/* ===== EduraZ — Waitlist landing ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: "DM Sans", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: #0a0a0a;
  background-color: #fff;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: rgba(0, 0, 0, 0.12);
  color: #0a0a0a;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ===== Variables ===== */
:root {
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 5rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --max-width: 720px;
  --max-width-wide: 1000px;
  --max-width-narrow: 560px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration: 0.4s;
  --header-height: 64px;
}

/* ===== Reveal animation (JS adds .is-visible) ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration) var(--ease-out), transform var(--duration) var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.05s; }
.reveal-delay-2 { transition-delay: 0.1s; }
.reveal-delay-3 { transition-delay: 0.15s; }
.reveal-delay-4 { transition-delay: 0.2s; }
.reveal-delay-5 { transition-delay: 0.25s; }
.reveal-delay-6 { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .reveal-delay-1, .reveal-delay-2, .reveal-delay-3,
  .reveal-delay-4, .reveal-delay-5, .reveal-delay-6 {
    transition-delay: 0s;
  }
}

/* ===== Site header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) var(--space-lg);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease-out), border-color 0.35s var(--ease-out), padding 0.35s var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

.header-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.header-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header-link {
  font-size: 0.9375rem;
  color: #555;
  transition: color 0.2s ease;
}

.header-link:hover {
  color: #0a0a0a;
}

.header-link:focus-visible {
  outline: 2px solid #0a0a0a;
  outline-offset: 2px;
  border-radius: 2px;
}

.logo {
  font-family: "Plus Jakarta Sans", "DM Sans", sans-serif;
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: -0.02em;
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.7;
}

.logo:focus-visible {
  outline: 2px solid #0a0a0a;
  outline-offset: 2px;
  border-radius: 4px;
}

.header-cta {
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border: 1.5px solid #0a0a0a;
  border-radius: var(--radius-full);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s var(--ease-spring);
}

.header-cta:hover {
  background: #0a0a0a;
  color: #fff;
  transform: scale(1.03);
}

.header-cta:focus-visible {
  outline: 2px solid #0a0a0a;
  outline-offset: 2px;
}

/* ===== Section label ===== */
.section-label {
  margin: 0 0 var(--space-sm);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #666;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + var(--space-4xl)) var(--space-lg) var(--space-5xl);
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 90% 55% at 50% 0%, rgba(0, 0, 0, 0.04) 0%, transparent 50%);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 40%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 40%, black 0%, transparent 70%);
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg::after {
    animation: none;
    opacity: 0.7;
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.hero-label {
  margin: 0 0 var(--space-md);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #666;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-headline {
  font-family: "Plus Jakarta Sans", "DM Sans", sans-serif;
  margin: 0 0 var(--space-lg);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-subheadline {
  margin: 0 0 var(--space-xl);
  font-size: 1.1875rem;
  line-height: 1.55;
  color: #404040;
  font-weight: 400;
  max-width: 40ch;
  margin-left: auto;
  margin-right: auto;
}

/* ===== CTA button + ripple ===== */
.cta-wrap {
  position: relative;
  display: inline-block;
}

.cta-button {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: #fff;
  background-color: #0a0a0a;
  border: 2px solid #0a0a0a;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), transform 0.25s var(--ease-spring), box-shadow 0.25s var(--ease-out);
}

.cta-button:hover {
  color: #0a0a0a;
  background-color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14);
}

.cta-button:focus {
  outline: none;
}
.cta-button:focus-visible {
  outline: 2px solid #0a0a0a;
  outline-offset: 3px;
}

.cta-button--primary {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
  min-height: 56px;
}

/* Ripple effect container */
.cta-button .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: scale(0);
  animation: ripple 0.6s var(--ease-out);
  pointer-events: none;
}

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== Benefits ===== */
.benefits {
  padding: var(--space-5xl) var(--space-lg);
  background: linear-gradient(180deg, #fafafa 0%, #f4f4f4 100%);
}

.benefits-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.benefits-title {
  margin: 0 0 var(--space-2xl);
  font-family: "Plus Jakarta Sans", "DM Sans", sans-serif;
  font-size: clamp(1.5rem, 3.2vw, 2.125rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.025em;
  line-height: 1.3;
  max-width: 28ch;
  margin-left: auto;
  margin-right: auto;
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }
}

.benefit-card {
  padding: var(--space-xl);
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  transition: transform 0.35s var(--ease-out), border-color 0.3s ease, box-shadow 0.35s var(--ease-out);
}

.benefit-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.1);
}

.benefit-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--space-md);
  background: #0a0a0a;
  color: #fff;
  border-radius: var(--radius-md);
  transition: transform 0.3s var(--ease-spring);
}

