/* ============================================================
   BonDeFi — style.css
   Indigo Fintech / Institutional Theme
   ============================================================ */

/* ── Custom Properties ──────────────────────────────────────── */
:root {
  --primary:       #4f46e5;
  --primary-dark:  #312e81;
  --primary-light: #e0e7ff;
  --primary-hover: #6366f1;
  --accent:        #818cf8;
  --text:          #1e293b;
  --text-muted:    #64748b;
  --border:        #e2e8f0;
  --bg:            #f8fafc;
  --white:         #ffffff;
  --shadow:        0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.08);
  --radius:        9999px;
  --radius-card:   12px;
  --max-w:         1100px;
  --nav-h:         72px;
}

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

html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', 'Open Sans', Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
table { border-collapse: collapse; }

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { color: var(--text-muted); line-height: 1.75; }

.lead {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text);
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  transition: background 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(79,70,229,0.3);
}
.btn--primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 16px rgba(79,70,229,0.4);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.7);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}

.btn--outline-indigo {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn--outline-indigo:hover {
  background: var(--primary-light);
}

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: box-shadow 0.2s;
}
.nav--scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav__logo img {
  height: 44px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.nav__links a {
  display: block;
  padding: 0.45rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}
.nav__links a:hover,
.nav__links a.active {
  color: var(--primary);
  background: var(--primary-light);
}
.nav__links li:last-child a {
  background: var(--primary);
  color: var(--white);
  padding: 0.45rem 1.1rem;
}
.nav__links li:last-child a:hover {
  background: var(--primary-hover);
}

.nav__toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text);
  padding: 0.4rem;
  line-height: 1;
}

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--primary-hover) 100%);
  color: var(--white);
  text-align: center;
  padding: 6rem 1.25rem 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner { position: relative; z-index: 1; max-width: 800px; margin-inline: auto; }

.hero h1 {
  color: var(--white);
  margin-bottom: 0.75rem;
}
.hero .hero__sub {
  font-size: 1.3rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 0.5rem;
}
.hero .hero__sub2 {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 2.25rem;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: 2.25rem;
}
.hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Stats Bar ───────────────────────────────────────────────── */
.stats-bar {
  background: var(--primary);
  color: var(--white);
  padding: 2rem 1.25rem;
}
.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
}
.stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.stat__label {
  font-size: 0.8rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Sections ────────────────────────────────────────────────── */
.section {
  padding: 5rem 1.25rem;
  background: var(--white);
}
.section--alt {
  background: var(--bg);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 3rem;
}
.section__header h2 { margin-bottom: 0.75rem; }
.section__header p  { font-size: 1.05rem; }

/* ── Split Layout ────────────────────────────────────────────── */
.section__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.section__split--reverse { direction: rtl; }
.section__split--reverse > * { direction: ltr; }

.split__text h2 { margin-bottom: 1rem; }
.split__text p  { font-size: 1.05rem; margin-bottom: 1.25rem; }
.split__text p:last-child { margin-bottom: 0; }

.split__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.split__visual img,
.split__visual svg {
  width: 100%;
  max-width: 360px;
}
.split__visual--large img,
.split__visual--large svg {
  max-width: 160px;
}

/* ── Services Grid ───────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.card__icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1.25rem;
}
.card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.6rem;
}
.card__body {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Tech Cards (about page) ─────────────────────────────────── */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.tech-card {
  background: var(--primary-light);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  text-align: center;
}
.tech-card h4 {
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}
.tech-card p {
  font-size: 0.9rem;
  color: var(--primary);
}

/* ── Bond Table ──────────────────────────────────────────────── */
.bond-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
}
.bond-table {
  width: 100%;
  font-size: 0.95rem;
}
.bond-table thead tr {
  background: var(--primary);
  color: var(--white);
}
.bond-table thead th {
  padding: 1rem 1.25rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.bond-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.bond-table tbody tr:last-child { border-bottom: none; }
.bond-table tbody tr:hover { background: var(--primary-light); }
.bond-table tbody td {
  padding: 0.9rem 1.25rem;
  color: var(--text);
}
.bond-table tbody td:nth-child(2) {
  font-weight: 700;
  color: var(--primary);
}
.bond-table .check {
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 700;
}

.table-note {
  margin-top: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── CTA Block ───────────────────────────────────────────────── */
.cta-block {
  background: var(--primary-light);
  padding: 4.5rem 1.25rem;
  text-align: center;
}
.cta-block__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.cta-block h3 {
  color: var(--primary-dark);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 2rem;
}

/* ── Founder / Split Card Section ───────────────────────────── */
.founder-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 200px;
}
.founder-card__name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 0.4rem;
}
.founder-card__tagline {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}

/* ── Page Header ─────────────────────────────────────────────── */
.page-header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  padding: 4rem 1.25rem 3.5rem;
  text-align: center;
}
.page-header h1 {
  color: var(--white);
  margin-bottom: 0.6rem;
}
.page-header p {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  max-width: 540px;
  margin-inline: auto;
}

/* ── Global Reach Stats ──────────────────────────────────────── */
.reach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  text-align: center;
}
.reach-item__value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
  margin-bottom: 0.3rem;
}
.reach-item__label {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ── Contact Form ────────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-radius: var(--radius-card);
  padding: 2rem;
  color: var(--white);
}
.contact-info-card h3 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}
.contact-info-item {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}
.contact-info-item__icon {
  width: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  opacity: 0.85;
}
.contact-info-item__text {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.6;
}
.contact-info-item__text a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.contact-info-item__text a:hover {
  color: var(--white);
}

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}
.contact-form-card h3 {
  margin-bottom: 1.75rem;
  font-size: 1.3rem;
}

.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 140px;
}
.form-group .optional {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
}

.form-submit { margin-top: 0.5rem; }

.alert {
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.6;
}
.alert--success {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  color: #065f46;
}
.alert--error {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}
.alert ul { padding-left: 1.25rem; list-style: disc; margin-top: 0.4rem; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 3.5rem 1.25rem 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer__col-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer__links a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  transition: color 0.15s;
}
.footer__links a:hover { color: var(--white); }

.footer__contact-item {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.65;
  margin-bottom: 0.6rem;
}
.footer__contact-item a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer__contact-item a:hover { color: var(--white); }

.footer__disclaimer {
  padding: 1.75rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}

.footer__bottom {
  padding: 1.25rem 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
  .section__split,
  .section__split--reverse {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    direction: ltr;
  }
  .section__split--reverse > * { direction: ltr; }
  .stats-bar__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .tech-grid {
    grid-template-columns: 1fr 1fr;
  }
  .reach-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .nav__toggle { display: block; }
  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 0;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a {
    border-radius: 0;
    padding: 0.85rem 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav__links li:last-child a {
    border-radius: 0;
  }

  .hero { padding: 4rem 1.25rem 3.5rem; }
  .hero__cta { flex-direction: column; align-items: center; }

  .services-grid { grid-template-columns: 1fr; }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: 1fr; }
  .reach-grid { grid-template-columns: 1fr; }

  .section { padding: 3.5rem 1.25rem; }
  .contact-form-card { padding: 1.5rem; }
}