/* assets/css/style.css — tonirulislam.tech */

/* ── CSS Variables ───────────────────────────────────────── */
:root {
  --accent-color:  #e8673a;
  --accent-mid:    #f09060;
  --accent-light:  rgba(232,103,58,0.08);
  --accent-glow:   rgba(232,103,58,0.25);
  --bg-primary:    #faf9f6;
  --bg-secondary:  #f3f0eb;
  --card-bg:       #ffffff;
  --glass-bg:      rgba(250,249,246,0.75);
  --text-black:    #1a1612;
  --text-dark:     #2d2520;
  --text-muted:    #7a7068;
  --border:        #e8e2d8;
  --divider:       #f0ece4;
  --shadow-sm:     0 1px 3px rgba(60,40,20,0.07), 0 1px 2px rgba(60,40,20,0.05);
  --shadow-lg:     0 20px 40px rgba(60,40,20,0.12);
  --input-bg:      #ffffff;
  --code-bg:       #f3f0eb;
  --blockquote-bg: #f3f0eb;
  --nav-height:    72px;
  --nav-bg:        rgba(250,249,246,0.88);
}

[data-theme="dark"] {
  --bg-primary:    #140f0b;
  --bg-secondary:  #1e1712;
  --card-bg:       #1e1712;
  --glass-bg:      rgba(30,23,18,0.82);
  --text-black:    #f5f0ea;
  --text-dark:     #e8e0d4;
  --text-muted:    #8a7f74;
  --border:        #2e2318;
  --divider:       #1e1712;
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.35);
  --shadow-lg:     0 20px 40px rgba(0,0,0,0.45);
  --input-bg:      #140f0b;
  --code-bg:       #140f0b;
  --blockquote-bg: #140f0b;
  --nav-bg:        rgba(20,15,11,0.92);
  --accent-light:  rgba(232,103,58,0.12);
  --accent-glow:   rgba(232,103,58,0.2);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-primary);
  color: var(--text-dark);
  transition: background 0.35s, color 0.35s;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; cursor: none; }
button { font-family: inherit; cursor: none; }

/* ── Custom cursor ───────────────────────────────────────── */
body { cursor: none; }

.cursor {
  position: fixed;
  width: 12px; height: 12px;
  background: var(--accent-color);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: transform 0.12s, width 0.25s, height 0.25s, opacity 0.2s;
  mix-blend-mode: multiply;
}
[data-theme="dark"] .cursor { mix-blend-mode: screen; }

.cursor-ring {
  position: fixed;
  width: 38px; height: 38px;
  border: 1.5px solid var(--accent-color);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: transform 0.18s ease-out, width 0.3s, height 0.3s, opacity 0.3s;
  opacity: 0.45;
}

body.cursor-hover .cursor {
  transform: translate(-50%, -50%) scale(2.4);
}
body.cursor-hover .cursor-ring {
  transform: translate(-50%, -50%) scale(1.6);
  opacity: 0.85;
}

@media (hover: none) or (pointer: coarse) {
  body { cursor: auto; }
  .cursor, .cursor-ring { display: none; }
}

/* ── Page transition ─────────────────────────────────────── */
#pt {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.4s;
}
#pt.hidden { opacity: 0; pointer-events: none; }
.pt-logo { text-align: center; }
.pt-wordmark {
  font-family: 'DM Sans', sans-serif; font-size: 1.3rem; font-weight: 700;
  color: var(--text-black); margin-bottom: 20px;
}
.pt-wordmark .ptt { font-family: 'Caveat', cursive; color: var(--accent-color); }
.pt-bar-wrap {
  width: 180px; height: 3px; background: var(--border);
  border-radius: 100px; overflow: hidden; margin: 0 auto 16px;
}
.pt-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-mid));
  border-radius: 100px; width: 0%;
  transition: width 0.6s cubic-bezier(.4,0,.2,1);
}
.pt-dots { display: flex; justify-content: center; gap: 6px; }
.pt-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-color); opacity: 0.4;
  animation: ptPulse 1.2s infinite;
}
.pt-dot:nth-child(2) { animation-delay: 0.2s; }
.pt-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes ptPulse { 0%,100%{opacity:0.3;transform:scale(1)} 50%{opacity:1;transform:scale(1.3)} }

