/* =====================================================================
   OFFERTRADE — DESIGN SYSTEM v3.0  (2026)
   Modern 3D marketplace — consistent across all pages
   ===================================================================== */

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:#f0f2f7;color:#0f172a;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{cursor:pointer;font-family:inherit;border:none;background:none}
input,select,textarea{font-family:inherit}

/* ── TOKENS ── */
:root{
  --primary:#ff4500;
  --primary-dark:#d63800;
  --primary-light:#ff7a00;
  --primary-glow:rgba(255,69,0,.3);
  --primary-bg:rgba(255,69,0,.07);
  --accent:#2563eb;
  --success:#10b981;
  --warning:#f59e0b;
  --danger:#ef4444;

  --gray-50:#f8fafc;
  --gray-100:#f1f5f9;
  --gray-200:#e2e8f0;
  --gray-300:#cbd5e1;
  --gray-400:#94a3b8;
  --gray-500:#64748b;
  --gray-600:#475569;
  --gray-700:#334155;
  --gray-800:#1e293b;
  --gray-900:#0f172a;

  --bg:#f0f2f7;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --border:#e2e8f0;
  --border-focus:var(--primary);

  --text:#0f172a;
  --text-2:#334155;
  --text-muted:#64748b;
  --text-light:#94a3b8;

  --shadow-xs:0 1px 2px rgba(0,0,0,.05);
  --shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --shadow:0 4px 16px rgba(0,0,0,.08);
  --shadow-md:0 8px 30px rgba(0,0,0,.1);
  --shadow-lg:0 16px 48px rgba(0,0,0,.12);
  --shadow-xl:0 24px 64px rgba(0,0,0,.16);
  --shadow-3d:0 20px 60px -10px rgba(255,69,0,.2),0 8px 24px rgba(0,0,0,.1);

  --radius-xs:4px;
  --radius-sm:8px;
  --radius:12px;
  --radius-md:16px;
  --radius-lg:20px;
  --radius-xl:28px;
  --radius-full:9999px;

  --ease:cubic-bezier(.4,0,.2,1);
  --ease-out:cubic-bezier(0,0,.2,1);
  --duration:200ms;
  --duration-slow:350ms;

  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;
  --space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;
  --container:1280px;
}

/* dark mode */
[data-theme="dark"]{
  --bg:#0f172a;
  --surface:#1e293b;
  --surface-2:#162032;
  --border:#334155;
  --text:#f1f5f9;
  --text-2:#cbd5e1;
  --text-muted:#64748b;
  --text-light:#475569;
  --gray-100:#1e293b;
  --gray-200:#334155;
}

/* ── LAYOUT ── */
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:48px 0 16px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:24px}
.section-title{font-size:22px;font-weight:800;color:var(--text)}
.section-link{font-size:13px;font-weight:600;color:var(--primary)}
.section-link:hover{text-decoration:underline}

