/* ==========================================================================
   TypingLo Lessons CSS Styling System
   ========================================================================== */

:root {
  --bg-color: #f4f7f6;
  --text-main: #2d3e50;
  --text-muted: #7c8e9f;
  --border-color: #e2eaf0;
  --white: #ffffff;
  
  /* Primary Branding Colors */
  --primary-blue: #0082c3;
  --primary-blue-hover: #006da4;
  --primary-blue-dark: #005682;
  --accent-yellow: #ffb900;
  --accent-yellow-border: #e6a700;
  --accent-orange: #f37023;
  
  /* Letter Typing Vibe */
  --letter-default: #7a8b9c;
  --letter-correct: #22252a; /* Bold dark slate */
  --letter-correct-bg: #e2f4e3; /* Soft green success hint */
  --letter-incorrect: #d9381e; /* Bold red */
  --letter-incorrect-bg: #fde8e5; /* Red background error */
  --cursor-color: #0082c3;

  /* Font Tokens */
  --font-sans: 'Inter', 'Outfit', sans-serif;
  --font-mono: 'Fira Code', 'JetBrains Mono', monospace;

  /* Grid Shadows */
  --card-shadow: 0 4px 18px rgba(45, 62, 80, 0.08);
}

/* ==========================================================================
   Base Styles & Layout
   ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  outline: none;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
}

.app-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* ==========================================================================
   Header Component (Clone of TypingLo top nav)
   ========================================================================== */

.main-header {
  background-color: var(--primary-blue);
  color: #ffffff;
  height: 64px;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 3px 10px rgba(0,0,0,0.06);
  z-index: 100;
  position: relative;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Logo Vibe */
.logo-container {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.seedling-icon-logo {
  font-size: 1.8rem;
  color: #79d03a;
  margin-right: 8px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

.logo-text-wrapper {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-main {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-dot {
  color: #79d03a;
}

.logo-backlink {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.7);
  font-weight: 600;
}

/* Navigation Links (Themes and Progress removed!) */
.header-nav {
  display: none;
  height: 100%;
  align-items: center;
}

@media(min-width: 900px) {
  .header-nav {
    display: flex;
  }
}

.nav-item {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0 16px;
  height: 100%;
  display: flex;
  align-items: center;
  border-bottom: 4px solid transparent;
  transition: all 0.15s ease;
}

.nav-item:hover {
  color: #ffffff;
  border-bottom-color: rgba(255,255,255,0.5);
}

.nav-item.active {
  color: #ffffff;
  border-bottom-color: #ffffff;
}

.nav-item.spec {
  color: #ffffff;
  background-color: rgba(0, 0, 0, 0.12);
  border-bottom: none;
  border-radius: 4px;
  height: 36px;
  margin-left: 8px;
}

/* Right Section buttons */
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.auth-logged-out-view {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sign-up-btn {
  background-color: var(--accent-orange);
  border: none;
  color: #ffffff;
  padding: 8px 18px;
  font-family: var(--font-sans);
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 3px 0 #bc4c0b;
  transition: transform 0.1s, box-shadow 0.1s;
}

.sign-up-btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #bc4c0b;
}

.login-link {
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
}

/* Dynamic Logged in profile style */
.auth-logged-in-view {
  display: flex;
}

.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 14px;
  border-radius: 20px;
  cursor: pointer;
  position: relative;
  user-select: none;
  transition: background-color 0.15s;
}

.user-profile-badge:hover {
  background-color: rgba(255, 255, 255, 0.22);
}

.google-avatar-img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid #ffffff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.user-display-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
}

/* Elegant dropdown for Sign Out */
.user-dropdown-container {
  position: absolute;
  top: 100%;
  right: 0;
  padding-top: 8px;
  display: none;
  z-index: 200;
  flex-direction: column;
  gap: 6px;
}

.user-profile-badge:hover .user-dropdown-container {
  display: flex;
}

.dropdown-item-btn {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
  text-decoration: none;
  transition: all 0.1s;
}

.dropdown-item-btn:hover {
  background-color: #f0f7ff;
  color: #0082c3;
  border-color: #bee3f8;
}

