/* ============================================================
   THE WILD CARD — AI Cho Mọi Trẻ Em (Foundation / phi lợi nhuận)
   Brand: cobalt #2326AA · lime #CAFE04 · Arsenal / Protest Strike
   Lime-forward "giving arm" variant of the brand system.
   ============================================================ */

:root {
  --blue: #2326AA;
  --blue-deep: #1B1E8F;
  --blue-ink: #14164F;
  --lime: #CAFE04;
  --lime-soft: #EDFFB0;
  --paper: #FFFFFF;
  --cloud: #F6F7FE;
  --orange: #FF7A1A;
  --red: #F5333F;
  --pink: #F04E98;
  --sky: #00A3E0;
  --green: #00B140;
  --yellow: #FFCD00;
  --font-display: "Protest Strike", "Be Vietnam Pro", "Arial Black", sans-serif;
  --font-body: "Arsenal", "Be Vietnam Pro", "Segoe UI", sans-serif;
  --shadow-card: 0 8px 30px rgba(20, 22, 79, 0.10);
  --shadow-pop: 0 18px 50px rgba(20, 22, 79, 0.18);
  --radius: 20px;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  font-family: var(--font-body);
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--blue-ink);
  background: var(--paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: min(1160px, 92%); margin-inline: auto; }
.section { padding: clamp(64px, 9vw, 110px) 0; }

h1, h2, h3 { line-height: 1.12; }
h1, h2 { font-family: var(--font-display); font-weight: 400; letter-spacing: .01em; }
h2 { font-size: clamp(30px, 4.2vw, 46px); color: var(--blue); }

.kicker {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--pink);
  margin-bottom: 14px;
}
.kicker-lime { color: var(--green); }

.section-head { max-width: 780px; margin: 0 auto 48px; text-align: center; }
.section-sub { margin-top: 16px; font-size: 18px; color: #4A4C7A; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .2s, color .2s;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn-lime { background: var(--lime); color: var(--blue); box-shadow: 0 6px 20px rgba(202, 254, 4, .45); }
.btn-lime:hover { box-shadow: 0 10px 28px rgba(202, 254, 4, .6); }
.btn-blue { background: var(--blue); color: #fff; box-shadow: 0 6px 20px rgba(35, 38, 170, .35); }
.btn-blue:hover { box-shadow: 0 10px 28px rgba(35, 38, 170, .5); }
.btn-outline { border-color: var(--blue); color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; }
.btn-lg { padding: 16px 32px; font-size: 17px; }
.btn-block { width: 100%; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal[data-delay="3"] { transition-delay: .36s; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ============ NAV ============ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(35, 38, 170, .08);
  transition: box-shadow .3s;
}
.nav.is-scrolled { box-shadow: 0 4px 24px rgba(20, 22, 79, .08); }
.nav-inner { width: min(1240px, 94%); margin-inline: auto; display: flex; align-items: center; gap: 28px; height: 78px; }
.nav-logo { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.nav-logo-img { height: 44px; width: auto; transition: height .3s var(--ease-out); }
.nav.is-scrolled .nav-logo-img { height: 38px; }
.nav-logo-tag {
  font-weight: 700; font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  background: var(--green); color: #fff;
  padding: 4px 10px; border-radius: 999px;
}
.nav-links { display: flex; gap: 24px; }
.nav-links a { font-weight: 700; font-size: 15.5px; color: var(--blue-ink); position: relative; padding: 6px 0; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 0; background: var(--lime); border-radius: 2px; transition: width .3s var(--ease-out); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { white-space: nowrap; }
/* language switch */
.lang-switch { display: inline-flex; gap: 2px; background: rgba(35, 38, 170, .08); border-radius: 999px; padding: 3px; flex: 0 0 auto; }
.lang-btn { border: 0; background: transparent; font-family: var(--font-body); font-weight: 700; font-size: 13px; letter-spacing: .04em; color: #6A6C99; padding: 6px 12px; border-radius: 999px; cursor: pointer; transition: background .2s, color .2s; }
.lang-btn.is-active { background: var(--blue); color: #fff; }
.nav-lang { margin-left: 4px; }