/* ── HEADER ── */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.6);
  box-shadow:0 1px 20px rgba(0,0,0,.06);
  height:62px;
}
[data-theme="dark"] .header{background:rgba(15,23,42,.9);border-bottom-color:rgba(255,255,255,.06)}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 20px;
  height:100%;display:flex;align-items:center;gap:16px;
}
.logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:900;color:var(--text);flex-shrink:0}
.logo-mark{
  width:36px;height:36px;
  background:linear-gradient(135deg,#ff4500,#ff7a00);
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:0 4px 12px rgba(255,69,0,.4);
}
.logo-text strong{color:var(--primary)}
.header-search{
  flex:1;max-width:540px;margin:0 auto;
  display:flex;align-items:center;
  background:var(--gray-100);border:1.5px solid transparent;
  border-radius:var(--radius);overflow:hidden;transition:all .2s;
}
.header-search:focus-within{background:var(--surface);border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.search-icon{padding:0 10px;color:var(--text-muted);font-size:15px;flex-shrink:0}
.search-input{
  flex:1;padding:10px 0;border:none;background:none;
  font-size:14px;color:var(--text);outline:none;
}
.search-input::placeholder{color:var(--text-muted)}
.search-divider{width:1px;height:20px;background:var(--border);margin:0 4px}
.search-location{padding:10px 10px;font-size:13px;color:var(--text-muted);background:none;border:none;white-space:nowrap}
.search-btn{
  padding:8px 16px;background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:13px;font-weight:700;border-radius:8px;margin:4px;
  transition:all .2s;white-space:nowrap;
}
.search-btn:hover{transform:scale(1.02);box-shadow:0 4px 12px var(--primary-glow)}
.header-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.btn-icon{
  width:36px;height:36px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);background:var(--gray-100);
  transition:all .15s;
}
.btn-icon:hover{background:var(--gray-200);color:var(--text)}
.btn-login{
  padding:8px 16px;border-radius:var(--radius);font-size:13px;font-weight:600;
  color:var(--text-muted);transition:all .15s;
}
.btn-login:hover{background:var(--gray-100);color:var(--text)}
.btn-publish{
  padding:9px 18px;border-radius:var(--radius);font-size:13px;font-weight:700;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;box-shadow:0 4px 14px var(--primary-glow);transition:all .2s;
}
.btn-publish:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,69,0,.45)}
.btn-register{
  padding:8px 16px;border-radius:var(--radius);font-size:13px;font-weight:700;
  color:var(--primary);border:1.5px solid var(--primary);background:transparent;
  transition:all .15s;white-space:nowrap;
}
.btn-register:hover{background:var(--primary);color:#fff}
.header-nav{border-bottom:1px solid var(--border);background:var(--surface)}
.nav-inner{max-width:var(--container);margin:0 auto;padding:0 20px;display:flex;gap:4px;overflow-x:auto}
.nav-link{
  display:flex;align-items:center;gap:6px;padding:10px 14px;
  font-size:13px;font-weight:500;color:var(--text-muted);
  white-space:nowrap;border-bottom:2px solid transparent;transition:all .15s;
}
.nav-link:hover,.nav-link.active{color:var(--primary);border-bottom-color:var(--primary)}
.nav-icon{font-size:14px}

/* ── HERO (for pages that define it) ── */
.hero{
  background:linear-gradient(150deg,#0f172a 0%,#1e293b 40%,#0f2447 100%);
  padding:64px 20px 72px;text-align:center;position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(255,69,0,.15) 0%,transparent 70%),
             radial-gradient(ellipse 60% 40% at 80% 100%,rgba(37,99,235,.12) 0%,transparent 60%);
}
.hero-inner{position:relative;max-width:720px;margin:0 auto}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.08);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.8);
  font-size:12px;font-weight:600;padding:6px 14px;border-radius:50px;
  margin-bottom:24px;letter-spacing:.04em;text-transform:uppercase;
}
.hero h1,.hero-title{
  font-size:clamp(28px,5vw,54px);font-weight:900;line-height:1.1;
  color:#fff;margin-bottom:16px;letter-spacing:-.02em;
}
.hero-sub{font-size:16px;color:rgba(255,255,255,.55);margin-bottom:36px;line-height:1.6}
.hero-search{
  display:flex;align-items:stretch;gap:0;
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:6px;
  box-shadow:0 24px 64px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.1);
  margin-bottom:24px;max-width:660px;margin-left:auto;margin-right:auto;
}
.hero-search-input{
  flex:1;padding:16px 20px;background:none;border:none;outline:none;
  color:#fff;font-size:16px;font-weight:500;min-width:0;
}
.hero-search-input::placeholder{color:rgba(255,255,255,.35)}
.hero-search-btn{
  padding:14px 28px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:15px;font-weight:800;
  box-shadow:0 4px 20px rgba(255,69,0,.5),inset 0 1px 0 rgba(255,255,255,.2);
  transition:all .2s;white-space:nowrap;border:none;cursor:pointer;
}
.hero-search-btn:hover{transform:scale(1.03);box-shadow:0 8px 30px rgba(255,69,0,.6)}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.hero-tag{
  padding:6px 14px;border-radius:50px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.65);font-size:13px;cursor:pointer;transition:all .15s;
}
.hero-tag:hover{background:rgba(255,69,0,.2);border-color:rgba(255,69,0,.4);color:#fff}
.hero-stats{display:flex;justify-content:center;gap:32px;margin-top:28px}
.hero-stat{text-align:center}
.hero-stat-num{font-size:22px;font-weight:900;color:#fff}
.hero-stat-label{font-size:12px;color:rgba(255,255,255,.45)}

