/*
   PokerHama — Poker Guide & Tournament Hub
   Includes real playing card symbols
   Updated: 2025-11-27
*/

:root {
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --header-bg: #ffffff;

  --fg: #0f172a;
  --fg-muted: #475569;
  --fg-accent: #0f766e;

  --border: #cbd5e1;
  --border-strong: #94a3b8;
  --border-light: #e2e8f0;

  --shadow-sm: rgba(0, 20, 60, 0.04);
  --shadow: rgba(0, 20, 60, 0.06);
  --shadow-hover: rgba(0, 20, 60, 0.1);

  /* === Distinct Green-Blue Accents (Light Mode) === */
  --color-intro:        #0f766e;     /* Deep teal */
  --color-gameflow:     #115e59;     /* Darker teal */
  --color-variants:     #0d5a5e;     /* Teal-blue */
  --color-rankings:     #1e5e6c;     /* Steel blue */
  --color-starting:     #225a55;     /* Forest teal */
  --color-guide:        #1a5650;     /* Muted green */
  --color-terminology:  #15525d;     /* Blue-green */

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

[data-theme='dark'] {
  --bg: #0b0f19;
  --card-bg: #121826;
  --header-bg: #121826;

  --fg: #f1f5f9;
  --fg-muted: #cbd5e1;
  --fg-accent: #10b981;

  --border: #334155;
  --border-strong: #64748b;
  --border-light: #1e293b;

  --shadow-sm: rgba(0, 0, 0, 0.16);
  --shadow: rgba(0, 0, 0, 0.24);
  --shadow-hover: rgba(0, 0, 0, 0.32);

  /* === Dark Mode: Slightly brighter but matching hues === */
  --color-intro:        #10b981;
  --color-gameflow:     #0f9f8f;
  --color-variants:     #1096a0;
  --color-rankings:     #2a9abf;
  --color-starting:     #2ea18f;
  --color-guide:        #1f9788;
  --color-terminology:  #1a92a3;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.48;
  font-size: 14.8px;
  padding-bottom: 1.8rem;
  margin: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (min-width: 1024px) {
  .container {
    padding: 0 3.2rem;
  }
}

/* Brand Header — Updated to "PokerHama" */
.brand-header {
  display: flex;
  justify-content: center;
  padding: 0.85rem 0;
  position: relative;
  background: var(--header-bg);
  border-bottom: 2px solid var(--border-strong);
}

.brand-header a {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--fg);
  font-size: 1.65rem;
  font-weight: 800;
}

.brand-text::before {
  content: 'Poker';
  color: var(--fg-accent);
}
.brand-text::after {
  content: 'Hama';
  color: var(--color-gameflow);
  font-weight: 700;
  font-size: 0.92em;
  opacity: 0.94;
}

.theme-toggle {
  position: absolute;
  right: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg);
  cursor: pointer;
  transition: all 0.2s ease;
}

@media (min-width: 1024px) {
  .theme-toggle {
    right: 3.2rem;
  }
}

.theme-toggle:hover {
  border-color: var(--fg-accent);
  background: rgba(15, 118, 110, 0.06);
}

/* === Navigation Tabs === */
.main-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  padding: 0 0.9rem;
  margin: 0.85rem auto 1rem;
  background: var(--bg);
  border-bottom: 2px solid var(--border-strong);
}

@media (min-width: 1024px) {
  .main-tabs {
    padding: 0 3.2rem;
  }
}

.main-tab-btn {
  flex: 1 1 calc(100% / 9 - 1px);
  min-width: 110px;
  max-width: 180px;
  background: transparent;
  border: none;
  padding: 0.74rem 0.9rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--fg-muted);
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
  position: relative;
  z-index: 1;
  border-radius: 10px 10px 0 0;
  margin-bottom: -2px;
  line-height: 1.3;
}

@media (min-width: 769px) {
  .main-tab-btn {
    flex: 1;
    min-width: auto;
  }
}

.main-tab-btn:hover:not(.active) {
  color: var(--fg-accent);
  background: rgba(15, 118, 110, 0.06);
}

