/* ========================================
   DESIGN SYSTEM from DESIGN.md – Custom Properties
   ======================================== */

:root {
  /* Colors Light */
  --color-canvas-white: #ffffff;
  --color-ghost-gray: #f2f2f2;
  --color-subtle-ash: #e5e5e5;
  --color-midtone-gray: #737373;
  --color-rich-black: #0a0a0a;
  --color-deep-black: #000000;
  --color-callout-red: #c22b10;
  --color-success-green: #10c22b;

  /* Surfaces */
  --surface-page: var(--color-canvas-white);
  --surface-card: var(--color-canvas-white);
  --surface-nav: var(--color-canvas-white);
  --surface-dropdown: var(--color-canvas-white);
  --color-border: var(--color-subtle-ash);
  --color-text-primary: var(--color-rich-black);
  --color-text-heading: var(--color-deep-black);
  --color-text-muted: var(--color-midtone-gray);
  --color-badge-neutral-bg: var(--color-ghost-gray);
  --color-badge-neutral-text: var(--color-rich-black);

  /* Shadows */
  --shadow-subtle-2: 0px 0px 0px 1px oklab(0.145 -0.00000143796 0.00000340492 / 0.1);

  /* Typography */
  --font-geist: 'Geist', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --text-caption: 12px;
  --leading-caption: 1.5;
  --text-body: 14px;
  --leading-body: 1.43;
  --text-heading: 18px;
  --leading-heading: 1.33;
  --tracking-heading: -0.45px;
  --text-display: 48px;
  --leading-display: 1;
  --tracking-display: -2.4px;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  /* Spacing */
  --spacing-4: 4px;
  --spacing-5: 5px;
  --spacing-6: 6px;
  --spacing-8: 8px;
  --spacing-10: 10px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-20: 20px;
  --spacing-24: 24px;
  --spacing-32: 32px;
  --spacing-40: 40px;
  --spacing-80: 80px;
  --spacing-83: 83px;

  /* Border Radius */
  --radius-pill: 9999px;
  --radius-badge: 26px;
  --radius-cards: 14px;
  --radius-input: 10px;
  --radius-buttons: 10px;
}

/* ========================================
   Dark Mode (default)
   ======================================== */

html.dark {
  --color-canvas-white: #121212;
  --color-ghost-gray: #1e1e1e;
  --color-subtle-ash: #2a2a2a;
  --color-midtone-gray: #888888;
  --color-rich-black: #e0e0e0;
  --color-deep-black: #ffffff;
  --color-callout-red: #ff6b6b;
  --color-success-green: #51cf66;

  --surface-page: var(--color-canvas-white);
  --surface-card: #1a1a1a;
  --surface-nav: #121212;
  --surface-dropdown: #1e1e1e;
  --color-border: #2a2a2a;
  --color-text-primary: #e0e0e0;
  --color-text-heading: #ffffff;
  --color-text-muted: #888888;
  --color-badge-neutral-bg: #2a2a2a;
  --color-badge-neutral-text: #e0e0e0;

  --shadow-subtle-2: 0px 0px 0px 1px rgba(255, 255, 255, 0.05);
}

/* ========================================
   Base & Reset
   ======================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-geist);
  font-weight: var(--font-weight-regular);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text-primary);
  background-color: var(--surface-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s, color 0.3s;
}

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

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

/* ========================================
   Container
   ======================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-24);
}

/* ========================================
   Nav
   ======================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--surface-nav);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.3s;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 var(--spacing-24);
  max-width: 1200px;
  margin: 0 auto;
  gap: var(--spacing-8);
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo-img {
  height: 40px;
  width: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
}

.nav-links {
  display: flex;
  gap: var(--spacing-4);
  align-items: center;
}

/* Dropdown styles */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropbtn {
  background: none;
  border: none;
  font-family: var(--font-geist);
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding: var(--spacing-8) var(--spacing-12);
  cursor: pointer;
  border-radius: var(--radius-input);
  transition: background 0.2s;
}

.dropbtn:hover {
  background-color: var(--color-ghost-gray);
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--surface-dropdown);
  min-width: 200px;
  box-shadow: var(--shadow-subtle-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-cards);
  padding: var(--spacing-4) 0;
  z-index: 200;
}

