/* ============================================
   SaveLemon Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* --- CSS Variables (Light Mode) --- */
:root {
  --primary: #FFE135;
  --primary-hover: #FFD700;
  --primary-glow: rgba(255,225,53,0.3);
  --accent: #FF6B35;
  --bg-body: #F5F5F7;
  --bg-card: #FFFFFF;
  --bg-header: rgba(255,255,255,0.85);
  --bg-input: #FFFFFF;
  --bg-hero: linear-gradient(135deg, #FFF9C4 0%, #FFE082 50%, #FFD54F 100%);
  --text-primary: #1A1A2E;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --border-color: rgba(0,0,0,0.08);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --bg-body: #0A0A14;
  --bg-card: #14142B;
  --bg-header: rgba(10,10,20,0.9);
  --bg-input: #1A1A2E;
  --bg-hero: linear-gradient(135deg, #1A1A2E 0%, #0F0F1A 50%, #14142B 100%);
  --text-primary: #F1F1F1;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  --border-color: rgba(255,255,255,0.08);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
}

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body {
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg-body);
  color:var(--text-primary);
  line-height:1.6;
  transition:var(--transition);
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button{cursor:pointer;border:none;background:none;font-family:inherit}
ul{list-style:none}

/* --- Container --- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* --- Header --- */
.header {
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:var(--bg-header);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border-color);
  transition:var(--transition);
}
.header-inner {
  display:flex;align-items:center;justify-content:space-between;
  max-width:1200px;margin:0 auto;padding:0 20px;height:64px;
}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.25rem}
.logo-icon{width:32px;height:32px}
.logo span{color:var(--primary)}
.nav{display:flex;align-items:center;gap:24px}
.nav a {
  font-size:0.9rem;font-weight:500;color:var(--text-secondary);
  transition:var(--transition);position:relative;
}
.nav a:hover{color:var(--primary)}
.nav a.active{color:var(--primary)}

/* Header Actions (lang dropdown + theme toggle — always visible) */
.header-actions{display:flex;align-items:center;gap:12px}

/* Theme Toggle */
.theme-toggle {
  width:40px;height:40px;border-radius:var(--radius-full);
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-card);border:1px solid var(--border-color);
  transition:var(--transition);font-size:1.1rem;
}
.theme-toggle:hover{background:var(--primary);color:#1A1A2E;transform:rotate(180deg)}

/* Language Dropdown */
.lang-dropdown {
  position:relative;
}
.lang-btn {
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-full);
  background:var(--bg-card);border:1px solid var(--border-color);
  color:var(--text-primary);font-size:0.85rem;font-weight:500;
  transition:var(--transition);cursor:pointer;
  font-family:inherit;white-space:nowrap;
}
.lang-btn:hover {
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-glow);
}
.lang-dropdown.open .lang-btn {
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-glow);
}
.lang-globe {
  flex-shrink:0;color:var(--text-secondary);
  transition:var(--transition);
}
.lang-btn:hover .lang-globe { color:var(--primary); }
.lang-btn-label {
  max-width:80px;overflow:hidden;text-overflow:ellipsis;
}
.lang-chevron {
  flex-shrink:0;color:var(--text-muted);
  transition:transform 0.3s ease;
}
.lang-dropdown.open .lang-chevron {
  transform:rotate(180deg);
}
.lang-menu {
  position:absolute;top:calc(100% + 8px);right:0;
  min-width:200px;max-height:0;overflow:hidden;
  background:var(--bg-card);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-lg);
  border:1px solid var(--border-color);
  opacity:0;
  transform:translateY(-8px);
  transition:max-height 0.35s cubic-bezier(0.4,0,0.2,1),
             opacity 0.25s ease,
             transform 0.25s ease;
  z-index:150;
}
.lang-dropdown.open .lang-menu {
  max-height:400px;opacity:1;transform:translateY(0);
  overflow-y:auto;
}
.lang-menu::-webkit-scrollbar { width:4px; }
.lang-menu::-webkit-scrollbar-track { background:transparent; }
.lang-menu::-webkit-scrollbar-thumb {
  background:var(--border-color);border-radius:4px;
}
.lang-item {
  display:flex;align-items:center;gap:10px;
  width:100%;padding:10px 16px;
  background:transparent;border:none;
  color:var(--text-primary);font-size:0.88rem;
  font-family:inherit;cursor:pointer;
  transition:var(--transition);
  text-align:left;
}
.lang-item:hover {
  background:rgba(255,225,53,0.08);
  color:var(--primary);
}
.lang-item.active {
  background:rgba(255,225,53,0.12);
  color:var(--primary);font-weight:600;
}
.lang-item .lang-flag {
  font-size:1.15rem;flex-shrink:0;line-height:1;
}
.lang-item .lang-name {
  flex:1;
}

