/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #1a1a24;
  --border: #2a2a3a;
  --accent: #00e5ff;
  --accent2: #7c3aed;
  --green: #00e676;
  --red: #ff1744;
  --yellow: #ffd600;
  --text: #e8e8f0;
  --text2: #8888aa;
  --text3: #55556a;
  --card-bg: #13131e;
  --radius: 12px;
  --radius-sm: 8px;
  --font-mono: 'Space Mono', monospace;
  --font-main: 'Syne', sans-serif;
  --shadow: 0 4px 24px rgba(0,0,0,.4);
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
  --bg: #f0f2f5;
  --bg2: #e4e7ed;
  --bg3: #d8dce5;
  --border: #c0c6d4;
  --accent: #0077cc;
  --accent2: #6d28d9;
  --green: #16a34a;
  --red: #dc2626;
  --yellow: #d97706;
  --text: #111827;
  --text2: #374151;
  --text3: #6b7280;
  --card-bg: #ffffff;
  --shadow: 0 4px 24px rgba(0,0,0,.1);
}

[data-theme="light"] .nav {
  background: rgba(240,242,245,.95);
}

[data-theme="light"] .start-overlay {
  background: rgba(240,242,245,.75);
}

[data-theme="light"] .hero-title {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .type-input {
  background: transparent;
}

[data-theme="light"] .text-display .cursor {
  background: var(--accent);
}

[data-theme="light"] .mode-btn.active {
  color: #fff;
}

[data-theme="light"] .btn-restart {
  color: #fff;
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, border-color .2s, color .2s;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  transition: background .25s, color .25s;
}

/* ===== NAV ===== */
.nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: .9rem 2rem;
  background: rgba(10,10,15,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}
.logo {
  font-size: 1.2rem; font-weight: 800;
  color: var(--accent); text-decoration: none; letter-spacing: -.5px;
}
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a {
  color: var(--text2); text-decoration: none; font-size: .9rem;
  font-weight: 600; letter-spacing: .02em; transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: .8rem; }
.hamburger {
  display: none; background: none; border: none;
  color: var(--text); font-size: 1.4rem; cursor: pointer;
}
.mobile-menu {
  display: none; flex-direction: column;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 1rem 2rem; gap: .8rem;
}
.mobile-menu a { color: var(--text2); text-decoration: none; font-weight: 600; font-size: .95rem; }
.mobile-menu.open { display: flex; }

/* ===== AD BANNERS ===== */
.ad-banner {
  display: flex; flex-direction: column; align-items: center;
  padding: .5rem; background: var(--bg2);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.ad-banner span { font-size: 10px; color: var(--text3); margin-bottom: 4px; letter-spacing: .05em; }
.ad-placeholder {
  width: 100%; max-width: 728px; height: 90px;
  background: var(--bg3); border: 1px dashed var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text3); font-size: .8rem; border-radius: var(--radius-sm);
}
.mid-ad .ad-placeholder { max-width: 336px; height: 280px; }

/* ===== MAIN ===== */
.main { max-width: 860px; margin: 0 auto; padding: 2rem 1.2rem 3rem; }

/* ===== HERO ===== */
.hero-section { text-align: center; margin-bottom: 2rem; }
.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800; letter-spacing: -1.5px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub { color: var(--text2); font-size: 1rem; margin-top: .4rem; }

/* ===== CONTROLS ===== */
.controls {
  display: flex; gap: 1rem; flex-wrap: wrap;
  justify-content: center; margin-bottom: 1.5rem;
}
.mode-group { display: flex; align-items: center; gap: .5rem; }
.mode-label { font-size: .8rem; color: var(--text3); font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.mode-btn {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text2); padding: .35rem .85rem;
  border-radius: 20px; font-size: .85rem; font-weight: 700;
  cursor: pointer; transition: all .2s; font-family: var(--font-main);
}
.mode-btn:hover { border-color: var(--accent); color: var(--accent); }
.mode-btn.active { background: var(--accent); border-color: var(--accent); color: #000; }

/* ===== STATS BAR ===== */
.stats-bar {
  display: flex; justify-content: center; gap: 1.5rem;
  margin-bottom: 1.2rem; flex-wrap: wrap;
}
.stat-item {
  display: flex; flex-direction: column; align-items: center;
  background: var(--card-bg); border: 1px solid var(--border);
  padding: .6rem 1.2rem; border-radius: var(--radius-sm); min-width: 80px;
}
.stat-item.highlight { border-color: var(--accent); box-shadow: 0 0 18px rgba(0,229,255,.12); }
.stat-val { font-size: 1.6rem; font-weight: 800; font-family: var(--font-mono); color: var(--text); }
.stat-item.highlight .stat-val { color: var(--accent); }
.stat-name { font-size: .7rem; color: var(--text3); text-transform: uppercase; letter-spacing: .06em; }

