:root{--bg-main: #f5f6f4;--bg-surface: #ffffff;--bg-muted: #eef0ed;--text-primary: #2f3a4a;--text-secondary: #5c6675;--text-muted: #8a93a3;--color-primary: #1fa6a0;--color-accent: #ff9f66;--border-color: #e1e4de;--shadow-soft: 0 8px 24px rgba(0, 0, 0, .04)}[data-theme=dark]{--bg-main: #0e1416;--bg-surface: #141c1f;--bg-muted: #1b2529;--text-primary: #e7eceb;--text-secondary: #b5c1be;--text-muted: #8a9a96;--color-primary: #1fa6a0;--color-accent: #ffd23f;--border-color: #243236;--shadow-soft: 0 8px 24px rgba(0, 0, 0, .4)}.header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;background:transparent;border-bottom:1px solid transparent;backdrop-filter:blur(0px);-webkit-backdrop-filter:blur(0px);transition:background .8s cubic-bezier(.4,0,.2,1),border-color .8s cubic-bezier(.4,0,.2,1),backdrop-filter .8s cubic-bezier(.4,0,.2,1),box-shadow .8s cubic-bezier(.4,0,.2,1)}.header--scrolled{background:linear-gradient(to bottom,#ffffff40,#ffffff26);backdrop-filter:blur(30px) saturate(180%);-webkit-backdrop-filter:blur(30px) saturate(180%);border-bottom:1px solid rgba(0,0,0,.08);box-shadow:0 1px #ffffff1a inset,0 1px 2px #0000000d}[data-theme=dark] .header--scrolled{background:linear-gradient(to bottom,#0006,#0000004d);backdrop-filter:blur(30px) saturate(180%);-webkit-backdrop-filter:blur(30px) saturate(180%);border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 1px #ffffff0d inset,0 1px 2px #0000004d}.header .container{width:100%;margin:0 auto;padding:0 16px}@media (min-width: 768px){.header .container{padding:0 32px}}@media (min-width: 992px){.header .container{max-width:1200px}}@media (min-width: 1200px){.header .container{max-width:1400px}}.header__content{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px}.header__logo{font-size:1.5rem;font-weight:700;color:var(--color-primary);text-decoration:none;display:flex;align-items:center;gap:8px}.header__logo:hover{text-decoration:none}.header__logo--image .header__logo-text{display:none}.header__logo--image .header__logo-image{display:block!important;width:40px;height:auto;object-fit:contain}.header__logo-text{display:inline-block}.header__logo-image{display:none;width:40px;height:auto;max-width:40px;object-fit:contain}.header__nav{display:none;gap:24px}@media (min-width: 768px){.header__nav{display:flex}}.header__nav-link{color:var(--text-primary);text-decoration:none;transition-property:color;transition-duration:.3s ease;transition-timing-function:ease}.header__nav-link:hover{color:var(--color-primary);text-decoration:none}.header__controls{display:flex;align-items:center;gap:16px;margin-left:auto}.header__lang-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:none;border:1px solid var(--border-color);padding:8px 16px;border-radius:4px;cursor:pointer;transition-property:background-color,border-color;transition-duration:.3s ease;transition-timing-function:ease}.header__lang-toggle:hover{background-color:var(--bg-muted)}.header__lang-icon{flex-shrink:0;color:var(--text-primary)}.header__lang-text{font-size:.875rem;font-weight:500;color:var(--text-primary)}.header__theme-toggle{position:relative;width:56px;height:28px;background-color:var(--bg-muted);border:1px solid var(--border-color);border-radius:14px;cursor:pointer;transition-property:background-color,border-color;transition-duration:.3s ease;transition-timing-function:ease;display:flex;align-items:center;justify-content:space-between;padding:0 4px}.header__theme-toggle:hover{background-color:var(--bg-muted)}.header__theme-toggle:after{content:"";position:absolute;width:20px;height:20px;background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:50%;left:4px;top:50%;transform:translateY(-50%);transition-property:transform,background-color;transition-duration:.3s ease;transition-timing-function:ease;z-index:1}[data-theme=dark] .header__theme-toggle:after{transform:translateY(-50%) translate(28px)}[data-theme=light] .header__theme-toggle:after{transform:translateY(-50%) translate(0)}.header__theme-icon{position:relative;z-index:2;color:var(--text-secondary);transition-property:color,opacity;transition-duration:.3s ease;transition-timing-function:ease;flex-shrink:0;display:flex;align-items:center;justify-content:center;width:14px;height:14px}[data-theme=dark] .header__theme-icon--sun{opacity:.3}[data-theme=light] .header__theme-icon--sun{opacity:1;color:var(--text-primary)}.header__theme-icon--sun{margin-left:3.5px}[data-theme=light] .header__theme-icon--moon{opacity:.3}[data-theme=dark] .header__theme-icon--moon{opacity:1;color:var(--text-primary)}