/* ==========================================================================
   HEADER.CSS - Top Bar, Navigation, Trust Bar
   پیکسل به پیکسل از تمام صفحات HTML
   ========================================================================== */

/* ── TOP BAR ── */
.topbar{background:var(--navy);padding:.45rem 0;font-size:12px;color:rgba(255,255,255,.7)}
.topbar-inner{max-width:1280px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.topbar a{color:rgba(255,255,255,.7);text-decoration:none;margin-right:1.5rem;transition:color .2s}
.topbar a:hover{color:#fff}

/* ── NAV ── */
.nav{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(14,42,92,.07);box-shadow:0 2px 24px rgba(14,42,92,.06)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:space-between;height:70px;gap:1.5rem}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.logo-mark{width:40px;height:40px;background:linear-gradient(135deg,var(--navy),var(--blue2));border-radius:11px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(26,79,191,.3);flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text span:first-child{font-size:15px;font-weight:800;color:var(--navy)}
.logo-text span:last-child{font-size:10.5px;color:var(--gray);font-weight:400}

/* nav-mid kept for backward-compat with shop pages, but not used on blog pages */
.nav-mid{display:flex;align-items:center;gap:1rem;flex:1;justify-content:center}

/* nav-links: visible by default on desktop (matches HTML spec) */
.nav-links{display:flex;list-style:none;gap:.2rem;margin:0;padding:0;align-items:center}
.nav-links a{display:block;padding:8px 14px;font-size:13.5px;color:var(--mid);text-decoration:none;border-radius:8px;transition:all .2s;position:relative;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue3)}

/* nav-search: only shown when explicitly enabled (shop pages) */
.nav-search{display:none;flex:1;max-width:340px}
.searchbar{display:flex;align-items:center;gap:8px;background:var(--light);border:1.5px solid var(--border);border-radius:99px;padding:9px 16px;width:100%}
.searchbar svg{width:16px;height:16px;stroke:var(--gray);flex-shrink:0}
.searchbar input,.searchbar select{background:none;border:none;outline:none;color:var(--dark);font-size:13px;width:100%;font-family:inherit}
.searchbar form{flex:1;width:100%}

/* nav-icons: hidden by default; only shown on shop pages via .nav-ctas context */
.nav-icons{display:none;gap:6px;align-items:center;flex-shrink:0}
.icon-btn{position:relative;width:38px;height:38px;border-radius:10px;background:var(--light);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;text-decoration:none}
.icon-btn:hover{background:var(--blue3);border-color:var(--blue2)}
.icon-btn svg{width:18px;height:18px;stroke:var(--mid)}
.icon-btn.active svg{fill:var(--red);stroke:var(--red)}
.icon-badge{position:absolute;top:-5px;left:-5px;background:var(--green2);color:#fff;font-size:10px;font-weight:800;border-radius:99px;min-width:17px;height:17px;display:flex;align-items:center;justify-content:center;padding:0 3px;font-family:'JetBrains Mono'}

/* nav-ctas: visible by default on desktop (matches HTML spec) */
.nav-ctas{display:flex;gap:8px;align-items:center;flex-shrink:0}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;border:none;padding:9px 20px;border-radius:9px;font-size:13.5px;font-weight:600;cursor:pointer;transition:all .2s;position:relative;overflow:hidden;text-decoration:none;font-family:inherit}
.btn::after{content:'';position:absolute;inset:0;background:rgba(255,255,255,.15);opacity:0;transition:opacity .2s}
.btn:hover::after{opacity:1}
.btn-outline{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-outline:hover{background:var(--blue3)}
.btn-primary{background:linear-gradient(135deg,var(--navy),var(--blue2));color:#fff;box-shadow:0 4px 14px rgba(26,79,191,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(26,79,191,.38)}
.btn-green{background:linear-gradient(135deg,var(--green),var(--green2));color:#fff;box-shadow:0 4px 14px rgba(5,150,105,.25)}
.btn-green:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(5,150,105,.32)}
.btn-white{background:#fff;color:var(--blue);box-shadow:0 4px 20px rgba(255,255,255,.2)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(255,255,255,.28)}
.btn-lg{padding:13px 30px;font-size:15px;border-radius:11px}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-cancel{background:var(--light);color:var(--mid);padding:12px 24px;border-radius:10px;font-weight:600;border:none;cursor:pointer;font-size:14px}
.btn-submit{background:linear-gradient(135deg,var(--navy),var(--blue2));color:#fff;padding:12px 26px;border-radius:10px;font-weight:700;border:none;cursor:pointer;font-size:14px;box-shadow:0 4px 14px rgba(26,79,191,.25)}
.btn-submit-green{background:linear-gradient(135deg,var(--green),var(--green2));box-shadow:0 4px 14px rgba(5,150,105,.25)}

/* Hamburger: hidden by default on desktop, shown on mobile via media query (matches HTML spec) */
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{width:22px;height:2px;background:var(--mid);border-radius:2px;transition:all .3s}

/* Mobile search/nav drawer: hidden by default, shown via .open class only on mobile */
.mobile-search{display:none;padding:0 1.2rem 12px}
.mobile-nav{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--border);padding:.6rem 1.2rem 1rem}
.mobile-nav.open{display:flex}
.mobile-nav a{padding:11px 4px;font-size:14px;color:var(--mid);font-weight:600;border-bottom:1px solid var(--light);text-decoration:none}
.mobile-nav a:last-child{border-bottom:none}
.mobile-nav a.active{color:var(--blue)}

/* ── TRUST BAR (variants) ── */
/* Variant 1: Marquee (homepage) */
.trust{background:linear-gradient(135deg,var(--navy),#1a3a70);padding:.6rem 0;overflow:hidden}
.trust-track{display:flex;width:max-content;animation:marquee 35s linear infinite}
.trust-track:hover{animation-play-state:paused}
.trust-item{display:flex;align-items:center;gap:8px;padding:0 2.5rem;white-space:nowrap;font-size:12.5px;color:rgba(255,255,255,.85);font-weight:500}
.trust-dot{width:5px;height:5px;border-radius:50%;background:#6EE7B7;flex-shrink:0}

/* Variant 2: Inline (other pages) */
.trust-inner{max-width:1280px;margin:0 auto;padding:0 1.2rem;display:flex;gap:1.8rem;overflow-x:auto;white-space:nowrap}
.trust-inner .trust-item{padding:0;font-size:11.5px}

/* Breadcrumb */
.crumb{padding:14px 0;font-size:12.5px;color:var(--gray);display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.crumb a{color:var(--blue);text-decoration:none}
.crumb a:hover{text-decoration:underline}
.crumb span.sep{color:#CBD5E1}
.back-row{display:flex;align-items:center;gap:10px;margin-bottom:2px}
.back-btn{width:34px;height:34px;border-radius:9px;background:var(--light);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;flex-shrink:0;text-decoration:none}
.back-btn svg{width:17px;height:17px;stroke:var(--mid)}