/* ── TRUST BAR ── */
.trust-bar{background:var(--surface);border-bottom:1px solid var(--border);padding:13px 20px}
.trust-items{max-width:var(--container);margin:0 auto;display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--text-muted)}
.trust-item::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--primary);flex-shrink:0}

/* ── CATEGORIES ── */
.categories-section{padding:48px 0 16px}
.categories-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:10px}
.cat-card{
  display:flex;flex-direction:column;align-items:center;gap:8px;
  padding:18px 8px;border-radius:var(--radius-lg);
  background:var(--surface);border:1.5px solid transparent;
  transition:all .2s;cursor:pointer;text-align:center;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3d);border-color:transparent}
.cat-card:hover .cat-icon-wrap{transform:scale(1.12) rotate(-4deg)}
.cat-icon-wrap{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:26px;
  transition:transform .25s;box-shadow:0 6px 20px -4px rgba(0,0,0,.2);
}
.cat-name{font-size:12px;font-weight:700;color:var(--text)}
.cat-count{font-size:11px;color:var(--text-muted)}
.cat-motor .cat-icon-wrap{background:linear-gradient(135deg,#f97316,#ea580c)}
.cat-inmobiliaria .cat-icon-wrap{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}
.cat-electronica .cat-icon-wrap{background:linear-gradient(135deg,#2563eb,#1d4ed8)}
.cat-trabajo .cat-icon-wrap{background:linear-gradient(135deg,#0ea5e9,#0284c7)}
.cat-moda .cat-icon-wrap{background:linear-gradient(135deg,#ec4899,#be185d)}
.cat-hogar .cat-icon-wrap{background:linear-gradient(135deg,#10b981,#059669)}
.cat-deporte .cat-icon-wrap{background:linear-gradient(135deg,#f59e0b,#d97706)}
.cat-bebe .cat-icon-wrap{background:linear-gradient(135deg,#a78bfa,#7c3aed)}
.cat-otros .cat-icon-wrap{background:linear-gradient(135deg,#94a3b8,#64748b)}

/* ── AD CARDS (grid) ── */
.ads-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ad-card{
  background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--border);transition:all .25s;cursor:pointer;
  display:block;position:relative;
}
.ad-card:hover{
  transform:translateY(-6px) scale(1.01);
  box-shadow:0 24px 50px -10px rgba(0,0,0,.12),0 0 0 1px rgba(255,69,0,.15);
  border-color:rgba(255,69,0,.2);
}
.ad-card-img{
  height:160px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--gray-100),var(--gray-200));
}
.ad-card-img>div:first-child{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  font-size:72px;transition:transform .3s;
}
.ad-card:hover .ad-card-img>div:first-child{transform:scale(1.06)}
.ad-title{font-size:13px;font-weight:600;color:var(--text);line-height:1.4;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ad-price{font-size:17px;font-weight:900;color:var(--primary);margin-bottom:6px}
.price-old{font-size:13px;color:var(--text-muted);text-decoration:line-through;margin-left:4px;font-weight:400}
.ad-card-body{padding:12px 14px}
.ad-meta{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--text-muted)}
.ad-location{display:flex;align-items:center;gap:3px}
.ad-seller-info{display:flex;align-items:center;gap:6px;margin-top:8px;padding-top:8px;border-top:1px solid var(--border)}
.seller-avatar{
  width:22px;height:22px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:9px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.seller-name{font-size:12px;font-weight:600;color:var(--text-muted)}
.seller-verified{color:var(--accent);font-size:11px;margin-left:auto}
.ad-badge{
  position:absolute;top:8px;left:8px;
  padding:3px 9px;border-radius:50px;font-size:11px;font-weight:700;
}
.badge-featured{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}
.badge-urgent{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}
.badge-new{background:linear-gradient(135deg,#10b981,#059669);color:#fff}
.badge-top{background:linear-gradient(135deg,#8b5cf6,#6d28d9);color:#fff}
.btn-fav{
  position:absolute;top:8px;right:8px;
  width:30px;height:30px;border-radius:50%;
  background:rgba(255,255,255,.9);backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;box-shadow:0 2px 8px rgba(0,0,0,.1);
  transition:all .15s;border:none;cursor:pointer;
}
.btn-fav:hover,.btn-fav.active{transform:scale(1.15);background:#fff}

