/* ═══════════════════════════════════════════════════
   Regestio — Landing Page
   Aesthetic: Refined green tones inspired by UniTre,
   deep forest base, emerald accents, serif display type
   ═══════════════════════════════════════════════════ */

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

:root {
  --navy:       #0e1f16;
  --navy-light: #162b1f;
  --navy-mid:   #1e3a28;
  --slate:      #7a9486;
  --cream:      #f4f7f2;
  --cream-dark: #dfe8da;
  --amber:      #2e8b57;
  --amber-light:#4db87a;
  --amber-glow: rgba(46, 139, 87, .12);
  --white:      #ffffff;
  --text:       #1e2e24;
  --text-light: #4a6355;
  --radius:     12px;
  --radius-lg:  20px;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'Plus Jakarta Sans', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ── Typography ── */
.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--amber);
  margin-bottom: .75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.2;
  color: var(--navy);
}
.section-title em {
  font-style: italic;
  color: var(--amber);
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 560px;
  margin-top: .75rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  padding: .85rem 1.8rem;
  border-radius: 60px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
}

.btn--primary {
  background: var(--amber);
  color: var(--white);
  border-color: var(--amber);
}
.btn--primary:hover {
  background: #24734a;
  border-color: #24734a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(46, 139, 87, .3);
}

.btn--ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy-mid);
}
.btn--ghost:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
  transform: translateY(-2px);
}

.btn--lg { padding: 1rem 2.2rem; font-size: 1.05rem; }

/* ═══════════ NAV ═══════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: all .3s ease;
}
.nav--scrolled {
  background: rgba(15, 23, 41, .92);
  backdrop-filter: blur(16px);
  box-shadow: 0 2px 24px rgba(0,0,0,.15);
}

.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: .95rem;
  color: var(--white);
}
.nav__logo-icon {
  width: 36px; height: 36px;
  background: var(--amber);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
}
.nav__logo-text { letter-spacing: -.02em; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__links a {
  font-size: .875rem;
  font-weight: 500;
  color: rgba(255,255,255,.7);
  transition: color .2s;
}
.nav__links a:hover { color: var(--white); }

.nav__cta {
  background: var(--amber) !important;
  color: var(--white) !important;
  padding: .55rem 1.4rem !important;
  border-radius: 60px;
  font-weight: 600 !important;
}
.nav__cta:hover {
  background: #24734a !important;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: .3s;
}

/* ═══════════ HERO ═══════════ */
.hero {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: 10rem 2rem 6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  max-width: 100vw;
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 80%);
}

.hero__content {
  max-width: 580px;
  position: relative;
  z-index: 2;
}

.hero__badge {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--amber);
  background: var(--amber-glow);
  padding: .45rem 1rem;
  border-radius: 60px;
  border: 1px solid rgba(46, 139, 87, .25);
  margin-bottom: 1.5rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -.02em;
}
.hero__title em {
  font-style: italic;
  color: var(--amber-light);
}

.hero__sub {
  margin-top: 1.25rem;
  font-size: 1.1rem;
  line-height: 1.7;
  color: rgba(255,255,255,.7);
  max-width: 500px;
}

.hero__actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero__actions .btn--ghost {
  color: rgba(255,255,255,.8);
  border-color: rgba(255,255,255,.2);
}
.hero__actions .btn--ghost:hover {
  background: rgba(255,255,255,.1);
  color: var(--white);
  border-color: rgba(255,255,255,.35);
}

.hero__proof {
  margin-top: 2rem;
  font-size: .82rem;
  color: rgba(255,255,255,.5);
}

/* Hero visual cards */
.hero__visual {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 300px;
}

.hero__card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(8px);
  animation: cardSlideIn .8s ease forwards;
  opacity: 0;
  transform: translateX(30px);
}
.hero__card--1 { animation-delay: .3s; }
.hero__card--2 { animation-delay: .5s; }
.hero__card--3 { animation-delay: .7s; }

