/* ============================================
   Agentic Learning — Global Styles
   ============================================ */

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

:root {
  --color-cyan: #1DA5F2;
  --color-cyan-dark: #1a94da;
  --color-dark: #000000;
  --color-body: #999999;
  --color-white: #ffffff;
  --color-bg: #ffffff;
  --color-footer-bg: #1DA5F2;
  --max-width: 1200px;
  --radius-card: 20px;
  --font-heading: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

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

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

/* ============================================
   Typography
   ============================================ */

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

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

.page-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.page-subtitle {
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 400;
  color: var(--color-body);
  margin-top: 0.25rem;
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 700;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: -0.04em;
  text-align: center;
}

/* ============================================
   Layout
   ============================================ */

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

/* ============================================
   Navigation
   ============================================ */

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 24px;
  gap: 16px;
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-logo {
  position: absolute;
  left: 24px;
  width: 64px;
  height: 64px;
}

.nav-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-dark);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.nav-social {
  position: absolute;
  right: 24px;
  display: flex;
  gap: 12px;
}

.nav-social a {
  opacity: 0.4;
  transition: opacity 0.2s;
}

.nav-social a:hover {
  opacity: 0.8;
}

.nav-social svg {
  width: 24px;
  height: 24px;
}

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

.btn-talk {
  display: inline-block;
  background: linear-gradient(180deg, #2bb5ff 0%, var(--color-cyan) 100%);
  color: var(--color-white);
  padding: 16px 40px;
  border-radius: 50px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  border: none;
  cursor: pointer;
  box-shadow:
    0 3px 0 #1280b8,
    0 4px 8px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: background 0.3s ease, box-shadow 0.3s ease, color 0.3s ease, text-shadow 0.3s ease;
}

.btn-talk:hover {
  background: linear-gradient(180deg, #1DA5F2 0%, #1280b8 100%);
  color: #1a8fd4;
  text-shadow:
    0 1px 1px rgba(255, 255, 255, 0.3),
    0 -1px 2px rgba(0, 0, 0, 0.4);
  box-shadow:
    0 3px 0 #1280b8,
    0 4px 8px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-talk:active {
  background: linear-gradient(180deg, var(--color-cyan) 0%, #1280b8 100%);
  box-shadow:
    0 1px 0 #1280b8,
    0 1px 3px rgba(0, 0, 0, 0.15),
    inset 0 1px 2px rgba(0, 0, 0, 0.1);
  transform: translateY(2px);
}

/* ============================================
   Hero
   ============================================ */

.hero-image {
  width: 100vw;
  max-width: none;
  display: block;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  aspect-ratio: 1248 / 594;
  object-fit: cover;
}

/* ============================================
   Offerings
   ============================================ */

.offerings {
  padding: 80px 0 40px;
}

.offering-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
}

.offering-card.reversed {
  direction: rtl;
}

.offering-card.reversed > * {
  direction: ltr;
}

.offering-number {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.offering-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.1;
  margin-bottom: 12px;
}

.offering-desc {
  font-size: 32px;
  color: var(--color-body);
  line-height: 1.3;
}

.offering-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-card);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

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

.footer {
  background: linear-gradient(180deg, #2bb5ff 0%, var(--color-cyan) 100%);
  padding: 48px 24px 32px;
  text-align: center;
  margin-top: 40px;
  box-shadow:
    inset 0 2px 0 rgba(255, 255, 255, 0.15);
}

.footer-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
}

.footer-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer-copy {
  color: var(--color-white);
  font-size: 0.9rem;
  opacity: 0.9;
}

/* ============================================
   About Page
   ============================================ */

.about-header {
  text-align: center;
  padding: 40px 0 24px;
}

.about-photo {
  display: block;
  width: min(460px, 100%);
  margin: 40px auto 0;
  border-radius: 4px;
}

.about-name {
  text-align: center;
  font-size: 24px;
  font-weight: 400;
  color: var(--color-body);
  letter-spacing: -0.04em;
  margin: 32px 0 8px;
}

.about-cta {
  text-align: center;
  margin: 16px 0 40px;
}

.stats {
  display: flex;
  justify-content: space-around;
  gap: 48px;
  padding: 48px 24px;
  flex-wrap: wrap;
  background: linear-gradient(180deg, #2bb5ff 0%, var(--color-cyan) 100%);
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  box-shadow:
    inset 0 2px 0 rgba(255, 255, 255, 0.15),
    0 4px 0 #1280b8,
    0 6px 12px rgba(0, 0, 0, 0.15);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--color-white);
}

.stat-label {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-top: 4px;
}

.bio {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 24px 60px;
  font-size: 20px;
  line-height: 1.15;
  color: var(--color-dark);
  font-weight: 500;
  text-align: center;
}

.bio p + p {
  margin-top: 0.8em;
}

.bio strong {
  font-weight: 700;
  color: var(--color-dark);
}

.bio-light {
  color: #999999;
}

/* ============================================
   Resources Page
   ============================================ */

.resources-hero {
  position: relative;
  width: 100vw;
  left: 50%;
  transform: translateX(-50%);
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.resources-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.resources-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.resources-title {
  color: var(--color-white);
}

.resources-subtitle {
  color: rgba(255, 255, 255, 0.85);
}

.resources-section {
  padding: 40px 0;
}

.resources-intro {
  font-size: 18px;
  color: var(--color-body);
  text-align: center;
  max-width: 740px;
  margin: 0 auto 40px;
}

.intro-line {
  display: block;
  width: fit-content;
  margin: 0 auto;
  white-space: nowrap;
}