/* Mobile Menu */
.mobile-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.mobile-toggle span{display:block;width:22px;height:2px;background:var(--text-primary);transition:var(--transition);border-radius:2px}

/* --- Hero Section --- */
.hero {
  padding:140px 20px 80px;
  background:var(--bg-hero);
  text-align:center;
  position:relative;overflow:hidden;
}
.hero::before {
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle at 30% 50%,var(--primary-glow) 0%,transparent 50%);
  animation:heroFloat 8s ease-in-out infinite;
}
@keyframes heroFloat{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-20px)}}
.hero-content{position:relative;z-index:1;max-width:720px;margin:0 auto}
.hero h1 {
  font-size:clamp(2rem,5vw,3.2rem);font-weight:800;
  line-height:1.15;margin-bottom:16px;
  background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
[data-theme="dark"] .hero h1 {
  background:linear-gradient(135deg,#FFFFFF 0%,var(--primary) 100%);
  -webkit-background-clip:text;background-clip:text;
}
.hero p{font-size:1.1rem;color:var(--text-secondary);margin-bottom:40px;max-width:540px;margin-left:auto;margin-right:auto}

/* --- Downloader Box --- */
.dl-box {
  max-width:640px;margin:0 auto;
  background:var(--bg-card);
  border-radius:var(--radius-xl);
  padding:8px;
  box-shadow:var(--shadow-lg),0 0 0 1px var(--border-color);
  display:flex;gap:8px;
  transition:var(--transition);
}
.dl-box:focus-within{box-shadow:var(--shadow-lg),0 0 0 2px var(--primary)}
.dl-box input {
  flex:1;border:none;outline:none;
  padding:14px 20px;font-size:1rem;
  background:transparent;color:var(--text-primary);
  font-family:inherit;
}
.dl-box input::placeholder{color:var(--text-muted)}
.btn-paste {
  padding:14px 16px;border-radius:var(--radius-lg);
  color:var(--text-secondary);font-size:0.85rem;font-weight:600;
  transition:var(--transition);white-space:nowrap;
  display:flex;align-items:center;gap:6px;
}
.btn-paste:hover{background:var(--bg-body);color:var(--text-primary)}
.btn-download {
  padding:14px 28px;border-radius:var(--radius-lg);
  background:var(--primary);color:#1A1A2E;
  font-weight:700;font-size:0.95rem;
  transition:var(--transition);white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.btn-download:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 16px var(--primary-glow)}
.btn-download:active{transform:translateY(0)}
.btn-download.loading{opacity:0.7;pointer-events:none}

/* Spinner */
.spinner{display:none;width:18px;height:18px;border:2px solid rgba(26,26,46,0.3);border-top-color:#1A1A2E;border-radius:50%;animation:spin 0.6s linear infinite}
.loading .spinner{display:block}
.loading .btn-text{display:none}
@keyframes spin{to{transform:rotate(360deg)}}

/* URL Validation */
.dl-box.valid{box-shadow:var(--shadow-lg),0 0 0 2px #22C55E}
.dl-box.invalid{box-shadow:var(--shadow-lg),0 0 0 2px #EF4444}

/* --- Result Section --- */
.result-section{padding:40px 20px 0;display:none}
.result-section.visible{display:block;animation:slideUp 0.5s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

.result-card {
  max-width:720px;margin:0 auto;
  background:var(--bg-card);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-md);overflow:hidden;
  border:1px solid var(--border-color);
}
.result-header{padding:20px 24px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:12px}
.result-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.9rem;color:#1A1A2E}
.result-meta h3{font-size:0.95rem;font-weight:600}
.result-meta span{font-size:0.8rem;color:var(--text-muted)}
.result-media{padding:16px 24px}
.media-grid{display:grid;gap:8px;border-radius:var(--radius-md);overflow:hidden}
.media-grid.cols-1{grid-template-columns:1fr}
.media-grid.cols-2{grid-template-columns:1fr 1fr}
.media-grid.cols-3{grid-template-columns:1fr 1fr 1fr}
.media-grid img,.media-grid video {
  width:100%;height:100%;object-fit:cover;
  border-radius:var(--radius-sm);
  aspect-ratio:1;background:var(--bg-body);
}
.result-actions{padding:16px 24px 24px;display:flex;flex-wrap:wrap;gap:8px}
.btn-action {
  padding:10px 20px;border-radius:var(--radius-full);
  font-size:0.85rem;font-weight:600;
  transition:var(--transition);
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--border-color);
  color:var(--text-primary);background:var(--bg-card);
}
.btn-action:hover{border-color:var(--primary);color:var(--primary)}
.btn-action.primary{background:var(--primary);color:#1A1A2E;border-color:var(--primary)}
.btn-action.primary:hover{background:var(--primary-hover);transform:translateY(-1px)}

