/* ========================================================= YAS Marketing Site — style.css Mobile-first, dark mode, polished ========================================================= */ /* ── Reset & Base ─────────────────────────────────────── */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } :root { --primary: #2255cc; --primary-dark: #1a3fa0; --primary-light: #4d7aee; --accent: #ff6b35; --accent-dark: #e55a26; --bg: #f8f9ff; --surface: #ffffff; --surface-2: #f0f2fc; --text: #1a1f3a; --text-muted: #5a6080; --border: #dde1f0; --shadow: 0 4px 24px rgba(34, 85, 204, 0.10); --shadow-lg: 0 12px 48px rgba(34, 85, 204, 0.16); --radius: 14px; --radius-sm: 8px; --radius-lg: 24px; --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif; --font-mono: 'SF Mono', 'Fira Code', monospace; --transition: 0.2s ease; /* Sudoku grid */ --cell-size: clamp(34px, 9vw, 56px); --cell-font: clamp(16px, 4vw, 26px); --grid-border: 3px; --cell-border: 1px; /* Grid colours */ --cell-bg: #ffffff; --cell-given-bg: #eef1fc; --cell-given-color: #1a1f3a; --cell-user-color: #2255cc; --cell-selected-bg: #c5d4f8; --cell-peer-bg: #e8ecfc; --cell-conflict-bg: #ffe3e0; --cell-conflict-color: #cc2222; --cell-same-digit-bg: #bfcef5; --cell-correct-color: #1a7a4a; --grid-line: #c8ceea; --grid-box-line: #2255cc; --note-color: #7788cc; } @media (prefers-color-scheme: dark) { :root { --bg: #0d0f1a; --surface: #161928; --surface-2: #1e2236; --text: #e8eaf8; --text-muted: #8890b8; --border: #2a2f4a; --shadow: 0 4px 24px rgba(0,0,0,0.4); --shadow-lg: 0 12px 48px rgba(0,0,0,0.5); --cell-bg: #161928; --cell-given-bg: #1e2448; --cell-given-color: #c8d4f8; --cell-user-color: #7fa8ff; --cell-selected-bg: #2a3a6a; --cell-peer-bg: #1c2240; --cell-conflict-bg: #3a1a1a; --cell-conflict-color: #ff7070; --cell-same-digit-bg: #243060; --cell-correct-color: #4adc8a; --grid-line: #2a3050; --grid-box-line: #4d7aee; --note-color: #6677cc; } } /* Manual dark/light override via data-color-scheme on */ html[data-color-scheme="dark"] { --bg: #0d0f1a; --surface: #161928; --surface-2: #1e2236; --text: #e8eaf8; --text-muted: #8890b8; --border: #2a2f4a; --shadow: 0 4px 24px rgba(0,0,0,0.4); --shadow-lg: 0 12px 48px rgba(0,0,0,0.5); --cell-bg: #161928; --cell-given-bg: #1e2448; --cell-given-color: #c8d4f8; --cell-user-color: #7fa8ff; --cell-selected-bg: #2a3a6a; --cell-peer-bg: #1c2240; --cell-conflict-bg: #3a1a1a; --cell-conflict-color: #ff7070; --cell-same-digit-bg: #243060; --cell-correct-color: #4adc8a; --grid-line: #2a3050; --grid-box-line: #4d7aee; --note-color: #6677cc; } html[data-color-scheme="light"] { --bg: #f8f9ff; --surface: #ffffff; --surface-2: #f0f2fc; --text: #1a1f3a; --text-muted: #5a6080; --border: #dde1f0; --shadow: 0 4px 24px rgba(34, 85, 204, 0.10); --shadow-lg: 0 12px 48px rgba(34, 85, 204, 0.16); --cell-bg: #ffffff; --cell-given-bg: #eef1fc; --cell-given-color: #1a1f3a; --cell-user-color: #2255cc; --cell-selected-bg: #c5d4f8; --cell-peer-bg: #e8ecfc; --cell-conflict-bg: #ffe3e0; --cell-conflict-color: #cc2222; --cell-same-digit-bg: #bfcef5; --cell-correct-color: #1a7a4a; --grid-line: #c8ceea; --grid-box-line: #2255cc; --note-color: #7788cc; } /* ── Dark/Light mode via data-mode attribute ──────────────── */ [data-mode="light"] { --bg: #f5f5f0; --bg-card: #ffffff; --bg-hero: #eeeee8; --text: #1a1a2e; --text-muted: #555566; --border: #d0d0d8; --accent: #1a4db5; --accent-hover: #1240a0; --sudoku-bg: #ffffff; --sudoku-given: #1a1a2e; --sudoku-entered: #1a4db5; --sudoku-border: #ccccdd; --sudoku-box-border: #888899; } html { scroll-behavior: smooth; font-size: 16px; } body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; } img, svg { display: block; max-width: 100%; } a { color: var(--primary); text-decoration: none; } a:hover { text-decoration: underline; } button { cursor: pointer; font-family: var(--font); border: none; outline: none; } button:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; } /* ── Typography ───────────────────────────────────────── */ h1, h2, h3, h4 { line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; } h1 { font-size: clamp(2.2rem, 6vw, 4rem); } h2 { font-size: clamp(1.6rem, 4vw, 2.6rem); } h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); } .tag { display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 4px 12px; border-radius: 100px; background: var(--primary); color: #fff; margin-bottom: 1rem; } /* ── Layout helpers ───────────────────────────────────── */ .container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; } section { padding: 80px 0; } @media (max-width: 600px) { section { padding: 56px 0; } } /* ── Navigation ───────────────────────────────────────── */ .site-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: var(--surface); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); transition: background var(--transition), box-shadow var(--transition); } .site-nav.scrolled { background: var(--surface); box-shadow: var(--shadow); } .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; } .nav-logo { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.04em; color: var(--text); text-decoration: none; } .nav-logo .logo-accent { color: var(--accent); } .nav-links { display: flex; align-items: center; gap: 8px; list-style: none; } .nav-links a, .nav-links button { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); background: none; border: none; padding: 6px 12px; border-radius: var(--radius-sm); transition: color var(--transition), background var(--transition); cursor: pointer; text-decoration: none; } .nav-links a:hover, .nav-links button:hover { color: var(--text); background: var(--surface-2); text-decoration: none; } .nav-cta { background: var(--primary) !important; color: #fff !important; padding: 8px 20px !important; border-radius: 100px !important; } .nav-cta:hover { background: var(--primary-dark) !important; } .nav-lang-btn { font-size: 0.85rem !important; font-weight: 700 !important; border: 2px solid var(--border) !important; padding: 6px 14px !important; border-radius: 100px !important; } .theme-toggle-btn { background: none; border: 1px solid var(--border, rgba(128,128,128,0.3)); border-radius: 6px; padding: 0.3rem 0.5rem; font-size: 1rem; cursor: pointer; color: inherit; line-height: 1; transition: background 0.15s; } .theme-toggle-btn:hover { background: rgba(128,128,128,0.1); } /* Mobile menu */ .menu-toggle { display: none; background: none; border: none; padding: 8px; flex-direction: column; gap: 5px; cursor: pointer; } .menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); } @media (max-width: 720px) { .menu-toggle { display: flex; } .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--surface); flex-direction: column; padding: 16px 20px 24px; box-shadow: var(--shadow-lg); gap: 4px; } .nav-links.open { display: flex; } .nav-links a, .nav-links button { width: 100%; text-align: left; padding: 10px 16px; font-size: 1rem; } } /* ── Hero ─────────────────────────────────────────────── */ .hero { min-height: 100svh; display: flex; align-items: center; padding-top: 64px; background: linear-gradient(145deg, var(--bg) 0%, color-mix(in srgb, var(--primary) 6%, var(--bg)) 100%); position: relative; overflow: hidden; } .hero::before { content: ''; position: absolute; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--primary) 12%, transparent) 0%, transparent 70%); top: -200px; right: -200px; pointer-events: none; } .hero::after { content: ''; position: absolute; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--accent) 8%, transparent) 0%, transparent 70%); bottom: -100px; left: -100px; pointer-events: none; } .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; } .hero-content { position: relative; z-index: 1; } .hero-headline { color: var(--text); margin-bottom: 20px; } .hero-headline span { color: var(--primary); } .hero-tagline { font-size: clamp(1.05rem, 2.2vw, 1.25rem); font-weight: 600; color: var(--primary); margin-bottom: 16px; max-width: 480px; line-height: 1.4; } .hero-sub { font-size: clamp(1rem, 2vw, 1.18rem); color: var(--text-muted); margin-bottom: 36px; max-width: 480px; } .