.nav-burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-burger span { display: block; width: 24px; height: 3px; background: var(--blue); border-radius: 2px; margin: 5px 0; transition: .3s; }
.nav-mobile { display: none; }

@media (max-width: 940px) {
  .nav-links, .nav-cta { display: none; }
  .nav-inner { gap: 12px; }
  .nav-lang { margin-left: auto; }
  .nav-burger { display: block; }
  .nav-mobile { display: flex; flex-direction: column; gap: 4px; padding: 0 6%; overflow: hidden; max-height: 0; transition: max-height .4s var(--ease-out), padding .4s; background: #fff; }
  .nav.menu-open .nav-mobile { max-height: 460px; padding: 12px 6% 24px; }
  .nav-mobile a { padding: 12px 0; font-weight: 700; border-bottom: 1px solid rgba(35,38,170,.07); }
  .nav-mobile .btn { margin-top: 14px; text-align: center; border: 0; }
  .nav.menu-open .nav-burger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav.menu-open .nav-burger span:nth-child(2) { opacity: 0; }
  .nav.menu-open .nav-burger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* ============ HERO (lime) ============ */
.hero {
  position: relative;
  background: linear-gradient(150deg, var(--lime) 0%, #B8F004 60%, #A6E600 100%);
  color: var(--blue);
  padding: clamp(140px, 18vw, 190px) 0 clamp(70px, 9vw, 110px);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; animation: drift 14s ease-in-out infinite alternate; }
.blob-1 { width: 460px; height: 460px; background: #DBFF6B; top: -140px; right: -80px; }
.blob-2 { width: 360px; height: 360px; background: #E4FF8A; bottom: -160px; left: -100px; animation-delay: -7s; }
@keyframes drift { from { transform: translate(0,0) scale(1); } to { transform: translate(40px, 30px) scale(1.08); } }
.spark { position: absolute; width: 24px; fill: var(--blue); opacity: .5; animation: twinkle 3.6s ease-in-out infinite; }
.spark-1 { top: 20%; left: 5%; }
.spark-2 { top: 16%; right: 10%; width: 16px; animation-delay: -1.4s; }
@keyframes twinkle { 0%,100% { transform: scale(1) rotate(0); opacity: .5; } 50% { transform: scale(.5) rotate(24deg); opacity: .2; } }
.heart-float { position: absolute; right: 8%; bottom: 12%; width: 46px; fill: var(--blue); opacity: .18; animation: beat 3s ease-in-out infinite; }
@keyframes beat { 0%,100% { transform: scale(1); } 15% { transform: scale(1.14); } 30% { transform: scale(1); } 45% { transform: scale(1.1); } }

.hero-inner { position: relative; width: min(1240px, 94%); margin-inline: auto; display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(36px, 5vw, 64px); align-items: center; }
.badge-pill {
  display: inline-block;
  background: rgba(35, 38, 170, .1);
  border: 1px solid rgba(35, 38, 170, .3);
  color: var(--blue);
  font-weight: 700; font-size: 14px;
  padding: 8px 18px; border-radius: 999px; margin-bottom: 26px;
}
.hero h1 { font-size: clamp(38px, 5.4vw, 62px); margin-bottom: 22px; color: var(--blue); }
.hero h1 em { font-style: normal; color: var(--blue-ink); text-decoration: underline; text-decoration-color: #fff; text-decoration-thickness: 5px; text-underline-offset: 6px; }
.hero-sub { font-size: clamp(17px, 1.5vw, 19.5px); color: #232663; max-width: 580px; margin-bottom: 30px; }
.hero-sub strong { color: var(--blue-ink); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.hero-note { font-size: 14.5px; color: #2A2D6B; max-width: 560px; font-weight: 700; }