.dropdown-content a {
  display: block;
  padding: var(--spacing-8) var(--spacing-16);
  font-size: 14px;
  color: var(--color-text-primary);
  transition: background 0.2s;
}

.dropdown-content a:hover {
  background-color: var(--color-ghost-gray);
}

.dropdown.open .dropdown-content {
  display: block;
}

.nav-actions {
  display: flex;
  gap: var(--spacing-8);
  align-items: center;
}

/* Hamburger button – hidden on desktop */
.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-primary);
  padding: var(--spacing-4) var(--spacing-8);
  border-radius: var(--radius-input);
  transition: background 0.2s;
}

.hamburger:hover {
  background-color: var(--color-ghost-gray);
}

/* Dark mode toggle icon */
.dark-mode-icon {
  display: block;
  width: 16px;
  height: 16px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-geist);
  font-weight: var(--font-weight-medium);
  font-size: 14px;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}

.btn-primary {
  background-color: var(--color-deep-black);
  color: var(--surface-page);
  padding: var(--spacing-8) var(--spacing-12);
  border-radius: var(--radius-buttons);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  padding: var(--spacing-8) var(--spacing-12);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background-color: var(--color-ghost-gray);
}

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

.hero {
  padding: var(--spacing-83) 0;
  text-align: center;
}

.hero-title {
  font-size: var(--text-display);
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-16);
  transition: color 0.3s;
}

.hero-subtitle {
  font-size: var(--text-heading);
  font-weight: var(--font-weight-regular);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-text-primary);
  max-width: 640px;
  margin: 0 auto var(--spacing-32);
}

.hero-tagline {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: var(--spacing-10);
}

.highlight {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-12);
  justify-content: center;
}

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

.section {
  padding: var(--spacing-83) 0;
}

.section + .section {
  border-top: 1px solid var(--color-border);
}

.section-title {
  font-size: var(--text-heading);
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-24);
  transition: color 0.3s;
}

.section-subtitle {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-20);
}

/* ========================================
   Cards
   ======================================== */

.card {
  background-color: var(--surface-card);
  border-radius: var(--radius-cards);
  box-shadow: var(--shadow-subtle-2);
  padding: var(--card-padding, var(--spacing-16));
  border: 1px solid var(--color-border);
  transition: background-color 0.3s, border-color 0.3s;
}

/* ========================================
   Badges
   ======================================== */

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  line-height: 1.5;
}

.badge-success {
  background-color: var(--color-success-green);
  color: var(--surface-page);
}

.badge-neutral {
  background-color: var(--color-badge-neutral-bg);
  color: var(--color-badge-neutral-text);
}

.badge-outline {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

/* ========================================
   Event Grid
   ======================================== */

.event-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-16);
}

.event-grid-card {
  padding: var(--spacing-16);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.event-grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
}

.event-grid-icon {
  font-size: 28px;
}

.event-grid-title {
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
  margin: 0;
}

.event-grid-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ========================================
   Gacha Section
   ======================================== */

.gcha-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-16);
}

.gacha-card {
  padding: var(--spacing-20);
}

.gacha-rarity {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  margin: 0 var(--spacing-6) var(--spacing-6) 0;
  color: #fff;
}

/* ========================================
   How Grid
   ======================================== */

.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-16);
}

.how-card {
  padding: var(--spacing-24) var(--spacing-16);
  text-align: center;
}

.how-icon {
  font-size: 32px;
  margin-bottom: var(--spacing-12);
}

.how-card h3 {
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-8);
  color: var(--color-text-heading);
}

.how-card p {
  font-size: 14px;
  color: var(--color-text-muted);
}

code {
  background: var(--color-ghost-gray);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* ========================================
   Join Section
   ======================================== */

.join-card {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--spacing-32);
  text-align: center;
}

.join-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-16);
  margin-top: var(--spacing-20);
  text-align: left;
}

.join-step {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-12);
}

.join-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-deep-black);
  color: var(--surface-page);
  font-weight: var(--font-weight-semibold);
  font-size: 14px;
  flex-shrink: 0;
}

.join-step-title {
  display: block;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
  margin-bottom: 2px;
}

.join-step-desc {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
}

.join-online {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-8);
  margin-top: var(--spacing-24);
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ========================================
   About Card
   ======================================== */

.about-card {
  max-width: 700px;
}

.about-text {
  margin-bottom: var(--spacing-16);
  line-height: 1.7;
  color: var(--color-text-primary);
}