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; } .btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; font-size: 1.05rem; font-weight: 700; padding: 14px 32px; border-radius: 100px; border: none; transition: background var(--transition), transform var(--transition), box-shadow var(--transition); text-decoration: none; cursor: pointer; box-shadow: 0 4px 20px rgba(34, 85, 204, 0.35); } .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(34, 85, 204, 0.45); text-decoration: none; color: #fff; } .btn-secondary { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--text); font-size: 1.05rem; font-weight: 600; padding: 14px 28px; border-radius: 100px; border: 2px solid var(--border); transition: border-color var(--transition), background var(--transition), transform var(--transition); cursor: pointer; text-decoration: none; } .btn-secondary:hover { border-color: var(--primary); background: var(--surface-2); transform: translateY(-2px); text-decoration: none; color: var(--text); } /* Hero grid illustration */ .hero-visual { display: flex; flex-direction: column; align-items: center; gap: 16px; position: relative; z-index: 1; } .hero-grid-demo { background: var(--surface); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-lg); position: relative; } .mini-grid { display: grid; grid-template-columns: repeat(9, 1fr); gap: 0; border: var(--grid-border) solid var(--grid-box-line); border-radius: var(--radius-sm); overflow: hidden; width: min(280px, 80vw); aspect-ratio: 1; } .mini-cell { display: flex; align-items: center; justify-content: center; font-size: clamp(9px, 2vw, 14px); font-weight: 700; border: 1px solid var(--grid-line); background: var(--cell-bg); color: var(--cell-given-color); aspect-ratio: 1; transition: background var(--transition); } .mini-cell:nth-child(3n):not(:nth-child(9n)) { border-right: 2px solid var(--grid-box-line); } .mini-cell:nth-child(n+19):nth-child(-n+27), .mini-cell:nth-child(n+46):nth-child(-n+54) { border-bottom: 2px solid var(--grid-box-line); } .mini-cell.given { background: var(--cell-given-bg); } .mini-cell.hl { background: var(--cell-selected-bg); color: var(--primary); } .mini-cell.accent { background: color-mix(in srgb, var(--accent) 20%, var(--cell-bg)); color: var(--accent-dark); } .mini-header { display: flex; justify-content: space-between; align-items: center; width: 100%; max-width: 210px; padding: 3px 8px; background: var(--cell-given-bg); border-radius: 5px; font-size: 10px; font-weight: 700; color: var(--cell-given-color); } .mini-numpad { display: grid; grid-template-columns: repeat(9, 1fr); gap: 2px; width: 100%; max-width: 210px; } .mini-num { display: flex; align-items: center; justify-content: center; aspect-ratio: 1; background: color-mix(in srgb, var(--primary) 12%, var(--cell-given-bg)); border-radius: 3px; font-size: 10px; font-weight: 700; color: var(--primary); border: 1px solid var(--grid-box-line); } .mini-controls { display: flex; gap: 2px; align-items: center; width: 100%; max-width: 210px; } .mini-ctrl { flex: 1; display: flex; align-items: center; justify-content: center; aspect-ratio: 1; background: color-mix(in srgb, var(--primary) 18%, var(--cell-given-bg)); border-radius: 3px; font-size: 9px; border: 1px solid var(--grid-box-line); color: var(--primary); } .hero-badge { position: absolute; top: -12px; right: -12px; background: var(--accent); color: #fff; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.04em; padding: 6px 14px; border-radius: 100px; transform: rotate(8deg); box-shadow: 0 4px 12px rgba(255,107,53,0.4); } .theme-demo-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 600; } /* ── iPhone 15 Pro mockup ─────────────────────────────── */ .phone-wrap { position: relative; display: inline-block; margin: 0 auto; /* Extra horizontal room for side buttons */ padding: 0 6px; } /* Volume buttons (left) */ .phone-wrap::before { content: ''; position: absolute; left: 0; top: 88px; width: 3px; height: 28px; background: #3a3a3c; border-radius: 2px 0 0 2px; box-shadow: 0 38px 0 #3a3a3c, 0 72px 0 #3a3a3c; } /* Power button (right) */ .phone-wrap::after { content: ''; position: absolute; right: 0; top: 112px; width: 3px; height: 54px; background: #3a3a3c; border-radius: 0 2px 2px 0; } .phone-frame { position: relative; width: 260px; background: linear-gradient(160deg, #3a3a3c 0%, #1c1c1e 50%, #2c2c2e 100%); border-radius: 48px; padding: 10px; box-shadow: inset 0 1px 0 rgba(255,255,255,0.12), inset -1px 0 0 rgba(255,255,255,0.04), 0 0 0 1px #111, 0 40px 120px rgba(0,0,0,0.8), 0 8px 24px rgba(0,0,0,0.5); flex-shrink: 0; } /* Home indicator */ .phone-frame::after { content: ''; position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); width: 80px; height: 4px; background: rgba(255,255,255,0.22); border-radius: 2px; } .phone-screen { border-radius: 40px; overflow: hidden; min-height: 500px; position: relative; } /* Status bar */ .phone-status-bar { position: absolute; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 10px 18px 0; font-size: 10px; font-weight: 600; color: rgba(255,255,255,0.8); letter-spacing: 0.02em; z-index: 5; } .phone-icons { font-size: 9px; letter-spacing: 1px; } /* Dynamic Island */ .dynamic-island { position: absolute; top: 12px; left: 50%; transform: translateX(-50%); width: 86px; height: 24px; background: #000; border-radius: 12px; box-shadow: 0 0 0 1px rgba(255,255,255,0.06); z-index: 5; } .phone-screen .hero-grid-demo { display: flex; flex-direction: column; align-items: center; justify-content: flex-start; padding: 54px 0 12px; gap: 3px; width: 100%; min-height: 500px; box-shadow: none; border-radius: 0; } .phone-screen .hero-badge { position: static; transform: rotate(8deg); align-self: flex-end; margin: 0 12px 1px 0; font-size: 0.45rem; padding: 2px 6px; } .phone-screen .mini-grid, .phone-screen #hero-mini-grid { width: 207px !important; max-width: 207px !important; min-width: 0; aspect-ratio: auto !important; overflow: visible; border-width: 2px !important; } .phone-screen .mini-header { max-width: 207px; font-size: 0.65rem; } .phone-screen .mini-numpad { max-width: 207px; gap: 2px; } .phone-screen .mini-controls { max-width: 207px; gap: 1px; } .phone-screen .mini-cell { font-size: 11px !important; border-width: 1px !important; } .phone-screen .mini-cell:nth-child(3n) { border-right-width: 2px !important; } .phone-screen .mini-cell:nth-child(n+19):nth-child(-n+27), .phone-screen .mini-cell:nth-child(n+46):nth-child(-n+54) { border-bottom-width: 2px !important; } /* Light mode phone */ [data-mode="light"] .phone-frame { background: linear-gradient(160deg, #e2e2e6 0%, #c8c8cc 50%, #d8d8dc 100%); box-shadow: inset 0 1px 0 rgba(255,255,255,0.8), inset -1px 0 0 rgba(255,255,255,0.3), 0 0 0 1px #999, 0 40px 120px rgba(0,0,0,0.25), 0 8px 24px rgba(0,0,0,0.12); } [data-mode="light"] .phone-frame::after { background: rgba(0,0,0,0.18); } [data-mode="light"] .phone-wrap::before, [data-mode="light"] .phone-wrap::after { background: #bebec2; } [data-mode="light"] .phone-screen { background: #f0f0f5; } [data-mode="light"] .phone-status-bar { color: rgba(0,0,0,0.7); } [data-mode="light"] .dynamic-island { background: #111; } @media (max-width: 860px) { .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; } .hero-sub { margin: 0 auto 36px; } .hero-actions { justify-content: center; } .hero-visual { order: -1; } } /* ── Section headers ──────────────────────────────────── */ .section-header { text-align: center; margin-bottom: 56px; } .section-header h2 { margin-bottom: 12px; } .section-header p { font-size: 1.05rem; color: var(--text-muted); max-width: 520px; margin: 0 auto; } /* ── Features ─────────────────────────────────────────── */ .features { background: var(--surface); } .features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 24px; } .feature-card { background: var(--bg); border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--border); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); } .