/* ========================================================================== WebCode Academy — Design System -------------------------------------------------------------------------- ไฟล์นี้เป็น Style Sheet กลางของทั้งเว็บไซต์ ใช้ร่วมกันทุกหน้า ลำดับการอ่าน: 1. Theme Variables — ตัวแปรสี/เงา/รัศมี ใช้ทั่วทั้งเว็บ 2. Base & Reset — ค่าเริ่มต้นของ Element 3. Layout Helpers — .container, .section 4. Components — Header, Button, Card, Callout, Code Block ฯลฯ 5. Lesson Layout — โครงหน้าเรียน (Sidebar + Content) 6. Tools — Playground, Exercise, Reference 7. Utilities — คลาสช่วยเหลือทั่วไป 8. Responsive — Media Query ========================================================================== */ /* ========================================================================== 1. THEME VARIABLES ========================================================================== */ :root { /* Brand */ --primary: #2563eb; --primary-dark: #1d4ed8; --primary-light: #dbeafe; --accent: #7c3aed; /* Status */ --success: #16a34a; --success-light: #dcfce7; --warning: #f59e0b; --warning-light: #fef3c7; --danger: #dc2626; --danger-light: #fee2e2; /* Surface */ --bg: #ffffff; --bg-secondary: #f8fafc; --bg-tertiary: #f1f5f9; --card: #ffffff; /* Text */ --text: #1e293b; --text-strong: #0f172a; --text-secondary: #475569; --text-muted: #64748b; /* Line */ --border: #e2e8f0; --border-strong: #cbd5e1; /* Code surface (ใช้ทั้งใน code block และ editor) */ --code-bg: #0b1120; --code-bg-alt: #111827; --code-border: #263449; /* Metrics */ --header-height: 68px; --sidebar-width: 292px; --radius-sm: 8px; --radius-md: 14px; --radius-lg: 20px; --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06); --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08); --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12); --transition: 0.22s ease; } /* Dark theme — เปิดใช้ด้วยการเติม class "dark" ที่ */ body.dark { --primary-light: #1e3a8a; --success-light: #14532d; --warning-light: #78350f; --danger-light: #7f1d1d; --bg: #0b1120; --bg-secondary: #0f172a; --bg-tertiary: #1e293b; --card: #131c31; --text: #e2e8f0; --text-strong: #f8fafc; --text-secondary: #cbd5e1; --text-muted: #94a3b8; --border: #263449; --border-strong: #334155; --code-bg: #060b18; --code-bg-alt: #0f172a; --code-border: #263449; --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3); --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35); --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45); } /* ========================================================================== 2. BASE & RESET ========================================================================== */ *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; } html { scroll-behavior: smooth; } body { font-family: Inter, "Noto Sans Thai", "Segoe UI", Arial, sans-serif; font-size: 16px; line-height: 1.75; background: var(--bg); color: var(--text); transition: background var(--transition), color var(--transition); /* กันหน้าเว็บกระตุกตอนเปิด modal */ overflow-x: hidden; } body.no-scroll { overflow: hidden; } a { color: inherit; text-decoration: none; } button, input, select, textarea { font: inherit; color: inherit; } button { cursor: pointer; border: 0; background: none; } img, svg, iframe { max-width: 100%; display: block; } ul, ol { list-style-position: inside; } code, pre, kbd { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; } /* Focus ring — จำเป็นต่อ Accessibility (ใช้งานด้วยคีย์บอร์ดได้) */ :focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; } /* ข้ามไปยังเนื้อหาหลักด้วยคีย์บอร์ด (Tab ครั้งแรก) */ .skip-link { position: absolute; left: -9999px; top: 0; z-index: 3000; padding: 12px 18px; background: var(--primary); color: #fff; font-weight: 700; border-radius: 0 0 var(--radius-sm) 0; } .skip-link:focus { left: 0; } /* ========================================================================== 3. LAYOUT HELPERS ========================================================================== */ .container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; } .container-wide { width: min(1400px, calc(100% - 40px)); margin-inline: auto; } section.block { padding: 90px 0; } .section-header { max-width: 720px; margin: 0 auto 45px; text-align: center; } .section-label { display: inline-block; margin-bottom: 10px; color: var(--primary); font-size: 13px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; } .section-badge { display: inline-block; padding: 6px 14px; margin-bottom: 12px; color: var(--primary); background: var(--primary-light); border-radius: 100px; font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; } .section-title { margin-bottom: 14px; font-size: clamp(30px, 4vw, 42px); line-height: 1.2; } .section-description { color: var(--text-secondary); font-size: 16px; } .page-head { padding: 60px 0 40px; background: radial-gradient(circle at 12% 20%, rgba(37, 99, 235, 0.10), transparent 32%), radial-gradient(circle at 88% 8%, rgba(124, 58, 237, 0.10), transparent 32%), var(--bg-secondary); border-bottom: 1px solid var(--border); } .page-head h1 { margin-bottom: 12px; font-size: clamp(30px, 4.2vw, 46px); line-height: 1.15; letter-spacing: -1px; } .page-head p { max-width: 720px; color: var(--text-secondary); } /* ========================================================================== 