.sign-out-dropdown-btn {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 8px;
  width: max-content;
  transition: all 0.1s;
}

.sign-out-dropdown-btn:hover {
  background-color: #fee2e2;
  color: var(--letter-incorrect);
  border-color: #fca5a5;
}

/* ==========================================================================
   Daily Goal & Level Subheader Strip
   ========================================================================== */

.subheader-status-bar {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 8px 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.subheader-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

@media(min-width: 768px) {
  .subheader-inner {
    flex-direction: row;
    gap: 20px;
  }
}

/* Seedling Details Card */
.seedling-status-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 240px;
}

.seedling-avatar-circle {
  width: 38px;
  height: 38px;
  background-color: #f2fbf0;
  border: 1px solid #cceec3;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.03);
}

.seed-leaf-icon {
  color: #79d03a;
  font-size: 1.1rem;
}

.seedling-details {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.seed-title-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-main);
}

.seed-ratio {
  color: var(--text-muted);
}

.xp-level-progress-bg {
  width: 100%;
  height: 6px;
  background-color: #e2eaf0;
  border-radius: 4px;
  margin: 3px 0;
  overflow: hidden;
}

.xp-level-progress-fill {
  height: 100%;
  background-color: #79d03a;
  border-radius: 4px;
  transition: width 0.4s ease;
}

.xp-needed {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Averages Ticker widgets */
.averages-ticker {
  display: flex;
  gap: 20px;
}

.avg-widget {
  display: flex;
  align-items: center;
  gap: 8px;
}

.avg-widget i {
  font-size: 1.1rem;
}

.avg-widget .bolt-icon { color: var(--accent-yellow); }
.avg-widget .accuracy-icon { color: var(--accent-orange); }
.avg-widget .clock-icon-widget { color: #579828; }

.widget-details {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.widget-val {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
}

.widget-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 700;
}

/* Daily Goal Widget */
.daily-goal-widget {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 140px;
}

@media(min-width: 768px) {
  .daily-goal-widget {
    align-items: flex-end;
  }
}

.goal-header {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--text-muted);
}

.goal-add-icon {
  color: #79d03a;
}

.goal-time-label {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.time-target {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ==========================================================================
   Page Grid Layout (Sidebar + Content Column)
   ========================================================================== */

.page-container {
  max-width: 1200px;
  width: 100%;
  margin: 24px auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  flex-grow: 1;
}

@media(min-width: 820px) {
  .page-container {
    grid-template-columns: 240px 1fr;
  }
}

/* ==========================================================================
   Sidebar Column
   ========================================================================== */

.sidebar-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

/* Lessons Sidebar Navigation */
.sidebar-menu-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.menu-block-title {
  font-size: 0.75rem;
  font-weight: 750;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  padding-left: 8px;
}

.menu-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.menu-item-btn {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 4px rgba(0,0,0,0.01);
  transition: all 0.15s ease;
}

.menu-item-btn:hover {
  background-color: #f7fafc;
  border-color: #cbd5e1;
}

.menu-item-btn.active {
  background-color: var(--primary-blue);
  border-color: var(--primary-blue-dark);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 3px 0 var(--primary-blue-dark);
}

.arrow-indicator {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.menu-item-btn.active .arrow-indicator {
  color: #ffffff;
}

.premium-item span {
  color: var(--text-muted);
}

.premium-item:hover span {
  color: var(--text-main);
}

.gold-crown-icon {
  color: #fbbf24;
  filter: drop-shadow(0 1px 2px rgba(251,191,36,0.2));
}

.prob-keys-btn {
  text-align: left;
  padding: 12px 14px;
}

.btn-left-text {
  display: flex;
  flex-direction: column;
}

.prob-keys-btn strong {
  font-size: 0.85rem;
  color: var(--text-main);
}

.prob-keys-btn .subtext {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.problem-keyboard-icon {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ==========================================================================
   Main Content Column
   ========================================================================== */

.content-main {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.dashboard-panel {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--card-shadow);
}

