/* TubeNotes / 영상노트 — styles.css 브랜드 팔레트: video-note-flutter 앱 테마 기준 Light (light_theme.dart): primary #FF0000 · bg #F9F9F9 · surface #FFFFFF · border #E5E5E5 · text #0F0F0F/#606060 Dark (dark_theme.dart): primary #FF4444 · bg #0F0F0F · surface #1F1F1F · border #3F3F3F · text #F1F1F1/#AAAAAA Splash gradient: light #FF1A1A→#E60000→#B00000 / dark #B31414→#8C0000→#5E0000 */ /* ===================== CSS Variables — Light (default) ===================== */ :root { color-scheme: light; /* Backgrounds & surfaces */ --bg: #f9f9f9; /* scaffoldBackgroundColor */ --bg-alt: #ffffff; /* alternating sections */ --surface: #ffffff; /* cards */ --surface-2: #f1f1f1; /* inset panels, inputs */ --border: #e5e5e5; /* Text */ --text-primary: #0f0f0f; --text-secondary: #606060; --text-muted: #6b6b6b; /* Brand accent (YouTube red) */ --accent: #ff0000; /* primary */ --accent-strong: #cc0000; /* secondary / hover */ --accent-deep: #cc0000; /* filled chips (contrast-safe) */ --accent-text: #cc0000; /* AA-safe red for text/links */ --on-accent: #ffffff; --accent-soft: rgba(255, 0, 0, 0.07); --accent-border: rgba(204, 0, 0, 0.28); --hero-glow: rgba(255, 26, 26, 0.07); --hover-veil: rgba(15, 15, 15, 0.03); /* Brand gradient (splash light) */ --brand-gradient: linear-gradient(135deg, #ff1a1a 0%, #e60000 45%, #b00000 100%); --hero-title-grad: linear-gradient(135deg, #0f0f0f 0%, #b00000 100%); /* Chrome */ --header-bg: rgba(255, 255, 255, 0.88); --img-ring: rgba(15, 15, 15, 0.06); --shadow: 0 4px 24px rgba(15, 15, 15, 0.08); --shadow-red: 0 4px 20px rgba(230, 0, 0, 0.16); /* Legacy aliases (inline styles in HTML) */ --red: var(--accent); --red-dark: var(--accent-strong); --red-light: var(--accent-text); --accent-glow: var(--accent-soft); /* Theme toggle icon visibility */ --tt-sun: none; --tt-moon: inline-block; --font-base: 'Segoe UI', 'Noto Sans KR', 'Noto Sans JP', 'Noto Sans SC', system-ui, sans-serif; --radius: 12px; /* app cardTheme radius */ --radius-lg: 20px; } /* ===================== CSS Variables — Dark (system preference, unless manually forced light) ===================== */ @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { color-scheme: dark; --bg: #0f0f0f; --bg-alt: #161616; --surface: #1f1f1f; --surface-2: #2f2f2f; --border: #3f3f3f; --text-primary: #f1f1f1; --text-secondary: #aaaaaa; --text-muted: #8f8f8f; --accent: #ff4444; --accent-strong: #ff6666; --accent-deep: #c41111; --accent-text: #ff6666; --on-accent: #ffffff; --accent-soft: rgba(255, 68, 68, 0.12); --accent-border: rgba(255, 68, 68, 0.35); --hero-glow: rgba(255, 68, 68, 0.08); --hover-veil: rgba(255, 255, 255, 0.04); --brand-gradient: linear-gradient(135deg, #e64545 0%, #c41111 50%, #8c0000 100%); --hero-title-grad: linear-gradient(135deg, #f1f1f1 0%, #ffb0b0 100%); --header-bg: rgba(15, 15, 15, 0.85); --img-ring: rgba(255, 255, 255, 0.1); --shadow: 0 4px 24px rgba(0, 0, 0, 0.45); --shadow-red: 0 4px 20px rgba(255, 68, 68, 0.15); --tt-sun: inline-block; --tt-moon: none; } } /* Manual toggle override (data-theme="dark" on ) */ :root[data-theme="dark"] { color-scheme: dark; --bg: #0f0f0f; --bg-alt: #161616; --surface: #1f1f1f; --surface-2: #2f2f2f; --border: #3f3f3f; --text-primary: #f1f1f1; --text-secondary: #aaaaaa; --text-muted: #8f8f8f; --accent: #ff4444; --accent-strong: #ff6666; --accent-deep: #c41111; --accent-text: #ff6666; --on-accent: #ffffff; --accent-soft: rgba(255, 68, 68, 0.12); --accent-border: rgba(255, 68, 68, 0.35); --hero-glow: rgba(255, 68, 68, 0.08); --hover-veil: rgba(255, 255, 255, 0.04); --brand-gradient: linear-gradient(135deg, #e64545 0%, #c41111 50%, #8c0000 100%); --hero-title-grad: linear-gradient(135deg, #f1f1f1 0%, #ffb0b0 100%); --header-bg: rgba(15, 15, 15, 0.85); --img-ring: rgba(255, 255, 255, 0.1); --shadow: 0 4px 24px rgba(0, 0, 0, 0.45); --shadow-red: 0 4px 20px rgba(255, 68, 68, 0.15); --tt-sun: inline-block; --tt-moon: none; } /* ===================== Reset & Base ===================== */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { scroll-behavior: smooth; font-size: 16px; } body { font-family: var(--font-base); background-color: var(--bg); color: var(--text-primary); line-height: 1.6; -webkit-font-smoothing: antialiased; transition: background-color 0.25s ease, color 0.25s ease; } a { color: var(--accent-text); text-decoration: none; transition: color 0.2s; } a:hover { color: var(--accent); text-decoration: underline; } ul { list-style: none; } img { max-width: 100%; display: block; } a:focus-visible, button:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; } /* ===================== Typography ===================== */ h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; color: var(--text-primary); letter-spacing: -0.01em; } h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -0.02em; } h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); } h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); } h4 { font-size: 1.05rem; } p { color: var(--text-secondary); line-height: 1.75; } /* ===================== Layout Utilities ===================== */ .container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; } .section { padding: 5rem 0; } .section-alt { background-color: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); } .text-center { text-align: center; } .badge { display: inline-block; background: var(--accent-soft); border: 1px solid var(--accent-border); color: var(--accent-text); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.35rem 0.9rem; border-radius: 999px; margin-bottom: 1rem; } .section-title { margin-bottom: 0.75rem; color: var(--text-primary); } .section-subtitle { color: var(--text-secondary); font-size: 1.1rem; max-width: 640px; margin: 0 auto 3rem; } /* ===================== Header / Nav ===================== */ header { position: sticky; top: 0; z-index: 100; background: var(--header-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); } nav { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 1rem; } .nav-logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 800; font-size: 1.2rem; color: var(--text-primary); text-decoration: none; } .nav-logo:hover { text-decoration: none; color: var(--text-primary); } .nav-logo .icon { font-size: 1.4rem; box-shadow: 0 0 0 1px var(--img-ring); } .nav-logo .brand-en { color: var(--accent); } .nav-links { display: flex; align-items: center; gap: 1.5rem; } .nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; } .nav-links a:hover { color: var(--text-primary); text-decoration: none; } .nav-lang { display: flex; align-items: center; gap: 0.5rem; } .nav-lang select { background: var(--surface); color: var(--text-secondary); border: 1px solid var(--border); border-radius: 6px; padding: 0.3rem 0.6rem; font-size: 0.85rem; cursor: pointer; } .nav-lang select:focus { outline: none; border-color: var(--accent); } /* Theme toggle */ .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; flex-shrink: 0; background: var(--surface); color: var(--text-secondary); border: 1px solid var(--border); border-radius: 999px; font-size: 1rem; line-height: 1; cursor: pointer; padding: 0; transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s; } .theme-toggle:hover { border-color: var(--accent); box-shadow: var(--shadow-red); transform: translateY(-1px); } .theme-toggle .tt-sun { display: var(--tt-sun); } .theme-toggle .tt-moon { display: var(--tt-moon); } /* ===================== Hero Section ===================== */ .hero { padding: 5rem 0 4rem; background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%); position: relative; overflow: hidden; } .hero::before { content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%); pointer-events: none; } .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; } .hero-content {} .hero-eyebrow { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1.25rem; } .hero-title { margin-bottom: 1.25rem; background: var(--hero-title-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; } .hero-slogan { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 2rem; line-height: 1.7; } .hero-slogan strong { color: var(--accent-text); } .hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; } .btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.75rem; border-radius: 999px; /* app 버튼 라운드(20) 필 형태와 톤 일치 */ font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s; border: none; text-decoration: none; } .btn-primary { background: var(--brand-gradient); color: var(--on-accent); box-shadow: var(--shadow-red); } .btn-primary:hover { filter: brightness(0.94); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(230, 