.hero-visual { display: flex; justify-content: center; }
.hero-globe { width: min(100%, 400px); }
.globe-ring { fill: none; stroke: var(--blue); opacity: .25; }
.globe-ring-1 { stroke-width: 2; stroke-dasharray: 6 10; animation: spin 40s linear infinite; transform-origin: 210px 210px; }
.globe-ring-2 { stroke-width: 2; opacity: .18; }
.globe-core { fill: rgba(35, 38, 170, .06); }
@keyframes spin { to { transform: rotate(360deg); } }
.orbit { transform-origin: 210px 210px; }
.orbit-a { animation: spin 18s linear infinite; }
.orbit-b { animation: spin 18s linear infinite; animation-delay: -4.5s; }
.orbit-c { animation: spin 18s linear infinite; animation-delay: -9s; }
.orbit-d { animation: spin 18s linear infinite; animation-delay: -13.5s; }

@media (max-width: 940px) { .hero-inner { grid-template-columns: 1fr; } .hero-visual { display: none; } }

/* ============ MARQUEE ============ */
.marquee { background: var(--blue); overflow: hidden; padding: 14px 0; border-block: 3px solid var(--lime); }
.marquee-track { display: flex; align-items: center; gap: 34px; width: max-content; animation: marquee 26s linear infinite; }
.marquee span { font-family: var(--font-display); font-size: 22px; color: var(--lime); white-space: nowrap; }
.marquee i { font-style: normal; color: #fff; font-size: 15px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============ WHY ============ */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.why-card { background: #fff; border: 1px solid rgba(35, 38, 170, .09); border-radius: var(--radius); padding: 34px 30px; box-shadow: var(--shadow-card); transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out); }
.why-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-pop); }
.why-icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 20px; }
.why-icon svg { width: 28px; fill: #fff; }
.why-card[data-accent="pink"] .why-icon { background: var(--pink); }
.why-card[data-accent="orange"] .why-icon { background: var(--orange); }
.why-card[data-accent="green"] .why-icon { background: var(--green); }
.why-card h3 { font-size: 21px; margin-bottom: 10px; color: var(--blue); }
.why-card p { font-size: 16px; color: #4A4C7A; }
@media (max-width: 860px) { .why-grid { grid-template-columns: 1fr; } }

/* ============ PATHS ============ */
.paths { background: var(--cloud); }
.paths-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.path-card {
  display: block;
  border-radius: calc(var(--radius) + 6px);
  padding: 40px 36px;
  border: 2px solid transparent;
  box-shadow: var(--shadow-card);
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out);
}
.path-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-pop); }
.path-card[data-accent="blue"] { background: var(--blue); color: #fff; }
.path-card[data-accent="lime"] { background: var(--lime); color: var(--blue); }
.path-tag { display: inline-block; font-weight: 700; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; padding: 6px 14px; border-radius: 999px; margin-bottom: 18px; }
.path-card[data-accent="blue"] .path-tag { background: rgba(255,255,255,.16); color: var(--lime); }
.path-card[data-accent="lime"] .path-tag { background: var(--blue); color: var(--lime); }
.path-card h3 { font-family: var(--font-display); font-weight: 400; font-size: 30px; margin-bottom: 14px; }
.path-card[data-accent="blue"] h3 { color: #fff; }
.path-card[data-accent="lime"] h3 { color: var(--blue); }
.path-card p { font-size: 16.5px; margin-bottom: 22px; }
.path-card[data-accent="blue"] p { color: #DDDEF8; }
.path-card[data-accent="lime"] p { color: #232663; }
.path-link { font-weight: 700; font-size: 16px; }
.path-card[data-accent="blue"] .path-link { color: var(--lime); }
@media (max-width: 800px) { .paths-grid { grid-template-columns: 1fr; } }

