/* ========================================
   AN PHƯƠNG HÚC — V3 PREMIUM REDESIGN
   Bright, Colorful, Trust, Modern 2025
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Roboto+Condensed:wght@300;400;600;700&display=swap');

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

:root {
  /* Core Colors */
  --red: #E63946;
  --navy-deep: #1D3557;
  --navy-light: #457B9D;
  --teal: #2A9D8F;
  --coral: #F4A261;
  --yellow: #E9C46A;
  
  /* Neutral Colors */
  --white: #FFFFFF;
  --warm-gray: #FFF8F0;
  --light-gray: #F8F9FA;
  --border: #E5E7EB;
  --text: #374151;
  --text-light: #6B7280;
  --dark-gray: #1F2937;
  --mid-gray: #9CA3AF;
  
  /* Typography */
  --font: 'Roboto Condensed', sans-serif;
  --font-display: 'Roboto Condensed', sans-serif;
  --shadow-s: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-m: 0 8px 30px rgba(0,0,0,0.06);
  --shadow-l: 0 20px 50px rgba(0,0,0,0.08);
  --shadow-xl: 0 30px 80px rgba(0,0,0,0.1);
  --r-s: 8px;
  --r-m: 14px;
  --r-l: 20px;
  --r-xl: 28px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); line-height: 1.6; background: var(--white); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: all 0.25s var(--ease); }
img { max-width: 100%; display: block; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(42px, 5.5vw, 72px); font-weight: 700; }
h2 { font-size: clamp(32px, 3.5vw, 52px); font-weight: 700; }
h3 { font-size: clamp(20px, 2.2vw, 28px); font-weight: 600; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 96px; display: flex; align-items: center;
  padding: 0 40px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: all 0.4s var(--ease);
}
.navbar.scrolled { height: 72px; box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1400px; margin: 0 auto; }
.nav-brand { display: flex; align-items: center; gap: 0; }
.nav-brand img { height: 72px; transition: all 0.5s var(--ease); animation: logoPulse 3s infinite alternate ease-in-out; }
.navbar.scrolled .nav-brand img { height: 48px; }
.nav-brand:hover img { transform: rotate(180deg) scale(1.1); filter: drop-shadow(0 4px 12px rgba(230,57,70,0.4)); animation-play-state: paused; }
@keyframes logoPulse {
  0% { filter: drop-shadow(0 0 0px rgba(230,57,70,0)); }
  100% { filter: drop-shadow(0 0 16px rgba(230,57,70,0.5)); }
}
.nav-menu { display: flex; gap: 32px; list-style: none; }
.nav-menu a { font-size: 14px; font-weight: 500; color: var(--dark-gray); position: relative; }
.nav-menu a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--red); transition: width 0.3s var(--ease); }
.nav-menu a:hover, .nav-menu a.active { color: var(--text); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-nav { padding: 10px 20px; border-radius: 50px; font-size: 13px; font-weight: 600; font-family: var(--font); border: none; cursor: pointer; transition: all 0.3s var(--ease); }
.btn-nav-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-nav-outline:hover { border-color: var(--red); color: var(--red); }
.btn-nav-fill { background: var(--red); color: var(--white); }
.btn-nav-fill:hover { background: var(--red-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(230,57,70,0.3); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 28px; height: 20px; position: relative; }
.nav-toggle span { position: absolute; left: 0; width: 100%; height: 2px; background: var(--text); transition: 0.3s; }
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 9px; }
.nav-toggle span:nth-child(3) { top: 18px; }

