/* ══════════════════════════════════════════════
   Malinguo AI – Shared Styles
   Design: Duolingo-inspired green, rounded, friendly
   ══════════════════════════════════════════════ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --g:#58CC02;--gd:#46A302;--gl:#89E219;
  --gold:#FF9600;--goldd:#E68600;
  --red:#FF4B4B;--blue:#1CB0F6;--purple:#CE82FF;
  --cream:#FFF9E6;--bg:#FAFAFA;
  --text:#2B2B2B;--text2:#6B7280;--text3:#9CA3AF;
  --border:rgba(0,0,0,.06);
  --shadow:0 2px 8px rgba(0,0,0,.06);
  --shadow-lg:0 8px 30px rgba(0,0,0,.1);
  --radius:16px;
  --max-w:1140px;
}
html{scroll-behavior:smooth}
body{
  font-family:'Nunito',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ══ NAV ══ */
nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:2px solid var(--border)}
.nav-inner{max-width:var(--max-w);margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 24px}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav-logo-icon{width:42px;height:42px;border-radius:12px;background:var(--g);display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 3px 0 var(--gd);color:#fff;font-weight:900}
.nav-logo-text{font-size:18px;font-weight:900;color:var(--text);letter-spacing:-.5px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a,.nav-dd-trigger{padding:8px 14px;border-radius:12px;font-size:14px;font-weight:700;color:var(--text2);text-decoration:none;transition:all .15s;cursor:pointer;background:none;border:none;font-family:inherit;display:inline-flex;align-items:center;gap:4px}
.nav-links a:hover,.nav-dd-trigger:hover{background:var(--cream);color:var(--text)}
.nav-cta{padding:10px 22px!important;border-radius:12px!important;background:var(--g)!important;color:#fff!important;box-shadow:0 3px 0 var(--gd);font-weight:800!important}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 0 var(--gd)!important}
.nav-cta:active{transform:translateY(2px)!important;box-shadow:0 1px 0 var(--gd)!important}
/* dropdown */
.nav-dd{position:relative;display:inline-block}
.nav-dd-menu{display:none;position:absolute;top:calc(100% + 4px);left:0;min-width:220px;background:#fff;border-radius:14px;border:2px solid var(--border);box-shadow:var(--shadow-lg);padding:8px;z-index:110;animation:pop .2s ease}
.nav-dd:hover .nav-dd-menu{display:block}
.nav-dd-menu a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:13px;font-weight:600;color:var(--text)}
.nav-dd-menu a:hover{background:var(--cream)}
.nav-dd-menu .dd-icon{font-size:18px;width:28px;text-align:center}
.hamburger{display:none;background:none;border:none;font-size:24px;cursor:pointer;padding:8px}
.lang-switch{padding:6px 12px;border-radius:10px;border:2px solid var(--border);background:#fff;font-size:12px;font-weight:700;cursor:pointer;transition:all .15s;font-family:inherit;color:var(--text2)}
.lang-switch:hover{border-color:var(--g);color:var(--text)}

/* ══ SECTIONS ══ */
section{padding:80px 24px}
.section-inner{max-width:var(--max-w);margin:0 auto}
.section-title{font-size:clamp(28px,3.5vw,40px);font-weight:900;text-align:center;margin-bottom:12px;letter-spacing:-.5px}
.section-sub{font-size:17px;color:var(--text2);text-align:center;max-width:560px;margin:0 auto 48px;font-weight:600}

/* ══ BUTTONS ══ */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:14px;font-size:16px;font-weight:800;text-decoration:none;transition:all .15s;border:none;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--g);color:#fff;box-shadow:0 4px 0 var(--gd)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--gd)}
.btn-primary:active{transform:translateY(2px);box-shadow:0 1px 0 var(--gd)}
.btn-secondary{background:#fff;color:var(--text);border:2px solid var(--border);box-shadow:var(--shadow)}
.btn-secondary:hover{border-color:var(--g);background:var(--cream)}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:12px}
.btn-gold{background:var(--gold);color:#fff;box-shadow:0 4px 0 var(--goldd)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--goldd)}