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary-light); } .feature-icon { font-size: 2.2rem; margin-bottom: 14px; line-height: 1; } .feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; color: var(--text); } .feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.55; } /* ── Daily Challenge ──────────────────────────────────── */ .daily { background: var(--bg); } .daily-inner { display: grid; grid-template-columns: auto 1fr; gap: 48px; align-items: start; justify-content: center; max-width: 900px; margin: 0 auto; } /* Puzzle container */ .puzzle-wrap { display: flex; flex-direction: column; align-items: center; gap: 16px; position: relative; } .puzzle-stats-row { display: flex; gap: 24px; font-size: 0.85rem; color: var(--text-muted); font-weight: 600; width: 100%; justify-content: space-between; } .puzzle-stats-row .stat { display: flex; align-items: center; gap: 6px; } .puzzle-stats-row .stat-val { color: var(--text); font-size: 1.05rem; font-variant-numeric: tabular-nums; } /* ── Sudoku Grid ──────────────────────────────────────── */ #sudoku-grid { display: grid; grid-template-columns: repeat(9, var(--cell-size)); grid-template-rows: repeat(9, var(--cell-size)); border: var(--grid-border) solid var(--grid-box-line); border-radius: var(--radius-sm); overflow: hidden; background: var(--grid-box-line); box-shadow: var(--shadow-lg); gap: 0; user-select: none; touch-action: manipulation; } .sudoku-cell { display: flex; align-items: center; justify-content: center; font-size: var(--cell-font); font-weight: 700; background: var(--cell-bg); color: var(--cell-user-color); cursor: pointer; transition: background var(--transition), color var(--transition); border-right: var(--cell-border) solid var(--grid-line); border-bottom: var(--cell-border) solid var(--grid-line); position: relative; overflow: hidden; } .sudoku-cell:hover:not(.given):not(.selected) { background: color-mix(in srgb, var(--primary) 6%, var(--cell-bg)); } /* Box borders */ .sudoku-cell.box-left { border-left: 0; } .sudoku-cell.box-top { border-top: 0; } .sudoku-cell.box-right { border-right: 0; } .sudoku-cell.box-bottom { border-bottom: 0; } /* 3×3 thick box separators via nth-child */ .sudoku-cell:nth-child(3n):not(:nth-child(9n)) { border-right: 2px solid var(--grid-box-line); } .sudoku-cell:nth-child(n+19):nth-child(-n+27), .sudoku-cell:nth-child(n+46):nth-child(-n+54) { border-bottom: 2px solid var(--grid-box-line); } .sudoku-cell.given { background: var(--cell-given-bg); color: var(--cell-given-color); cursor: default; font-weight: 800; } .sudoku-cell.selected { background: var(--cell-selected-bg); color: var(--primary); z-index: 1; } .sudoku-cell.peer { background: var(--cell-peer-bg); } .sudoku-cell.same-digit { background: var(--cell-same-digit-bg); } .sudoku-cell.conflict { background: var(--cell-conflict-bg); color: var(--cell-conflict-color); } .sudoku-cell.correct { color: var(--cell-correct-color); } /* Shake animation for mistakes */ @keyframes shake { 0%, 100% { transform: translateX(0); } 20% { transform: translateX(-4px); } 40% { transform: translateX(4px); } 60% { transform: translateX(-3px); } 80% { transform: translateX(3px); } } .sudoku-cell.shake { animation: shake 0.35s ease; } /* Notes grid inside cell */ .sudoku-cell.has-notes { cursor: pointer; } .note-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); width: 100%; height: 100%; padding: 1px; } .note-grid span { display: flex; align-items: center; justify-content: center; font-size: clamp(6px, 1.5vw, 9px); font-weight: 600; color: var(--note-color); line-height: 1; } /* ── Controls below grid ──────────────────────────────── */ .grid-controls { display: flex; gap: 8px; width: 100%; justify-content: space-between; } .ctrl-btn { display: flex; flex-direction: column; align-items: center; gap: 4px; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 8px 12px; font-size: 0.7rem; font-weight: 700; color: var(--text-muted); transition: background var(--transition), border-color var(--transition), color var(--transition); min-width: 48px; } .ctrl-btn:hover { background: var(--surface-2); border-color: var(--primary); color: var(--primary); } .ctrl-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; } .ctrl-btn .ctrl-icon { font-size: 1.2rem; line-height: 1; } /* ── Number Pad ───────────────────────────────────────── */ #number-pad { display: grid; grid-template-columns: repeat(9, 1fr); gap: 6px; width: 100%; } .num-btn { display: flex; align-items: center; justify-content: center; aspect-ratio: 1; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: clamp(14px, 3vw, 22px); font-weight: 