/* ===== HERO — COMPLETELY NEW ===== */
.hero {
  min-height: 100vh; padding-top: 72px;
  display: flex; align-items: center;
  background: var(--cream);
  position: relative; overflow: hidden;
}
.hero-mesh {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(230,57,70,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 80% 70%, rgba(42,157,143,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 60% 20%, rgba(244,162,97,0.06) 0%, transparent 50%);
  animation: meshMove 12s ease-in-out infinite alternate;
}
@keyframes meshMove {
  0% { transform: scale(1) translateX(0); }
  100% { transform: scale(1.05) translateX(-20px); }
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; position: relative; z-index: 2; padding: 80px 0; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: var(--white); border: 1px solid var(--border); padding: 8px 18px; border-radius: 50px; font-size: 12px; font-weight: 600; color: var(--red); margin-bottom: 24px; box-shadow: var(--shadow-s); }
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero-title { color: var(--navy-deep); margin-bottom: 24px; }
.hero-title .accent { color: var(--red); }
.hero-desc { font-size: 17px; color: var(--text-light); line-height: 1.75; margin-bottom: 36px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; margin-bottom: 48px; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; padding: 16px 32px; background: var(--red); color: var(--white); border-radius: 50px; font-size: 15px; font-weight: 600; font-family: var(--font); border: none; cursor: pointer; transition: all 0.3s var(--ease); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(230,57,70,0.3); }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; padding: 16px 32px; background: var(--white); color: var(--text); border-radius: 50px; font-size: 15px; font-weight: 600; border: 1.5px solid var(--border); font-family: var(--font); cursor: pointer; transition: all 0.3s var(--ease); }
.btn-secondary:hover { border-color: var(--navy); color: var(--navy); }
.hero-proof { display: flex; gap: 40px; }
.proof-item { text-align: left; }
.proof-num { font-family: var(--font-display); font-size: 36px; font-weight: 700; color: var(--navy-deep); letter-spacing: -0.03em; }
.proof-num .plus { color: var(--red); }
.proof-label { font-size: 12px; color: var(--mid-gray); margin-top: 2px; }

/* Hero Visual */
.hero-visual { position: relative; }
.hero-visual-main {
  background: linear-gradient(145deg, var(--navy-deep) 0%, var(--navy) 100%);
  border-radius: var(--r-xl); padding: 36px;
  box-shadow: var(--shadow-xl);
  position: relative; overflow: hidden;
}
.hero-visual-main::before {
  content: ''; position: absolute; top: -50%; right: -30%; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(230,57,70,0.3) 0%, transparent 60%);
  border-radius: 50%;
}
.hv-badge { display: inline-block; background: var(--red); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 20px; position: relative; z-index: 1; }
.hv-title { color: var(--white); font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-bottom: 24px; position: relative; z-index: 1; }
.hv-step { display: flex; align-items: flex-start; gap: 14px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.06); position: relative; z-index: 1; }
.hv-step:last-child { border-bottom: none; }
.hv-step-n { width: 30px; height: 30px; border-radius: 50%; background: rgba(230,57,70,0.2); color: var(--coral); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.hv-step-t { color: var(--white); font-size: 14px; font-weight: 600; }
.hv-step-d { color: rgba(255,255,255,0.4); font-size: 12px; margin-top: 2px; }

/* Floating cards */
.float-card {
  position: absolute; background: var(--white); border-radius: var(--r-m); padding: 16px 20px;
  box-shadow: var(--shadow-l); border: 1px solid var(--border);
  animation: float 5s ease-in-out infinite;
  z-index: 3;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.float-card-1 { top: -20px; right: -30px; animation-delay: 0s; }
.float-card-2 { bottom: 30px; left: -40px; animation-delay: 1.5s; }
.fc-stat { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--teal); }
.fc-label { font-size: 11px; color: var(--text-light); }

/* ===== MARQUEE (PARTNERS) ===== */
.marquee-section { padding: 40px 0; background: var(--white); overflow: hidden; border-bottom: 1px solid var(--border); }
.marquee-title {text-align:center; font-size:12px; font-weight:700; letter-spacing:2px; color:var(--mid-gray); text-transform:uppercase; margin-bottom:24px;}
.marquee-track { display: flex; gap: 80px; animation: marquee 25s linear infinite; white-space: nowrap; align-items: center;}
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.marquee-item { flex-shrink: 0; }
.marquee-item img { height: 40px; width: auto; opacity: 0.6; filter: grayscale(100%); transition: all 0.3s ease; }
.marquee-item img:hover { opacity: 1; filter: grayscale(0%); transform: scale(1.1); }
.client-chip:hover { background: var(--red); color: var(--white); border-color: var(--red); transform: scale(1.05); }