/* ══ CARDS ══ */
.card{background:#fff;border-radius:var(--radius);border:2px solid var(--border);padding:32px;box-shadow:var(--shadow);transition:all .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(88,204,2,.15)}
.card-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:18px}
.card-icon-green{background:#dcfce7}.card-icon-blue{background:#dbeafe}.card-icon-amber{background:#fef3c7}.card-icon-purple{background:#f3e8ff}.card-icon-red{background:#fee2e2}
.card h3{font-size:20px;font-weight:800;margin-bottom:8px}
.card p{font-size:15px;color:var(--text2);line-height:1.7;margin-bottom:16px}
.card-link{font-size:14px;font-weight:700;color:var(--g);text-decoration:none;display:inline-flex;align-items:center;gap:4px}
.card-link:hover{text-decoration:underline}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}

/* ══ TAGS ══ */
.tag{display:inline-block;padding:4px 12px;border-radius:8px;font-size:12px;font-weight:700}
.tag-green{background:#dcfce7;color:#16a34a}.tag-amber{background:#fef3c7;color:#d97706}.tag-red{background:#fee2e2;color:#dc2626}.tag-blue{background:#dbeafe;color:#2563eb}.tag-purple{background:#f3e8ff;color:#9333ea}

/* ══ HERO (generic) ══ */
.hero{position:relative;overflow:hidden;padding:80px 24px 100px;text-align:center}
.hero-green{background:linear-gradient(170deg,#f0fdf4 0%,#ecfdf5 40%,#fff 100%)}
.hero::before{content:'🀄';position:absolute;top:20%;left:8%;font-size:120px;opacity:.04;animation:float 6s ease-in-out infinite}
.hero::after{content:'🀄';position:absolute;bottom:10%;right:8%;font-size:90px;opacity:.03;animation:float 8s ease-in-out infinite reverse}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:20px;background:#fff;border:2px solid var(--border);font-size:13px;font-weight:700;color:var(--g);margin-bottom:24px;box-shadow:var(--shadow)}
.hero h1{font-size:clamp(36px,5vw,56px);font-weight:900;color:var(--text);line-height:1.15;max-width:700px;margin:0 auto 16px;letter-spacing:-1px}
.hero h1 span{background:linear-gradient(135deg,var(--g),var(--gl));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p.hero-desc{font-size:clamp(16px,2vw,20px);color:var(--text2);max-width:560px;margin:0 auto 36px;font-weight:600}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ══ FOOTER ══ */
footer{background:#1a1a2e;color:#9CA3AF;padding:48px 24px 32px;text-align:center}
.footer-inner{max-width:var(--max-w);margin:0 auto}
.footer-logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:20px}
.footer-logo-icon{width:36px;height:36px;border-radius:10px;background:var(--g);display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;font-weight:900}
.footer-logo-text{font-size:16px;font-weight:800;color:#fff}
.footer-links{display:flex;justify-content:center;gap:24px;margin-bottom:20px;flex-wrap:wrap}
.footer-links a{color:#9CA3AF;text-decoration:none;font-size:14px;font-weight:600;transition:color .15s}
.footer-links a:hover{color:#fff}
.footer-social{display:flex;justify-content:center;gap:16px;margin-bottom:24px}
.footer-social a{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#9CA3AF;text-decoration:none;font-size:16px;transition:all .15s}
.footer-social a:hover{background:var(--g);color:#fff}
.footer-copy{font-size:13px;color:#6B7280}

/* ══ FORM ══ */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--text)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border-radius:12px;border:2px solid var(--border);font-size:14px;font-family:inherit;outline:none;transition:all .15s;background:#fff}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--g);box-shadow:0 0 0 3px rgba(88,204,2,.1)}
.form-group textarea{resize:vertical;min-height:80px}
.form-submit{width:100%;padding:14px;border-radius:14px;border:none;background:var(--g);color:#fff;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 4px 0 var(--gd);transition:all .15s;font-family:inherit}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--gd)}
.form-submit:active{transform:translateY(2px);box-shadow:0 1px 0 var(--gd)}