#pb {
  position: fixed; top: 0; left: 0; height: 3px; z-index: 9998;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-mid));
  width: 0%; transition: width 0.3s;
}

/* ── Nav ─────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(24px, 5vw);
  background: var(--nav-bg);
  backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--border);
  transition: background 0.35s, border-color 0.35s;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 1px;
  text-decoration: none;
  line-height: 1;
}
.logo-name {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -.015em;
  color: var(--text-black);
  transition: color .35s;
}
.logo-tld {
  font-family: 'Caveat', cursive;
  font-size: 1.36rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
}
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-links { list-style: none; display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 7px 14px; border-radius: 10px;
  font-size: 0.88rem; font-weight: 500;
  color: var(--text-muted); text-decoration: none;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-dark); background: var(--bg-secondary); }

/* Subscribe CTA */
.nav-cta {
  padding: 8px 18px !important; margin-left: 4px;
  background: var(--accent-color) !important; color: #fff !important;
  border-radius: 100px !important;
  box-shadow: 0 3px 10px var(--accent-glow);
  transition: opacity 0.2s, transform 0.15s !important;
}
.nav-cta:hover { opacity: 0.88 !important; transform: translateY(-1px); }

/* ── Search trigger ──────────────────────────────────────── */
.search-trigger {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 14px; margin: 0 4px;
  border: 1.5px solid var(--border); border-radius: 10px;
  background: var(--glass-bg); backdrop-filter: blur(8px);
  color: var(--text-muted); font-size: 0.83rem; font-weight: 400;
  cursor: pointer; transition: all 0.2s;
}
.search-trigger:hover { border-color: var(--accent-color); color: var(--accent-color); }
.st-icon { width: 15px; height: 15px; flex-shrink: 0; }
.st-text { display: none; }
@media (min-width: 860px) { .st-text { display: inline; } }
.st-kbd { display: flex; gap: 3px; }
.st-kbd kbd {
  padding: 1px 5px; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: 5px;
  font-size: 0.7rem; color: var(--text-muted); font-family: inherit;
}

/* ── Theme toggle ────────────────────────────────────────── */
.theme-toggle { cursor: pointer; position: relative; display: flex; }
.theme-toggle input { display: none; }
.tt-wrap {
  width: 40px; height: 40px; border-radius: 10px;
  border: 1.5px solid var(--border); background: var(--glass-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; transition: all 0.2s; overflow: hidden; position: relative;
}
.theme-toggle:hover .tt-wrap { border-color: var(--accent-color); background: var(--accent-light); }
.tt-icon { position: absolute; transition: opacity 0.2s, transform 0.2s; }
.tt-moon { opacity: 0; transform: rotate(-90deg); }
[data-theme="dark"] .tt-sun  { opacity: 0; transform: rotate(90deg); }
[data-theme="dark"] .tt-moon { opacity: 1; transform: rotate(0deg); }

