/* ============================================================
   Sanvi Educational and Charitable Trust - Donation Landing Page
   ============================================================ */

:root {
  --navy: #003BA7;
  --navy-light: #1450C4;
  --navy-dim: #4a6199;
  --amber: #E76A17;
  --amber-dark: #D85C0B;
  --teal: #1f8a70;
  --teal-light: #e7f6f1;
  --cream: #faf7f2;
  --paper: #ffffff;
  --ink: #1d1d1f;
  --ink-soft: #5a5f6b;
  --border: #e7e2d9;
  --danger: #c94d3a;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 39, 72, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 39, 72, 0.10);
  --shadow-lg: 0 20px 50px rgba(15, 39, 72, 0.16);
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: 'Poppins', 'Inter', sans-serif;
  color: var(--navy);
  margin: 0 0 .5em;
  line-height: 1.25;
}
p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 88px 0; }
.section--tight { padding: 56px 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--amber-dark);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--amber);
  display: inline-block;
}
.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 38px); }
.section-head p { color: var(--ink-soft); font-size: 17px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 26px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--amber); color: #fff; box-shadow: 0 10px 24px rgba(231,106,23,.35); }
.btn-primary:hover { background: var(--amber-dark); box-shadow: 0 12px 28px rgba(216,92,11,.4); }
.btn-outline { background: transparent; color: var(--paper); border: 1.5px solid rgba(255,255,255,.55); }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-ghost { background: transparent; color: var(--navy); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--navy); }
.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(250,247,242,.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy); font-size: 18px; }
.brand-mark {
  width: 44px; height: 44px; object-fit: contain; flex-shrink: 0;
}
.brand small { display: block; font-size: 11px; font-weight: 600; color: var(--ink-soft); letter-spacing: .03em; }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a { font-size: 14.5px; font-weight: 600; color: var(--navy-dim); transition: color .15s; }
.main-nav a:hover { color: var(--navy); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.donor-chip {
  display: none;
  align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: var(--teal);
  background: var(--teal-light); padding: 7px 14px; border-radius: 999px;
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }

@media (max-width: 880px) {
  .main-nav { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: radial-gradient(ellipse at top right, #1c3f6b 0%, var(--navy) 55%, #081627 100%);
  color: #fff;
  overflow: hidden;
  padding: 72px 0 0;
}
.hero .container {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px;
  align-items: center;
  padding-bottom: 64px;
}
.hero-trust-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.trust-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 700; color: #cfe3ff;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
  padding: 6px 12px; border-radius: 999px;
}
.hero h1 { color: #fff; font-size: clamp(32px, 4.4vw, 50px); letter-spacing: -.01em; }
.hero h1 .accent { color: var(--amber); }
.hero-sub { color: #c9d4e4; font-size: 18px; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; margin: 28px 0 32px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-stat b { display: block; font-size: 24px; color: #fff; font-family: 'Poppins', sans-serif; }
.hero-stat span { font-size: 13px; color: #a9b8d1; }

.hero-visual {
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero-card {
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 26px; width: 100%; max-width: 380px;
  color: var(--ink);
}
.hero-card-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.hero-card-top b { font-family: 'Poppins', sans-serif; font-size: 22px; color: var(--navy); }
.hero-card-top span { font-size: 13px; color: var(--ink-soft); }
.progress-track {
  height: 10px; background: #eee; border-radius: 999px; overflow: hidden; margin: 14px 0 10px;
}
.progress-fill {
  height: 100%; background: linear-gradient(90deg, var(--teal), #27b998);
  border-radius: 999px; width: 0%;
  transition: width 1.2s cubic-bezier(.2,.8,.2,1);
}
.progress-meta { display: flex; justify-content: space-between; font-size: 13px; color: var(--ink-soft); margin-bottom: 18px; }
.progress-meta strong { color: var(--navy); }
.hero-card-donors { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-soft); margin-top: 16px; }
.avatar-stack { display: flex; }
.avatar-stack span {
  width: 26px; height: 26px; border-radius: 50%; background: var(--amber);
  color: var(--navy); font-size: 11px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid #fff; margin-left: -8px;
}
.avatar-stack span:first-child { margin-left: 0; }