4. COMPONENTS ========================================================================== */ /* ---------- Header ---------- */ header.site-header { position: sticky; top: 0; z-index: 1000; height: var(--header-height); background: rgba(255, 255, 255, 0.92); border-bottom: 1px solid var(--border); backdrop-filter: blur(15px); } body.dark header.site-header { background: rgba(11, 17, 32, 0.92); } .navbar { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px; } .logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; white-space: nowrap; } .logo-icon { width: 40px; height: 40px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #2563eb, #7c3aed); border-radius: 11px; font-size: 13px; font-weight: 900; box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25); } .logo span { color: var(--primary); } .nav-links { display: flex; align-items: center; gap: 4px; } .nav-links a { padding: 9px 13px; color: var(--text-secondary); font-size: 14px; font-weight: 600; border-radius: var(--radius-sm); transition: var(--transition); } .nav-links a:hover, .nav-links a.active { color: var(--primary); background: var(--primary-light); } body.dark .nav-links a:hover, body.dark .nav-links a.active { background: rgba(37, 99, 235, 0.18); } .header-actions { display: flex; align-items: center; gap: 8px; } .icon-button { width: 40px; height: 40px; display: grid; place-items: center; color: var(--text-secondary); background: transparent; border: 1px solid var(--border); border-radius: 9px; font-size: 15px; transition: var(--transition); } .icon-button:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-light); } body.dark .icon-button:hover { background: rgba(37, 99, 235, 0.18); } .mobile-menu { display: none; } /* Mobile slide-down navigation */ .mobile-nav { position: fixed; inset: var(--header-height) 0 0 0; z-index: 999; display: none; padding: 20px; background: var(--card); border-top: 1px solid var(--border); overflow-y: auto; } .mobile-nav.active { display: block; } .mobile-nav a { display: block; padding: 13px 4px; color: var(--text-secondary); font-weight: 600; border-bottom: 1px solid var(--border); } .mobile-nav a:hover { color: var(--primary); } /* ---------- Buttons ---------- */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 10px; font-size: 15px; font-weight: 700; transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition); } .btn:hover { transform: translateY(-2px); } .btn:active { transform: translateY(0); } .btn-primary { color: #fff; background: var(--primary); box-shadow: 0 10px 25px rgba(37, 99, 235, 0.25); } .btn-primary:hover { background: var(--primary-dark); } .btn-secondary { color: var(--text); background: var(--card); border-color: var(--border); } .btn-secondary:hover { color: var(--primary); border-color: var(--primary); } .btn-success { color: #fff; background: var(--success); } .btn-danger { color: #fff; background: var(--danger); } .btn-ghost { color: var(--text-secondary); border-color: var(--border); background: transparent; } .btn-sm { min-height: 36px; padding: 0 13px; font-size: 13px; border-radius: var(--radius-sm); } /* ปุ่มลูกศรสำหรับ Previous / Next */ .btn[disabled] { opacity: 0.45; cursor: not-allowed; transform: none; } /* ---------- Hero (Home) ---------- */ .hero { position: relative; overflow: hidden; padding: 100px 0 110px; background: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.10), transparent 30%), radial-gradient(circle at 90% 10%, rgba(124, 58, 237, 0.10), transparent 30%), var(--bg); } .hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr); gap: 70px; align-items: center; } .hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 13px; margin-bottom: 20px; color: var(--primary); background: var(--primary-light); border-radius: 100px; font-size: 13px; font-weight: 700; } .hero h1 { max-width: 700px; margin-bottom: 22px; font-size: clamp(38px, 5vw, 64px); line-height: 1.1; letter-spacing: -2.5px; } .gradient-text { background: linear-gradient(90deg, #2563eb, #7c3aed); -webkit-background-clip: text; background-clip: text; color: transparent; } .hero-description { max-width: 640px; margin-bottom: 30px; color: var(--text-secondary); font-size: 18px; } .hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; } .hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 26px; color: var(--text-muted); font-size: 13px; font-weight: 600; } /* ---------- Code Window (ใช้ใน Hero และหน้าแรก) ---------- */ .code-window { position: relative; overflow: hidden; background: var(--code-bg); border: 1px solid var(--code-border); border-radius: 18px; box-shadow: var(--shadow-lg); } .window-header { height: 48px; display: flex; align-items: center; padding: 0 16px; background: var(--code-bg-alt); border-bottom: 1px solid var(--code-border); } .window-dots { display: flex; gap: 7px; } .dot { width: 11px; height: 11px; border-radius: 50%; } .dot.red { background: #ef4444; } .dot.yellow { background: #f59e0b; } .dot.green { background: #22c55e; } .window-title { margin-inline: auto; color: #94a3b8; font-size: 12px; } /* หน้าต่าง Code ใน Hero ของหน้าแรก */ .hero-code .code-block { margin: 0; border-radius: 18px; box-shadow: var(--shadow-lg); } .hero-code .code-block pre { max-height: 380px; } /* ---------- Code Block (ใช้ทั่วเว็บ) ---------- */ .code-block { position: relative; overflow: hidden; margin: 18px 0; background: var(--code-bg); border: 1px solid var(--code-border); border-radius: var(--radius-md); } .code-block-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 14px; background: var(--code-bg-alt); border-bottom: 1px solid var(--code-border); } .code-block-title { display: flex; align-items: center; gap: 8px; color: #94a3b8; font-size: 12px; font-weight: 700; letter-spacing: 0.6px; text-transform: uppercase; } .code-block-actions { display: flex; gap: 6px; } .code-btn { padding: 5px 11px; color: #cbd5e1; background: rgba(148, 163, 184, 0.12); border: 1px solid rgba(148, 163, 184, 0.2); border-radius: 6px; font-size: 12px; font-weight: 700; transition: var(--transition); } .code-btn:hover { color: #fff; background: var(--primary); border-color: var(--primary); } .code-btn.done { color: #fff; background: var(--success); border-color: var(--success); } .code-block pre { max-height: 520px; overflow: auto; padding: 18px 0; } .code-block code { display: block; color: #e2e8f0; font-size: 13.5px; line-height: 1.85; } .code-line { display: block; padding-inline: 18px 22px; white-space: pre; } .code-line:hover { background: rgba(148, 163, 184, 0.07); } .line-number { display: inline-block; width: 34px; color: #475569; user-select: none; } /* Syntax highlight tokens */ .tok-tag { color: #60a5fa; } .tok-attr { color: #fbbf24; } .tok-string { color: #86efac; } .tok-text { color: #e2e8f0; } .tok-comment { color: #64748b; font-style: italic; } .tok-key { color: #c084fc; } .tok-num { color: #fca5a5; } .tok-fn { color: #7dd3fc; } .tok-prop { color: #7dd3fc; } .tok-sel { color: #f9a8d4; } .tok-punc { color: #94a3b8; } /* ---------- Stats ---------- */ .stats { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); } .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); } .stat { padding: 28px 20px; text-align: center; border-right: 1px solid var(--border); } .stat:last-child { border-right: 0; } .stat-number { color: var(--primary); font-size: 28px; font-weight: 800; } .stat-label { color: var(--text-muted); font-size: 14px; } /* ---------- Cards ---------- */ .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; } .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; } .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; } .card { padding: 28px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); } .card:hover { transform: translateY(-6px); border-color: rgba(37, 99, 235, 0.4); box-shadow: var(--shadow-md); } .card h3 { margin-bottom: 8px; font-size: 20px; } .card p { color: var(--text-secondary); font-size: 14.5px; } .course-card { display: flex; flex-direction: column; } .course-icon { width: 62px; height: 62px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 16px; font-size: 18px; font-weight: 900; } .html-icon { color: #f97316; background: #ffedd5; } .css-icon { color: #2563eb; background: #dbeafe; } .js-icon { color: #ca8a04; background: #fef9c3; } .php-icon { color: #4f46e5; background: #e0e7ff; } .sql-icon { color: #0891b2; background: #cffafe; } .py-icon { color: #15803d; background: #dcfce7; } .docker-icon { color: #0e7490; background: #cffafe; } .project-icon { color: #7c3aed; background: #ede9fe; font-size: 26px; } body.dark .html-icon { background: rgba(249, 115, 22, 0.14); } body.dark .css-icon { background: rgba(37, 99, 235, 0.16); } body.dark .js-icon { background: rgba(234, 179, 8, 0.14); } body.dark .php-icon { background: rgba(99, 102, 241, 0.16); } body.dark .sql-icon { background: rgba(8, 145, 178, 0.18); } body.dark .py-icon { background: rgba(22, 163, 74, 0.18); } body.dark .docker-icon { background: rgba(6, 182, 212, 0.18); } body.dark .project-icon { background: rgba(124, 58, 237, 0.18); } .course-level { display: inline-block; margin-bottom: 8px; color: var(--text-muted); font-size: 12px; font-weight: 700; letter-spacing: 0.6px; } .course-card p { flex: 1; margin-bottom: 18px; } .course-info { display: flex; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 13px; } .course-link { display: inline-flex; align-items: center; gap: 5px; margin-top: 18px; color: var(--primary); font-size: 14px; font-weight: 800; } .course-link:hover { gap: 10px; } /* ---------- Learning Path ---------- */ .learning-path { padding: 90px 0; background: var(--bg); } .path-container { display: grid; gap: 0; max-width: 900px; margin: 0 auto; } .path-card { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 22px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); } .path-card:hover { transform: translateX(4px); border-color: rgba(37, 99, 235, 0.4); } .path-card.featured-path { border-color: rgba(124, 58, 237, 0.45); box-shadow: 0 14px 34px rgba(124, 58, 237, 0.14); } .path-number { width: 56px; height: 56px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #2563eb, #7c3aed); border-radius: 14px; font-size: 18px; font-weight: 800; box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25); } .path-content { display: flex; gap: 16px; } .path-icon { width: 46px; height: 46px; display: grid; place-items: center; flex: none; border-radius: 12px; font-weight: 900; } .path-content h3 { margin-bottom: 6px; font-size: 19px; } .path-content p { color: var(--text-secondary); font-size: 14px; } .path-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; } .path-tags