.main-tab-btn.active {
  background: var(--fg-accent) !important;
  color: white !important;
  font-weight: 700;
  z-index: 3;
  box-shadow: 0 -2px 8px var(--shadow);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.main-tabs a.main-tab-btn {
  text-decoration: none;
  color: var(--fg-muted);
  display: block;
}

.main-tabs a.main-tab-btn:hover:not(.active) {
  color: var(--fg-accent);
  background: rgba(15, 118, 110, 0.06);
}

@media (max-width: 768px) {
  .main-tab-btn {
    flex: 1 1 130px;
    padding: 0.68rem 0.7rem;
    font-size: 0.88rem;
  }
}

@media (max-width: 480px) {
  .main-tab-btn {
    flex: 1 1 100%;
    padding: 0.64rem 0.8rem;
    font-size: 0.87rem;
  }
}

/* Join Buttons */
.join-btn.alt-btn,
.join-btn {
  background: var(--fg-accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.52rem 0.9rem;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 2px 5px var(--shadow-sm);
}

.join-btn.alt-btn {
  flex: 1 1 180px;
  max-width: 220px;
  min-width: 140px;
}

.join-btn.alt-btn:hover,
.join-btn:hover {
  background: #0d665d;
  transform: translateY(-1px);
  box-shadow: 0 3px 7px var(--shadow);
}

[data-theme='dark'] .join-btn.alt-btn:hover,
[data-theme='dark'] .join-btn:hover {
  background: #0d947a;
}

@media (max-width: 640px) {
  .join-btn.alt-btn {
    min-width: 100%;
    flex: 1 1 100%;
  }
}

/* Format Box */
.format-box {
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 0.85rem 1.1rem;
  margin: 0.6rem 0;
  font-size: 15.2px;
  color: var(--fg);
  line-height: 1.5;
}

/* SECTION CARDS */
.section-card {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 13px;
  margin: 0.9rem 0;
  box-shadow: 0 3px 10px var(--shadow);
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.2, 0, 0.1, 1);
}

.section-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 6px 16px var(--shadow-hover);
  transform: translateY(-2px);
}

.section-header {
  padding: 0.8rem 4rem;
  font-weight: 800;
  font-size: 1.24rem;
  color: white;
  letter-spacing: -0.4px;
  background: linear-gradient(135deg, var(--header-color), var(--header-color-end));
}

/* === Unique Gradients for Each Section === */
.intro .section-header        { --header-color: var(--color-intro);        --header-color-end: #0c5f58; }
.gameflow .section-header     { --header-color: var(--color-gameflow);     --header-color-end: #0e4a46; }
.variants .section-header     { --header-color: var(--color-variants);     --header-color-end: #0a4a4e; }
.rankings .section-header     { --header-color: var(--color-rankings);     --header-color-end: #184b56; }
.starting .section-header     { --header-color: var(--color-starting);     --header-color-end: #1b4843; }
.guide .section-header        { --header-color: var(--color-guide);        --header-color-end: #154742; }
.terminology .section-header  { --header-color: var(--color-terminology);  --header-color-end: #11434a; }

.section-body {
  padding: 1rem 4rem;
  font-size: 16.4px;
  color: var(--fg);
  line-height: 1.52;
}

.section-body p,
.section-body li {
  margin-bottom: 0.75rem;
  color: var(--fg-muted);
  font-size: 16.4px;
}

.section-body a {
  color: var(--fg-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.section-body ul,
.section-body ol {
  padding-left: 1.7rem;
  margin: 0.85rem 0;
}

/* Terminology Cards */
.term-card {
  background: var(--bg);
  border: 2px solid var(--border-light);
  border-radius: 11px;
  padding: 0.8rem 1.4rem;
  margin-bottom: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
  transition: border-color 0.18s ease;
}

.term-card:hover {
  border-color: var(--border);
}

.term-name {
  font-weight: 800;
  color: var(--fg-accent);
  flex: 1 1 80px;
  min-width: 90px;
  font-size: 16.8px;
}

.term-def {
  color: var(--fg-muted);
  flex: 3 1 270px;
  font-size: 16.2px;
  line-height: 1.48;
}

/* === REAL PLAYING CARD SYMBOLS === */
.card-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 72px;
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1.45rem;
  font-weight: 800;
  margin: 0 4px 6px;
  box-shadow: 0 2px 4px var(--shadow-sm);
  font-family: 'Courier New', monospace;
  flex-shrink: 0;
  transition: all 0.18s ease;
}