.hero-blob {
  position: absolute; border-radius: 50%; filter: blur(0px); opacity: .5; z-index: 1;
}
.blob-1 { width: 420px; height: 420px; background: radial-gradient(circle, #E76A1733, transparent 70%); top: -120px; right: -80px; }
.blob-2 { width: 300px; height: 300px; background: radial-gradient(circle, #1f8a7044, transparent 70%); bottom: -140px; left: -60px; }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; padding-top: 8px; }
  .hero-visual { order: -1; }
}

/* ---------- Who's giving / Personalization bar ---------- */
.persona {
  background: var(--paper);
  border-bottom: 1px solid var(--border);
}
.persona .container { padding-top: 28px; padding-bottom: 28px; }
.persona-row {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: space-between;
}
.persona-label { font-weight: 700; color: var(--navy); font-size: 14.5px; white-space: nowrap; }
.persona-options { display: flex; gap: 10px; flex-wrap: wrap; }
.persona-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: 999px; border: 1.5px solid var(--border);
  background: var(--cream); font-size: 13.5px; font-weight: 600; color: var(--navy-dim);
  cursor: pointer; transition: all .15s;
}
.persona-btn:hover { border-color: var(--teal); }
.persona-btn.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }
.persona-name-field { display: flex; align-items: center; gap: 8px; }
.persona-name-field input {
  border: 1.5px solid var(--border); border-radius: 999px; padding: 9px 16px;
  font-size: 13.5px; font-family: inherit; width: 190px;
}
.persona-name-field input:focus { outline: none; border-color: var(--teal); }

/* ---------- Impact stats ---------- */
.stats-strip { background: var(--navy); color: #fff; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  padding: 56px 0;
}
.stat-item { text-align: center; }
.stat-item b {
  display: block; font-family: 'Poppins', sans-serif; font-size: clamp(28px,3.4vw,40px);
  color: var(--amber);
}
.stat-item span { font-size: 14px; color: #c9d4e4; }
@media (max-width: 760px) { .stats-grid { grid-template-columns: repeat(2,1fr); } }

/* ---------- Problem / Why section ---------- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.why-illustration {
  background: linear-gradient(160deg, var(--teal-light), #fff);
  border-radius: var(--radius-lg); padding: 32px;
  border: 1px solid var(--border);
}
.why-points { display: flex; flex-direction: column; gap: 18px; margin-top: 24px; }
.why-point { display: flex; gap: 14px; align-items: flex-start; }
.why-point .ico {
  flex-shrink: 0; width: 38px; height: 38px; border-radius: 10px;
  background: #FBE2D2; color: var(--amber-dark);
  display: flex; align-items: center; justify-content: center;
}
.why-point h4 { margin: 0 0 4px; font-size: 16px; }
.why-point p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }
@media (max-width: 860px) { .why-grid { grid-template-columns: 1fr; } }

/* ---------- Budget breakdown ---------- */
.budget-card {
  background: var(--paper); border-radius: var(--radius-lg); border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); padding: 36px; max-width: 760px; margin: 0 auto;
}
.budget-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-bottom: 1px dashed var(--border); font-size: 15px;
}
.budget-row:last-child { border-bottom: none; }
.budget-row span:first-child { color: var(--ink-soft); display:flex; align-items:center; gap:10px; }
.budget-row b { color: var(--navy); font-family: 'Poppins', sans-serif; }
.budget-total {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 18px; padding-top: 18px; border-top: 2px solid var(--navy);
  font-size: 18px;
}
.budget-total b { color: var(--amber-dark); font-size: 22px; font-family: 'Poppins', sans-serif; }

