/* =====================================================
   مکران سید | Design System
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Markazi+Text:wght@400;600;700&family=Vazirmatn:wght@300;400;500;600;700;800&display=swap');

:root {
  /* --- رنگ‌ها --- */
  --color-pine:       #1F3A2E;   /* سبز کاج تیره - هدر/فوتر */
  --color-pine-light: #2E5540;
  --color-paper:       #F0E9DA;  /* کاغذ کاهی - پس‌زمینه اصلی */
  --color-paper-dark:  #E4DAC4;
  --color-clay:        #A3552A;  /* خاک رس - لهجه ثانویه */
  --color-sprout:      #6FA84B;  /* سبز جوانه - دکمه/CTA */
  --color-sprout-dark: #578A3A;
  --color-saffron:     #C9971D;  /* طلایی زعفرانی - نشان/تخفیف */
  --color-ink:         #2B2620;  /* متن اصلی */
  --color-ink-soft:    #5A5347;

  /* --- تایپوگرافی --- */
  --font-display: 'Markazi Text', serif;
  --font-body:    'Vazirmatn', sans-serif;

  --fs-hero:   clamp(2.2rem, 5vw, 4rem);
  --fs-h1:     clamp(1.8rem, 3.5vw, 2.6rem);
  --fs-h2:     clamp(1.4rem, 2.5vw, 1.9rem);
  --fs-body:   1rem;
  --fs-small:  0.85rem;

  /* --- فاصله‌گذاری --- */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 3rem;
  --space-5: 5rem;

  --radius: 10px;
  --radius-lg: 18px;

  --shadow-soft: 0 4px 20px rgba(43, 38, 32, 0.08);
  --shadow-lift: 0 10px 30px rgba(43, 38, 32, 0.16);

  --ease-organic: cubic-bezier(0.34, 1.4, 0.4, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-paper);
  color: var(--color-ink);
  direction: rtl;
  line-height: 1.7;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-pine);
  margin: 0 0 var(--space-2);
}
h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-h1); }
h3 { font-size: var(--fs-h2); }

p { color: var(--color-ink-soft); }

a { color: inherit; text-decoration: none; }

/* --- دکمه‌ها --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.8em 1.6em;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-body);
  border: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease-organic), box-shadow 0.25s;
}
.btn-primary {
  background: var(--color-sprout);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-sprout-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--color-pine);
  color: var(--color-pine);
}
.btn-outline:hover {
  background: var(--color-pine);
  color: #fff;
}

/* --- کارت محصول (سبک برچسب گیاه‌شناسی) --- */
.plant-card {
  background: #fff;
  border: 1px solid var(--color-paper-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  transition: transform 0.35s var(--ease-organic), box-shadow 0.35s;
}
.plant-card:hover {
  transform: translateY(-6px) rotate(-0.3deg);
  box-shadow: var(--shadow-lift);
}
.plant-card__image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-bottom: 1px dashed var(--color-clay);
}
.plant-card__body { padding: var(--space-2); }
.plant-card__category {
  font-size: var(--fs-small);
  color: var(--color-sprout-dark);
  font-weight: 600;
}
.plant-card__price {
  font-family: var(--font-body);
  font-weight: 800;
  color: var(--color-clay);
  font-size: 1.1rem;
}

/* --- نشان (بذر/تخفیف) --- */
.badge {
  display: inline-block;
  padding: 0.25em 0.8em;
  border-radius: 999px;
  font-size: var(--fs-small);
  font-weight: 700;
  background: var(--color-saffron);
  color: #fff;
}

/* --- ناوبری --- */
.navbar {
  background: rgba(31, 58, 46, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-paper);
  padding: 0.9em var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 10px rgba(0,0,0,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.navbar a { color: var(--color-paper); }

.brand {
  display: flex;
  align-items: center;
  gap: 0.5em;
  text-decoration: none;
}
.brand-mark {
  font-size: 1.4rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}
.brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-paper);
  margin: 0;
  letter-spacing: 0.3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 4px 0;
  color: var(--color-paper-dark);
  transition: color 0.25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  right: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--color-saffron);
  transition: width 0.3s var(--ease-organic);
}
.nav-link:hover, .nav-link.active {
  color: #fff;
}
.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.cart-link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  transition: background 0.25s ease, transform 0.25s var(--ease-organic);
}
.cart-link:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-1px);
}
.cart-link svg { color: var(--color-paper); }
.cart-link .cart-badge {
  position: absolute;
  top: -2px; left: -2px;
  min-width: 19px; height: 19px;
  padding: 0 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  border: 2px solid var(--color-pine);
}

/* --- عنصر امضا: ساقه رشد (Growth Stem) --- */
.growth-stem {
  stroke: var(--color-sprout);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 1.2s var(--ease-organic);
}
.growth-stem.in-view { stroke-dashoffset: 0; }

.leaf-pop {
  opacity: 0;
  transform: scale(0.3);
  transition: opacity 0.5s ease, transform 0.5s var(--ease-organic);
}
.leaf-pop.in-view {
  opacity: 1;
  transform: scale(1);
}

/* --- ورود اسکرولی محتوا --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s var(--ease-organic);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* --- ترنزیشن ورود/خروج صفحه --- */
body {
  animation: page-fade-in 0.4s ease;
}
@keyframes page-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
body.page-leaving {
  opacity: 0;
  transition: opacity 0.25s ease;
}

/* --- ناوبری همیشه بالای صفحه، تضمینی با fixed --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.navbar.scrolled {
  background: var(--color-pine);
  box-shadow: 0 6px 20px rgba(0,0,0,0.22);
}

/* --- اسکلتون لودینگ --- */
.skeleton-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-paper-dark);
}
.skeleton-shimmer {
  background: linear-gradient(90deg, var(--color-paper-dark) 25%, #fff 50%, var(--color-paper-dark) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton-card .sk-img { aspect-ratio: 4/3; }
.skeleton-card .sk-line { height: 14px; margin: 10px; border-radius: 4px; }
.skeleton-card .sk-line.short { width: 50%; }

/* --- زوم آرام تصویر محصول --- */
.plant-card__image { transition: transform 0.5s var(--ease-organic); }
.plant-card:hover .plant-card__image { transform: scale(1.06); }
.plant-card { will-change: transform; }
.plant-card > .plant-card__image { overflow: hidden; }

/* --- افکت ریپل روی دکمه‌ها --- */
.btn { position: relative; overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  transform: scale(0);
  animation: ripple-anim 0.6s ease-out;
  pointer-events: none;
}
@keyframes ripple-anim {
  to { transform: scale(3); opacity: 0; }
}

/* --- پالس نشان سبد خرید هنگام افزودن --- */
.cart-badge.pulse {
  animation: badge-pulse 0.5s var(--ease-organic);
}
@keyframes badge-pulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.5); }
  100% { transform: scale(1); }
}

/* --- اسپینر لودینگ دکمه --- */
.btn-loading { position: relative; color: transparent !important; pointer-events: none; }
.btn-loading::after {
  content: '';
  position: absolute; inset: 0; margin: auto;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.5);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- دسترسی‌پذیری: احترام به reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .growth-stem { stroke-dashoffset: 0 !important; }
}

/* --- ریسپانسیو پایه --- */
@media (max-width: 640px) {
  .navbar { padding: 0.7em var(--space-2); }
  .nav-links { gap: 1rem; }
  .nav-link { font-size: 0.85rem; }
  .brand-name { font-size: 1.05rem; }
}

/* --- فوکوس کیبورد قابل مشاهده --- */
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--color-saffron);
  outline-offset: 2px;
}