/* ===== TYPING WRAPPER ===== */
.typing-wrapper {
  position: relative; margin-bottom: 1.5rem;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color .3s;
}
.typing-wrapper.active { border-color: var(--accent); box-shadow: 0 0 30px rgba(0,229,255,.08); }

.text-display {
  padding: 1.5rem; font-family: var(--font-mono); font-size: 1.05rem;
  line-height: 1.9; color: var(--text3); letter-spacing: .02em;
  min-height: 120px; user-select: none; position: relative; z-index: 1;
}
.text-display .correct { color: var(--green); }
.text-display .wrong { color: var(--red); background: rgba(255,23,68,.15); border-radius: 2px; }
.text-display .cursor {
  display: inline-block; width: 2px; height: 1.1em;
  background: var(--accent); vertical-align: text-bottom;
  animation: blink .7s step-end infinite; margin-left: 1px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.type-input {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  opacity: 0; z-index: 2; resize: none; cursor: text;
  font-size: 1rem; padding: 1.5rem;
  background: transparent; border: none; outline: none;
  font-family: var(--font-mono); color: transparent; caret-color: transparent;
}

.start-overlay {
  position: absolute; inset: 0; z-index: 3;
  display: flex; align-items: center; justify-content: center;
  background: rgba(10,10,15,.7); backdrop-filter: blur(4px);
  cursor: pointer; border-radius: var(--radius);
}
.start-content { text-align: center; }
.start-icon { font-size: 2.5rem; margin-bottom: .6rem; }
.start-content p { color: var(--text2); font-size: .95rem; font-weight: 600; }
.start-overlay.hidden { display: none; }

/* ===== RESULT PANEL ===== */
.result-panel {
  background: var(--card-bg); border: 1px solid var(--accent);
  border-radius: var(--radius); padding: 2rem;
  text-align: center; margin-bottom: 2rem;
  animation: fadeUp .4s ease;
}
@keyframes fadeUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:none} }

.result-title {
  font-size: 1.4rem; font-weight: 800;
  color: var(--accent); margin-bottom: 1.5rem; letter-spacing: -.5px;
}
.result-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  margin-bottom: 1.5rem;
}
.result-card {
  background: var(--bg3); border-radius: var(--radius-sm);
  padding: 1rem .5rem; border: 1px solid var(--border);
}
.r-val { display: block; font-size: 2rem; font-weight: 800; font-family: var(--font-mono); }
.r-label { font-size: .72rem; color: var(--text3); text-transform: uppercase; letter-spacing: .06em; }
.r-wpm .r-val { color: var(--accent); }
.r-acc .r-val { color: var(--green); }
.r-err .r-val { color: var(--red); }

.result-rank {
  font-size: 1.1rem; font-weight: 700; padding: .6rem;
  margin-bottom: 1.2rem; border-radius: var(--radius-sm);
}

.result-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-restart {
  background: var(--accent); color: #000; border: none;
  padding: .7rem 1.8rem; border-radius: 30px; font-weight: 800;
  font-size: .95rem; cursor: pointer; font-family: var(--font-main);
  transition: transform .2s, box-shadow .2s;
}
.btn-restart:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,229,255,.3); }
.btn-share {
  background: transparent; color: var(--accent); border: 1.5px solid var(--accent);
  padding: .7rem 1.8rem; border-radius: 30px; font-weight: 800;
  font-size: .95rem; cursor: pointer; font-family: var(--font-main);
  transition: background .2s;
}
.btn-share:hover { background: rgba(0,229,255,.1); }

/* ===== INFO SECTION ===== */
.info-section { margin: 3rem 0 2rem; }
.info-section h2, .faq-section h2 {
  font-size: 1.5rem; font-weight: 800; margin-bottom: 1.2rem;
  letter-spacing: -.5px; color: var(--text);
}
.info-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
}
.info-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem;
  text-align: center;
}
.info-icon { font-size: 1.8rem; display: block; margin-bottom: .5rem; }
.info-card strong { display: block; font-size: .9rem; color: var(--text); margin-bottom: .4rem; }
.info-card p { font-size: .82rem; color: var(--text2); line-height: 1.5; }

/* ===== FAQ ===== */
.faq-section { margin-bottom: 2rem; }
.faq-list { display: flex; flex-direction: column; gap: .6rem; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-q {
  width: 100%; background: none; border: none; color: var(--text);
  font-family: var(--font-main); font-weight: 700; font-size: .92rem;
  padding: 1rem 1.2rem; text-align: left; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-q span { color: var(--accent); font-size: 1.2rem; }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s;
  font-size: .87rem; color: var(--text2); padding: 0 1.2rem; line-height: 1.6;
}
.faq-a.open { max-height: 200px; padding: 0 1.2rem 1rem; }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 2rem 1.2rem;
}
.footer-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.footer-brand { margin-bottom: 1rem; }
.footer-brand p { font-size: .85rem; color: var(--text2); margin-top: .3rem; }
.footer-brand a { color: var(--accent); text-decoration: none; }
.footer-links { display: flex; gap: 1.2rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1rem; }
.footer-links a { color: var(--text2); text-decoration: none; font-size: .85rem; transition: color .2s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-size: .78rem; color: var(--text3); }

