:root {
            --bg-light: #f0f2f5; --card-light: #ffffff; --text-light: #1c1e21; --text-secondary-light: #606770; --border-light: #e4e6eb;
            --bg-dark: #121826; --card-dark: #1F2937; --text-dark: #F9FAFB; --text-secondary-dark: #9CA3AF; --border-dark: #374151;
            --accent: #38BDF8; --accent-hover: #0EA5E9; --success: #10B981; --error: #EF4444;
            --logo-highlight: var(--accent);
            --bg-color: var(--bg-dark); --card-color: var(--card-dark); --text-color: var(--text-dark); --text-secondary: var(--text-secondary-dark); --border-color: var(--border-dark);
        }
        html[data-theme='light'] {
            --bg-color: var(--bg-light); --card-color: var(--card-light); --text-color: var(--text-light); --text-secondary: var(--text-secondary-light); --border-color: var(--border-light);
            --logo-highlight: var(--accent-hover);
        }
        *,*::before,*::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: 'Poppins', sans-serif; background-color: var(--bg-color); color: var(--text-color); overflow-x: hidden; transition: background-color 0.3s, color 0.3s; }
        body.nav-open { overflow: hidden; }
        body.nav-open::before { content: ''; position: fixed; inset: 0; background-color: rgba(0, 0, 0, 0.5); z-index: 1001; transition: opacity 0.3s; opacity: 1; }
        html[data-theme='light'] body.nav-open::before { background-color: rgba(0, 0, 0, 0.3); }
        .container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
        .navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; transition: background-color 0.3s ease, border-color 0.3s ease; }
        .navbar-scrolled { background-color: rgba(18, 24, 38, 0.85); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-dark); }
        html[data-theme='light'] .navbar-scrolled { background-color: rgba(240, 242, 245, 0.85); border-bottom: 1px solid var(--border-light); }
        .nav-content { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .nav-logo { font-size: 1.5rem; font-weight: 700; color: var(--text-color); text-decoration: none; transition: transform 0.3s ease; flex-shrink: 0; }
        .nav-logo:hover { transform: scale(1.05); }
        .nav-logo .highlight { color: var(--logo-highlight); }
        .nav-menu { display: flex; align-items: center; gap: 2rem; }
        .nav-links { list-style: none; display: flex; gap: 2rem; }
        .nav-links a { color: var(--text-secondary); text-decoration: none; font-weight: 500; transition: color 0.3s, transform 0.3s; position: relative; padding-bottom: 5px; }
        .nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--accent); transition: width 0.3s ease; }
        .nav-links a:hover { color: var(--accent); transform: translateY(-2px); }
        .nav-links a:hover::after { width: 100%; }
        .desktop-controls { display: flex; align-items: center; gap: 1rem; }
        .lang-select-wrapper { position: relative; }
        .lang-select-wrapper::after { content: '▼'; font-size: 0.6rem; position: absolute; right: 10px; top: 50%; transform: translateY(-50%); pointer-events: none; color: var(--text-secondary); }
        #lang-select, #lang-select-mobile { -webkit-appearance: none; -moz-appearance: none; appearance: none; background: transparent; border: 1px solid var(--border-color); color: var(--text-color); padding: 6px 24px 6px 10px; border-radius: 6px; font-family: 'Poppins', sans-serif; font-weight: 500; cursor: pointer; transition: all 0.3s; }
        #lang-select:focus, #lang-select-mobile:focus { outline: none; border-color: var(--accent); }
        #lang-select option, #lang-select-mobile option { background-color: var(--card-color); color: var(--text-color); }
        .theme-toggle { background: transparent; border: none; cursor: pointer; color: var(--text-secondary); padding: 5px; display: flex; align-items: center; justify-content: center; transition: color 0.3s, transform 0.3s; }
        .theme-toggle:hover { color: var(--text-color); transform: scale(1.1); }
        .theme-toggle-icon { width: 24px; height: 24px; color: var(--text-color); transition: transform .5s cubic-bezier(.5,1.25,.75,1.25); }
        .theme-toggle-icon .sun, .theme-toggle-icon .sun-beams { transform-origin: center center; transition: transform .5s cubic-bezier(.5,1.25,.75,1.25); }
        html[data-theme='dark'] .theme-toggle-icon { transform: rotate(45deg); }
        html[data-theme='light'] .theme-toggle-icon { transform: rotate(0); }
        html[data-theme='light'] .theme-toggle-icon .sun { mask: none; }
        html[data-theme='dark'] .theme-toggle-icon .sun { mask: url(#moon-mask); }
        html[data-theme='light'] .theme-toggle-icon .sun-beams { transform: rotateZ(0deg); opacity: 1; }
        html[data-theme='dark'] .theme-toggle-icon .sun-beams { transform: rotateZ(-90deg); opacity: 0; }
        .hamburger { display: none; cursor: pointer; background: none; border: none; z-index: 1003; padding: 10px; }