/* ── Hamburger button ────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 40px; height: 40px; padding: 0;
  background: none; border: 1.5px solid var(--border);
  border-radius: 10px; cursor: pointer; flex-shrink: 0;
  transition: border-color 0.2s, background 0.2s;
}
.nav-hamburger:hover { border-color: var(--accent-color); background: var(--accent-light); }
.nav-hamburger span {
  display: block; width: 18px; height: 2px;
  background: var(--text-dark); border-radius: 2px;
  transition: transform 0.3s cubic-bezier(.4,0,.2,1), opacity 0.2s, width 0.3s;
  transform-origin: center;
}
.nav-hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.is-open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Search overlay ──────────────────────────────────────── */
#so {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(26,22,18,0.55); backdrop-filter: blur(8px);
  display: none; align-items: flex-start; justify-content: center;
  padding-top: clamp(60px, 12vh, 120px);
}
#so.open { display: flex; }
.sb {
  width: min(600px, 92vw);
  background: var(--card-bg); border-radius: 20px;
  box-shadow: var(--shadow-lg); overflow: hidden; border: 1px solid var(--border);
}
.sir {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px; border-bottom: 1px solid var(--divider);
}
#si {
  flex: 1; border: none; background: transparent; outline: none;
  font-family: 'DM Sans', sans-serif; font-size: 1rem; color: var(--text-dark);
}
#si::placeholder { color: var(--text-muted); }
.sc {
  width: 28px; height: 28px; border: none; border-radius: 6px;
  background: var(--bg-secondary); color: var(--text-muted);
  cursor: pointer; font-size: 0.8rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.sc:hover { background: var(--accent-light); color: var(--accent-color); }
.sr { max-height: 360px; overflow-y: auto; }
.se { padding: 40px 20px; text-align: center; color: var(--text-muted); font-size: 0.9rem; }
.sri {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 20px; text-decoration: none; color: inherit;
  transition: background 0.15s; cursor: pointer;
}
.sri:hover, .sri.sk { background: var(--accent-light); }
.sriem {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--accent-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.srit  { font-size: 0.9rem; font-weight: 500; color: var(--text-dark); margin-bottom: 2px; }
.srim  { font-size: 0.75rem; color: var(--text-muted); display: flex; align-items: center; gap: 8px; }
.sf {
  display: flex; gap: 20px; padding: 10px 20px;
  border-top: 1px solid var(--divider); background: var(--bg-secondary);
}
.sh { font-size: 0.72rem; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
.sh kbd {
  padding: 1px 6px; border: 1px solid var(--border); border-radius: 5px;
  background: var(--card-bg); font-size: 0.7rem; font-family: inherit;
}

/* ── Tag chips ───────────────────────────────────────────── */
.tag {
  display: inline-block; padding: 3px 12px; border-radius: 100px;
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.tag.ti { background: rgba(232,103,58,0.12);  color: #e8673a; }
.tag.tr { background: rgba(239,68,68,0.10);   color: #dc2626; }
.tag.ta { background: rgba(245,158,11,0.12);  color: #d97706; }
.tag.te { background: rgba(16,185,129,0.10);  color: #059669; }
.tag.ts { background: rgba(2,132,199,0.10);   color: #0284c7; }

/* ── Buttons (shared) ────────────────────────────────────── */
.btn-p {
  padding: 14px 28px; background: var(--accent-color); color: #fff;
  border: none; border-radius: 14px;
  font-family: 'DM Sans', sans-serif; font-size: 0.95rem; font-weight: 600;
  cursor: pointer; text-decoration: none; display: inline-block;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: opacity 0.2s, transform 0.15s;
}
.btn-p:hover { opacity: 0.88; transform: translateY(-2px); }

.btn-g {
  padding: 14px 28px; background: var(--glass-bg); color: var(--text-dark);
  border: 1.5px solid var(--border); border-radius: 14px;
  font-family: 'DM Sans', sans-serif; font-size: 0.95rem; font-weight: 500;
  cursor: pointer; text-decoration: none; display: inline-block;
  transition: all 0.2s; backdrop-filter: blur(8px);
}
.btn-g:hover { border-color: var(--accent-color); color: var(--accent-color); transform: translateY(-1px); }