.benefit-card:hover .benefit-card-icon {
  transform: scale(1.08);
}

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

.benefit-card-title {
  margin: 0 0 var(--space-sm);
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.3;
}

.benefit-card-desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #444;
}

/* ===== Waitlist (submissions sent to Formspark via fetch) ===== */
.waitlist-section {
  position: relative;
  padding: var(--space-5xl) var(--space-lg);
  background: linear-gradient(180deg, #f2f2f2 0%, #ebebeb 100%);
}

.waitlist-inner {
  max-width: 600px;
  margin: 0 auto;
}

.waitlist-heading {
  margin: 0 0 var(--space-sm);
  font-family: "Plus Jakarta Sans", "DM Sans", sans-serif;
  font-size: clamp(1.5rem, 2.5vw, 1.75rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.02em;
}

.waitlist-intro {
  margin: 0 0 var(--space-xl);
  font-size: 1.0625rem;
  text-align: center;
  color: #555;
  max-width: 38ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}

/* Form card container */
.waitlist-form-box {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: 0 2px 0 0 #0a0a0a, 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.3s var(--ease-out);
}

.waitlist-form-box:hover {
  box-shadow: 0 2px 0 0 #0a0a0a, 0 8px 32px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-xl);
}

.waitlist-fields {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.waitlist-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.waitlist-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #0a0a0a;
  letter-spacing: -0.01em;
}

.waitlist-label .required {
  color: #888;
  font-weight: 500;
}

.waitlist-input {
  width: 100%;
  padding: 1rem 1.125rem;
  font-size: 1rem;
  font-family: inherit;
  color: #0a0a0a;
  background: #fafafa;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.waitlist-input::placeholder {
  color: #999;
}

.waitlist-input:hover {
  border-color: rgba(0, 0, 0, 0.2);
  background: #fff;
}

.waitlist-input:focus {
  outline: none;
  border-color: #0a0a0a;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.waitlist-input:focus-visible {
  outline: none;
}

.waitlist-submit {
  cursor: pointer;
  border: none;
  width: 100%;
  margin-top: var(--space-xs);
}

.waitlist-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.waitlist-error {
  margin: 0;
  font-size: 0.875rem;
  color: #b91c1c;
  text-align: center;
}

/* Success state inside same card */
.waitlist-success {
  text-align: center;
  padding: var(--space-lg) 0 0;
}

.waitlist-success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  background: #0a0a0a;
  color: #fff;
  border-radius: 50%;
}

.waitlist-success-icon svg {
  width: 32px;
  height: 32px;
}

.waitlist-success-title {
  margin: 0 0 var(--space-sm);
  font-family: "Plus Jakarta Sans", "DM Sans", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.waitlist-success-text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: #444;
}

/* ===== About (tagline above footer) ===== */
.about {
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  background: #fff;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.about-text {
  margin: 0;
  font-size: 0.8125rem;
  color: #888;
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* ===== Footer ===== */
.site-footer {
  background: #fff;
  color: #1a1a1a;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding: var(--space-md) 0 var(--space-lg);
}

.footer-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer-logo {
  font-family: "Plus Jakarta Sans", "DM Sans", sans-serif;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  color: #0a0a0a;
  transition: opacity 0.2s ease;
}

.footer-logo:hover {
  opacity: 0.7;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.footer-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #555;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: #0a0a0a;
}

.footer-link:focus-visible {
  outline: 2px solid #0a0a0a;
  outline-offset: 2px;
  border-radius: 2px;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: #666;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}

.footer-social-link:hover {
  color: #0a0a0a;
  background: #f0f0f0;
}

.footer-social-link:focus-visible {
  outline: 2px solid #0a0a0a;
  outline-offset: 2px;
}

.footer-copy {
  margin: 0;
  font-size: 0.75rem;
  color: #888;
  letter-spacing: 0.01em;
}

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .waitlist-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
  .waitlist-field--full {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  .hero {
    padding: calc(var(--header-height) + var(--space-5xl)) var(--space-2xl) var(--space-5xl);
  }

  .benefits,
  .waitlist-section {
    padding: var(--space-5xl) var(--space-2xl);
  }

  .about {
    padding: var(--space-md) var(--space-2xl);
  }

  .footer-inner {
    padding: 0 var(--space-2xl);
  }
}

/* Touch targets on mobile */
@media (max-width: 639px) {
  .header-cta {
    min-height: 44px;
    padding: 0.625rem 1.25rem;
  }
  .footer-social-link {
    min-width: 44px;
    min-height: 44px;
  }
}