/* --- Skeleton Loader --- */
.skeleton{display:none;max-width:720px;margin:20px auto 0;padding:24px;background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-color)}
.skeleton.visible{display:block}
.skeleton-line{height:16px;background:var(--bg-body);border-radius:8px;margin-bottom:12px;animation:shimmer 1.5s infinite}
.skeleton-line.w60{width:60%}
.skeleton-line.w80{width:80%}
.skeleton-line.w40{width:40%}
.skeleton-img{width:100%;height:200px;background:var(--bg-body);border-radius:var(--radius-md);margin:16px 0;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%{opacity:0.6}50%{opacity:1}100%{opacity:0.6}}

/* --- Section Styles --- */
section{padding:80px 20px}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;margin-bottom:12px}
.section-title p{color:var(--text-secondary);max-width:560px;margin:0 auto}
.section-badge {
  display:inline-block;padding:6px 16px;
  background:rgba(255,225,53,0.15);color:var(--accent);
  border-radius:var(--radius-full);font-size:0.8rem;
  font-weight:600;margin-bottom:12px;letter-spacing:0.5px;
}

/* --- Features Grid --- */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;max-width:1000px;margin:0 auto}
.feature-card {
  background:var(--bg-card);border-radius:var(--radius-lg);
  padding:32px 28px;border:1px solid var(--border-color);
  transition:var(--transition);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary)}
.feature-icon{width:48px;height:48px;border-radius:var(--radius-md);background:rgba(255,225,53,0.12);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:16px}
.feature-card h3{font-size:1.05rem;font-weight:600;margin-bottom:8px}
.feature-card p{font-size:0.9rem;color:var(--text-secondary);line-height:1.5}

/* --- How It Works --- */
.steps{display:flex;gap:24px;max-width:900px;margin:0 auto;justify-content:center;flex-wrap:wrap}
.step {
  flex:1;min-width:240px;max-width:300px;text-align:center;
  padding:32px 24px;background:var(--bg-card);
  border-radius:var(--radius-lg);border:1px solid var(--border-color);
  transition:var(--transition);position:relative;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-num {
  width:48px;height:48px;border-radius:50%;
  background:var(--primary);color:#1A1A2E;
  font-weight:800;font-size:1.2rem;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;
}
.step h3{font-size:1rem;font-weight:600;margin-bottom:8px}
.step p{font-size:0.85rem;color:var(--text-secondary)}

/* --- FAQ Accordion --- */
.faq-list{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-color);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--primary)}
.faq-question {
  width:100%;padding:20px 24px;display:flex;justify-content:space-between;
  align-items:center;font-weight:600;font-size:0.95rem;
  text-align:left;color:var(--text-primary);transition:var(--transition);cursor:pointer;
  background:transparent;
}
.faq-question:hover{color:var(--primary)}
.faq-arrow{transition:transform 0.3s ease;font-size:1.2rem;color:var(--text-muted);flex-shrink:0;margin-left:12px}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease}
.faq-answer-inner{padding:0 24px 20px;color:var(--text-secondary);font-size:0.9rem;line-height:1.7}

/* --- SEO Content --- */
.seo-content{max-width:780px;margin:0 auto}
.seo-content h2{font-size:1.4rem;font-weight:700;margin-bottom:16px}
.seo-content h3{font-size:1.1rem;font-weight:600;margin:24px 0 8px}
.seo-content p{color:var(--text-secondary);line-height:1.8;margin-bottom:16px;font-size:0.95rem}

/* --- Ad Slot --- */
.ad-slot {
  max-width:728px;margin:0 auto;padding:20px;
  min-height:90px;background:var(--bg-card);
  border:1px dashed var(--border-color);
  border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);font-size:0.8rem;
}

/* --- Footer --- */
.footer{background:var(--bg-card);border-top:1px solid var(--border-color);padding:48px 20px 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;max-width:1200px;margin:0 auto}
.footer-brand p{color:var(--text-secondary);font-size:0.85rem;margin-top:12px;line-height:1.6}
.footer h4{font-weight:600;font-size:0.9rem;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-secondary);font-size:0.85rem;transition:var(--transition)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom {
  max-width:1200px;margin:32px auto 0;padding-top:24px;
  border-top:1px solid var(--border-color);
  display:flex;justify-content:space-between;align-items:center;
  font-size:0.8rem;color:var(--text-muted);
}