/* ============ STUDENTS ============ */
.students-inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 64px); align-items: start; }
.students-copy > p { color: #4A4C7A; margin-bottom: 26px; }
.check-list li { position: relative; padding-left: 38px; margin-bottom: 14px; font-size: 16.5px; font-weight: 700; color: var(--blue-ink); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 26px; height: 26px; border-radius: 8px; background: var(--green); color: #fff; font-size: 15px; font-weight: 900; display: grid; place-items: center; }
.criteria-card { background: var(--blue); color: #fff; border-radius: calc(var(--radius) + 4px); padding: 38px 34px; box-shadow: var(--shadow-pop); }
.criteria-card h3 { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 400; font-size: 24px; color: var(--lime); margin-bottom: 12px; }
.criteria-card h3 svg { width: 24px; fill: var(--lime); }
.criteria-lead { font-size: 15.5px; color: #D5D7F6; margin-bottom: 20px; }
.criteria-list li { position: relative; padding-left: 26px; margin-bottom: 13px; font-size: 15.5px; color: #E4E5FA; }
.criteria-list li::before { content: "✦"; position: absolute; left: 0; color: var(--lime); }
.criteria-list strong { color: #fff; }
.criteria-note { font-size: 14.5px; font-style: italic; color: #B9BCF0; margin: 18px 0 24px; }
@media (max-width: 860px) { .students-inner { grid-template-columns: 1fr; } }

/* ============ TEACHERS ============ */
.teachers { background: var(--cloud); }
.give-get { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-bottom: 40px; }
.gg-col { background: #fff; border-radius: calc(var(--radius) + 4px); padding: 36px 32px; box-shadow: var(--shadow-card); position: relative; }
.gg-col h3 { font-family: var(--font-display); font-weight: 400; font-size: 24px; color: var(--blue); margin-bottom: 20px; }
.gg-col ul li { display: flex; gap: 12px; margin-bottom: 14px; font-size: 16px; color: #3A3C6B; }
.gg-col ul li span { color: var(--green); font-weight: 700; flex: 0 0 auto; }
.gg-give { border: 2.5px solid var(--lime); }
.gg-give ul li span { color: var(--pink); }
.commit-badge {
  position: absolute; top: -26px; right: 28px;
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--lime); color: var(--blue);
  display: grid; place-items: center; text-align: center; line-height: 1;
  box-shadow: 0 10px 24px rgba(202, 254, 4, .5);
  transform: rotate(-6deg);
}
.commit-num { font-family: var(--font-display); font-size: 38px; }
.commit-unit { font-size: 11px; font-weight: 700; margin-top: 2px; }
.gg-give h3 { padding-right: 80px; }

.teacher-elig { background: var(--blue); color: #fff; border-radius: calc(var(--radius) + 6px); padding: 44px clamp(24px, 4vw, 48px); text-align: center; }
.teacher-elig h4 { font-family: var(--font-display); font-weight: 400; font-size: 24px; color: var(--lime); margin-bottom: 28px; }
.elig-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 32px; text-align: left; }
.elig-item { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 14px; padding: 20px; }
.elig-item strong { display: block; color: var(--lime); font-size: 17px; margin-bottom: 6px; }
.elig-item span { font-size: 14.5px; color: #D5D7F6; }
@media (max-width: 860px) { .give-get { grid-template-columns: 1fr; } .commit-badge { top: -22px; } .elig-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .elig-grid { grid-template-columns: 1fr; } }