.card-symbol:hover {
  transform: scale(1.12);
  z-index: 2;
  box-shadow: 0 4px 8px var(--shadow);
  border-color: var(--fg-accent);
}

.s-heart   { color: #ef4444; }          /* Red */
.s-diamond { color: #a52a2a; }          /* BRICK RED */
.s-spade   { color: var(--fg-accent); } /* Teal */
.s-club    { color: var(--fg); }        /* Text color */

[data-theme='dark'] .card-symbol {
  background: #1a2130;
  border-color: #475569;
}

/* Hand Rankings */
.hand-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hand-item:last-child {
  border-bottom: none;
}

.hand-name {
  font-weight: 800;
  color: var(--fg-accent);
  font-size: 16.8px;
  margin-bottom: 0.3rem;
}

.hand-cards {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

@media (min-width: 769px) {
  .hand-item {
    flex-wrap: nowrap;
    gap: 1.2rem;
  }
  .hand-name {
    flex: 0 0 190px;
    margin-bottom: 0;
  }
  .hand-cards {
    flex: 1;
    justify-content: flex-start;
  }
}

/* === Tournament Section === */
.tournament-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.tournament-card {
  background: var(--bg);
  border: 2px solid var(--border-light);
  border-radius: 11px;
  padding: 1.1rem;
  transition: border-color 0.18s ease;
}

.tournament-card:hover {
  border-color: var(--border);
}

.tournament-name {
  font-weight: 800;
  font-size: 19px;
  color: var(--color-gameflow);
  margin-bottom: 0.8rem;
}

.tournament-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.reg-deadline,
.game-date {
  flex: 1 1 200px;
}

.date-time {
  color: var(--fg);
  font-weight: 600;
  font-size: 16.4px;
}

.tournament-info {
  padding-left: 1.4rem;
  margin: 0.8rem 0;
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.5;
}

.button-center {
  text-align: center;
  margin-top: 0.6rem;
}

/* Footer */
.footer {
  text-align: center;
  margin-top: 1.9rem;
  padding: 1rem;
  font-size: 0.87rem;
  color: var(--fg-muted);
  border-top: 1px solid var(--border-light);
}

@media (min-width: 1024px) {
  .footer {
    padding: 1rem 3.2rem;
  }
}

/* Go to Top */
#goToTop {
  position: fixed;
  bottom: max(1.3rem, env(safe-area-inset-bottom, 1.3rem));
  right: max(1.3rem, env(safe-area-inset-right, 1.3rem));
  width: 42px;
  height: 42px;
  background: var(--fg-accent);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.28s ease;
  box-shadow: 0 2px 7px rgba(0,0,0,0.2);
  z-index: 100;
}

#goToTop.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#goToTop:hover {
  background: #0d665d;
}

[data-theme='dark'] #goToTop {
  background: #10b981;
}

[data-theme='dark'] #goToTop:hover {
  background: #0d947a;
}

/* Mobile */
@media (max-width: 768px) {
  .container { padding: 0 1.1rem; }
  .brand-header a { font-size: 1.55rem; gap: 0.7rem; }
  .section-header { font-size: 1.18rem; padding: 0.75rem 1.1rem; }
  .section-body { padding: 0.95rem 1.1rem; font-size: 16px; }
  .card-symbol {
    width: 46px;
    height: 64px;
    font-size: 1.3rem;
    margin: 0 3px 5px;
  }
  .tournament-dates {
    flex-direction: row;
    gap: 0.8rem;
  }
  .reg-deadline,
  .game-date {
    flex: 1 1 calc(50% - 0.4rem);
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 0.95rem; }
  .brand-header a { font-size: 1.4rem; }
  .hand-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  .card-symbol {
    width: 40px;
    height: 56px;
    font-size: 1.15rem;
    margin: 0 2.5px 4px;
  }
  .hand-name,
  .hand-cards {
    flex: 1 1 100%;
  }
  .tournament-dates {
    flex-direction: column;
    gap: 0.7rem;
  }
  .reg-deadline,
  .game-date {
    flex: 1 1 100%;
  }
}