0, 0, 0.3); text-decoration: none; color: var(--on-accent); } .btn-outline { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); } .btn-outline:hover { background: var(--surface-2); color: var(--text-primary); text-decoration: none; } /* ===================== Summary Preview Card ===================== */ .hero-preview { position: relative; } .preview-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow); position: relative; overflow: hidden; } .preview-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--brand-gradient); } .preview-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.25rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); } .preview-yt-thumb { width: 48px; height: 36px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; } .preview-meta h4 { font-size: 0.85rem; color: var(--text-primary); margin-bottom: 0.15rem; } .preview-meta span { font-size: 0.75rem; color: var(--text-muted); } .preview-sections { display: flex; flex-direction: column; gap: 1rem; } .preview-section { background: var(--bg); border-radius: var(--radius); padding: 0.9rem 1rem; border: 1px solid var(--border); } .preview-section-title { font-size: 0.8rem; font-weight: 700; color: var(--accent-text); margin-bottom: 0.6rem; display: flex; align-items: center; gap: 0.4rem; } .preview-section-body { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; } .preview-section-body .point { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.3rem; } .preview-section-body .point:last-child { margin-bottom: 0; } .preview-section-body .bullet { color: var(--accent); flex-shrink: 0; margin-top: 0.1rem; } .preview-section-body .ts { color: var(--accent-text); font-size: 0.75rem; font-weight: 600; background: var(--accent-soft); padding: 0.1rem 0.4rem; border-radius: 4px; flex-shrink: 0; } .preview-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 1rem; padding-top: 0.9rem; border-top: 1px solid var(--border); } .preview-copy-btn { background: var(--surface-2); color: var(--text-secondary); border: 1px solid var(--border); border-radius: 8px; padding: 0.4rem 0.9rem; font-size: 0.8rem; cursor: pointer; display: flex; align-items: center; gap: 0.4rem; transition: all 0.2s; } .preview-copy-btn:hover { color: var(--text-primary); border-color: var(--accent); } .preview-tag { font-size: 0.72rem; color: var(--text-muted); } /* ===================== Features Section ===================== */ .features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 1rem; } .feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.75rem; transition: all 0.3s; position: relative; overflow: hidden; text-align: left; } .feature-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--brand-gradient); transform: scaleX(0); transition: transform 0.3s; transform-origin: left; } .feature-card:hover { border-color: var(--accent-border); transform: translateY(-4px); box-shadow: var(--shadow-red); } .feature-card:hover::after { transform: scaleX(1); } .feature-icon { font-size: 2.2rem; margin-bottom: 1rem; } .feature-card h3 { color: var(--text-primary); margin-bottom: 0.5rem; } .feature-card p { font-size: 0.92rem; } /* ===================== How It Works ===================== */ .steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; position: relative; } .step-item { text-align: center; position: relative; } .step-num { width: 56px; height: 56px; background: var(--brand-gradient); color: var(--on-accent); font-size: 1.4rem; font-weight: 800; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; box-shadow: 0 0 0 6px var(--accent-soft); } .step-item h3 { margin-bottom: 0.5rem; color: var(--text-primary); } .step-item p { font-size: 0.9rem; } /* ===================== Disclaimer ===================== */ .disclaimer { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 1rem 1.25rem; font-size: 0.85rem; color: var(--text-muted); margin: 3rem 0 0; text-align: center; } /* ===================== Download Section ===================== */ .download-section { text-align: center; padding: 5rem 0; background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%); border-top: 1px solid var(--border); position: relative; overflow: hidden; } .download-section::before { content: ''; position: absolute; bottom: -100px; right: -100px; width: 400px; height: 