/* ===== SECTION SHARED ===== */
.section { padding: 100px 0; }
.sec-label { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--red); margin-bottom: 16px; }
.sec-label .bar { width: 20px; height: 2px; background: var(--red); }
.sec-title { margin-bottom: 16px; }
.sec-desc { font-size: 16px; color: var(--text-light); max-width: 560px; line-height: 1.7; }
.sec-header-flex { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 56px; }

/* ===== PROBLEM SECTION ===== */
.problems { background: var(--warm-gray); }
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.problem-card {
  padding: 36px; border-radius: var(--r-l); background: var(--white);
  border: 1px solid var(--border); transition: all 0.35s var(--ease);
  position: relative; overflow: hidden;
}
.problem-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--red), var(--coral));
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease);
}
.problem-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.problem-card:hover::after { transform: scaleX(1); }
.problem-num { font-family: var(--font-display); font-size: 64px; font-weight: 700; color: var(--light-gray); line-height: 1; margin-bottom: 16px; }
.problem-icon { font-size: 32px; margin-bottom: 16px; }
.problem-title { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.problem-desc { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== HOW IT WORKS (Visual Timeline) ===== */
.how-section { background: var(--white); }
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.how-visual {
  background: linear-gradient(135deg, #FFF0E5, #FFE0D0);
  border-radius: var(--r-xl); padding: 60px 40px;
  text-align: center; position: relative;
}
.how-visual-icon { font-size: 120px; line-height: 1; margin-bottom: 16px; }
.how-visual-text { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--navy-deep); }
.how-steps { display: flex; flex-direction: column; gap: 0; }
.how-step { display: flex; gap: 20px; padding: 28px 0; border-bottom: 1px solid var(--border); }
.how-step:last-child { border-bottom: none; }
.how-step-marker { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 16px; font-weight: 700; flex-shrink: 0; color: var(--white); }
.how-step:nth-child(1) .how-step-marker { background: var(--red); }
.how-step:nth-child(2) .how-step-marker { background: var(--orange); }
.how-step:nth-child(3) .how-step-marker { background: var(--teal); }
.how-step:nth-child(4) .how-step-marker { background: var(--blue); }
.how-step-title { font-family: var(--font-display); font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.how-step-desc { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.how-step-time { display: inline-block; margin-top: 8px; font-size: 11px; font-weight: 600; color: var(--red); background: rgba(230,57,70,0.06); padding: 3px 10px; border-radius: 20px; }

/* ===== SERVICES BENTO ===== */
.services-section { background: var(--navy-deep); color: var(--white); }
.bento-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: auto auto; gap: 16px; }
.bento-card {
  border-radius: var(--r-l); padding: 32px; position: relative; overflow: hidden;
  transition: all 0.35s var(--ease); cursor: default;
}
.bento-card:hover { transform: translateY(-4px); }
.bento-1 { background: linear-gradient(135deg, #E63946, #FF6B6B); grid-column: span 2; }
.bento-2 { background: linear-gradient(135deg, #2A9D8F, #52C4B8); }
.bento-3 { background: linear-gradient(135deg, #F4A261, #FF8C42); }
.bento-4 { background: linear-gradient(135deg, #457B9D, #5DA3C7); grid-column: span 2; }
.bento-5 { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); grid-column: span 2; }
.bento-icon { font-size: 36px; margin-bottom: 18px; }
.bento-title { font-family: var(--font-display); font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.bento-desc { font-size: 13.5px; opacity: 0.8; line-height: 1.6; }
.bento-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.bento-tag { padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; background: rgba(255,255,255,0.15); backdrop-filter: blur(4px); }

/* ===== COMPARE ===== */
.compare-section { background: var(--warm-gray); }
.compare-table-wrap {
  border-radius: var(--r-xl); overflow: hidden; background: var(--white);
  border: 1px solid var(--border); box-shadow: var(--shadow-m);
}
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table thead tr { background: var(--navy-deep); }
.compare-table thead th { padding: 18px 24px; text-align: left; font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.5); }
.compare-table thead th.hl { color: var(--coral); }
.compare-table tbody tr { border-bottom: 1px solid var(--border); transition: background 0.2s; }
.compare-table tbody tr:hover { background: rgba(230,57,70,0.02); }
.compare-table tbody td { padding: 16px 24px; font-size: 14px; }
.compare-table tbody td:first-child { font-weight: 600; }
.hl-col { background: rgba(230,57,70,0.03); }
.ck { color: var(--teal); font-weight: 700; }
.cx { color: #ccc; }
.cw { color: var(--orange); font-size: 13px; }