/* ---------- Giving tiers ---------- */
.tiers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.tier-card {
  background: var(--paper); border: 1.5px solid var(--border); border-radius: var(--radius-md);
  padding: 28px 22px; text-align: center; transition: all .18s; position: relative; cursor: pointer;
}
.tier-card:hover { border-color: var(--teal); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.tier-card.is-recommended { border-color: var(--amber); box-shadow: 0 10px 28px rgba(240,165,0,.18); }
.tier-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--amber); color: #fff; font-size: 11px; font-weight: 800;
  padding: 4px 12px; border-radius: 999px; letter-spacing: .03em;
}
.tier-amount { font-family: 'Poppins', sans-serif; font-size: 26px; color: var(--navy); margin-bottom: 6px; }
.tier-card p { font-size: 13.5px; color: var(--ink-soft); min-height: 44px; }
@media (max-width: 920px) { .tiers-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px) { .tiers-grid { grid-template-columns: 1fr; } }

/* ---------- Sponsor a classroom ---------- */
.classroom-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
}
.classroom-card {
  background: var(--paper); border: 1.5px solid var(--border); border-radius: var(--radius-md);
  padding: 20px 14px; text-align: center; cursor: pointer; transition: all .18s;
}
.classroom-card:hover { border-color: var(--navy); transform: translateY(-2px); }
.classroom-card .room-ico {
  width: 46px; height: 46px; margin: 0 auto 10px; border-radius: 12px;
  background: var(--teal-light); color: var(--teal);
  display: flex; align-items: center; justify-content: center;
}
.classroom-card h4 { font-size: 14px; margin: 0 0 4px; }
.classroom-card .room-status { font-size: 12px; color: var(--ink-soft); }
.classroom-card.is-sponsored { background: var(--teal-light); border-color: var(--teal); }
.classroom-card.is-sponsored .room-status { color: var(--teal); font-weight: 700; }
.classroom-card.is-mine { background: #FFF1E6; border-color: var(--amber); }
.classroom-card.is-mine .room-status { color: var(--amber-dark); font-weight: 700; }
@media (max-width: 920px) { .classroom-grid { grid-template-columns: repeat(3,1fr); } }
@media (max-width: 560px) { .classroom-grid { grid-template-columns: repeat(2,1fr); } }

/* ---------- Testimonials ---------- */
.testi-card {
  background: var(--navy); color: #fff; border-radius: var(--radius-lg);
  padding: 44px; max-width: 760px; margin: 0 auto; text-align: center;
  position: relative;
}
.testi-quote { font-size: 20px; line-height: 1.6; font-family: 'Poppins', sans-serif; font-weight: 400; }
.testi-person { margin-top: 20px; font-size: 14px; color: var(--amber); font-weight: 700; }
.testi-role { color: #a9b8d1; font-size: 13px; font-weight: 400; }

.impact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.impact-card {
  background: var(--navy); color: #fff; border-radius: var(--radius-lg);
  padding: 30px 26px; text-align: left;
}
.impact-card .testi-quote { font-size: 15.5px; line-height: 1.55; }
.impact-card .testi-person { margin-top: 16px; font-size: 13.5px; }
.impact-card .testi-role { font-size: 12px; }
@media (max-width: 860px) { .impact-grid { grid-template-columns: 1fr; } }

/* ---------- Placeholder image blocks ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.img-placeholder {
  aspect-ratio: 4/3; border-radius: var(--radius-md);
  border: 1.5px dashed var(--border); background: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; color: var(--ink-soft); font-size: 12.5px; text-align: center; padding: 10px;
}
.img-placeholder svg { opacity: .5; }
@media (max-width: 860px) { .gallery-grid { grid-template-columns: repeat(2,1fr); } }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 4px; cursor: pointer; font-weight: 700; color: var(--navy); font-size: 15.5px;
}
.faq-q .chev { transition: transform .2s; flex-shrink: 0; color: var(--ink-soft); }
.faq-item.is-open .faq-q .chev { transform: rotate(180deg); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .25s ease;
  color: var(--ink-soft); font-size: 14.5px;
}
.faq-item.is-open .faq-a { max-height: 240px; }
.faq-a-inner { padding: 0 4px 20px; }