span { padding: 4px 10px; color: var(--text-secondary); background: var(--bg-tertiary); border-radius: 100px; font-size: 11px; font-weight: 700; } .path-arrow { padding: 6px 0; text-align: center; color: var(--border-strong); font-size: 22px; line-height: 1; } /* ไทม์ไลน์เดิม (path-item) — เก็บไว้ให้เนื้อหาเก่าใช้ได้ */ .path-item { position: relative; display: grid; grid-template-columns: 70px 1fr; gap: 20px; padding-bottom: 30px; } .path-item:not(:last-child)::before { content: ""; position: absolute; left: 34px; top: 70px; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--primary), var(--border)); } /* ---------- Feature / Project / Example cards ---------- */ .feature-icon { width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 16px; color: var(--primary); background: var(--primary-light); border-radius: 11px; font-size: 20px; } body.dark .feature-icon { background: rgba(37, 99, 235, 0.16); } .project-card { display: flex; flex-direction: column; overflow: hidden; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: var(--transition); } .project-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); } .project-preview { position: relative; height: 210px; overflow: hidden; background: var(--bg-tertiary); border-bottom: 1px solid var(--border); } .project-preview iframe { width: 400%; height: 400%; border: 0; transform: scale(0.25); transform-origin: top left; pointer-events: none; /* การ์ดตัวอย่างไม่รับคลิก ให้กดที่ปุ่ม "ดูตัวอย่าง" */ } .project-preview-icon { height: 190px; display: grid; place-items: center; background: linear-gradient(135deg, #eff6ff, #eef2ff); font-size: 50px; } body.dark .project-preview-icon { background: linear-gradient(135deg, #172554, #1e1b4b); } .project-content { display: flex; flex-direction: column; flex: 1; padding: 20px; } .project-content h3 { margin-bottom: 6px; font-size: 18px; } .project-content p { flex: 1; margin-bottom: 14px; color: var(--text-secondary); font-size: 14px; } .tags { display: flex; flex-wrap: wrap; gap: 6px; } .tag-pill { padding: 4px 9px; color: var(--text-secondary); background: var(--bg-tertiary); border-radius: 6px; font-size: 11px; font-weight: 700; } /* ปุ่มต่าง ๆ ในการ์ดโปรเจกต์ (ดูตัวอย่าง / HTML / CSS / JavaScript) */ .project-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); } .project-actions .btn { flex: 1 1 auto; } /* ---------- หน้าต่างดูโปรเจกต์ (Modal) ---------- */ .search-box.modal-wide { width: min(1000px, calc(100% - 30px)); } .project-modal-tabs { flex-wrap: wrap; padding: 12px 18px 0; } .project-modal-body { max-height: 72vh; overflow-y: auto; padding: 14px 18px 18px; } .project-modal-note { margin: 0 0 10px; font-size: 13.5px; } .project-modal-body .code-block pre { max-height: 340px; } /* ---------- CTA ---------- */ .cta { padding: 90px 0; color: #fff; background: linear-gradient(135deg, #1d4ed8, #4f46e5); } .cta-box { max-width: 820px; margin: auto; text-align: center; } .cta h2 { margin-bottom: 14px; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; } .cta p { margin-bottom: 26px; color: rgba(255, 255, 255, 0.82); } .cta .btn-white { color: #1d4ed8; background: #fff; } /* ---------- Footer ---------- */ footer.site-footer { padding: 65px 0 25px; color: #fff; background: #0f172a; } .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 45px; padding-bottom: 45px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); } .footer-brand p { max-width: 330px; margin-top: 14px; color: #94a3b8; font-size: 14px; } .footer-title { margin-bottom: 14px; font-size: 14px; font-weight: 800; } .footer-links { display: flex; flex-direction: column; gap: 8px; } .footer-links a { color: #94a3b8; font-size: 13px; transition: var(--transition); } .footer-links a:hover { color: #fff; } .footer-bottom { display: flex; justify-content: space-between; gap: 10px; padding-top: 20px; color: #64748b; font-size: 12px; } /* ---------- Search Modal ---------- */ .search-overlay { position: fixed; inset: 0; z-index: 2000; display: none; padding-top: 90px; background: rgba(15, 23, 42, 0.65); backdrop-filter: blur(5px); } .search-overlay.active { display: block; } .search-box { width: min(680px, calc(100% - 30px)); margin: auto; overflow: hidden; background: var(--card); border: 1px solid var(--border); border-radius: 15px; box-shadow: var(--shadow-lg); } .search-input-wrapper { display: flex; align-items: center; gap: 10px; padding: 15px 18px; border-bottom: 1px solid var(--border); } .search-input { width: 100%; background: transparent; border: 0; outline: 0; color: var(--text); font-size: 16px; } .search-hint { padding: 10px 18px; color: var(--text-muted); font-size: 12px; border-top: 1px solid var(--border); } .search-results { max-height: 55vh; overflow-y: auto; } .search-result { display: block; padding: 14px 18px; border-bottom: 1px solid var(--border); transition: var(--transition); } .search-result:hover, .search-result.active { background: var(--bg-secondary); } .search-result strong { display: block; margin-bottom: 3px; color: var(--text-strong); font-size: 15px; } .search-result span { color: var(--text-muted); font-size: 12px; } .search-result mark { color: inherit; background: var(--warning-light); border-radius: 3px; } .search-empty { padding: 26px 18px; text-align: center; color: var(--text-muted); font-size: 14px; } /* ========================================================================== 5. LESSON LAYOUT (หน้าเรียน) ========================================================================== */ .lesson-shell { display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr); gap: 44px; padding: 34px 0 80px; } /* ---------- Sidebar ---------- */ .lesson-sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; max-height: calc(100vh - var(--header-height) - 48px); overflow-y: auto; padding-right: 6px; } .sidebar-card { padding: 18px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); } .sidebar-title { margin-bottom: 6px; font-size: 15px; font-weight: 800; } .sidebar-progress { height: 6px; margin: 12px 0 6px; overflow: hidden; background: var(--bg-tertiary); border-radius: 100px; } .sidebar-progress i { display: block; width: 0; height: 100%; background: linear-gradient(90deg, #2563eb, #7c3aed); transition: width 0.4s ease; } .sidebar-progress-text { color: var(--text-muted); font-size: 12px; } .sidebar-group-title { margin: 20px 0 8px; padding-inline: 2px; color: var(--text-muted); font-size: 11px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; } .sidebar-menu { list-style: none; display: grid; gap: 2px; } .sidebar-menu a { display: flex; align-items: center; gap: 9px; padding: 8px 10px; color: var(--text-secondary); border-radius: var(--radius-sm); font-size: 14px; transition: var(--transition); } .sidebar-menu a:hover { color: var(--primary); background: var(--bg-secondary); } .sidebar-menu a.active { color: var(--primary); background: var(--primary-light); font-weight: 700; } body.dark .sidebar-menu a.active { background: rgba(37, 99, 235, 0.2); } .sidebar-menu a .num { width: 22px; flex: none; color: var(--text-muted); font-size: 11px; font-weight: 700; } .sidebar-menu a.active .num { color: var(--primary); } .sidebar-menu a .done { margin-left: auto; color: var(--success); font-size: 12px; } /* ปุ่มเปิดสารบัญบนมือถือ */ .sidebar-toggle { display: none; width: 100%; margin-bottom: 18px; } /* ---------- Breadcrumb ---------- */ .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 18px; color: var(--text-muted); font-size: 13px; } .breadcrumb a:hover { color: var(--primary); text-decoration: underline; } .breadcrumb .sep { color: var(--border-strong); } .breadcrumb .current { color: var(--text-secondary); font-weight: 600; } /* ---------- Lesson article ---------- */ .lesson-article { min-width: 0; max-width: 880px; } .lesson-header { padding-bottom: 22px; margin-bottom: 28px; border-bottom: 1px solid var(--border); } .lesson-kicker { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 12px; font-size: 12px; font-weight: 800; } .badge { display: inline-block; padding: 4px 10px; border-radius: 100px; font-size: 11.5px; font-weight: 800; letter-spacing: 0.4px; } .badge-primary { color: var(--primary); background: var(--primary-light); } .badge-success { color: var(--success); background: var(--success-light); } .badge-warning { color: #b45309; background: var(--warning-light); } .badge-danger { color: var(--danger); background: var(--danger-light); } .badge-muted { color: var(--text-secondary); background: var(--bg-tertiary); } .lesson-header h1 { margin-bottom: 10px; font-size: clamp(28px, 3.6vw, 40px); line-height: 1.2; letter-spacing: -0.8px; } .lesson-header p { color: var(--text-secondary); font-size: 17px; } /* เนื้อหาแบบบทความ */ .prose h2 { margin: 42px 0 14px; padding-bottom: 8px; font-size: 26px; line-height: 1.3; border-bottom: 1px solid var(--border); } .prose h3 { margin: 28px 0 10px; font-size: 20px; } .prose p { margin-bottom: 14px; color: var(--text-secondary); } .prose strong { color: var(--text-strong); } .prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; list-style-position: outside; color: var(--text-secondary); } .prose li { margin-bottom: 7px; } .prose li::marker { color: var(--primary); font-weight: 700; } .prose code:not(pre code) { padding: 2px 6px; color: #db2777; background: var(--bg-tertiary); border-radius: 5px; font-size: 13.5px; } body.dark .prose code:not(pre code) { color: #f9a8d4; } .prose a.inline-link { color: var(--primary); font-weight: 600; text-decoration: underline; } /* Objectives box */ .objectives { padding: 22px 24px; margin: 24px 0; background: var(--bg-secondary); border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: var(--radius-md); } .objectives h3 { margin: 0 0 12px; font-size: 16px; } .objectives ul { margin: 0; padding-left: 22px; list-style-position: outside; } .objectives li { color: var(--text-secondary); font-size: 15px; } .objectives li::marker { color: var(--success); } /* ---------- Callout ---------- */ .callout { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 16px 18px; margin: 20px 0; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-secondary); } .callout-icon { font-size: 20px; line-height: 1.4; } .callout-title { margin-bottom: 4px; font-size: 15px; font-weight: 800; } .callout p { margin: 0; font-size: 14.5px; color: var(--text-secondary); } .callout.tip { border-left: 4px solid var(--success); } .callout.note { border-left: 4px solid var(--primary); } .callout.warning { border-left: 4px solid var(--warning); } .callout.danger { border-left: 4px solid var(--danger); } .callout.tip .callout-title { color: var(--success); } .callout.note .callout-title { color: var(--primary); } .callout.warning .callout-title { color: #b45309; } .callout.danger .callout-title { color: var(--danger); } /* ---------- Code + Live Preview ---------- */ .example { margin: 22px 0; border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; } .example-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; background: var(--card); border-bottom: 1px solid var(--border); } .example-title { font-size: 14px; font-weight: 800; } .example-lang { color: var(--text-muted); font-size: 11.5px; font-weight: 700; letter-spacing: 0.6px; text-transform: uppercase; } .example .code-block { margin: 0; border: 0; border-radius: 0; } .example-split { display: grid; grid-template-columns: 1fr 1fr; gap: 0; } .example-split > * + * { border-left: 1px solid var(--code-border); } .preview-pane { display: flex; flex-direction: column; min-width: 0; background: var(--bg-secondary); } .preview-pane-header { display: flex; align-items: center; justify-content: space-between; padding: 9px 14px; background: var(--code-bg-alt); border-bottom: 1px solid var(--code-border); color: #94a3b8; font-size: 12px; font-weight: 700; letter-spacing: 0.6px; text-transform: uppercase; } .preview-frame { flex: 1; min-height: 190px; width: 100%; border: 0; background: #fff; } .preview-note { padding: 8px 14px; background: var(--bg-tertiary); border-top: 1px solid var(--border); color: var(--text-muted); font-size: 12px; } /* ---------- Mistake / Best practice ---------- */ .compare { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0; } .compare-col { padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--card); } .compare-col.bad { border-color: rgba(220, 38, 38, 0.4); background: var(--danger-light); } .compare-col.good { border-color: rgba(22, 163, 74, 0.4); background: var(--success-light); } .compare-col h4 { margin-bottom: 8px; font-size: 14px; } .compare-col.bad h4 { color: var(--danger); } .compare-col.good h4 { color: var(--success); } .compare-col code { display: block; padding: 10px 12px; background: var(--code-bg); color: #e2e8f0; border-radius: var(--radius-sm); font-size: 13px; line-height: 1.7; overflow-x: auto; } .compare-reason { margin-top: 10px; color: var(--text-secondary); font-size: 13.5px; } .practice-list { counter-reset: bp; list-style: none; padding: 0; display: grid; gap: 10px; margin: 16px 0; } .practice-list li { position: relative; padding: 13px 16px 13px 48px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); color: var(--text-secondary); font-size: 14.5px; } .practice-list li::before { counter-increment: bp; content: counter(bp); position: absolute; left: 14px; top: 13px; width: 24px; height: 24px; display: grid; place-items: center; color: #fff; background: var(--primary); border-radius: 50%; font-size: 12px; font-weight: 800; } /* ---------- Table ---------- */ .table-wrap { margin: 18px 0; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-md); } table.data-table { width: 100%; border-collapse: collapse; font-size: 14px; } table.data-table th, table.data-table td { padding: 11px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); } table.data-table thead th { background: var(--bg-tertiary); color: var(--text-strong); font-weight: 800; white-space: nowrap; } table.data-table tbody tr:hover { background: var(--bg-secondary); } table.data-table tbody tr:last-child td { border-bottom: 0; } table.data-table td code { padding: 2px 6px; color: var(--primary); background: var(--bg-tertiary); border-radius: 5px; font-size: 13px; white-space: nowrap; } /* ---------- Quiz ---------- */ .quiz { margin: 22px 0; padding: 22px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); } .quiz-item + .quiz-item { margin-top: 26px; padding-top: 22px; border-top: 1px dashed var(--border); } .quiz-question { margin-bottom: 14px; font-size: 16px; font-weight: 700; } .quiz-options { display: grid; gap: 9px; } .quiz-option { display: flex; align-items: center; gap: 11px; width: 100%; padding: 12px 15px; text-align: left; background: var(--bg-secondary); border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 14.5px; transition: var(--transition); } .quiz-option:hover { border-color: var(--primary); } .quiz-option .key { width: 24px; height: 24px; display: grid; place-items: center; flex: none; background: var(--bg-tertiary); border-radius: 50%; font-size: 12px; font-weight: 800; } .quiz-option.correct { color: var(--success); background: var(--success-light); border-color: var(--success); } .quiz-option.wrong { color: var(--danger); background: var(--danger-light); border-color: var(--danger); } .quiz-feedback { display: none; margin-top: 12px; padding: 12px 15px; background: var(--bg-secondary); border-left: 3px solid var(--primary); border-radius: var(--radius-sm); font-size: 14px; color: var(--text-secondary); } .quiz-feedback.show { display: block; } .quiz-score { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); font-weight: 700; } /* ---------- Exercise ---------- */ .exercise { margin: 22px 0; padding: 24px; border: 1.5px solid rgba(37, 99, 235, 0.35); border-radius: var(--radius-lg); background: linear-gradient(180deg, rgba(219, 234, 254, 0.55), transparent 120px), var(--card); } body.dark .exercise { background: linear-gradient(180deg, rgba(37, 99, 235, 0.12), transparent 120px), var(--card); } .exercise-title { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 17px; font-weight: 800; } .exercise-prompt { margin-bottom: 14px; color: var(--text-secondary); font-size: 15px; } .exercise .editor-area { margin-bottom: 12px; } .exercise-actions { display: flex; flex-wrap: wrap; gap: 8px; } .exercise-hint { display: none; margin-top: 12px; padding: 12px 15px; background: var(--warning-light); border-radius: var(--radius-sm); color: #92400e; font-size: 14px; } .exercise-hint.show { display: block; } body.dark .exercise-hint { color: #fcd34d; } .exercise-result { display: none; margin-top: 12px; padding: 12px 15px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; } .exercise-result.show { display: block; } .exercise-result.ok { color: var(--success); background: var(--success-light); } .exercise-result.no { color: var(--danger); background: var(--danger-light); } .exercise-result pre { margin-top: 8px; padding: 10px 12px; background: var(--code-bg); color: #e2e8f0; border-radius: var(--radius-sm); font-size: 12.5px; overflow-x: auto; } /* ---------- Lesson pager / summary ---------- */ .summary-box { padding: 22px 24px; margin: 30px 0 0; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius-md); } .summary-box h3 { margin: 0 0 12px; font-size: 17px; } .summary-box ul { margin: 0; padding-left: 22px; list-style-position: outside; } .summary-box li { color: var(--text-secondary); font-size: 14.5px; } .pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--border); } .pager a { display: flex; flex-direction: column; gap: 4px; padding: 16px 18px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); transition: var(--transition); } .pager a:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); } .pager a.next { text-align: right; align-items: flex-end; } .pager .pager-label { color: var(--text-muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px; } .pager .pager-title { color: var(--primary); font-size: 15px; font-weight: 700; } .pager .pager-empty { visibility: hidden; } /* ========================================================================== 6. TOOLS — Playground / Exercises / Examples / Reference ========================================================================== */ /* ---------- Playground ---------- */ .playground { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 26px 0 70px; } .editor-panel, .output-panel { display: flex; flex-direction: column; min-width: 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; } .panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 16px; background: var(--bg-secondary); border-bottom: 1px solid var(--border); } .panel-head h2, .panel-head h3 { font-size: 15px; } .editor-tabs { display: flex; flex-wrap: wrap; gap: 6px; } .editor-tab { padding: 6px 14px; color: var(--text-muted); background: transparent; border: 1px solid var(--border); border-radius: 100px; font-size: 12.5px; font-weight: 700; transition: var(--transition); } .editor-tab.active { color: #fff; background: var(--primary); border-color: var(--primary); } .editor-pane { display: none; flex: 1; } .editor-pane.active { display: block; } .editor-area { width: 100%; min-height: 220px; padding: 16px; color: #e2e8f0; background: var(--code-bg); border: 1px solid var(--code-border); border-radius: var(--radius-md); font-family: "SFMono-Regular", Consolas, monospace; font-size: 13.5px; line-height: 1.75; resize: vertical; tab-size: 2; } .editor-area:focus { outline: 2px solid var(--primary); outline-offset: 1px; } .playground .editor-pane .editor-area { border: 0; border-radius: 0; min-height: 420px; height: 100%; } .output-panel iframe { flex: 1; min-height: 420px; width: 100%; border: 0; background: #fff; } .playground-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 14px 0 0; } .console-output { max-height: 200px; overflow: auto; padding: 12px 16px; background: var(--code-bg); border-top: 1px solid var(--code-border); color: #e2e8f0; font-family: "SFMono-Regular", Consolas, monospace; font-size: 12.5px; } .console-line { padding: 2px 0; border-bottom: 1px dashed rgba(148, 163, 184, 0.15); } .console-line.err { color: #fca5a5; } /* ---------- Examples grid ---------- */ .filter-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 26px; } .filter-bar .filter-btn { padding: 8px 16px; color: var(--text-secondary); background: var(--card); border: 1px solid var(--border); border-radius: 100px; font-size: 13.5px; font-weight: 700; transition: var(--transition); } .filter-bar .filter-btn:hover { border-color: var(--primary); color: var(--primary); } .filter-bar .filter-btn.active { color: #fff; background: var(--primary); border-color: var(--primary); } .filter-search { flex: 1; min-width: 200px; padding: 9px 15px; background: var(--card); border: 1px solid var(--border); border-radius: 100px; font-size: 14px; } .filter-search:focus { outline: 2px solid var(--primary); outline-offset: 1px; } .example-card { display: flex; flex-direction: column; overflow: hidden; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); } .example-card h3 { padding: 15px 18px 0; font-size: 17px; } .example-card > p { padding: 6px 18px 12px; color: var(--text-secondary); font-size: 