700; color: var(--primary); transition: background var(--transition), border-color var(--transition), transform 0.1s; } .num-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: scale(1.08); } .num-btn:active { transform: scale(0.96); } /* ── Congrats Overlay ─────────────────────────────────── */ .congrats-overlay { position: absolute; inset: -8px; background: color-mix(in srgb, var(--primary) 92%, #000); border-radius: var(--radius); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 32px 24px; opacity: 0; pointer-events: none; transform: scale(0.95); transition: opacity 0.35s ease, transform 0.35s ease; z-index: 10; gap: 16px; color: #fff; } .congrats-overlay.visible { opacity: 1; pointer-events: all; transform: scale(1); } .congrats-title { font-size: clamp(1.3rem, 4vw, 1.8rem); font-weight: 900; color: #fff; } .congrats-sub { font-size: 0.95rem; color: rgba(255,255,255,0.8); max-width: 280px; } .btn-congrats { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #fff; font-size: 1rem; font-weight: 700; padding: 12px 28px; border-radius: 100px; border: none; text-decoration: none; transition: background var(--transition), transform var(--transition); box-shadow: 0 4px 16px rgba(255,107,53,0.4); cursor: pointer; } .btn-congrats:hover { background: var(--accent-dark); transform: translateY(-2px); color: #fff; text-decoration: none; } /* Confetti canvas */ #confetti-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; border-radius: var(--radius); overflow: hidden; } /* ── Daily sidebar ────────────────────────────────────── */ .daily-sidebar { display: flex; flex-direction: column; gap: 20px; max-width: 280px; } .daily-info-card { background: var(--surface); border-radius: var(--radius); padding: 20px; border: 1px solid var(--border); } .daily-info-card h4 { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; } .difficulty-chips { display: flex; flex-wrap: wrap; gap: 6px; } .diff-chip { font-size: 0.72rem; font-weight: 700; padding: 4px 10px; border-radius: 100px; background: var(--surface-2); color: var(--text-muted); border: 1px solid var(--border); transition: background var(--transition), color var(--transition); } .diff-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); } .diff-chip:hover { background: var(--primary-light); color: #fff; border-color: var(--primary-light); } .tip-text { font-size: 0.88rem; color: var(--text-muted); line-height: 1.55; } .tip-text strong { color: var(--text); } @media (max-width: 860px) { .daily-inner { grid-template-columns: 1fr; } .daily-sidebar { max-width: 100%; flex-direction: row; flex-wrap: wrap; } .daily-info-card { flex: 1; min-width: 200px; } } @media (max-width: 600px) { :root { --cell-size: clamp(32px, 10.5vw, 44px); --cell-font: clamp(14px, 4.5vw, 22px); } #number-pad { gap: 4px; } } /* ── Stats section ────────────────────────────────────── */ .stats { background: var(--primary); color: #fff; } .stats .section-header h2 { color: #fff; } .stats .section-header p { color: rgba(255,255,255,0.85); } .stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; } .stat-card { background: rgba(255,255,255,0.1); border-radius: var(--radius); padding: 28px 16px; border: 1px solid rgba(255,255,255,0.15); transition: background var(--transition), transform var(--transition); } .stat-card:hover { background: rgba(255,255,255,0.18); transform: translateY(-4px); } .stat-num { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; color: #fff; margin-bottom: 6px; } .stat-label { font-size: 0.85rem; color: #fff; font-weight: 600; } @media (max-width: 700px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } } /* ── Testimonials ─────────────────────────────────────── */ .testimonials { background: var(--surface); } .quotes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; } .quote-card { background: var(--bg); border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--border); transition: transform var(--transition), box-shadow var(--transition); } .quote-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); } .quote-card .quote-stars { color: #f5a623; font-size: 1rem; margin-bottom: 14px; letter-spacing: 2px; } .quote-card