/* ============ HOW ============ */
.how-cols { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 60px); }
.how-col > h3 { margin-bottom: 26px; }
.how-chip { display: inline-block; background: var(--blue); color: #fff; font-family: var(--font-body); font-weight: 700; font-size: 15px; letter-spacing: .06em; text-transform: uppercase; padding: 8px 20px; border-radius: 999px; }
.how-chip-lime { background: var(--lime); color: var(--blue); }
.how-line li { display: flex; gap: 18px; margin-bottom: 22px; }
.how-dot { flex: 0 0 auto; width: 42px; height: 42px; border-radius: 50%; background: var(--blue); color: var(--lime); font-family: var(--font-display); font-size: 18px; display: grid; place-items: center; }
.how-dot-lime { background: var(--lime); color: var(--blue); }
.how-line strong { display: block; font-size: 17px; color: var(--blue); margin-bottom: 4px; }
.how-line p { font-size: 15px; color: #4A4C7A; }
@media (max-width: 800px) { .how-cols { grid-template-columns: 1fr; } }

/* ============ GOALS ============ */
.goals { background: var(--blue-deep); color: #fff; position: relative; overflow: hidden; }
.goals::after { content: ""; position: absolute; right: -140px; top: -160px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(202,254,4,.18), transparent 70%); }
.goals .section-head h2 { color: #fff; }
.goals .section-sub { color: #C9CBF4; }
.goals-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.goal-num { display: block; font-family: var(--font-display); font-size: clamp(40px, 5vw, 60px); color: var(--lime); line-height: 1; }
.goal-num::after { content: "+"; color: var(--pink); }
.goal-label { display: block; margin-top: 10px; font-size: 15px; font-weight: 700; color: #D5D7F6; }
.goals-note { position: relative; z-index: 1; text-align: center; margin-top: 36px; font-size: 14.5px; font-style: italic; color: #B9BCF0; }
@media (max-width: 760px) { .goals-grid { grid-template-columns: 1fr 1fr; } }

/* ============ DONATE ============ */
.donate-inner { text-align: center; }
.donate-copy { max-width: 760px; margin: 0 auto 44px; }
.donate-copy > p { color: #4A4C7A; margin-top: 12px; }
.donate-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 40px; }
.donate-card { background: #fff; border: 1px solid rgba(35, 38, 170, .09); border-radius: var(--radius); padding: 30px 24px; box-shadow: var(--shadow-card); text-align: left; transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out); }
.donate-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-pop); }
.donate-icon { font-size: 34px; margin-bottom: 14px; }
.donate-card h3 { font-size: 19px; color: var(--blue); margin-bottom: 8px; }
.donate-card p { font-size: 14.5px; color: #4A4C7A; }
@media (max-width: 900px) { .donate-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .donate-grid { grid-template-columns: 1fr; } }

/* ============ FAQ ============ */
.faq-inner { max-width: 860px; }
.faq-list details { background: #fff; border: 1px solid rgba(35, 38, 170, .12); border-radius: 16px; margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s; }
.faq-list details[open] { box-shadow: var(--shadow-card); border-color: rgba(35, 38, 170, .3); }
.faq-list summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; cursor: pointer; padding: 20px 24px; font-weight: 700; font-size: 17px; color: var(--blue); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-icon { flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%; background: var(--lime); position: relative; transition: transform .3s var(--ease-out); }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; top: 50%; left: 50%; background: var(--blue); border-radius: 2px; transform: translate(-50%, -50%); }
.faq-icon::before { width: 14px; height: 3px; }
.faq-icon::after { width: 3px; height: 14px; transition: opacity .2s; }
details[open] .faq-icon { transform: rotate(180deg); }
details[open] .faq-icon::after { opacity: 0; }
.faq-list p { padding: 0 24px 22px; color: #4A4C7A; font-size: 16px; }
.faq-list strong { color: var(--blue-ink); }