.resource-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.resource-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: var(--color-white);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}

.gem-card {
  aspect-ratio: 1 / 1;
  justify-content: flex-start;
  max-width: 420px;
}

.gem-card .resource-card-title {
  font-size: 20px;
  margin-bottom: 2px;
}

.gem-card .resource-card-desc {
  font-size: 13px;
  line-height: 1.4;
  margin-top: 6px;
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.resource-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-cyan);
  background: none;
  padding: 0;
  border-radius: 0;
  margin-bottom: 16px;
}


.resource-card-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
  margin-bottom: 12px;
}

.resource-card-desc {
  font-size: 16px;
  color: var(--color-body);
  line-height: 1.5;
}

.gem-card-footer {
  background: linear-gradient(180deg, #2bb5ff 0%, var(--color-cyan) 100%);
  margin: auto -32px -32px -32px;
  padding: 12px 32px 33px 32px;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.gem-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
}

.gem-link:hover {
  text-decoration: underline;
}

.exemplar-links {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
  width: 100%;
}

.exemplar-link {
  font-size: 12px;
  color: var(--color-white);
  text-decoration: none;
  opacity: 0.9;
  white-space: nowrap;
}

.exemplar-link:hover {
  text-decoration: underline;
  opacity: 1;
}

.gem-phase {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

.gem-card--soon {
  opacity: 0.6;
  filter: grayscale(0.3);
}

.gem-card--soon .gem-card-footer {
  min-height: 123px;
  justify-content: center;
  align-items: flex-start;
}

.gem-coming-soon {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
  font-style: italic;
}

.resources-cta {
  text-align: center;
  padding: 40px 0 60px;
}

/* ============================================
   Responsive — Tablet (768px – 1024px)
   ============================================ */

@media (max-width: 1024px) {
  /* Container */
  .container {
    padding: 0 32px;
  }

  /* Typography — scale down slightly */
  .page-title {
    font-size: clamp(2.5rem, 7vw, 3.5rem);
  }

  .section-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  /* Offerings — keep 2-col but tighten */
  .offering-card {
    gap: 28px;
    padding: 32px 0;
  }

  .offering-title {
    font-size: 28px;
  }

  .offering-desc {
    font-size: 24px;
  }

  /* About */
  .bio {
    max-width: 600px;
    font-size: 18px;
  }

  /* Resources */
  .resources-hero {
    min-height: 280px;
  }

  .resource-cards {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

/* ============================================
   Responsive — Mobile (under 768px)
   ============================================ */

@media (max-width: 768px) {
  /* Container */
  .container {
    padding: 0 20px;
  }

  /* Navigation — keep horizontal, tighten spacing */
  .nav {
    flex-direction: row;
    gap: 8px;
    padding: 12px 16px;
  }

  .nav-logo {
    position: static;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .nav-links {
    gap: 12px;
    flex: 1;
    justify-content: center;
  }

  .nav-links a {
    font-size: 0.85rem;
  }

  .nav-social {
    position: static;
    flex-shrink: 0;
  }

  /* Typography */
  .page-title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .page-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  /* Home header */
  .home-header {
    padding-top: 20px;
  }

  /* Hero */
  .hero-image {
    aspect-ratio: 4 / 3;
  }

  /* Offerings — single column */
  .offerings {
    padding: 32px 0 16px;
  }

  .offering-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px 0;
  }

  .offering-card.reversed {
    direction: ltr;
  }

  .offering-title {
    font-size: 24px;
  }

  .offering-desc {
    font-size: 20px;
  }

  .offering-image {
    aspect-ratio: 4 / 3;
  }

  /* Buttons */
  .btn-talk {
    padding: 12px 28px;
    font-size: 0.9rem;
  }

  /* Footer */
  .footer {
    padding: 32px 20px 24px;
  }

  .footer-logo {
    width: 60px;
    height: 60px;
  }

  /* About */
  .about-photo {
    width: min(340px, 100%);
    margin-top: 24px;
  }

  .about-name {
    font-size: 20px;
    margin: 24px 0 8px;
  }

  .stats {
    gap: 24px;
    padding: 32px 20px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.85rem;
  }

  .bio {
    max-width: 100%;
    padding: 28px 20px 40px;
    font-size: 17px;
    line-height: 1.3;
  }

  /* Resources */
  .resources-hero {
    min-height: 220px;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    left: 0;
    transform: none;
  }

  .resources-section {
    padding: 28px 0;
  }

  .resources-intro {
    font-size: 15px;
    margin-bottom: 24px;
  }

  .intro-line {
    display: inline;
    white-space: normal;
  }

  .resource-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .resource-card {
    padding: 24px;
  }

  .resource-card-title {
    font-size: 20px;
  }

  .resource-card-desc {
    font-size: 14px;
  }

  .resources-cta {
    padding: 24px 0 40px;
  }
}

/* ============================================
   Responsive — Small Mobile (under 480px)
   ============================================ */

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .page-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .offering-title {
    font-size: 20px;
  }

  .offering-desc {
    font-size: 17px;
  }

  .stats {
    flex-direction: column;
    gap: 20px;
    padding: 28px 16px;
  }

  .stat-number {
    font-size: 1.6rem;
  }

  .bio {
    font-size: 15px;
    padding: 24px 16px 32px;
  }

  .nav-links {
    gap: 10px;
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .nav-logo {
    width: 30px;
    height: 30px;
  }

  .offering-card {
    gap: 12px;
    padding: 16px 0;
  }

  .offering-desc {
    font-size: 15px;
  }
}