/* ── AD ROWS (list view) ── */
.ads-list{display:flex;flex-direction:column;gap:10px}
.ad-row{
  display:grid;grid-template-columns:100px 1fr auto;gap:14px;align-items:center;
  background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);
  padding:12px 16px;transition:all .2s;cursor:pointer;
}
.ad-row:hover{box-shadow:var(--shadow-md);border-color:rgba(255,69,0,.2);transform:translateX(4px)}
.ad-row-img{
  width:90px;height:70px;border-radius:10px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;font-size:36px;
  background:linear-gradient(135deg,var(--gray-100),var(--gray-200));
  flex-shrink:0;
}
.ad-row-body{display:flex;flex-direction:column;gap:3px;min-width:0}

/* ── STATS SECTION ── */
.stats-section{
  background:linear-gradient(135deg,#0f172a,#1e293b);
  padding:52px 20px;
}
.stats-grid{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-item{text-align:center;padding:20px;border-right:1px solid rgba(255,255,255,.08)}
.stat-item:last-child{border-right:none}
.stat-number{
  font-size:clamp(28px,4vw,42px);font-weight:900;
  background:linear-gradient(90deg,#ff6b35,#ff4500);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  display:block;line-height:1;margin-bottom:6px;
}
.stat-label{font-size:13px;color:rgba(255,255,255,.45);font-weight:500}
.stat-icon{display:none}

/* ── HOW IT WORKS ── */
.how-section{padding:48px 0 16px}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--surface);border-radius:var(--radius-lg);padding:28px 20px;
  border:1px solid var(--border);text-align:center;
  transition:all .2s;position:relative;overflow:hidden;
}
.step::after{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-light));
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step:hover::after{transform:scaleX(1)}
.step-num{
  width:44px;height:44px;border-radius:12px;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:900;color:#fff;
  box-shadow:0 6px 20px var(--primary-glow);
}
.step-icon{font-size:22px;margin-bottom:10px}
.step h3,.step-title{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--text)}
.step p,.step-desc{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ── PROMO SECTION ── */
.promo-section{
  border-radius:24px;margin:32px 0;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 50%,#ffb300 100%);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  position:relative;overflow:hidden;
  box-shadow:0 20px 60px var(--primary-glow);
}
.promo-section::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 80% 50%,rgba(255,255,255,.15) 0%,transparent 60%);
}
.promo-layout{display:flex;align-items:center;justify-content:space-between;width:100%;gap:40px;position:relative}
.promo-eyebrow{font-size:12px;font-weight:700;color:rgba(255,255,255,.75);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.promo-title{font-size:28px;font-weight:900;color:#fff;margin-bottom:10px;line-height:1.2}
.promo-desc{font-size:15px;color:rgba(255,255,255,.8)}
.promo-feats{display:flex;flex-direction:column;gap:6px;margin-top:12px}
.promo-feat{font-size:13px;color:rgba(255,255,255,.75);display:flex;align-items:center;gap:6px}
.promo-actions{display:flex;flex-direction:column;gap:10px;flex-shrink:0}
.btn-promo-primary{
  display:block;padding:16px 32px;background:#fff;
  color:var(--primary);font-size:15px;font-weight:800;border-radius:14px;
  box-shadow:0 8px 30px rgba(0,0,0,.2);transition:all .2s;white-space:nowrap;text-align:center;
}
.btn-promo-primary:hover{transform:scale(1.04);box-shadow:0 12px 40px rgba(0,0,0,.25)}
.btn-promo-secondary{
  display:block;padding:12px 24px;
  border:2px solid rgba(255,255,255,.4);color:#fff;
  font-size:14px;font-weight:600;border-radius:12px;
  transition:all .2s;text-align:center;
}
.btn-promo-secondary:hover{background:rgba(255,255,255,.15)}
.promo-visual{position:relative}
.promo-card{
  background:rgba(255,255,255,.12);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-md);
  padding:20px;min-width:200px;
}
.promo-card-icon{font-size:32px;margin-bottom:8px}
.promo-card-text{color:#fff;font-size:13px;line-height:1.5}