/* ===== CASE STUDIES ===== */
.cases-section { background: var(--white); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card {
  border-radius: var(--r-l); overflow: hidden;
  border: 1px solid var(--border); transition: all 0.35s var(--ease);
  background: var(--white);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.case-top {
  padding: 28px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
}
.case-top::after { content: ''; position: absolute; right: -20px; top: -20px; width: 120px; height: 120px; border-radius: 50%; }
.case-card:nth-child(1) .case-top::after { background: rgba(230,57,70,0.15); }
.case-card:nth-child(2) .case-top::after { background: rgba(42,157,143,0.15); }
.case-card:nth-child(3) .case-top::after { background: rgba(244,162,97,0.15); }
.case-card:nth-child(4) .case-top::after { background: rgba(69,123,157,0.15); }
.case-card:nth-child(5) .case-top::after { background: rgba(255,107,107,0.15); }
.case-card:nth-child(6) .case-top::after { background: rgba(42,157,143,0.15); }
.case-industry { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--coral); background: rgba(230,57,70,0.15); padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; position: relative; z-index: 1; }
.case-name { color: var(--white); font-family: var(--font-display); font-size: 20px; font-weight: 700; position: relative; z-index: 1; }
.case-svc { color: rgba(255,255,255,0.4); font-size: 12px; margin-top: 4px; position: relative; z-index: 1; }
.case-body { padding: 24px; }
.case-challenge { font-size: 13.5px; color: var(--text-light); line-height: 1.65; margin-bottom: 20px; border-bottom: 1px solid var(--border); padding-bottom: 20px; }
.case-metrics { display: flex; gap: 12px; }
.cm { flex: 1; text-align: center; }
.cm-val { font-family: var(--font-display); font-size: 22px; font-weight: 700; color: var(--red); }
.cm-label { font-size: 10px; color: var(--mid-gray); margin-top: 2px; }
.case-footer { display: flex; align-items: center; gap: 6px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 11.5px; color: var(--text-light); }
.case-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }

/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--navy-deep) 0%, #1a0a1e 50%, #0D1B2A 100%);
  padding: 120px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before { 
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 50% 50% at 30% 50%, rgba(230,57,70,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 70% 40%, rgba(42,157,143,0.08) 0%, transparent 50%);
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { color: var(--white); text-align: center; margin-bottom: 16px; }
.cta-section .accent { color: var(--coral); }
.cta-desc { color: rgba(255,255,255,0.5); font-size: 17px; max-width: 500px; margin: 0 auto 36px; }
.cta-btns { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.cta-btn-red { display: inline-flex; align-items: center; gap: 8px; padding: 16px 32px; background: var(--red); color: var(--white); border-radius: 50px; font-size: 15px; font-weight: 700; transition: all 0.3s var(--ease); font-family: var(--font); }
.cta-btn-red:hover { background: var(--coral); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(230,57,70,0.35); }
.cta-btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 16px 32px; border: 1.5px solid rgba(255,255,255,0.15); color: rgba(255,255,255,0.7); border-radius: 50px; font-size: 15px; font-weight: 600; transition: all 0.3s var(--ease); font-family: var(--font); }
.cta-btn-outline:hover { border-color: rgba(255,255,255,0.4); color: var(--white); }
.cta-contacts { display: flex; justify-content: center; gap: 36px; margin-top: 48px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.06); flex-wrap: wrap; }
.cta-ci { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.4); font-size: 14px; }
.cta-ci span:first-child { color: var(--coral); }

