/* =========================================
   BASE / RESET / VARIABLES
========================================= */

/* =========================
   CSS VARIABLES (THEME COLORS)
========================= */
:root {
  /* Colors */
  --color-bg-dark: #0b0b10;
  --color-panel: #101018;
  --color-muted: #9aa0b4;
  --color-accent: #ff0066;
  --color-accent-alt: #6b5cff;
  --color-glass: rgba(255, 255, 255, 0.03);
  --color-neon-shadow: 0 6px 30px rgba(107, 92, 255, 0.12),
    0 0 18px rgba(255, 0, 102, 0.06);

  /* Sizes & Layout */
  --radius-base: 14px;
  --max-width: 1200px;

  /* Typography */
  --font-main: "Inter", system-ui, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

/* =========================
   BASE RESET
========================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  padding: 0;
  overflow-x: hidden; /* فقط جلوگیری از افقی */

  scroll-behavior: smooth;
  height: 100%;
  font-family: var(--font-main);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: linear-gradient(180deg, var(--color-bg-dark), #06060a 1600px);
  color: #e8eefc;
  padding-top: 0px;

  margin: 0;
}

body {
  padding-top: 40px;
  min-height: 100%; 
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

main {  padding-top: 40px;
  flex: 1 0 auto;
}

.footer {
  flex-shrink: 0; /* فوتر کوچک نشود */
}
/* =========================
   LIGHT THEME
========================= */
body[data-theme="light"] {
  --color-bg-dark: #e7e9f0;
  --color-panel: #f4f5fa;
  --color-muted: #6c738a;
  --color-accent: #5a4cf5;
  --color-accent-alt: #d86ba9;
  --color-glass: rgba(0, 0, 0, 0.04);
  --color-neon-shadow: 0 6px 24px rgba(90, 76, 245, 0.12),
    0 0 14px rgba(216, 107, 169, 0.08);

  color: #1d2333;
  background: linear-gradient(180deg, #f0f1f6, #e8eaf2 1400px);
}

/* =========================
   GLOBAL UTILITY CLASSES
========================= */
#dynamic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background: transparent; /* بک‌گراند اصلی از gradient body */
  }

.section {
  margin: 0 auto; /* حذف margin عمودی که ارتفاع اضافه می‌کند */
  padding: 28px 20px;
  padding-top: 80px;
  max-width: var(--max-width);
  border-radius: 12px;
}

.section-title {
  font-size: 1.6rem;
  color: var(--color-accent);
  text-align: center;
  margin-bottom: 6px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  margin-bottom: 24px;
}