/* ── POPULAR TAGS ── */
.popular-section{padding:48px 0 16px}
.popular-tags,.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  padding:8px 16px;border-radius:50px;
  background:var(--surface);border:1px solid var(--border);
  font-size:13px;font-weight:500;color:var(--text-muted);
  transition:all .15s;cursor:pointer;
}
.tag:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:scale(1.04)}
.tag-icon{margin-right:4px}

/* ── APP SECTION ── */
.app-section{
  background:linear-gradient(135deg,#0f172a,#1e293b);
  border-radius:24px;margin:32px 0;padding:48px;
}
.app-layout{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.app-title{font-size:28px;font-weight:900;color:#fff;margin-bottom:10px}
.app-desc{font-size:15px;color:rgba(255,255,255,.6);margin-bottom:20px;line-height:1.6}
.app-feats{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}
.app-feat{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
.app-feat-icon{font-size:16px}
.app-btns{display:flex;gap:12px;flex-wrap:wrap}
.app-btn{
  display:flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:12px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);
  transition:all .2s;
}
.app-btn:hover{background:rgba(255,255,255,.18)}
.app-btn-label{font-size:10px;color:rgba(255,255,255,.5);text-transform:uppercase;letter-spacing:.06em}
.app-btn-store{font-size:14px;font-weight:700;color:#fff}
.app-visual{text-align:center}
.app-phone{
  width:160px;height:280px;border-radius:24px;
  background:rgba(255,255,255,.06);border:2px solid rgba(255,255,255,.1);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 24px 60px rgba(0,0,0,.4);
}
.app-phone-screen{font-size:60px}
.app-phone-logo{font-size:13px;font-weight:800;color:#fff}
.app-phone-text{font-size:11px;color:rgba(255,255,255,.4)}

/* ── TESTIMONIALS ── */
.testimonials-section{padding:48px 0 16px}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.testimonial-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:24px;
  transition:all .2s;
}
.testimonial-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.testimonial-stars{font-size:14px;margin-bottom:10px}
.testimonial-text{font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:16px;font-style:italic}
.testimonial-author{display:flex;align-items:center;gap:10px;padding-top:14px;border-top:1px solid var(--border)}
.testimonial-avatar{
  width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.testimonial-name{font-size:14px;font-weight:700;color:var(--text)}
.testimonial-role{font-size:12px;color:var(--text-muted)}

/* ── SKELETON ── */
@keyframes shimmer{from{background-position:-600px 0}to{background-position:600px 0}}
.skeleton{
  background:linear-gradient(90deg,var(--gray-100) 25%,var(--gray-200) 50%,var(--gray-100) 75%);
  background-size:1200px 100%;animation:shimmer 1.5s infinite;border-radius:6px;
}
.skeleton-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}
.skeleton-img{height:160px}
.skeleton-body{padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.skeleton-line{height:12px;border-radius:4px}
.w-full{width:100%}.w-3-4{width:75%}.w-1-2{width:50%}.w-1-3{width:33%}
.h-sm{height:10px}.h-lg{height:18px}

/* ── BUTTONS ── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 20px;border-radius:var(--radius);font-size:14px;font-weight:600;
  transition:all .2s;cursor:pointer;border:none;
}
.btn-sm{padding:7px 14px;font-size:12px;border-radius:var(--radius-sm)}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 4px 14px var(--primary-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--primary-glow)}
.btn-secondary{background:var(--gray-100);color:var(--text-2)}
.btn-secondary:hover{background:var(--gray-200)}
.btn-ghost{background:transparent;color:var(--text-muted)}
.btn-ghost:hover{background:var(--gray-100);color:var(--text)}
.btn-outline-primary{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}
.btn-outline-primary:hover{background:var(--primary);color:#fff}