/* --- Toast --- */
.toast-container{position:fixed;top:80px;right:20px;z-index:200;display:flex;flex-direction:column;gap:8px}
.toast {
  padding:14px 20px;border-radius:var(--radius-md);
  font-size:0.85rem;font-weight:500;
  box-shadow:var(--shadow-lg);
  animation:toastIn 0.3s ease,toastOut 0.3s ease 2.7s forwards;
  display:flex;align-items:center;gap:8px;min-width:280px;
  border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-primary);
}
.toast.success{border-left:4px solid #22C55E}
.toast.error{border-left:4px solid #EF4444}
.toast.info{border-left:4px solid #3B82F6}
@keyframes toastIn{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}
@keyframes toastOut{to{opacity:0;transform:translateX(100%)}}

/* --- Scroll Animations --- */
.animate{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.animate.visible{opacity:1;transform:translateY(0)}

/* --- Page Content (for subpages) --- */
.page-hero{padding:120px 20px 60px;text-align:center;background:var(--bg-hero)}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.5rem);font-weight:800;margin-bottom:12px}
.page-hero p{color:var(--text-secondary);max-width:540px;margin:0 auto}
.page-content{padding:60px 20px;max-width:780px;margin:0 auto}
.page-content h2{font-size:1.3rem;font-weight:700;margin:32px 0 12px}
.page-content p,.page-content li{color:var(--text-secondary);line-height:1.8;margin-bottom:12px;font-size:0.95rem}
.page-content ul{padding-left:24px;list-style:disc}

/* Contact Form */
.contact-form{display:flex;flex-direction:column;gap:16px;max-width:560px;margin:0 auto}
.form-group label{display:block;font-weight:600;font-size:0.9rem;margin-bottom:6px}
.form-group input,.form-group textarea {
  width:100%;padding:12px 16px;border:1px solid var(--border-color);
  border-radius:var(--radius-md);background:var(--bg-input);
  color:var(--text-primary);font-family:inherit;font-size:0.95rem;
  transition:var(--transition);
}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.form-group textarea{min-height:120px;resize:vertical}
.btn-submit {
  padding:14px 32px;background:var(--primary);color:#1A1A2E;
  border:none;border-radius:var(--radius-full);
  font-weight:700;font-size:1rem;cursor:pointer;
  transition:var(--transition);align-self:flex-start;
}
.btn-submit:hover{background:var(--primary-hover);transform:translateY(-1px)}

/* --- Responsive --- */
@media(max-width:768px) {
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg-header);backdrop-filter:blur(20px);padding:20px;flex-direction:column;border-bottom:1px solid var(--border-color)}
  .nav.open{display:flex}
  .mobile-toggle{display:flex}
  .dl-box{flex-direction:column}
  .btn-paste,.btn-download{justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .steps{flex-direction:column;align-items:center}
  .features-grid{grid-template-columns:1fr}
  .media-grid.cols-3{grid-template-columns:1fr 1fr}
  /* Mobile: hide language label, show only globe icon */
  .lang-btn-label{display:none}
  .lang-btn{padding:8px 10px}
  .lang-chevron{display:none}
}

/* --- RTL Support (Arabic) --- */
[dir="rtl"] {
  direction:rtl;
  text-align:right;
}
[dir="rtl"] .header-inner { flex-direction:row-reverse; }
[dir="rtl"] .header-actions { flex-direction:row-reverse; }
[dir="rtl"] .nav { flex-direction:row-reverse; }
[dir="rtl"] .dl-box { flex-direction:row-reverse; }
[dir="rtl"] .dl-box input { text-align:right; }
[dir="rtl"] .lang-menu { right:auto;left:0; }
[dir="rtl"] .lang-item { flex-direction:row-reverse;text-align:right; }
[dir="rtl"] .faq-question { flex-direction:row-reverse;text-align:right; }
[dir="rtl"] .faq-answer-inner { text-align:right; }
[dir="rtl"] .result-header { flex-direction:row-reverse; }
[dir="rtl"] .result-actions { flex-direction:row-reverse; }
[dir="rtl"] .footer-grid { direction:rtl; }
[dir="rtl"] .footer-bottom { flex-direction:row-reverse; }
[dir="rtl"] .feature-card { text-align:right; }
[dir="rtl"] .step { text-align:center; }
[dir="rtl"] .seo-content { text-align:right; }
[dir="rtl"] .page-content { text-align:right; }
[dir="rtl"] .toast { flex-direction:row-reverse; }
@media(max-width:768px) {
  [dir="rtl"] .nav { flex-direction:column; }
  [dir="rtl"] .dl-box { flex-direction:column; }
  [dir="rtl"] .footer-bottom { flex-direction:column; }
}