primary); font-weight: 600; display: block; transition: 0.3s; }
.ci-row a:hover { color: var(--yt-red); }
.ci-row span { font-size: 0.85rem; color: var(--text-soft); line-height: 1.6; }
.contact-form { background: var(--bg-light); border-radius: var(--radius); padding: 36px; border: 1px solid var(--border); }
.form-label { font-size: 0.84rem; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.cf-input { border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; font-size: 0.93rem; font-family: var(--font); color: var(--text-dark); transition: 0.3s; background: #fff; }
.cf-input:focus { outline: none; border-color: var(--yt-red); box-shadow: 0 0 0 3px rgba(255,0,0,0.10); }
.cf-input::placeholder { color: var(--text-light); }
.form-success { background: #e6f9ee; color: #27ae60; border-radius: var(--radius-sm); padding: 14px 16px; font-weight: 600; font-size: 0.9rem; margin-top: 12px; display: flex; align-items: center; }

/* =========== FOOTER =========== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 80px 0 0; }
.footer-top { padding-bottom: 56px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand img { border-radius: 8px; object-fit: contain; }
.fb-main { display: block; font-size: 1.15rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; }
.fb-main em { font-style: normal; color: var(--yt-red); }
.fb-sub { display: block; font-size: 0.7rem; color: rgba(255,255,255,0.4); font-weight: 500; }
.footer-desc { font-size: 0.88rem; line-height: 1.8; margin-bottom: 20px; max-width: 290px; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.15); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-size: 0.85rem; transition: 0.3s; }
.footer-socials a:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.fs-yt:hover { background: var(--yt-red) !important; border-color: var(--yt-red) !important; }
.footer-heading { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 0.86rem; color: rgba(255,255,255,0.55); transition: 0.3s; }
.footer-links a:hover { color: var(--yt-red); padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; font-size: 0.86rem; }
.footer-contact i { color: var(--primary); margin-top: 3px; width: 14px; flex-shrink: 0; }
.footer-contact a { color: rgba(255,255,255,0.55); transition: 0.3s; }
.footer-contact a:hover { color: var(--yt-red); }
.footer-contact span { color: rgba(255,255,255,0.45); line-height: 1.6; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 0.8rem; color: rgba(255,255,255,0.35); }

/* =========== FLOATING BUTTONS =========== */
.back-to-top { position: fixed; bottom: 100px; right: 28px; width: 44px; height: 44px; border-radius: 50%; background: var(--gradient); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,113,227,0.35); opacity: 0; pointer-events: none; transition: 0.3s var(--ease); z-index: 999; font-size: 0.9rem; }
.back-to-top.show { opacity: 1; pointer-events: all; }
.back-to-top:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,113,227,0.45); }
.whatsapp-float { position: fixed; bottom: 28px; right: 28px; width: 52px; height: 52px; border-radius: 50%; background: #25d366; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; box-shadow: 0 4px 20px rgba(37,211,102,0.45); z-index: 999; transition: 0.3s var(--ease); animation: wa-bounce 3s ease-in-out infinite; }
.whatsapp-float:hover { transform: scale(1.1); color: #fff; box-shadow: 0 6px 26px rgba(37,211,102,0.6); animation: none; }
@keyframes wa-bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* =========== RESPONSIVE =========== */
@media (max-width: 991px) {
  .section-pad { padding: 70px 0; }
  .hero-section .min-vh-100 { min-height: unset; padding: 100px 0 60px; }
  .inst-card { padding: 36px 24px; }
  .about-checks { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-btns { justify-content: center; }
}
@media (max-width: 767px) {
  .section-pad { padding: 54px 0; }
  .mb-section { margin-bottom: 40px; }
  .hero-btns { flex-direction: column; }
  .hero-btns a { width: 100%; justify-content: center; }
  .sb-row { gap: 14px; }
  .sb-div { display: none; }
  .inst-stats { justify-content: center; }
  .contact-form { padding: 24px 18px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-yt-card { margin-top: 20px; }
}
@media (max-width: 480px) {
  .section-title { font-size: 1.7rem; }
  .hero-h1 { font-size: 2rem; }
  .hyc-grid { grid-template-columns: 1fr 1fr; }
  .hyc-thumb { height: 70px; }
}