/* ===== CONTACT FORM ===== */
.contact-section { background: var(--warm-gray); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-sidebar { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex; gap: 16px; align-items: flex-start; padding: 20px;
  border-radius: var(--r-m); background: var(--white); border: 1px solid var(--border);
  transition: all 0.3s var(--ease);
}
.contact-card:hover { border-color: var(--red); box-shadow: var(--shadow-s); transform: translateX(4px); }
.contact-card-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.contact-card:nth-child(1) .contact-card-icon { background: rgba(230,57,70,0.08); }
.contact-card:nth-child(2) .contact-card-icon { background: rgba(42,157,143,0.08); }
.contact-card:nth-child(3) .contact-card-icon { background: rgba(69,123,157,0.08); }
.contact-card:nth-child(4) .contact-card-icon { background: rgba(244,162,97,0.08); }
.contact-card h4 { font-size: 14px; font-weight: 700; margin-bottom: 3px; font-family: var(--font); }
.contact-card p { font-size: 13px; color: var(--text-light); }
.contact-form-wrap {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 40px; box-shadow: var(--shadow-l);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-input {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--border); border-radius: var(--r-s);
  font-size: 14px; font-family: var(--font); background: var(--warm-gray); transition: all 0.25s var(--ease);
}
.form-input:focus { outline: none; border-color: var(--red); background: var(--white); box-shadow: 0 0 0 3px rgba(230,57,70,0.06); }
textarea.form-input { min-height: 100px; resize: vertical; }

/* ===== FOOTER ===== */
.footer { background: var(--navy-deep); padding: 60px 40px 32px; color: rgba(255,255,255,0.4); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand img { height: 44px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 13px; line-height: 1.7; max-width: 280px; }
.footer-col h4 { color: var(--white); font-size: 14px; font-weight: 700; margin-bottom: 18px; font-family: var(--font); }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--coral); }
.footer-contact li { display: flex; align-items: center; gap: 8px; font-size: 13px; margin-bottom: 10px; list-style: none; }
.footer-contact li i { color: var(--coral); width: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 12px; }
.social-row { display: flex; gap: 10px; }
.social-row a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.4); transition: all 0.3s; }
.social-row a:hover { border-color: var(--red); color: var(--coral); background: rgba(230,57,70,0.1); }

/* ===== FLOATING BUTTONS ===== */
.float-buttons { position: fixed; bottom: 24px; right: 24px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.float-btn { width: 50px; height: 50px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; color: var(--white); border: none; cursor: pointer; box-shadow: var(--shadow-m); transition: all 0.3s var(--ease); }
.float-btn:hover { transform: scale(1.1); box-shadow: var(--shadow-l); }
.float-zalo { background: #0068FF; }
.float-phone { background: var(--teal); }

/* ===== ANIMATIONS ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.show { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-inner, .how-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-1, .bento-4, .bento-5 { grid-column: span 1; }
  .cases-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu, .nav-actions { display: none; }
  .nav-toggle { display: block; }
  .problem-grid, .bento-grid, .cases-grid { grid-template-columns: 1fr; }
  .bento-1, .bento-4, .bento-5 { grid-column: span 1; }
  .hero-proof { flex-wrap: wrap; gap: 24px; }
  .sec-header-flex { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-contacts { flex-direction: column; align-items: center; gap: 12px; }
  .hero-visual { order: -1; }
  .float-card { display: none; }
  .form-row { grid-template-columns: 1fr; }
}

/* ===== ABOUT PAGE ===== */
.page-hero { padding: 140px 0 72px; background: var(--cream); position: relative; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 30%, rgba(230,57,70,0.05) 0%, transparent 50%); }
.page-hero .container { position: relative; z-index: 1; }

/* ===== SERVICE DETAIL ===== */
.service-block { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 80px; }
.service-block:nth-child(even) .service-vis { order: -1; }
.service-vis {
  border-radius: var(--r-xl); padding: 56px 40px; text-align: center;
  border: 1px solid var(--border); position: relative; overflow: hidden;
}
.service-vis-1 { background: linear-gradient(135deg, #FFF0E5, #FFE0D0); }
.service-vis-2 { background: linear-gradient(135deg, #E8F5F3, #D0EBE6); }
.service-vis-3 { background: linear-gradient(135deg, #EDF2F7, #D6E4F0); }
.service-vis-4 { background: linear-gradient(135deg, #FFF5F5, #FFEAEA); }
.service-vis span { font-size: 80px; display: block; margin-bottom: 12px; }
.service-vis h4 { font-family: var(--font-display); font-size: 22px; font-weight: 700; color: var(--text); }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; line-height: 1.6; }
.feature-list li i { color: var(--red); margin-top: 4px; flex-shrink: 0; }