/* ---------- Final CTA ---------- */
.final-cta {
  background: linear-gradient(135deg, var(--navy), #0a1930);
  color: #fff; text-align: center; border-radius: var(--radius-lg);
  padding: 64px 32px; margin: 0 24px;
}
.final-cta h2 { color: #fff; }
.final-cta p { color: #c9d4e4; max-width: 560px; margin: 0 auto 28px; }

/* ---------- Footer ---------- */
.site-footer { background: #081627; color: #a9b8d1; padding: 56px 0 28px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-grid h4 { color: #fff; font-size: 14px; margin-bottom: 16px; }
.footer-grid a { display: block; color: #a9b8d1; margin-bottom: 10px; transition: color .15s; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { color: #8192ad; font-size: 13.5px; max-width: 300px; }
.footer-bottom {
  border-top: 1px solid #1c2e4a; padding-top: 24px; display: flex;
  justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 12.5px; color: #6d7f9c;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Donation Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(8,22,39,.6);
  display: none; align-items: center; justify-content: center; z-index: 200;
  padding: 20px; backdrop-filter: blur(3px);
}
.modal-overlay.is-open { display: flex; }
.modal-box {
  background: #fff; border-radius: var(--radius-lg); max-width: 440px; width: 100%;
  padding: 32px; box-shadow: var(--shadow-lg); max-height: 90vh; overflow-y: auto;
  position: relative;
}
.modal-close {
  position: absolute; top: 18px; right: 18px; background: none; border: none; cursor: pointer; color: var(--ink-soft);
}
.modal-box h3 { font-size: 22px; }
.modal-sub { color: var(--ink-soft); font-size: 14px; margin-bottom: 22px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 13px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.form-field input, .form-field select {
  width: 100%; padding: 11px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--border);
  font-size: 14.5px; font-family: inherit;
}
.form-field input:focus, .form-field select:focus { outline: none; border-color: var(--teal); }
.amount-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-bottom: 10px; }
.amount-chip {
  padding: 10px 6px; border-radius: var(--radius-sm); border: 1.5px solid var(--border);
  background: var(--cream); font-size: 13px; font-weight: 700; color: var(--navy-dim); cursor: pointer; text-align:center;
}
.amount-chip.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }
.modal-note { font-size: 12px; color: var(--ink-soft); margin-top: 14px; text-align: center; }
.certificate-preview {
  margin-top: 18px; border: 2px dashed var(--amber); border-radius: var(--radius-md);
  padding: 18px; text-align: center; background: #FFF3E9; display: none;
}
.certificate-preview.is-visible { display: block; }
.certificate-preview .cert-title { font-family: 'Poppins', sans-serif; font-weight: 700; color: var(--navy); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.certificate-preview .cert-name { font-family: 'Poppins', sans-serif; font-size: 20px; color: var(--amber-dark); margin: 8px 0 2px; }
.certificate-preview .cert-sub { font-size: 12.5px; color: var(--ink-soft); }
.thankyou-box { display: none; text-align: center; padding: 10px 0; }
.thankyou-box.is-visible { display: block; }
.thankyou-box .tick {
  width: 56px; height: 56px; border-radius: 50%; background: var(--teal-light); color: var(--teal);
  display: flex; align-items: center; justify-content: center; margin: 0 auto 16px;
}

/* Mobile nav drawer */
.mobile-drawer {
  position: fixed; inset: 0; background: rgba(8,22,39,.5); z-index: 150; display: none;
}
.mobile-drawer.is-open { display: block; }
.mobile-drawer-panel {
  position: absolute; top: 0; right: 0; width: 78%; max-width: 320px; height: 100%;
  background: #fff; padding: 28px 24px; display: flex; flex-direction: column; gap: 4px;
}
.mobile-drawer-panel a {
  padding: 14px 4px; border-bottom: 1px solid var(--border); font-weight: 700; color: var(--navy); font-size: 15px;
}
.mobile-drawer-close { align-self: flex-end; background: none; border: none; cursor: pointer; margin-bottom: 10px; }

.hide-until-js { opacity: 0; }