/* ===================================================================
   BASE.CSS — Reset · Typography · Utilities
=================================================================== */

*,*::before,*::after{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  direction: rtl;
  text-align: right;
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* بافت پس‌زمینه‌ی عمومی: گرادیان شعاعی + گرید کم‌رنگ آینده‌نگر */
body::before{
  content:"";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 18% 8%, rgba(124,58,237,0.16), transparent 42%),
    radial-gradient(circle at 85% 18%, rgba(6,182,212,0.12), transparent 38%),
    radial-gradient(circle at 50% 100%, rgba(124,58,237,0.08), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

body::after{
  content:"";
  position: fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 30%, rgba(0,0,0,.6), transparent 75%);
  pointer-events:none;
  z-index:0;
  opacity:.5;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul,ol{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; cursor:pointer; }
input,textarea,select{ font-family: inherit; }
svg{ display:block; }

h1,h2,h3,h4,h5,h6{
  margin:0;
  font-weight: 800;
  letter-spacing: -0.01em;
}

p{ margin:0; color: var(--text-soft); }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

.relative{ position: relative; z-index: 1; }

/* ---- متن گرادیانی امضادار ---- */
.text-gradient{
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---- چشمه‌ی عنوان (Eyebrow) ---- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--accent-soft);
  margin-bottom: 18px;
}
.eyebrow::before{
  content:"";
  width: 26px;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
}

.section{
  padding: 130px 0;
  position: relative;
  z-index: 1;
}

.section-head{
  max-width: 640px;
  margin-bottom: 64px;
}
.section-head.center{
  margin-inline: auto;
  text-align: center;
}

.section-title{
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-desc{
  font-size: 17px;
  color: var(--text-soft);
}

/* ---- اسکرول‌بار اختصاصی ---- */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background: var(--bg); }
::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 10px;
}

/* ---- فوکوس قابل دسترس ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---- کاهش حرکت برای کاربران حساس ---- */
@media (prefers-reduced-motion: reduce){
  *{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- لودر اولیه‌ی صفحه ---- */
.page-loader{
  position: fixed;
  inset:0;
  background: var(--bg);
  z-index: 9999;
  display:flex;
  align-items:center;
  justify-content:center;
  transition: opacity .6s var(--ease-luxury), visibility .6s;
}
.page-loader.loaded{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.loader-mark{
  width:64px; height:64px;
  position:relative;
}
.loader-mark svg{ width:100%; height:100%; animation: spin-slow 2.2s linear infinite; }

@keyframes spin-slow{ to{ transform: rotate(360deg); } }

/* ---- نوار پیشرفت اسکرول ---- */
.scroll-progress{
  position: fixed;
  top:0; right:0; left:0;
  height: 3px;
  background: var(--grad-primary);
  transform-origin: right;
  transform: scaleX(0);
  z-index: 2000;
}

/* ---- دکمه‌ی بازگشت به بالا ---- */
.back-to-top{
  position: fixed;
  bottom: 32px;
  left: 32px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(14px);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index: 500;
  opacity:0;
  transform: translateY(20px) scale(.8);
  pointer-events:none;
  transition: all .4s var(--ease-luxury);
  box-shadow: var(--shadow-md);
}
.back-to-top.show{
  opacity:1;
  transform: translateY(0) scale(1);
  pointer-events:all;
}
.back-to-top:hover{
  background: var(--grad-primary);
  transform: translateY(-4px) scale(1.05);
}
.back-to-top svg{ width:20px; height:20px; stroke: var(--text); }

/* ---- کرسر سفارشی (دسکتاپ) ---- */
.cursor-dot,.cursor-ring{
  position: fixed;
  top:0; left:0;
  border-radius:50%;
  pointer-events:none;
  z-index: 3000;
  transform: translate(-50%,-50%);
  mix-blend-mode: difference;
}
.cursor-dot{ width:6px; height:6px; background:#fff; }
.cursor-ring{
  width:34px; height:34px;
  border:1px solid rgba(255,255,255,.6);
  transition: width .25s var(--ease-luxury), height .25s var(--ease-luxury), border-color .25s;
}
.cursor-ring.hovered{
  width: 58px; height: 58px;
  border-color: var(--accent-soft);
}
@media (hover:none), (pointer:coarse){
  .cursor-dot,.cursor-ring{ display:none; }
}