/* ==========================================================================
   Lessons Content Elements (Screenshot Exact Clone)
   ========================================================================== */

/* Orange alert save banner */
.orange-alert-banner {
  background-color: var(--accent-orange);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  box-shadow: 0 3px 0 #b34b0d;
}

@media(min-width: 600px) {
  .orange-alert-banner {
    flex-direction: row;
    gap: 20px;
  }
}

.alert-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.alert-login-link {
  color: #ffffff;
  text-decoration: underline;
  font-weight: 700;
  font-size: 0.85rem;
}

.alert-signup-cta {
  background-color: #ffffff;
  border: none;
  color: var(--accent-orange);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 2px 0 rgba(0,0,0,0.1);
  transition: transform 0.1s;
}

.alert-signup-cta:active {
  transform: translateY(1.5px);
  box-shadow: none;
}

/* Lessons Progress card wrapper */
.lessons-progress-bar-card {
  background-color: #e2f2fc;
  border: 1px solid #bce1f7;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 28px;
}

.progress-bar-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

@media(min-width: 600px) {
  .progress-bar-header {
    flex-direction: row;
    gap: 20px;
  }
}

.progress-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-grow: 1;
  width: 100%;
}

.progress-pct-val {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--primary-blue-dark);
  min-width: 100px;
}

.lessons-bar-bg {
  flex-grow: 1;
  height: 10px;
  background-color: #ffffff;
  border: 1px solid #bce1f7;
  border-radius: 6px;
  overflow: hidden;
}

.lessons-bar-fill {
  height: 100%;
  background-color: var(--primary-blue);
  border-radius: 6px;
  transition: width 0.4s ease;
}

.print-cert-btn {
  background-color: var(--primary-blue);
  border: none;
  color: #ffffff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 3px 0 var(--primary-blue-dark);
}

.print-cert-btn.disabled-btn {
  background-color: #cbd5e1;
  color: #94a3b8;
  cursor: not-allowed;
  box-shadow: none;
}

/* Unit Blocks */
.lessons-unit-block {
  margin-bottom: 32px;
}

.unit-title-header {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-blue);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 8px;
  margin-bottom: 16px;
}

/* Lessons Cards List */
.lessons-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lesson-row-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 4px rgba(45,62,80,0.02);
  transition: box-shadow 0.2s ease;
}

.lesson-row-card:not(.locked):hover {
  box-shadow: 0 4px 10px rgba(45,62,80,0.06);
}

.lesson-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lesson-num {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f8fafc;
}

.lesson-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.time-limit-badge {
  background-color: #f1f5f9;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 8px;
}

.lesson-row-card.locked {
  opacity: 0.55;
  background-color: #fbfcfd;
}

/* Start Button custom states */
.lesson-start-btn {
  background-color: #e2eaf0;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 6px 20px;
  border-radius: 6px;
  cursor: pointer;
  min-width: 80px;
}

.lesson-start-btn:disabled {
  cursor: not-allowed;
}

.lesson-start-btn.active-yellow {
  background-color: var(--accent-yellow);
  border-bottom: 3px solid var(--accent-yellow-border);
  color: #4b3600;
  box-shadow: 0 2px 4px rgba(255,185,0,0.15);
  transition: transform 0.1s, border-bottom 0.1s;
}

.lesson-start-btn.active-yellow:hover {
  background-color: #ffc933;
}

.lesson-start-btn.active-yellow:active {
  transform: translateY(2.5px);
  border-bottom-width: 1px;
}

.lesson-row-card.completed {
  border-left: 4px solid #79d03a;
}

.lesson-row-card.completed .lesson-num {
  background-color: #f2fbf0;
  border-color: #79d03a;
  color: #79d03a;
}

/* ==========================================================================
   Typing Arena Panel
   ========================================================================== */

.typing-arena-panel {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--card-shadow);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.arena-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
}

.back-link-btn {
  background: none;
  border: none;
  color: var(--primary-blue);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.back-link-btn:hover {
  text-decoration: underline;
}

.test-title-tag {
  background-color: rgba(0, 130, 195, 0.1);
  color: var(--primary-blue);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 20px;
}