/* ── Inner page (about, contact, legal) ──────────────────── */
.inner-page {
  max-width: 1200px; margin: 0 auto;
  padding: clamp(48px,7vw,100px) max(24px,5vw) clamp(48px,6vw,80px);
}
.page-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: var(--accent-light);
  border: 1px solid rgba(232,103,58,0.25); border-radius: 100px;
  font-size: 0.78rem; font-weight: 600; color: var(--accent-color);
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 24px;
}
.page-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.2rem,4.5vw,3.6rem);
  font-weight: 700; line-height: 1.12;
  color: var(--text-black); letter-spacing: -0.025em;
  margin-bottom: 20px; transition: color 0.35s;
}
.page-subtitle {
  font-size: clamp(0.96rem,1.6vw,1.1rem);
  color: var(--text-muted); max-width: 640px;
  line-height: 1.7; margin-bottom: 52px;
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: clamp(48px,6vw,80px) max(24px,5vw) 0;
  transition: background 0.35s, border-color 0.35s;
}
.footer-main {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 48px; padding-bottom: 48px;
}
.footer-tagline { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; margin-top: 12px; max-width: 280px; }
.footer-socials { display: flex; gap: 10px; margin-top: 20px; }
.fsoc {
  width: 36px; height: 36px; border-radius: 10px;
  border: 1.5px solid var(--border); background: var(--glass-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; color: var(--text-muted);
  cursor: pointer; transition: all 0.2s;
}
.fsoc:hover { border-color: var(--accent-color); color: var(--accent-color); background: var(--accent-light); }
.footer-col-head {
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-black);
  margin-bottom: 16px; transition: color 0.35s;
}
.footer-col-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col-links a { font-size: 0.88rem; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-col-links a:hover { color: var(--accent-color); }
.footer-bottom {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding: 20px 0; border-top: 1px solid var(--divider);
  font-size: 0.8rem; color: var(--text-muted);
}
.footer-legal-links { display: flex; align-items: center; gap: 10px; }
.footer-legal-links a { color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-legal-links a:hover { color: var(--accent-color); }
.flsep { width: 3px; height: 3px; border-radius: 50%; background: var(--text-muted); opacity: 0.4; }

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:none; } }
@keyframes pulse  { 0%,100%{transform:scale(1)} 50%{transform:scale(1.4)} }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible  { opacity: 1; transform: none; }


/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */

/* ── Tablet / small desktop ──────────────────────────────── */
@media (max-width: 900px) {
  .footer-main { grid-template-columns: 1fr 1fr; }

  /* Hide desktop nav items */
  nav .nav-links      { display: none; }
  nav .search-trigger { display: none; }
  nav .theme-toggle   { display: none; }

  /* Show hamburger */
  .nav-hamburger {
    display: flex;
    flex-shrink: 0;
    align-self: center;
  }

  /* ── KEY FIX: nav is a flex row — logo grows, hamburger stays right ── */
  nav {
    flex-wrap: wrap;
    height: auto;
    min-height: var(--nav-height);
    padding-top: 0;
    padding-bottom: 0;
    align-items: center;
  }

  /* Logo takes all available horizontal space, pushing hamburger to far right */
  .logo {
    flex: 1;                          /* ← fills remaining space */
    height: var(--nav-height);
    display: flex;
    align-items: center;
    align-self: center;               /* ← vertically centered in nav row */
  }

  /* Mobile drawer — spans full width below the logo/hamburger row */
  .nav-right {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    order: 10;                        /* always below logo row */
    gap: 2px;
    padding: 10px 0 14px;
    border-top: 1px solid var(--border);
    background: var(--nav-bg);
    backdrop-filter: blur(20px) saturate(160%);
  }
  .nav-right.is-open {
    display: flex;
    animation: mobileNavIn 0.22s cubic-bezier(.4,0,.2,1) forwards;
  }
  @keyframes mobileNavIn {
    from { opacity:0; transform:translateY(-6px); }
    to   { opacity:1; transform:translateY(0); }
  }

  .nav-right.is-open .nav-links {
    display: flex; flex-direction: column; align-items: stretch;
    width: 100%; gap: 0;
  }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block; padding: 12px 20px; border-radius: 0;
    font-size: 0.95rem; border-left: 3px solid transparent;
  }
  .nav-links a:hover { background: var(--accent-light); border-left-color: var(--accent-color); }
  .nav-links a.active { color: var(--accent-color); background: var(--accent-light); border-left-color: var(--accent-color); }

  .nav-cta {
    display: block !important; margin: 6px 16px 0 !important;
    border-radius: 10px !important; text-align: center;
    padding: 11px 16px !important;
  }

  .nav-right.is-open .search-trigger {
    display: flex; margin: 8px 16px 0; width: calc(100% - 32px);
  }
  .st-kbd { display: none; }

  .nav-right.is-open .theme-toggle {
    display: flex; align-items: center; gap: 10px; margin: 8px 16px 2px;
  }
  .nav-right.is-open .theme-toggle::before {
    content: 'Toggle dark mode';
    font-size: 0.875rem; color: var(--text-muted);
  }
}

/* ── Mobile ───────────────────────────────────────────────── */
@media (max-width: 640px) {
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}