@keyframes cardSlideIn {
  to { opacity: 1; transform: translateX(0); }
}

.hero__card-icon { font-size: 1.5rem; }
.hero__card-label {
  font-size: .9rem;
  font-weight: 600;
  flex: 1;
}
.hero__card-bar {
  width: 80px;
  height: 6px;
  background: rgba(255,255,255,.08);
  border-radius: 3px;
  overflow: hidden;
}
.hero__card-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--amber), var(--amber-light));
  border-radius: 3px;
}

/* ═══════════ PROOF BAR ═══════════ */
.proof-bar {
  background: var(--white);
  border-bottom: 1px solid var(--cream-dark);
}
.proof-bar__inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 2rem;
  flex-wrap: wrap;
}
.proof-bar__item {
  text-align: center;
}
.proof-bar__item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--navy);
}
.proof-bar__item span {
  font-size: .82rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.proof-bar__sep {
  width: 1px;
  height: 40px;
  background: var(--cream-dark);
}

/* ═══════════ FEATURES ═══════════ */
.features {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.features__header {
  margin-bottom: 3.5rem;
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--amber-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.feature-card:hover {
  border-color: rgba(46, 139, 87, .2);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.06);
}
.feature-card:hover::before { transform: scaleX(1); }

.feature-card__icon {
  width: 48px; height: 48px;
  background: var(--amber-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--amber);
}
.feature-card__icon svg { width: 24px; height: 24px; }

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: .6rem;
}
.feature-card p {
  font-size: .9rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ═══════════ APP MOBILE ═══════════ */
.app-mobile {
  background: var(--white);
  padding: 6rem 2rem;
}
.app-mobile__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.app-mobile__text p {
  margin-top: 1rem;
  color: var(--text-light);
  line-height: 1.75;
}
.app-mobile__list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.app-mobile__list li {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .95rem;
  color: var(--text);
}
.app-mobile__list svg {
  flex-shrink: 0;
  color: var(--amber);
}

/* Phone mockup */
.app-mobile__visual {
  display: flex;
  justify-content: center;
}
.app-mobile__phone {
  width: 280px;
  background: var(--navy);
  border-radius: 32px;
  padding: 12px;
  box-shadow: 0 24px 60px rgba(0,0,0,.15), 0 0 0 1px rgba(0,0,0,.05);
}
.app-mobile__phone-notch {
  width: 100px;
  height: 6px;
  background: rgba(255,255,255,.15);
  border-radius: 3px;
  margin: 8px auto 16px;
}
.app-mobile__phone-screen {
  background: var(--cream);
  border-radius: 22px;
  padding: 1.5rem 1.25rem;
  min-height: 320px;
}
.app-mobile__phone-header {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 1.25rem;
}
.app-mobile__phone-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem;
  background: var(--white);
  border-radius: 12px;
  margin-bottom: .6rem;
  border: 1px solid var(--cream-dark);
}
.app-mobile__phone-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.app-mobile__phone-course {
  font-size: .82rem;
  font-weight: 600;
  color: var(--navy);
}
.app-mobile__phone-time {
  font-size: .7rem;
  color: var(--text-light);
  margin-top: 2px;
}
.app-mobile__phone-badge {
  margin-left: auto;
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  background: rgba(46, 139, 87, .12);
  color: var(--amber);
  padding: .25rem .5rem;
  border-radius: 20px;
  white-space: nowrap;
}
.app-mobile__phone-badge--pending {
  background: rgba(200, 160, 50, .12);
  color: #b8860b;
}

@media (max-width: 768px) {
  .app-mobile__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .app-mobile__visual {
    order: -1;
  }
  .app-mobile__phone {
    width: 240px;
  }
}

/* ═══════════ BENEFITS ═══════════ */
.benefits {
  background: var(--navy);
  color: var(--white);
  padding: 6rem 2rem;
}
.benefits__header {
  max-width: 1200px;
  margin: 0 auto 3.5rem;
}
.benefits__header .section-title { color: var(--white); }
.benefits__header .section-title em { color: var(--amber-light); }

.benefits__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.benefit {
  padding: 2rem;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.02);
  transition: all .3s ease;
}
.benefit:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(46, 139, 87, .2);
}

.benefit__number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--amber);
  opacity: .35;
  line-height: 1;
  margin-bottom: .75rem;
}
.benefit h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: .5rem;
}
.benefit p {
  font-size: .9rem;
  color: rgba(255,255,255,.65);
  line-height: 1.65;
}