/* Stats Ticker */
.stats-ticker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background-color: #f7fafc;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 20px;
}

.ticker-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ticker-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ticker-val {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
}

.ticker-val .unit {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.alert-color { color: var(--primary-blue); }
.error-color { color: var(--letter-incorrect); }

/* Words display box container */
.typing-box-container {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 28px 32px;
  min-height: 140px;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 130, 195, 0.03), var(--card-shadow);
}

.hidden-input {
  position: absolute;
  top: -100px;
  left: -100px;
  opacity: 0;
}

.words-viewport {
  overflow: hidden;
  height: 165px; /* Fits 3 lines of larger standard text perfectly without cutting off letters at the bottom */
}

.typing-words {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 8px 0px; /* Column gap set to 0px to prevent double spacing since space character span exists */
  font-family: var(--font-mono);
  font-size: 1.95rem; /* Paragraph is thoda and big and readable */
  line-height: 3.0rem;
  user-select: none;
  pointer-events: none;
  position: relative;
  transition: transform 0.25s ease-in-out;
}

/* Letter spans styling */
.word {
  display: inline-flex;
  white-space: nowrap;
}

.letter {
  color: var(--letter-default);
}

.letter.correct {
  color: var(--letter-correct);
  background-color: var(--letter-correct-bg);
}

.letter.incorrect {
  color: var(--letter-incorrect);
  background-color: var(--letter-incorrect-bg);
  border-bottom: 2px solid var(--letter-incorrect);
}

/* Sliding cursors */
.typing-cursor {
  position: absolute;
  width: 2px;
  height: 2.2rem; /* Scaled up to match new 1.95rem font size height */
  background-color: var(--cursor-color);
  box-shadow: 0 0 4px var(--cursor-color);
  animation: cur-blink 1s infinite;
  transition: left 0.12s, top 0.12s;
  z-index: 5;
}

/* Focus Overlay box styling */
.focus-overlay-box {
  position: absolute;
  top: 76px; /* below stats bar */
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.94);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.focus-overlay-box.active {
  opacity: 1;
  pointer-events: all;
}

.focus-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--primary-blue);
  font-weight: 700;
  font-size: 1rem;
}

.focus-icon {
  font-size: 2.2rem;
  animation: key-pulse-vibe 1.2s infinite alternate;
}

/* Bottom Controls */
.arena-bottom-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.restart-cta {
  background-color: var(--primary-blue);
  border: none;
  color: #fff;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.restart-cta:hover {
  background-color: var(--primary-blue-hover);
}

.quick-hotkey-tip {
  font-size: 0.75rem;
  color: var(--text-muted);
}

kbd {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-main);
  box-shadow: 0 1.5px 0 #cbd5e1;
}

/* ==========================================================================
   Visual Keyboard Guide (Clean light-gray keycaps)
   ========================================================================== */

.keyboard-visualizer {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-width: 780px;
  width: 100%;
  margin: 0 auto;
}

.kbd-row {
  display: flex;
  gap: 5px;
  width: 100%;
}

.keycap {
  height: 40px;
  background: #f1f5f8;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: #4a5d6e;
  flex-grow: 1;
  flex-basis: 0;
  user-select: none;
  transition: all 0.1s ease;
}

/* Specific Sizes */
.backspace-cap { flex-grow: 1.8; }
.tab-cap { flex-grow: 1.4; }
.caps-cap { flex-grow: 1.7; }
.enter-cap { flex-grow: 2.1; }
.shift-left-cap { flex-grow: 2.2; }
.shift-right-cap { flex-grow: 2.6; }
.ctrl-cap, .win-cap, .alt-cap { flex-grow: 1.3; }
.space-cap { flex-grow: 7.8; }

.keycap.active {
  background: var(--primary-blue) !important;
  color: #fff !important;
  border-color: var(--primary-blue-dark) !important;
  transform: scale(0.94);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);
}

.keycap.target-key {
  background-color: rgba(0, 130, 195, 0.12) !important;
  border: 1px dashed var(--primary-blue) !important;
  color: var(--primary-blue) !important;
}