400px; background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%); pointer-events: none; } .download-btns { display: flex; align-items: center; justify-content: center; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; } .store-btn { display: inline-flex; align-items: center; gap: 0.75rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.85rem 1.5rem; color: var(--text-primary); font-weight: 600; transition: all 0.2s; text-decoration: none; position: relative; } .store-btn:hover { border-color: var(--accent); box-shadow: var(--shadow-red); transform: translateY(-2px); text-decoration: none; color: var(--text-primary); } .store-btn .store-icon { font-size: 1.5rem; } .store-btn .store-text { text-align: left; line-height: 1.2; } .store-btn .store-sub { font-size: 0.7rem; color: var(--text-muted); font-weight: 400; display: block; } .store-btn .store-name { font-size: 1rem; } /* ===================== Footer ===================== */ footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 3rem 0 1.5rem; } .footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 3rem; margin-bottom: 2rem; } .footer-brand h3 { font-size: 1.2rem; margin-bottom: 0.5rem; } .footer-brand h3 span { color: var(--accent); } .footer-brand p { font-size: 0.88rem; color: var(--text-muted); max-width: 340px; } .footer-links h4 { color: var(--text-secondary); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.75rem; } .footer-links ul { display: flex; flex-direction: column; gap: 0.5rem; } .footer-links a { color: var(--text-muted); font-size: 0.88rem; transition: color 0.2s; } .footer-links a:hover { color: var(--text-secondary); text-decoration: none; } .footer-bottom { border-top: 1px solid var(--border); padding-top: 1.5rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; } .footer-bottom p { font-size: 0.82rem; color: var(--text-muted); } /* ===================== Sub Pages (Privacy/Terms/FAQ) ===================== */ .page-hero { padding: 4rem 0 3rem; background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%); border-bottom: 1px solid var(--border); } .page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 0.5rem; } .page-hero p { font-size: 0.95rem; color: var(--text-muted); } .page-content { padding: 4rem 0; max-width: 800px; margin: 0 auto; } .page-content h2 { font-size: 1.4rem; color: var(--text-primary); margin: 2.5rem 0 0.75rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border); } .page-content h2:first-child { margin-top: 0; } .page-content h3 { font-size: 1.1rem; color: var(--text-secondary); margin: 1.5rem 0 0.5rem; } .page-content p { margin-bottom: 0.75rem; color: var(--text-secondary); } .page-content ul { list-style: disc; padding-left: 1.5rem; color: var(--text-secondary); margin-bottom: 0.75rem; } .page-content ul li { margin-bottom: 0.4rem; } .page-content a { color: var(--accent-text); } /* ===================== FAQ ===================== */ .faq-list { display: flex; flex-direction: column; gap: 1rem; margin-top: 1rem; } .faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; } .faq-question { width: 100%; background: none; border: none; color: var(--text-primary); font-size: 1rem; font-weight: 600; text-align: left; padding: 1.25rem 1.5rem; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 1rem; transition: background 0.2s; } .faq-question:hover { background: var(--hover-veil); } .faq-question.active { color: var(--accent-text); } .faq-arrow { font-size: 0.85rem; transition: transform 0.3s; flex-shrink: 0; color: var(--text-muted); } .faq-question.active .faq-arrow { transform: rotate(180deg); color: var(--accent); } .faq-answer { display: none; padding: 0 1.5rem 1.25rem; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.75; border-top: 1px solid var(--border); padding-top: 1rem; } .faq-answer.open { display: block; } /* ===================== Responsive ===================== */ @media (max-width: 768px) { .hero-inner { grid-template-columns: 1fr; } .hero-preview { order: -1; } .footer-inner { grid-template-columns: 1fr; gap: 2rem; } .nav-links { display: none; } .steps-grid { grid-template-columns: 1fr 1fr; } } @media (max-width: 480px) { .steps-grid { grid-template-columns: 1fr; } .hero-cta { flex-direction: column; } .btn { width: 100%; justify-content: center; } }