/* ============ REGISTER ============ */
.register { background: linear-gradient(150deg, var(--blue) 0%, var(--blue-deep) 70%, #15177C 100%); color: #fff; }
.register-inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 64px); align-items: start; }
.register h2 { color: #fff; margin-bottom: 16px; }
.register-copy > p { color: #D5D7F6; margin-bottom: 30px; max-width: 460px; }
.contact-quick { display: flex; flex-wrap: wrap; gap: 14px; }
.quick-btn { display: flex; align-items: center; gap: 12px; padding: 12px 22px; border-radius: 16px; font-weight: 700; color: #fff; box-shadow: 0 8px 24px rgba(0,0,10,.3); transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out); }
.quick-btn:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(0,0,10,.4); }
.quick-btn svg { width: 26px; height: 26px; fill: currentColor; flex: 0 0 auto; }
.quick-btn span { display: flex; flex-direction: column; line-height: 1.2; font-size: 16.5px; }
.quick-btn small { font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; opacity: .85; }
.quick-call { background: var(--lime); color: var(--blue); }
.quick-zalo { background: #0068FF; }
.quick-mail { background: var(--pink); }

.register-form { background: #fff; color: var(--blue-ink); border-radius: calc(var(--radius) + 4px); padding: 34px 32px; box-shadow: 0 30px 70px rgba(0,0,10,.35); position: relative; }
.role-toggle { display: flex; gap: 8px; background: var(--cloud); border-radius: 14px; padding: 6px; margin-bottom: 26px; }
.role-btn { flex: 1; border: 0; background: transparent; font-family: var(--font-body); font-weight: 700; font-size: 14.5px; color: #6A6C99; padding: 12px 10px; border-radius: 10px; cursor: pointer; transition: background .2s, color .2s; }
.role-btn.is-active { background: var(--blue); color: #fff; box-shadow: 0 4px 12px rgba(35,38,170,.3); }
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-weight: 700; font-size: 14.5px; margin-bottom: 7px; }
.form-row label .req { color: var(--red); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; font-family: var(--font-body); font-size: 16px; padding: 13px 16px;
  border: 1.5px solid rgba(35, 38, 170, .2); border-radius: 12px; background: var(--cloud); color: var(--blue-ink);
  transition: border-color .2s, box-shadow .2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(202, 254, 4, .35); }
.form-check .check-label { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: 14.5px; cursor: pointer; }
.form-check input { width: 20px; height: 20px; flex: 0 0 auto; margin-top: 2px; accent-color: var(--blue); }
.form-fine { margin-top: 14px; font-size: 13px; color: #6A6C99; text-align: center; }
.form-success { position: absolute; inset: 0; background: #fff; border-radius: inherit; display: grid; place-content: center; gap: 8px; text-align: center; padding: 40px; }
.form-success[hidden] { display: none; }
.form-error { margin-top: 14px; padding: 14px 18px; border-radius: 12px; background: #FFECEC; border: 1px solid rgba(245,51,63,.35); }
.form-error[hidden] { display: none; }
.form-error strong { display: block; color: var(--red); font-size: 15px; margin-bottom: 3px; }
.form-error p { font-size: 13.5px; color: #7A2A2E; }
.form-error a { color: var(--red); font-weight: 700; text-decoration: underline; }
.form-success strong { font-size: 22px; color: var(--green); }
.form-success p { color: #4A4C7A; }
@media (max-width: 860px) { .register-inner { grid-template-columns: 1fr; } }

/* ============ FOOTER ============ */
.footer { background: var(--blue-ink); color: #C9CBF4; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; padding: 64px 0 48px; }
.footer-logo { width: 170px; margin-bottom: 18px; }
.footer-brand p { font-size: 15px; max-width: 320px; }
.footer-brand strong { color: var(--lime); }
.footer-lang { margin-top: 20px; background: rgba(255, 255, 255, .1); }
.footer-lang .lang-btn { color: #C9CBF4; }
.footer-lang .lang-btn.is-active { background: var(--lime); color: var(--blue); }
.footer-col h4 { font-size: 13.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--lime); margin-bottom: 16px; }
.footer-col a { display: block; margin-bottom: 10px; font-size: 15px; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-bar { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; font-size: 13px; color: #8A8CBF; }
@media (max-width: 860px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-inner { grid-template-columns: 1fr; } }