/* ── FORMS ── */
.input-group{display:flex;flex-direction:column;gap:5px}
.input-label{font-size:13px;font-weight:600;color:var(--text-2)}
.input-field{
  padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius);
  font-size:14px;color:var(--text);background:var(--surface);
  transition:all .2s;outline:none;width:100%;
}
.input-field:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.input-field::placeholder{color:var(--text-muted)}
.input-hint{font-size:12px;color:var(--text-muted)}
.input-error{font-size:12px;color:var(--danger)}
.input-field.error{border-color:var(--danger)}

/* ── AUTH ── */
.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-left{
  background:linear-gradient(150deg,#0f172a,#1e293b,#0f2447);
  display:flex;flex-direction:column;justify-content:center;padding:48px;
  position:relative;overflow:hidden;
}
.auth-left::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 60% at 30% 40%,rgba(255,69,0,.12) 0%,transparent 70%);
}
.auth-right{display:flex;align-items:center;justify-content:center;padding:40px;background:var(--bg)}
.auth-box{background:var(--surface);border-radius:var(--radius-xl);padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow-lg)}
.auth-title{font-size:26px;font-weight:900;color:var(--text);margin-bottom:4px}
.auth-sub{font-size:14px;color:var(--text-muted);margin-bottom:28px}
.auth-tabs{display:flex;background:var(--gray-100);border-radius:var(--radius);padding:4px;margin-bottom:24px;gap:4px}
.auth-tab{
  flex:1;padding:8px;text-align:center;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;color:var(--text-muted);
  transition:all .2s;cursor:pointer;border:none;background:none;
}
.auth-tab.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm)}
.social-btns{display:flex;gap:10px;margin-bottom:20px}
.social-btn{
  flex:1;padding:10px;border:1.5px solid var(--border);border-radius:var(--radius);
  font-size:13px;font-weight:600;color:var(--text);background:var(--surface);
  transition:all .15s;display:flex;align-items:center;justify-content:center;gap:6px;
}
.social-btn:hover{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.divider{display:flex;align-items:center;gap:12px;margin:16px 0;color:var(--text-muted);font-size:12px}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}
.auth-form{display:flex;flex-direction:column;gap:14px}
.auth-footer{font-size:13px;color:var(--text-muted);text-align:center;margin-top:20px}
.auth-footer a{color:var(--primary);font-weight:600}

/* ── CATEGORY PAGE ── */
.page-layout{display:grid;grid-template-columns:240px 1fr;gap:24px;padding:32px 0 64px}
.sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;height:fit-content;position:sticky;top:80px}
.sidebar-header{font-size:15px;font-weight:700;color:var(--text);padding-bottom:14px;border-bottom:1px solid var(--border);margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.filter-group{margin-bottom:20px}
.filter-label{font-size:12px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}
.filter-options{display:flex;flex-direction:column;gap:6px}
.filter-option{
  display:flex;align-items:center;justify-content:space-between;
  padding:6px 0;cursor:pointer;
}
.filter-option label{font-size:13px;color:var(--text-2);cursor:pointer;display:flex;align-items:center;gap:7px}
.filter-option input[type="radio"],
.filter-option input[type="checkbox"]{accent-color:var(--primary);width:14px;height:14px}
.filter-count{font-size:11px;color:var(--text-muted);background:var(--gray-100);padding:1px 6px;border-radius:50px}
.price-range{display:flex;gap:8px;align-items:center}
.price-range input{width:80px}
.results-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.results-count{font-size:14px;color:var(--text-muted)}
.results-count strong{color:var(--text)}
.results-controls{display:flex;align-items:center;gap:10px}
.sort-select{
  padding:7px 12px;border:1.5px solid var(--border);border-radius:var(--radius-sm);
  font-size:13px;color:var(--text);background:var(--surface);outline:none;
}
.sort-select:focus{border-color:var(--primary)}
.view-btns{display:flex;gap:4px}
.view-btn{
  width:32px;height:32px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  color:var(--text-muted);background:var(--gray-100);transition:all .15s;
}
.view-btn.active,.view-btn:hover{background:var(--primary);color:#fff}