/* ==========================================================================
   Results Overlay & Certificates
   ========================================================================== */

.results-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(45, 62, 80, 0.4);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.results-container {
  background: var(--white);
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 45px rgba(0,0,0,0.18);
  border-radius: 20px;
  width: 100%;
  max-width: 800px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.results-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
}

.results-header-bar h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
}

.close-icon-btn {
  background: var(--bg-color);
  border: none;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-icon-btn:hover {
  background-color: #fee2e2;
  color: var(--letter-incorrect);
}

/* Results Content */
.results-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media(min-width: 768px) {
  .results-body {
    grid-template-columns: 1.1fr 1fr;
  }
}

.results-banner {
  background-color: #f7fafc;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.certificate-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: #79d03a;
  font-weight: 800;
  font-size: 0.75rem;
}

.award-icon {
  font-size: 2.2rem;
}

.main-metrics-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
}

.metric-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric-card.gold-border {
  grid-column: span 2;
  border: 2px solid var(--accent-yellow);
  background: rgba(255, 185, 0, 0.03);
}

.m-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.m-val {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
}

.metric-card.gold-border .m-val {
  font-size: 2.2rem;
  color: var(--primary-blue);
}

.m-unit {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

.chars-subtitle {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

.graph-box {
  background: #fbfcfe;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px;
  min-height: 220px;
  display: flex;
  align-items: center;
}

.graph-box canvas {
  width: 100% !important;
  height: 100% !important;
}

/* Footer CTAs */
.results-footer-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.action-btn-restart {
  background-color: var(--accent-yellow);
  border: none;
  border-bottom: 4px solid var(--accent-yellow-border);
  color: #4b3600;
  font-family: var(--font-sans);
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.action-btn-restart:hover {
  background-color: #ffc933;
}

.action-btn-restart:active {
  transform: translateY(2px);
  border-bottom-width: 1px;
}

.action-btn-back {
  background-color: #e2eaf0;
  border: none;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.action-btn-back:hover {
  background-color: #cbd5e1;
}

/* ==========================================================================
   Firebase Setup Guide overlay panel
   ========================================================================== */

.firebase-guide-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.guide-card {
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 100%;
  max-width: 520px;
  padding: 24px;
  box-shadow: 0 20px 45px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.guide-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.guide-header h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.guide-icon {
  color: var(--primary-blue);
}

.close-guide-x {
  background: var(--bg-color);
  border: none;
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-guide-x:hover {
  background-color: #fee2e2;
  color: var(--letter-incorrect);
}

.guide-body {
  font-size: 0.85rem;
  line-height: 1.5;
  color: #4a5d72;
}

.guide-intro {
  margin-bottom: 12px;
}

.guide-steps {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guide-steps li {
  font-weight: 500;
}

.guide-steps strong {
  color: var(--text-main);
}

.guide-link {
  color: var(--primary-blue);
  font-weight: 700;
  text-decoration: underline;
}

.guide-file-path {
  margin-top: 16px;
  padding: 10px 14px;
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.guide-file-path span {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.guide-file-path code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary-blue-dark);
  font-weight: bold;
}

.guide-footer {
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.primary-btn-guide {
  background-color: var(--primary-blue);
  border: none;
  color: #ffffff;
  font-family: var(--font-sans);
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 3px 0 var(--primary-blue-dark);
  transition: transform 0.1s;
}

.primary-btn-guide:active {
  transform: translateY(2px);
  box-shadow: none;
}

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

.app-footer {
  border-top: 1px solid var(--border-color);
  background: var(--white);
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media(min-width: 768px) {
  .app-footer {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ==========================================================================
   Keyframes
   ========================================================================== */

@keyframes cur-blink {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

@keyframes key-pulse-vibe {
  0% { transform: scale(1); filter: drop-shadow(0 1px 2px rgba(0, 130, 195, 0.2)); }
  100% { transform: scale(1.1); filter: drop-shadow(0 4px 10px rgba(0, 130, 195, 0.5)); }
}

.hidden {
  display: none !important;
}