.about-features {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-8) var(--spacing-16);
}

.about-features li {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* About actions (Normas & Blog buttons) - Embedded style */
.about-actions {
  width: 80%;
  max-width: 960px;
  margin: var(--spacing-24) auto 0 auto;
  display: grid;
  grid-template-columns: 30% 30%;
  justify-content: center;
  gap: 4%;
  padding: 0;
}

.about-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-geist);
  font-weight: var(--font-weight-medium);
  font-size: 18px;
  line-height: 1;
  border: 2px solid var(--color-border);
  cursor: pointer;
  padding: 24px 0;
  border-radius: 12px;
  background-color: var(--surface-card);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: font-weight 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  box-shadow: var(--shadow-subtle-2);
}

.about-btn:hover {
  font-weight: 700;
  box-shadow: var(--shadow-subtle-2);
  background-color: var(--color-ghost-gray);
  border-color: var(--color-rich-black);
}

/* ========================================
   Event Card (current / past)
   ======================================== */

.event-card {
  max-width: 600px;
}

.event-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-10);
  margin-bottom: var(--spacing-12);
}

.event-label {
  font-weight: var(--font-weight-semibold);
  font-size: 16px;
  color: var(--color-text-heading);
}

.event-desc {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-16);
}

.event-meta {
  display: flex;
  gap: var(--spacing-24);
  flex-wrap: wrap;
}

.meta-item {
  font-size: 13px;
  color: var(--color-text-muted);
}

.meta-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* ========================================
   Upcoming placeholder
   ======================================== */

.upcoming-placeholder {
  display: flex;
  gap: var(--spacing-8);
  padding: var(--spacing-16) 0;
  flex-wrap: wrap;
}

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

.footer {
  padding: var(--spacing-32) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-text {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  word-break: break-word;
}

/* ========================================
   Banners Grid (used in banners.html)
   ======================================== */

.banner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-32);
}

.banner-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  padding: var(--spacing-16);
}

.banner-image-wrapper {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.banner-title {
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
}

.banner-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ========================================
   Shop Grid (used in shop.html)
   ======================================== */

.shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-32);
}

.rank-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  padding: var(--spacing-16);
}

.rank-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.rank-title {
  font-size: 18px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
}

.rank-price {
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-heading);
  background: var(--color-ghost-gray);
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  white-space: nowrap;
}

.rank-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.rank-features li {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.rank-cta {
  margin-top: var(--spacing-12);
  width: 100%;
}

/* ========================================
   Goal progress bar (shop.html)
   ======================================== */

.goal-card {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.goal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-16);
}

.goal-title {
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
}

.goal-amount {
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
}

.goal-bar-wrapper {
  width: 100%;
  height: 12px;
  background-color: var(--color-ghost-gray);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-bottom: var(--spacing-12);
}

.goal-bar {
  height: 100%;
  background-color: var(--color-success-green);
  border-radius: var(--radius-pill);
  transition: width 1.2s ease-out;
  width: 0%;
}

.goal-subtext {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: var(--spacing-8);
}

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--surface-nav);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-16);
    gap: var(--spacing-4);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    z-index: 99;
  }

  .nav-links.open {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .nav-links.open .dropdown {
    width: 100%;
  }

  .nav-links.open .dropbtn {
    width: 100%;
    text-align: left;
  }

  .nav-links.open .dropdown-content {
    position: static;
    box-shadow: none;
    border: none;
    background: transparent;
    padding-left: var(--spacing-16);
    display: none;
  }

  .nav-links.open .dropdown.open .dropdown-content {
    display: block;
  }

  .hero {
    padding: var(--spacing-40) 0;
  }

  .hero-title {
    font-size: 28px;
    letter-spacing: -0.5px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section {
    padding: var(--spacing-40) 0;
  }

  .banner-grid,
  .shop-grid,
  .gcha-grid,
  .how-grid,
  .event-grid {
    gap: var(--spacing-16);
  }

  .about-features {
    flex-direction: column;
  }

  .about-actions {
    width: 100%;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
  }

  .about-btn {
    font-size: 16px;
    padding: 18px 0;
  }

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

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

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

  .join-card {
    padding: var(--spacing-16);
  }

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

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

  .goal-header {
    flex-direction: column;
    gap: var(--spacing-8);
  }
}