/* ── AD DETAIL PAGE ── */
.ad-page-layout{display:grid;grid-template-columns:1fr 360px;gap:28px;padding:32px 0 64px}
.gallery{border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);border:1px solid var(--border)}
.gallery-main{
  height:380px;display:flex;align-items:center;justify-content:center;
  font-size:100px;background:linear-gradient(135deg,var(--gray-100),var(--gray-200));
  cursor:zoom-in;
}
.gallery-thumbs{display:flex;gap:8px;padding:12px}
.gallery-thumb{
  width:70px;height:55px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;font-size:28px;
  background:linear-gradient(135deg,var(--gray-100),var(--gray-200));
  cursor:pointer;border:2px solid transparent;transition:all .15s;
}
.gallery-thumb.active,.gallery-thumb:hover{border-color:var(--primary)}
.ad-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;position:sticky;top:80px}
.ad-panel-body{padding:24px}
.ad-panel-price{font-size:30px;font-weight:900;color:var(--primary);margin-bottom:4px}
.ad-panel-actions{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.seller-card{margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}
.seller-card-avatar{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-bottom:8px;
}
.seller-card-name{font-size:15px;font-weight:700;color:var(--text)}
.seller-card-since{font-size:12px;color:var(--text-muted)}
.seller-card-rating{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--text-muted);margin-top:4px}

/* ── PUBLISH PAGE ── */
.publish-page{padding:32px 0 64px;max-width:760px;margin:0 auto}
.publish-steps{
  display:flex;align-items:center;justify-content:center;
  gap:0;margin-bottom:40px;
}
.pub-step{
  display:flex;align-items:center;gap:8px;
  padding:10px 20px;font-size:13px;font-weight:600;
  color:var(--text-muted);position:relative;
}
.pub-step:not(:last-child)::after{
  content:'→';margin-left:12px;color:var(--border);font-weight:400;
}
.pub-step.active .pub-step-num{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 4px 12px var(--primary-glow)}
.pub-step.active{color:var(--text)}
.pub-step.done .pub-step-num{background:var(--success);color:#fff}
.pub-step-num{
  width:28px;height:28px;border-radius:50%;
  background:var(--gray-200);color:var(--text-muted);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;transition:all .25s;flex-shrink:0;
}
.pub-step-label{white-space:nowrap}
.publish-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);padding:32px}
.form-section{margin-bottom:28px}
.form-section-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:18px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-full{grid-column:1/-1}
.drop-zone{
  border:2px dashed var(--border);border-radius:var(--radius-lg);
  padding:40px 24px;text-align:center;cursor:pointer;
  transition:all .2s;background:var(--gray-50);
}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:var(--primary-bg)}
.drop-zone-icon{font-size:40px;margin-bottom:12px}
.drop-zone-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.drop-zone-sub{font-size:13px;color:var(--text-muted)}

/* ── CHIPS / BADGES ── */
.chip{
  display:inline-flex;align-items:center;padding:3px 10px;
  border-radius:50px;font-size:12px;font-weight:600;
  background:var(--gray-100);color:var(--text-muted);
}
.chip-primary{background:rgba(37,99,235,.1);color:var(--accent)}
.chip-success{background:rgba(16,185,129,.1);color:var(--success)}
.chip-warning{background:rgba(245,158,11,.1);color:var(--warning)}
.chip-danger{background:rgba(239,68,68,.1);color:var(--danger)}
.chip-blue{background:rgba(37,99,235,.1);color:#2563eb}

/* ── TOAST ── */
.toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:8px;z-index:9999}
.toast{
  padding:13px 20px;border-radius:12px;font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,#0f172a,#1e293b);
  box-shadow:0 8px 30px rgba(0,0,0,.3);pointer-events:none;
  animation:toastIn .3s ease;
}
.toast.success{background:linear-gradient(135deg,#059669,#10b981)}
.toast.error{background:linear-gradient(135deg,#dc2626,#ef4444)}
.toast.warning{background:linear-gradient(135deg,#d97706,#f59e0b)}
@keyframes toastIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.toast.hiding{opacity:0;transform:translateY(8px);transition:all .25s}