blockquote { font-size: 0.95rem; color: var(--text); line-height: 1.6; margin-bottom: 14px; font-style: italic; } .quote-card .quote-author { font-size: 0.82rem; color: var(--text-muted); font-weight: 700; } /* ── CTA Banner ───────────────────────────────────────── */ .cta-banner { background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%); padding: 96px 0; text-align: center; color: #fff; } .cta-banner h2 { color: #fff; margin-bottom: 16px; } .cta-banner p { font-size: 1.1rem; color: rgba(255,255,255,0.8); margin-bottom: 36px; max-width: 480px; margin-left: auto; margin-right: auto; } .btn-cta-banner { display: inline-flex; align-items: center; gap: 8px; background: #c44e1a; color: #fff; font-size: 1.15rem; font-weight: 700; padding: 16px 40px; border-radius: 100px; border: none; transition: background var(--transition), transform var(--transition), box-shadow var(--transition); text-decoration: none; box-shadow: 0 6px 24px rgba(196,78,26,0.45); cursor: pointer; } .btn-cta-banner:hover { background: #a34015; transform: translateY(-3px); box-shadow: 0 12px 40px rgba(163,64,21,0.55); color: #fff; text-decoration: none; } /* ── Footer ───────────────────────────────────────────── */ footer { background: var(--surface); border-top: 1px solid var(--border); padding: 40px 0; } .footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; } .footer-logo { font-size: 1.3rem; font-weight: 900; letter-spacing: -0.04em; color: var(--text); text-decoration: none; } .footer-logo .logo-accent { color: var(--accent); } .footer-center { text-align: center; font-size: 0.85rem; color: var(--text-muted); } .footer-links { display: flex; gap: 12px; align-items: center; } .footer-links a { font-size: 0.85rem; color: var(--text-muted); font-weight: 600; transition: color var(--transition); } .footer-links a:hover { color: var(--primary); } .footer-lang-btn { font-size: 0.82rem; font-weight: 700; background: var(--surface-2); border: 1.5px solid var(--border); padding: 5px 14px; border-radius: 100px; color: var(--text); transition: background var(--transition), border-color var(--transition); } .footer-lang-btn:hover { background: var(--primary); border-color: var(--primary); color: #fff; } /* ── Fade-in animations ───────────────────────────────── */ .fade-in { transform: translateY(20px); transition: transform 0.5s ease; } .fade-in.visible { transform: translateY(0); } /* stagger cards */ .feature-card:nth-child(2) { transition-delay: 0.05s; } .feature-card:nth-child(3) { transition-delay: 0.10s; } .feature-card:nth-child(4) { transition-delay: 0.15s; } .feature-card:nth-child(5) { transition-delay: 0.20s; } .feature-card:nth-child(6) { transition-delay: 0.25s; } .feature-card:nth-child(7) { transition-delay: 0.30s; } .feature-card:nth-child(8) { transition-delay: 0.35s; } .feature-card:nth-child(9) { transition-delay: 0.40s; } .stat-card:nth-child(2) { transition-delay: 0.08s; } .stat-card:nth-child(3) { transition-delay: 0.16s; } .stat-card:nth-child(4) { transition-delay: 0.24s; } .stat-card:nth-child(5) { transition-delay: 0.32s; } .stat-card:nth-child(6) { transition-delay: 0.40s; } .quote-card:nth-child(2) { transition-delay: 0.10s; } .quote-card:nth-child(3) { transition-delay: 0.20s; } /* ── Hero grid theme demo ─────────────────────────────── */ .hero-grid-demo { transition: background 0.5s ease; } .hero-grid-demo[data-theme="classic"] { background: #ffffff; --cell-bg: #ffffff; --cell-given-bg: #eef1fc; --cell-given-color: #1a1f3a; --grid-box-line: #2255cc; --grid-line: #c8ceea; --cell-selected-bg: #c5d4f8; --primary: #2255cc; } .hero-grid-demo[data-theme="modern"] { background: #161928; --cell-bg: #161928; --cell-given-bg: #1e2448; --cell-given-color: #c8d4f8; --grid-box-line: #4d7aee; --grid-line: #2a3050; --cell-selected-bg: #2a3a6a; --primary: #4d7aee; } .hero-grid-demo[data-theme="amoled"] { background: #000000; --cell-bg: #000000; --cell-given-bg: #0a0a18; --cell-given-color: #b8ccff; --grid-box-line: #4466ff; --grid-line: #111122; --cell-selected-bg: #1a2a5a; --primary: #4466ff; } .hero-grid-demo[data-theme="warm"] { background: #f5f0e8; --cell-bg: #fdfaf4; --cell-given-bg: #f0e6d0; --cell-given-color: #3d2a05; --grid-box-line: #9b7828; --grid-line: #d4c090; --cell-selected-bg: #e8ddb0; --primary: #9b7828; } .hero-grid-demo[data-theme="forest"] { background: #0a1a0a; --cell-bg: #0d1f0d; --cell-given-bg: #162816; --cell-given-color: #a8d4a8; --grid-box-line: #4a9c4a; --grid-line: #1e3a1e; --cell-selected-bg: #203820; --primary: #4a9c4a; } .hero-grid-demo[data-theme="vegas"] { background: #0a0010; --cell-bg: #0e0018; --cell-given-bg: #1c0030; --cell-given-color: #ffd700; --grid-box-line: #ff0066; --grid-line: #380060; --cell-selected-bg: #2a0055; --primary: #ff0066; } .hero-grid-demo[data-theme="pixel"] { background: #0f0f23; --cell-bg: #16213e; --cell-given-bg: #0d2040; --cell-given-color: #f0e040; --grid-box-line: #8080ff; --grid-line: #3a3a88; --cell-selected-bg: #1a3a6a; --primary: #40e0ff; } .hero-grid-demo[data-theme="pixel"] .mini-cell { border-radius: 0; image-rendering: pixelated; } .hero-grid-demo[data-theme="matrix"] { background: #000000; --cell-bg: #000500; --cell-given-bg: #001200; --cell-given-color: #00ff41; --grid-box-line: #00aa00; --grid-line: #001e00; --cell-selected-bg: #002200; --primary: #00ff41; } .hero-grid-demo[data-theme="matrix"] .mini-cell { border-radius: 0; color: #00cc33; font-family: 'Courier New', monospace; } .hero-grid-demo[data-theme="matrix"] .mini-header, .hero-grid-demo[data-theme="matrix"] .mini-num, .hero-grid-demo[data-theme="matrix"] .mini-ctrl { border-radius: 0; font-family: 'Courier New', monospace; } .hero-grid-demo[data-theme="ugly"] { background: #00ff44; --cell-bg: #ffff00; --cell-given-bg: #ff6600; --cell-given-color: #000000; --grid-box-line: #ff00cc; --grid-line: #ff0099; --cell-selected-bg: #00ffff; --primary: #cc0000; } .hero-grid-demo[data-theme="ugly"] .mini-cell, .hero-grid-demo[data-theme="ugly"] .mini-header, .hero-grid-demo[data-theme="ugly"] .mini-num, .hero-grid-demo[data-theme="ugly"] .mini-ctrl { font-family: 'Comic Sans MS', 'Comic Sans', cursive; } /* ── Modes section ───────────────────────────────────────────────── */ .modes-section { padding: 5rem 0; background: var(--bg-alt, rgba(128,128,128,0.03)); } .modes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1rem; margin-top: 2.5rem; } .mode-tile { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; padding: 1.25rem 0.75rem; background: var(--card-bg, rgba(255,255,255,0.05)); border: 1px solid var(--border, rgba(128,128,128,0.15)); border-radius: 14px; text-decoration: none; color: inherit; transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s; text-align: center; } .mode-tile:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.12); border-color: var(--accent, #2255cc); } .mode-tile__icon { font-size: 2rem; line-height: 1; } .mode-tile__name { font-weight: 700; font-size: 0.9rem; } .mode-tile__desc { font-size: 0.72rem; opacity: 0.65; line-height: 1.3; } .mode-tile--killer { border-color: rgba(255,80,80,0.3); } .mode-tile--diagonal { border-color: rgba(100,160,255,0.3); } /* ── FAQ ──────────────────────────────────────────────── */ .faq-section { padding: 4rem 0; } .faq-section .section-title { text-align: center; margin-bottom: 2rem; } .faq-list { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.5rem; } .faq-item { border: 1px solid var(--border, rgba(128,128,128,0.2)); border-radius: 10px; overflow: hidden; background: var(--card-bg, rgba(128,128,128,0.04)); } .faq-q { padding: 1rem 1.25rem; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; font-size: 0.95rem; } .faq-q::-webkit-details-marker { display: none; } .faq-q::after { content: '+'; font-size: 1.2rem; font-weight: 300; color: var(--accent, #2255cc); transition: transform 0.2s; } details[open] .faq-q::after { transform: rotate(45deg); } .faq-a { padding: 0 1.25rem 1rem; font-size: 0.88rem; line-height: 1.6; color: var(--text-secondary, #666); margin: 0; } /* ── Scrollbar (Chrome/Edge) ──────────────────────────── */ ::-webkit-scrollbar { width: 8px; } ::-webkit-scrollbar-track { background: var(--bg); } ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; } ::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }