/* =========================================================
   YEIX — Landing page styles
   Mobile-first, dark/blue tech-forward theme.
   ========================================================= */

:root {
  --color-bg: #0b1220;
  --color-bg-alt: #101a2c;
  --color-surface: #14203a;
  --color-surface-alt: #1a2a4a;
  --color-border: #24365a;
  --color-primary: #2f7bff;
  --color-primary-dark: #1f5fd6;
  --color-accent: #25d366; /* WhatsApp green */
  --color-text: #eef2fb;
  --color-text-muted: #a9b6d1;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --max-width: 1140px;
  --nav-panel-width: 70%; /* how wide the mobile off-canvas nav panel is */
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.35);
  --font-base: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

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

.section-eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.3rem);
  margin: 0 0 0.75rem;
}

.section-subtitle {
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  font-size: 1rem;
}

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

.btn-primary {
  background-color: var(--color-accent);
  color: #06210f;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: #1fb857;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface-alt);
}

.btn-block {
  width: 100%;
}

.btn[aria-disabled="true"],
.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------- Setup banner (only shown while WhatsApp isn't configured) ---------- */
.config-banner {
  background-color: #7a1f1f;
  color: #ffe9e9;
  text-align: center;
  font-size: 0.85rem;
  padding: 0.65rem 1rem;
}

.config-banner code {
  background-color: rgba(0, 0, 0, 0.25);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 18, 32, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.brand__logo {
  width: 136px;
  height: 47px;
  object-fit: cover;
  border-radius: 6px;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle__bar {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
}

.main-nav {
  position: fixed;
  /* Off-canvas panel width is controlled by --nav-panel-width. */
  inset: 0 0 0 calc(100% - var(--nav-panel-width));
  top: 68px;
  background-color: var(--color-bg-alt);
  border-left: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}

.main-nav.is-open {
  transform: translateX(0);
}

.main-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.main-nav__link {
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text);
}

.main-nav__cta {
  margin-top: auto;
}

/* ---------- Hero ---------- */
.hero {
  padding-block: 4rem 3.5rem;
  background: radial-gradient(circle at 20% 0%, rgba(47, 123, 255, 0.25), transparent 55%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero__inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero__eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.hero__title {
  font-size: clamp(2rem, 1.5rem + 2.2vw, 3.2rem);
  margin: 0.75rem 0 1rem;
  line-height: 1.15;
}

.hero__title span {
  color: var(--color-accent);
}

.hero__text {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__art {
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.hero__art-logo {
  width: min(100%, 360px);
  height: auto;
  border-radius: var(--radius-md);
  margin-inline: auto;
}

.hero__art-tagline {
  text-align: center;
  color: var(--color-text-muted);
  margin-top: 1rem;
  font-style: italic;
}

/* ---------- Services ---------- */
.services {
  padding-block: 4rem;
}

.services__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background-color: rgba(47, 123, 255, 0.15);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.service-card__text {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- Benefits ---------- */
.benefits {
  padding-block: 4rem;
  background-color: var(--color-bg-alt);
  border-block: 1px solid var(--color-border);
}

.benefits__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.benefit {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.benefit__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(37, 211, 102, 0.15);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.benefit__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.benefit__text {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* ---------- Testimonial ---------- */
.testimonial {
  padding-block: 4rem;
}

.testimonial__card {
  max-width: 760px;
  margin-inline: auto;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
}

.testimonial__quote {
  font-size: 1.15rem;
  font-style: italic;
  margin: 0 0 1.25rem;
}

.testimonial__author {
  color: var(--color-text-muted);
  font-weight: 600;
}

/* ---------- Contact / CTA ---------- */
.contact {
  padding-block: 4rem;
  background: linear-gradient(135deg, rgba(47, 123, 255, 0.18), rgba(37, 211, 102, 0.12));
  border-top: 1px solid var(--color-border);
}

.contact__card {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact__note {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.site-footer__logo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
}

/* ---------- WhatsApp floating button ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #06210f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: transform 0.15s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1000;
  width: auto;
  height: auto;
  padding: 0.75rem 1.25rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background-color: var(--color-accent);
  color: #06210f;
  font-weight: 700;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .hero__actions {
    flex-wrap: nowrap;
  }
}

@media (min-width: 860px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    inset: auto;
    transform: none;
    flex-direction: row;
    align-items: center;
    background: none;
    border: none;
    padding: 0;
    gap: 2rem;
  }

  .main-nav__list {
    flex-direction: row;
    gap: 1.75rem;
  }

  .main-nav__cta {
    margin-top: 0;
  }

  .hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
  }
}