/* ===================================================================
   ComplyHub Landing Page - style.css
   =================================================================== */

:root {
  --bg: #070d1f;
  --bg-soft: #0b1430;
  --bg-card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.09);
  --text: #e8ecf8;
  --text-muted: #a7b0c8;
  --brand-accent: linear-gradient(100deg, hsl(207, 95%, 50%), hsl(212, 90%, 50%));
  --cyan: #38bdf8;
  --gradient: linear-gradient(100deg, hsl(252, 89%, 23%) 0%, hsl(258, 100%, 20%) 100%);
  --radius: 16px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --shadow-btn: 0 8px 24px rgba(25, 15, 130, 0.5);
  --shadow-btn-hover: 0 12px 32px rgba(25, 15, 130, 0.65);
  --header-h: 72px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
    text-wrap: balance;
    line-height: 1.2;
}

p {
  text-wrap: pretty;
}

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

a {
  color: var(--cyan);
  text-decoration: none;
}

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

.container.narrow {
  width: min(820px, 92%);
}
.container.very-narrow {
  width: min(610px, 92%);
}

section[id],
main[id] {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.text-gradient {
  background: var(--brand-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===================== Buttons ===================== */

/* Όλη η εμφάνιση των χρωματιστών κουμπιών σε έναν κανόνα -
   το μέγεθος ορίζεται χωριστά στα .btn-sm / .btn-lg */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: inherit;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  border-radius: 999px;
  border: 1px solid hsl(256, 70%, 26%);
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-btn);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn-hover);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.btn:hover svg {
  transform: translateX(4px);
}

/* Δευτερεύον (διάφανο) κουμπί: διαφοροποιεί μόνο τα χρώματα */
.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text);
  box-shadow: none;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.32);
  box-shadow: none;
}

/* Μεγέθη κουμπιών */
.btn-sm {
  padding: 9px 20px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.05rem;
}

/* ===================== Header ===================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  padding-inline: 2vw;
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(7, 13, 31, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand-accent {
  background: var(--brand-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav > a:not(.btn) {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.main-nav > a:not(.btn):hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.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 {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 13, 31, 0.55) 0%, rgba(7, 13, 31, 0.75) 65%, var(--bg) 100%),
    url("background.jpg") center / cover no-repeat;
  z-index: -1;
}

.hero-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: 240px;
  height: auto;
  margin-bottom: 2vh;
  filter: drop-shadow(0 12px 40px rgba(94, 92, 245, 0.45));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-title {
  font-size: clamp(2.1rem, 5.2vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}

.hero-subtitle {
  max-width: 680px;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: var(--text-muted);
  margin-bottom: 38px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.hero-note {
  margin-top: 34px;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.85;
}

/* ===================== Sections ===================== */

.section {
  padding: 96px 0;
}

.section.intro {
  padding-top: 24px;
}

.section-eyebrow {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}

.section-title {
  text-align: center;
  font-size: clamp(1.65rem, 3.4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-lead {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 26px;
  color: var(--text-muted);
  font-size: 1.08rem;
}

/* ===================== Feature cards ===================== */

.cards-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(124, 77, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(79, 109, 245, 0.2), rgba(124, 77, 255, 0.2));
  border: 1px solid rgba(124, 109, 255, 0.3);
  color: #8ea4ff;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ===================== Frameworks ===================== */

.frameworks {
  background:
    radial-gradient(ellipse 70% 90% at 50% 0%, rgba(79, 109, 245, 0.1), transparent 70%),
    var(--bg-soft);
  border-block: 1px solid var(--border);
}

.frameworks-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.framework-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 28px;
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.framework-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: var(--shadow);
}

.framework-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 18px;
}

.framework-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.framework-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.framework-card--more {
  border-style: dashed;
}

/* ===================== Benefits ===================== */

.benefits-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 40px;
}

.benefit {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.benefit-check {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-btn);
  margin-top: 3px;
}

.benefit-check svg {
  width: 20px;
  height: 20px;
}

.benefit h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.benefit p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ===================== CTA ===================== */

.cta {
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(124, 77, 255, 0.18), transparent 70%),
    radial-gradient(ellipse 50% 60% at 50% 0%, rgba(56, 189, 248, 0.08), transparent 70%);
  z-index: -1;
}

.cta-inner {
  text-align: center;
}

.cta .hero-actions {
  margin-top: 14px;
}

.cta-note {
  margin-top: 30px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.cta-note a {
  font-weight: 600;
}

.cta-note a:hover {
  text-decoration: underline;
}

/* ===================== Footer ===================== */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding-top: 56px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-inner > * {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.footer-inner > * > *:first-child {
    height: 2rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 320px;
}

.footer-nav,
.footer-company {
  text-align: right;
}

.footer-nav h4,
.footer-company h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer-nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--text);
}

.footer-cs {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 600;
}

.footer-cs img {
  width: 44px;
  height: auto;
}

.footer-cs:hover span {
  color: var(--cyan);
}

.footer-contact-link {
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.footer-contact-link:hover {
  color: var(--cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ===================== Reveal animations ===================== */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-logo {
    animation: none;
  }
}

/* ===================== Responsive ===================== */

@media (max-width: 960px) {
  .cards-grid,
  .frameworks-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1000px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(7, 13, 31, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 16px 5%;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav > a:not(.btn) {
    padding: 12px 6px;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav-cta {
    margin-top: 12px;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .cards-grid,
  .frameworks-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .section {
    padding: 72px 0;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-logo {
    width: 104px;
  }
}