/* ══ FAQ ══ */
.faq-list{max-width:700px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);border:2px solid var(--border);margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;cursor:pointer;font-size:15px;font-weight:700;background:none;border:none;width:100%;text-align:left;font-family:inherit;color:var(--text);transition:background .15s}
.faq-q:hover{background:#fafafa}
.faq-q .arrow{transition:transform .2s;font-size:12px;color:var(--text3)}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:500px}
.faq-a-inner{padding:0 24px 18px;font-size:14px;color:var(--text2);line-height:1.8}

/* ══ STATS ══ */
.stats-row{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;margin:40px 0}
.stat{text-align:center}
.stat-num{font-size:clamp(32px,4vw,48px);font-weight:900;color:var(--g);line-height:1}
.stat-label{font-size:14px;color:var(--text2);font-weight:600;margin-top:4px}

/* ══ BREADCRUMB ══ */
.breadcrumb{max-width:var(--max-w);margin:0 auto;padding:16px 24px;font-size:13px;color:var(--text3)}
.breadcrumb a{color:var(--text2);font-weight:600}.breadcrumb a:hover{color:var(--g)}
.breadcrumb span{margin:0 8px;color:var(--text3)}

/* ══ PAGE HERO (smaller) ══ */
.page-hero{padding:50px 24px 40px;text-align:center;background:linear-gradient(170deg,#f0fdf4 0%,#fff 100%)}
.page-hero h1{font-size:clamp(28px,4vw,44px);font-weight:900;margin-bottom:12px;letter-spacing:-.5px}
.page-hero p{font-size:17px;color:var(--text2);max-width:520px;margin:0 auto;font-weight:600}

/* ══ BLOG ══ */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.blog-card{background:#fff;border-radius:var(--radius);border:2px solid var(--border);overflow:hidden;box-shadow:var(--shadow);transition:all .2s}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.blog-thumb{height:180px;background:linear-gradient(135deg,#dcfce7,#dbeafe);display:flex;align-items:center;justify-content:center;font-size:48px}
.blog-body{padding:24px}
.blog-body h3{font-size:18px;font-weight:800;margin-bottom:8px;line-height:1.4}
.blog-body p{font-size:14px;color:var(--text2);line-height:1.6;margin-bottom:12px}
.blog-meta{font-size:12px;color:var(--text3);font-weight:600}
.blog-article{max-width:720px;margin:0 auto;padding:40px 24px 80px}
.blog-article h1{font-size:clamp(28px,4vw,36px);font-weight:900;margin-bottom:12px;line-height:1.3}
.blog-article .meta{font-size:14px;color:var(--text3);margin-bottom:32px;font-weight:600}
.blog-article h2{font-size:22px;font-weight:800;margin:32px 0 12px}
.blog-article p{font-size:16px;line-height:1.8;color:var(--text);margin-bottom:16px}
.blog-article ul,.blog-article ol{margin:0 0 16px 24px;font-size:16px;line-height:1.8;color:var(--text)}
.blog-article blockquote{border-left:4px solid var(--g);padding:12px 20px;background:#f0fdf4;border-radius:0 12px 12px 0;margin:16px 0;font-style:italic;color:var(--text2)}

/* ══ TILE PICKER ══ */
.tile-picker{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}
.tile-row{display:flex;gap:4px;flex-wrap:wrap;justify-content:center}
.tile-btn{width:40px;height:52px;border-radius:8px;border:2px solid var(--border);background:#fff;cursor:pointer;font-size:11px;font-weight:800;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;transition:all .12s;font-family:inherit;color:var(--text);line-height:1}
.tile-btn:hover{border-color:var(--g);background:#f0fdf4;transform:translateY(-2px)}
.tile-btn:active{transform:translateY(1px)}
.tile-btn.selected{border-color:var(--g);background:var(--cream);box-shadow:0 2px 0 var(--gd)}
.tile-btn .t-suit{font-size:16px}
.tile-btn .t-num{font-size:10px;color:var(--text2)}
.selected-tiles{display:flex;gap:4px;flex-wrap:wrap;min-height:40px;padding:10px;border-radius:12px;border:2px dashed var(--border);background:#fafafa;align-items:center}
.selected-tile{padding:4px 10px;border-radius:8px;background:var(--g);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;gap:4px;cursor:pointer}
.selected-tile:hover{background:var(--red)}
.selected-tiles .placeholder{font-size:13px;color:var(--text3);font-weight:600}