/* ═══════════ FOR WHO ═══════════ */
.for-who {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.for-who__header { margin-bottom: 3rem; }

.for-who__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.for-who__card {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: all .3s ease;
}
.for-who__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.06);
}
.for-who__card-accent {
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--amber), var(--amber-light));
  opacity: 0;
  transition: opacity .3s;
}
.for-who__card:hover .for-who__card-accent { opacity: 1; }

.for-who__card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: .5rem;
}
.for-who__card p {
  font-size: .88rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ═══════════ ABOUT ═══════════ */
.about {
  background: var(--white);
  padding: 6rem 2rem;
}
.about__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about__text p {
  margin-top: 1rem;
  color: var(--text-light);
  line-height: 1.75;
}
.about__text strong { color: var(--navy); }

.about__stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.about__stat {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  background: var(--cream);
  border-radius: var(--radius-lg);
  border: 1px solid var(--cream-dark);
}
.about__stat-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--amber);
  line-height: 1;
  min-width: 80px;
}
.about__stat-label {
  font-size: .88rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* ═══════════ CTA ═══════════ */
.cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  padding: 6rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 50% 80%, var(--amber-glow) 0%, transparent 50%);
  pointer-events: none;
}

.cta__inner {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}
.cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--white);
  line-height: 1.2;
}
.cta__sub {
  margin-top: 1rem;
  font-size: 1.05rem;
  color: rgba(255,255,255,.7);
  line-height: 1.7;
}
.cta__actions {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.cta__actions .btn--ghost {
  color: rgba(255,255,255,.8);
  border-color: rgba(255,255,255,.2);
}
.cta__actions .btn--ghost:hover {
  background: rgba(255,255,255,.1);
  color: var(--white);
  border-color: rgba(255,255,255,.35);
}
.cta__note {
  margin-top: 1.25rem;
  font-size: .82rem;
  color: rgba(255,255,255,.5);
}

/* ═══════════ FAQ ═══════════ */
.faq {
  padding: 6rem 2rem;
}
.faq__inner {
  max-width: 720px;
  margin: 0 auto;
}
.faq__list { margin-top: 2.5rem; }

.faq__item {
  border-bottom: 1px solid var(--cream-dark);
}
.faq__item summary {
  padding: 1.25rem 0;
  font-weight: 600;
  font-size: 1rem;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .2s;
}
.faq__item summary:hover { color: var(--amber); }
.faq__item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--amber);
  transition: transform .3s;
}
.faq__item[open] summary::after {
  transform: rotate(45deg);
}
.faq__item summary::-webkit-details-marker { display: none; }

.faq__item p {
  padding: 0 0 1.25rem;
  font-size: .92rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ═══════════ FOOTER ═══════════ */
.footer {
  background: var(--navy);
  padding: 1.5rem 2rem;
}
.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__left {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--white);
  font-weight: 600;
  font-size: .9rem;
}
.footer__left .nav__logo-icon {
  width: 28px; height: 28px;
  font-size: .9rem;
}
.footer__right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: .82rem;
  color: var(--slate);
}
.footer__right a:hover { color: var(--amber); }

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .benefits__grid { grid-template-columns: repeat(2, 1fr); }
  .for-who__grid  { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: 8rem 1.5rem 4rem;
    gap: 3rem;
    text-align: center;
  }
  .hero__sub { margin: 1rem auto 0; }
  .hero__actions { justify-content: center; }
  .hero__visual { min-width: auto; width: 100%; max-width: 360px; margin: 0 auto; }

  .nav__links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 41, .97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    z-index: 99;
  }
  .nav__links.open { display: flex; }
  .nav__links a { font-size: 1.2rem; color: var(--white); }
  .nav__burger { display: flex; }

  .features__grid  { grid-template-columns: 1fr; }
  .benefits__grid  { grid-template-columns: 1fr; }
  .for-who__grid   { grid-template-columns: 1fr; }
  .about__inner    { grid-template-columns: 1fr; gap: 2.5rem; }

  .proof-bar__inner { gap: 1.5rem; }
  .proof-bar__sep { display: none; }
}