13.5px; } .example-card .preview-host { display: flex; } .example-card .preview-frame { min-height: 0; } .example-card iframe { width: 100%; height: 180px; border-block: 1px solid var(--border); background: #fff; } .example-card .code-block { margin: 0; border: 0; border-radius: 0; border-top: 1px solid var(--code-border); } .example-card .code-block pre { max-height: 240px; } .empty-state { padding: 60px 20px; text-align: center; color: var(--text-muted); } /* ---------- Reference ---------- */ .ref-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 34px; padding: 34px 0 80px; } .ref-nav { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; display: grid; gap: 4px; padding: 14px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); } .ref-nav button { padding: 9px 12px; text-align: left; color: var(--text-secondary); border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; transition: var(--transition); } .ref-nav button:hover { background: var(--bg-secondary); color: var(--primary); } .ref-nav button.active { color: var(--primary); background: var(--primary-light); font-weight: 800; } body.dark .ref-nav button.active { background: rgba(37, 99, 235, 0.2); } .ref-panel { display: none; } .ref-panel.active { display: block; } .ref-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; } .ref-head h2 { font-size: 26px; } /* ========================================================================== 7. UTILITIES ========================================================================== */ .text-center { text-align: center; } .mt-0 { margin-top: 0; } .mt-2 { margin-top: 20px; } .mt-3 { margin-top: 30px; } .mb-2 { margin-bottom: 20px; } .mb-3 { margin-bottom: 30px; } .hidden { display: none !important; } .muted { color: var(--text-muted); } .toast { position: fixed; left: 50%; bottom: 30px; z-index: 3000; padding: 12px 22px; color: #fff; background: var(--text-strong); border-radius: 100px; box-shadow: var(--shadow-lg); font-size: 14px; font-weight: 700; transform: translate(-50%, 80px); opacity: 0; transition: transform 0.3s ease, opacity 0.3s ease; pointer-events: none; } .toast.show { transform: translate(-50%, 0); opacity: 1; } @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } } .animate-up { animation: fadeUp 0.7s ease both; } /* Back to top */ .to-top { position: fixed; right: 24px; bottom: 24px; z-index: 900; width: 46px; height: 46px; display: none; place-items: center; color: #fff; background: var(--primary); border-radius: 50%; box-shadow: var(--shadow-md); font-size: 18px; } .to-top.show { display: grid; } /* ========================================================================== 8. RESPONSIVE ========================================================================== */ @media (max-width: 1100px) { .nav-links { display: none; } .mobile-menu { display: grid; } .lesson-shell { grid-template-columns: 1fr; gap: 0; } .lesson-sidebar { position: static; max-height: none; margin-bottom: 22px; padding-right: 0; } .sidebar-toggle { display: inline-flex; } .sidebar-card.collapsible { display: none; } .sidebar-card.collapsible.open { display: block; } .lesson-article { max-width: 100%; } .ref-layout { grid-template-columns: 1fr; gap: 20px; } .ref-nav { position: static; display: flex; flex-wrap: wrap; } .playground { grid-template-columns: 1fr; } } @media (max-width: 1000px) { .hero { padding: 70px 0 80px; } .hero-grid { grid-template-columns: 1fr; gap: 46px; text-align: center; } .hero-description { margin-inline: auto; } .hero-buttons, .hero-meta { justify-content: center; } .code-window { max-width: 680px; margin-inline: auto; } .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } .example-split { grid-template-columns: 1fr; } .example-split > * + * { border-left: 0; border-top: 1px solid var(--code-border); } .footer-grid { grid-template-columns: repeat(2, 1fr); } } @media (max-width: 780px) { .container, .container-wide { width: min(100% - 28px, 1180px); } section.block, .learning-path { padding: 62px 0; } .page-head { padding: 44px 0 30px; } .hero h1 { font-size: 40px; letter-spacing: -1.4px; } .hero-description { font-size: 16px; } .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .stats-grid { grid-template-columns: repeat(2, 1fr); } .stat { border-bottom: 1px solid var(--border); } .stat:nth-child(even) { border-right: 0; } .compare { grid-template-columns: 1fr; } .pager { grid-template-columns: 1fr; } .pager a.next { text-align: left; align-items: flex-start; } .path-card { grid-template-columns: 1fr; } .path-content { flex-direction: column; } .footer-grid { grid-template-columns: 1fr; gap: 28px; } .footer-bottom { flex-direction: column; } .header-actions .search-button { display: none; } .logo { font-size: 17px; } .logo-icon { width: 36px; height: 36px; } .lesson-header h1 { font-size: 27px; } .prose h2 { font-size: 22px; } .code-line { font-size: 12.5px; } .to-top { right: 14px; bottom: 14px; } } /* ========================================================================== 9. PRINT ========================================================================== */ @media print { header.site-header, footer.site-footer, .lesson-sidebar, .pager, .to-top, .search-overlay { display: none !important; } .lesson-shell { display: block; } body { background: #fff; color: #000; } }