        .hamburger .bar { display: block; width: 25px; height: 3px; margin: 5px auto; transition: all 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55); background-color: var(--text-color); border-radius: 3px; }
        .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
        .hamburger.active .bar:nth-child(2) { opacity: 0; }
        .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
        .nav-menu-mobile { display: none; }
        .hero { display: flex; align-items: center; justify-content: space-between; min-height: 100vh; padding-top: 70px; gap: 2rem; }
        .fade-in-element { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
        .fade-in-element.is-visible { opacity: 1; transform: translateY(0); }
        .hero-text { flex: 1; max-width: 550px; }
        .hero-text h1 { font-size: 3.5rem; font-weight: 700; line-height: 1.2; margin-bottom: 1.5rem; }
        .hero-text p { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2.5rem; max-width: 500px; }
        .hero-cta { padding: 14px 32px; background: linear-gradient(90deg, var(--accent), var(--accent-hover)); color: white; font-weight: 600; font-size: 1rem; text-decoration: none; border-radius: 50px; transition: transform 0.3s, box-shadow 0.3s; display: inline-block; }
        html[data-theme='light'] .hero-cta { color: var(--bg-dark); }
        .hero-cta:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(56, 189, 248, 0.2); }
        .hero-image-stack { position: relative; display: inline-block; max-width: 500px; width: 100%; }
        .hero-image-stack .blob-bg { width: 100%; height: auto; }
        .hero-image-stack .play-overlay { position: absolute; width: 25%; height: 25%; top: 50%; left: 50%; transform: translate(-50%, -50%); color: var(--card-dark); }
        html[data-theme='light'] .hero-image-stack .play-overlay { color: var(--card-light); }
        main { padding-top: 5rem; }
        .section { padding-bottom: 5rem; }
        .section-header { text-align: center; margin-bottom: 4rem; }
        .section-header h2 { font-size: 2.5rem; margin-bottom: 1rem; }
        .section-header .subtitle { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
        .steps-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
        .step-card { text-align: center; background-color: var(--card-color); padding: 2.5rem 2rem; border-radius: 16px; border: 1px solid var(--border-color); transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s; }
        .step-card:hover { transform: translateY(-10px); border-color: var(--accent); box-shadow: 0 15px 30px rgba(56, 189, 248, 0.1); }
        .step-card .step-icon { display: inline-flex; align-items: center; justify-content: center; color: var(--accent); margin-bottom: 1.5rem; }
        .step-card .step-icon svg { width: 50px; height: 50px; }
        .step-card .step-title { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--text-color); }
        .step-card .step-description { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }
        .generator-box { background-color: var(--card-color); border-radius: 16px; padding: 3rem; max-width: 700px; margin: 0 auto; border: 1px solid var(--border-color); transition: background-color 0.3s; }
        .form-group { margin-bottom: 1.5rem; }
        .form-group label { display: block; font-weight: 500; margin-bottom: 0.5rem; color: var(--text-secondary); }
        .form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; background-color: var(--bg-color); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-color); font-size: 1rem; transition: all 0.3s; font-family: 'Poppins', sans-serif; }
        .form-group textarea { resize: vertical; min-height: 80px; }
        .form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2); }
        .form-group select { -webkit-appearance: none; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%239CA3AF'%3E%3Cpath d='M11.9997 13.1714L16.9495 8.22168L18.3637 9.63589L11.9997 15.9999L5.63574 9.63589L7.04996 8.22168L11.9997 13.1714Z'%3E%3C/path%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; background-size: 24px; }
        .generate-button { width: 100%; padding: 14px; background: var(--accent); color: white; border: none; border-radius: 8px; font-size: 1.1rem; font-weight: 600; cursor: pointer; transition: background-color 0.3s, opacity 0.3s, transform 0.3s; }
        html[data-theme='light'] .generate-button { color: var(--bg-dark); }
        .generate-button:hover:not(:disabled) { background-color: var(--accent-hover); transform: translateY(-2px); }
        .generate-button:disabled { opacity: 0.6; cursor: wait; }
        #result-container { margin-top: 2rem; opacity: 0; transform: translateY(10px); transition: opacity 0.5s, transform 0.5s; max-height: 0; overflow: hidden; }
        #result-container.visible { opacity: 1; transform: translateY(0); max-height: 300px; }