/* ===== PAGE STYLES (for sub pages) ===== */
.page-main { max-width: 800px; margin: 0 auto; padding: 3rem 1.2rem; }
.page-main h1 { font-size: 2rem; font-weight: 800; color: var(--accent); margin-bottom: .5rem; }
.page-main .last-updated { font-size: .82rem; color: var(--text3); margin-bottom: 2rem; }
.page-main h2 { font-size: 1.15rem; font-weight: 700; color: var(--text); margin: 1.8rem 0 .6rem; }
.page-main p { color: var(--text2); font-size: .92rem; line-height: 1.7; margin-bottom: .8rem; }
.page-main ul { color: var(--text2); font-size: .92rem; line-height: 1.7; padding-left: 1.4rem; margin-bottom: .8rem; }
.page-main a { color: var(--accent); }
.page-main .contact-form { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; margin-top: 1.5rem; }
.page-main .form-group { margin-bottom: 1.2rem; }
.page-main label { display: block; font-size: .85rem; font-weight: 700; color: var(--text2); margin-bottom: .4rem; }
.page-main input, .page-main textarea, .page-main select {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: .7rem 1rem; border-radius: var(--radius-sm);
  font-family: var(--font-main); font-size: .9rem; outline: none; transition: border-color .2s;
}
.page-main input:focus, .page-main textarea:focus { border-color: var(--accent); }
.page-main textarea { min-height: 130px; resize: vertical; }
.page-main .submit-btn {
  background: var(--accent); color: #000; border: none;
  padding: .75rem 2rem; border-radius: 30px; font-weight: 800;
  font-size: .95rem; cursor: pointer; font-family: var(--font-main);
}

/* ===== BLOG STYLES ===== */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; margin-top: 1.5rem; }
.blog-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem; text-decoration: none; display: block; transition: border-color .2s, transform .2s; }
.blog-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.blog-card .blog-tag { font-size: .72rem; font-weight: 700; color: var(--accent); letter-spacing: .05em; text-transform: uppercase; margin-bottom: .5rem; }
.blog-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: .5rem; line-height: 1.4; }
.blog-card p { font-size: .83rem; color: var(--text2); line-height: 1.5; }
.blog-card .blog-date { font-size: .76rem; color: var(--text3); margin-top: .8rem; }

/* ===== BLOG POST PAGE ===== */
.blog-post { max-width: 760px; margin: 0 auto; padding: 3rem 1.2rem 4rem; }
.blog-post-header { margin-bottom: 2.5rem; }
.blog-post-tag { font-size: .75rem; font-weight: 700; color: var(--accent); letter-spacing: .06em; text-transform: uppercase; margin-bottom: .6rem; }
.blog-post h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; color: var(--text); line-height: 1.25; letter-spacing: -.5px; margin-bottom: .6rem; }
.blog-post-meta { font-size: .82rem; color: var(--text3); margin-bottom: 1.5rem; }
.blog-post-intro { font-size: 1.05rem; color: var(--text2); line-height: 1.75; padding: 1.2rem 1.4rem; background: var(--card-bg); border-left: 3px solid var(--accent); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-bottom: 2rem; }
.blog-post h2 { font-size: 1.25rem; font-weight: 800; color: var(--text); margin: 2.2rem 0 .8rem; letter-spacing: -.3px; }
.blog-post h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin: 1.6rem 0 .6rem; }
.blog-post p { color: var(--text2); font-size: .95rem; line-height: 1.8; margin-bottom: 1rem; }
.blog-post ul, .blog-post ol { color: var(--text2); font-size: .95rem; line-height: 1.8; padding-left: 1.5rem; margin-bottom: 1rem; }
.blog-post li { margin-bottom: .4rem; }
.blog-post strong { color: var(--text); font-weight: 700; }
.blog-post a { color: var(--accent); }
.tip-box { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem 1.4rem; margin: 1.5rem 0; }
.tip-box .tip-label { font-size: .75rem; font-weight: 700; color: var(--accent); letter-spacing: .06em; text-transform: uppercase; margin-bottom: .4rem; }
.tip-box p { margin: 0; font-size: .9rem; }
.blog-back { display: inline-flex; align-items: center; gap: .4rem; color: var(--text2); font-size: .88rem; font-weight: 700; text-decoration: none; margin-bottom: 2rem; transition: color .2s; }
.blog-back:hover { color: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { gap: .8rem; }
  .stat-item { min-width: 65px; padding: .5rem .8rem; }
  .stat-val { font-size: 1.3rem; }
  .ad-placeholder { height: 60px; }
  .mid-ad .ad-placeholder { height: 250px; }
}