/* ===========================================================
   SpinePay – static rebuild
   =========================================================== */

:root {
  --color-primary: #ff5e3a;        /* accent / CTA */
  --color-primary-2: #ff2a68;      /* gradient end */
  --color-text: #2b2b2b;
  --color-muted: #6f7378;
  --color-light: #f4f6f9;
  --color-bg-cta: #1f2330;         /* dark CTA */
  --color-footer: #1a1d27;
  --color-border: #e6e9ee;
  --container: 1180px;
  --radius: 6px;
  --transition: .25s ease;
  --font: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 300;
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background: #fff;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }

.container {
  width: 100%;
  max-width: var(--container);
  padding: 0 24px;
  margin: 0 auto;
}

h1, h2, h3, h4 { font-weight: 700; margin: 0 0 .6em; line-height: 1.2; }
h1 { font-size: clamp(2rem, 4vw + 1rem, 3.4rem); }
h2 { font-size: clamp(1.7rem, 2vw + 1rem, 2.6rem); }
h3 { font-size: 1.15rem; }
.thin { font-weight: 200; }

.eyebrow {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 .8rem;
}
.eyebrow-light { color: rgba(255,255,255,.85); }

.section-title.center { text-align: center; margin: 0 auto 60px; max-width: 720px; }
.section-sub { color: var(--color-muted); font-weight: 300; margin: 0; }

/* =========================
   Buttons
   ========================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--radius);
  border: 0;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2));
  color: #fff;
  box-shadow: 0 8px 22px rgba(255,94,58,.32);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255,94,58,.42);
  color: #fff;
}

.btn-link {
  padding: 14px 8px;
  color: var(--color-muted);
  text-transform: none;
  letter-spacing: 0;
  font-size: .95rem;
  font-weight: 500;
}
.btn-link .chev { transition: transform var(--transition); display: inline-block; }
.btn-link:hover { color: var(--color-primary); }
.btn-link:hover .chev { transform: translateX(4px); }
.btn-link-light { color: rgba(255,255,255,.85); }
.btn-link-light:hover { color: #fff; }

.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin-top: 24px; }

/* =========================
   Navigation
   ========================= */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.logo { height: 42px; width: auto; }

.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 36px;
}
.nav-menu a {
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--color-text);
}
.nav-menu a:hover { color: var(--color-primary); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 38px;
  height: 38px;
  padding: 0;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px auto;
  transition: var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================
   Hero
   ========================= */
.hero {
  background: linear-gradient(180deg, #fafbfd 0%, #fff 70%);
  padding: 80px 0 60px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-copy { position: relative; z-index: 2; }
.hero-copy h1 { letter-spacing: -.01em; }

.hero-art {
  position: relative;
  z-index: 1;
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: -10% -10% -10% -5%;
  background: url("assets/waves-header.png") center/contain no-repeat;
  z-index: -1;
  pointer-events: none;
}
.hero-art img { width: 100%; max-width: 560px; margin-left: auto; position: relative; }

/* =========================
   How It Works
   ========================= */
.how {
  padding: 90px 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.step { text-align: center; }
.step-num {
  width: 70px;
  height: 70px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
  color: #fff;
  font-weight: 700;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h3 { margin-top: 6px; font-weight: 700; }
.step p { color: var(--color-muted); font-size: .95rem; }

.pulse {
  position: relative;
}
.pulse::before,
.pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: .4;
  animation: pulse 3s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
  animation-delay: var(--delay, 0s);
  z-index: -1;
}
.pulse::after { animation-delay: calc(var(--delay, 0s) + 1.5s); }
@keyframes pulse {
  0%   { transform: scale(1);   opacity: .4; }
  100% { transform: scale(2.1); opacity: 0;  }
}

/* =========================
   Call to Action
   ========================= */
.cta {
  background: url("assets/waves-cta.jpg") center/cover no-repeat, var(--color-bg-cta);
  background-blend-mode: multiply;
  color: #fff;
  padding: 90px 0;
}
.cta-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 40px;
  align-items: center;
}
.cta-title { color: #fff; margin-bottom: .5em; }
.cta-sub { color: rgba(255,255,255,.8); margin: 0; }
.cta-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; justify-content: flex-start; }

/* =========================
   About
   ========================= */
.about { padding: 90px 0; }
.about-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 60px;
  align-items: center;
}
.about-copy p { color: var(--color-muted); }

/* =========================
   Contact
   ========================= */
.contact { padding: 30px 0 100px; }

.contact-form {
  max-width: 900px;
  margin: 0 auto;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}
.contact-form input,
.contact-form textarea {
  font-family: inherit;
  font-size: 1rem;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-light);
  color: var(--color-text);
  transition: border-color var(--transition), background var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
}
.contact-form textarea { resize: vertical; min-height: 160px; margin-bottom: 18px; }

.btn-send { padding: 14px 36px; }
.paper-plane {
  width: 16px; height: 16px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M2 21l21-9L2 3v7l15 2-15 2z'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M2 21l21-9L2 3v7l15 2-15 2z'/></svg>") center/contain no-repeat;
}

.form-status { margin: 16px 0 0; font-size: .9rem; min-height: 1.2em; }
.form-status.ok { color: #1a8a3e; }
.form-status.err { color: #c0392b; }

/* =========================
   Footer
   ========================= */
.site-footer {
  background: var(--color-footer);
  color: rgba(255,255,255,.78);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 40px;
  align-items: start;
  padding-bottom: 50px;
}
.brand-mark {
  display: inline-block;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2));
  color: #fff;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 14px 24px;
  border-radius: var(--radius);
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.footer-col h4 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: #fff;
  margin: 0 0 14px;
}
.footer-col p { margin: 0 0 .5em; font-size: .92rem; color: rgba(255,255,255,.72); }
.footer-col a { color: #fff; }
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
}
.footer-bottom p {
  margin: 0;
  font-size: .82rem;
  color: rgba(255,255,255,.55);
}

/* =========================
   Float animation (used by hero & about images)
   ========================= */
.float { animation: float 6s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

/* =========================
   Responsive
   ========================= */
@media (max-width: 960px) {
  .hero-grid,
  .about-grid,
  .cta-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-art { order: -1; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 8px 0;
  }
  .site-nav { position: relative; }
  .nav-menu.open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a {
    display: block;
    padding: 14px 24px;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-menu li:last-child a { border-bottom: 0; }

  .hero { padding: 50px 0; }
  .form-row { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .float, .pulse::before, .pulse::after { animation: none; }
  html { scroll-behavior: auto; }
}