/* ══ PROGRESS BAR ══ */
.progress-bar{height:8px;border-radius:4px;background:#e5e7eb;overflow:hidden;margin:6px 0}
.progress-fill{height:100%;border-radius:4px;background:var(--g);transition:width .5s ease}

/* ══ ANIMATIONS ══ */
@keyframes float{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-20px) rotate(5deg)}}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideDown{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}
@keyframes pop{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
@keyframes glow{0%,100%{box-shadow:0 0 4px rgba(88,204,2,.3)}50%{box-shadow:0 0 16px rgba(88,204,2,.5)}}
@keyframes confettiFall{0%{transform:translateY(-10px) rotate(0deg);opacity:1}100%{transform:translateY(100vh) rotate(720deg);opacity:0}}

/* ══ SCROLL REVEAL (JS adds .visible) ══ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .5s ease,transform .5s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.1s}.reveal-delay-2{transition-delay:.2s}.reveal-delay-3{transition-delay:.3s}

/* ══ INTERACTIVE FEEDBACK ══ */
.btn:active{transform:translateY(2px)!important;transition:transform .05s}
.card{transition:all .25s cubic-bezier(.4,0,.2,1)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(88,204,2,.15)}
.card:active{transform:translateY(-1px);transition:transform .05s}

/* ══ TOAST ══ */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:12px 24px;border-radius:14px;background:#2B2B2B;color:#fff;font-size:14px;font-weight:700;z-index:10000;animation:slideUp .3s ease;box-shadow:0 8px 30px rgba(0,0,0,.2);max-width:90vw;text-align:center}

/* ══ RESPONSIVE ══ */
@media(max-width:768px){
  .nav-links{display:none}
  .hamburger{display:block}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:2px solid var(--border);padding:16px;box-shadow:var(--shadow-lg);z-index:99;animation:slideDown .2s ease}
  .nav-dd-menu{position:static;box-shadow:none;border:none;padding:0 0 0 16px}
  .nav-dd:hover .nav-dd-menu{display:block}
  .hero{padding:50px 20px 60px}
  .hero h1{font-size:clamp(28px,7vw,40px)}
  section{padding:48px 16px}
  .section-title{font-size:clamp(24px,5vw,32px)}
  .stats-row{gap:20px}
  .tile-btn{width:34px;height:44px;font-size:10px}
  .cards-grid{grid-template-columns:1fr}
  .card{padding:24px}
  .btn{padding:12px 24px;font-size:15px}
  .btn-sm{padding:10px 18px;font-size:13px}
  footer{padding:36px 16px 24px}
  .footer-links{gap:16px}
  .breadcrumb{padding:12px 16px}
}
@media(max-width:480px){
  .nav-inner{padding:10px 16px}
  .nav-logo-icon{width:36px;height:36px;font-size:18px;border-radius:10px}
  .nav-logo-text{font-size:16px}
  .hero{padding:36px 16px 48px}
  section{padding:36px 12px}
  .card{padding:20px;border-radius:14px}
  .cards-grid{gap:16px}
}
/* ══ TOUCH DEVICE TWEAKS ══ */
@media(hover:none){
  .card:hover{transform:none;box-shadow:var(--shadow)}
  .btn-primary:hover{transform:none;box-shadow:0 4px 0 var(--gd)}
  .btn-secondary:hover{border-color:var(--border);background:#fff}
}
/* ══ SAFE AREA (notch devices) ══ */
@supports(padding:max(0px)){
  .nav-inner{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
  footer{padding-bottom:max(32px,env(safe-area-inset-bottom))}
}