/* ── MODAL ── */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);
  display:none;align-items:center;justify-content:center;z-index:999;padding:20px;
}
.modal{background:var(--surface);border-radius:var(--radius-xl);width:100%;max-width:480px;overflow:hidden;box-shadow:var(--shadow-xl)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}
.modal-title{font-size:18px;font-weight:700;color:var(--text)}
.modal-close{
  width:32px;height:32px;border-radius:50%;background:var(--gray-100);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--text-muted);
  transition:all .15s;
}
.modal-close:hover{background:var(--gray-200)}
.modal-body{padding:24px}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;gap:10px;justify-content:flex-end}

/* ── FOOTER ── */
.footer{background:#0f172a;color:rgba(255,255,255,.5);padding:52px 20px 28px;margin-top:64px}
.footer-grid{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:900;color:#fff;margin-bottom:12px}
.footer-logo-mark{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px}
.footer-logo-text strong{color:var(--primary)}
.footer-desc{font-size:13px;line-height:1.7;max-width:220px}
.footer-social{display:flex;gap:10px;margin-top:16px}
.social-link{
  width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:all .15s;
}
.social-link:hover{background:var(--primary);transform:translateY(-2px)}
.footer-col h4{font-size:12px;font-weight:700;color:rgba(255,255,255,.8);margin-bottom:14px;text-transform:uppercase;letter-spacing:.06em}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:13px;transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-bottom{max-width:var(--container);margin:0 auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:space-between;font-size:12px;flex-wrap:wrap;gap:8px}
.footer-legal{display:flex;gap:16px}
.footer-legal a{transition:color .15s}
.footer-legal a:hover{color:#fff}
.footer-copy{font-size:12px}

/* ── MOBILE SIDEBAR DRAWER ── */
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:299;backdrop-filter:blur(1px)}
.filter-mobile-btn{display:none;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);background:var(--surface);border:1.5px solid var(--border);font-size:13px;font-weight:600;color:var(--text);cursor:pointer;white-space:nowrap}
.sidebar-close-btn{display:none;background:none;border:none;cursor:pointer;font-size:20px;color:var(--text-muted);padding:0 4px;line-height:1;flex-shrink:0}
.sidebar-apply{display:none;padding-top:16px}

/* ── RESPONSIVE ── */
@media(max-width:1100px){
  .ads-grid{grid-template-columns:repeat(4,1fr)}
  .categories-grid{grid-template-columns:repeat(4,1fr)}
  .ad-page-layout{grid-template-columns:1fr 320px}
}
@media(max-width:900px){
  .ads-grid{grid-template-columns:repeat(3,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .testimonials-grid{grid-template-columns:1fr 1fr}
  .page-layout{grid-template-columns:1fr}
  .sidebar{position:fixed;top:0;left:0;height:100vh;width:280px;max-width:85vw;z-index:300;overflow-y:auto;border-radius:0;transform:translateX(-100%);transition:transform .3s ease;box-shadow:4px 0 24px rgba(0,0,0,.18)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.open{display:block}
  .filter-mobile-btn{display:flex}
  .sidebar-close-btn{display:inline-block}
  .sidebar-apply{display:block}
  .ad-page-layout{grid-template-columns:1fr}
  .auth-page{grid-template-columns:1fr}
  .auth-left{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .promo-layout{flex-direction:column;gap:24px}
  .app-layout{grid-template-columns:1fr}
  .app-visual{display:none}
}
@media(max-width:640px){
  .ads-grid{grid-template-columns:repeat(2,1fr)}
  .categories-grid{grid-template-columns:repeat(4,1fr)}
  .steps-grid{grid-template-columns:1fr 1fr}
  .testimonials-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .header-search{display:none}
  .promo-section{padding:28px 24px}
  .form-grid{grid-template-columns:1fr}
  .publish-steps{gap:0;justify-content:space-between}
  .pub-step-label{display:none}
}
@media(max-width:400px){
  .ads-grid{grid-template-columns:1fr}
  .categories-grid{grid-template-columns:repeat(3,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
</style>