        .result-box { display: flex; align-items: center; gap: 0.5rem; background-color: var(--bg-color); border: 1px solid var(--border-color); border-radius: 8px; padding: 5px; }
        #generated-link { flex-grow: 1; padding: 10px; background: transparent; border: none; color: var(--text-color); font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .result-buttons { display: flex; gap: 0.5rem; }
        .result-button { padding: 10px 20px; background-color: var(--accent); color: white; border: none; border-radius: 6px; cursor: pointer; font-weight: 600; transition: background-color 0.3s, transform 0.3s; flex-shrink: 0; }
        html[data-theme='light'] .result-button { color: var(--bg-dark); }
        .result-button:hover { background-color: var(--accent-hover); transform: translateY(-2px); }
        #copy-button.copied { background-color: var(--success); color: var(--text-dark); }
        #error-message { color: var(--error); text-align: center; margin-top: 1rem; display: none; }
        .about-content { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: center; }
        .about-image { text-align: center; }
        .about-image svg { width: 100%; max-width: 250px; color: var(--accent); opacity: 0.8; }
        .about-text h3 { font-size: 1.5rem; margin-bottom: 1rem; color: var(--text-color); }
        .about-text p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 1rem; }
        footer { text-align: center; padding: 2rem 0; color: var(--text-secondary); font-size: 0.9rem; border-top: 1px solid var(--border-color); margin-top: 3rem; transition: border-color 0.3s;}
        .footer-content { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
        .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; }
        .contact-link { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--text-secondary); text-decoration: none; font-weight: 500; transition: color 0.3s, transform 0.3s; }
        .contact-link:hover { color: var(--accent); transform: translateY(-2px); }
        .contact-link svg { width: 24px; height: 24px; }
        #cookie-consent-banner { position: fixed; bottom: -100%; left: 50%; transform: translateX(-50%); width: calc(100% - 2rem); max-width: 500px; background-color: var(--card-color); padding: 1.5rem; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); z-index: 2000; display: flex; flex-direction: column; gap: 1rem; transition: bottom 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
        #cookie-consent-banner.visible { bottom: 1rem; }
        .cookie-buttons { display: flex; gap: 1rem; }
        .cookie-button { flex: 1; padding: 10px; border: none; border-radius: 8px; font-weight: 600; cursor: pointer; transition: background-color 0.3s; }
        #cookie-accept { background-color: var(--accent); color: white; }
        html[data-theme='light'] #cookie-accept { color: var(--bg-dark); }
        #cookie-accept:hover { background-color: var(--accent-hover); }
        #cookie-decline { background-color: var(--border-color); color: var(--text-color); }
        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .hamburger { display: block; }
            .nav-menu-mobile { display: flex; position: fixed; top: 0; right: 0; width: 80%; max-width: 320px; height: 100%; background-color: var(--card-color); flex-direction: column; align-items: stretch; padding-top: 80px; box-shadow: -10px 0 30px rgba(0,0,0,0.2); transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); z-index: 1002; }
            .nav-menu-mobile.active { transform: translateX(0); }
            .nav-menu-mobile .nav-links { flex-direction: column; gap: 0; width: 100%; }
            .nav-menu-mobile .nav-links a { display: block; padding: 1rem 1.5rem; font-size: 1.1rem; color: var(--text-color); width: 100%; font-weight: 500; border-bottom: 1px solid var(--border-color); transition: background-color 0.2s, color 0.2s; }
            .nav-menu-mobile .nav-links a:hover { background-color: var(--bg-color); color: var(--accent); }
            .nav-menu-mobile .nav-links a::after { display: none; }
            .nav-menu-mobile .mobile-controls { display: flex; justify-content: space-around; align-items: center; padding: 1.5rem; border-top: 1px solid var(--border-color); margin-top: auto; }
            .hero, .hero-image { text-align: center; }
            .hero { flex-direction: column; min-height: auto; padding: 120px 0 50px 0; }
            .hero-text h1 { font-size: 2.5rem; }
            .result-box { flex-wrap: wrap; }
            #generated-link { width: 100%; margin-bottom: 0.5rem; text-align: center; }
            .result-buttons { flex-grow: 1; justify-content: space-between; width: 100%; }
            .result-button { flex-grow: 1; }
            .about-content { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
            .about-image { margin: 0 auto; }
        }