/*
Theme Name: AI Naymur Tools Portal
Theme URI: https://ai.naymurrahman.com
Author: Al Naymur
Author URI: https://ai.naymurrahman.com
Description: Personal tools portal as a PWA. Tool 01: YouTube Audio Mode with true background playback when installed as an app.
Version: 4.0.0
Requires at least: 5.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ai-naymur
*/

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,700;1,700&family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #0d0b0e;
  --surface: #161319;
  --surface2: #1e1a22;
  --border: #2a2530;
  --text: #e8e4ec;
  --text-dim: #8a8490;
  --accent: #e6c44d;
  --accent-glow: #e6c44d33;
  --red: #c0392b;
  --red-dim: #c0392b44;
  --green: #27ae60;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed; inset: 0; opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-wrapper { position: relative; z-index: 1; min-height: 100vh; display: flex; flex-direction: column; }
.container { width: 100%; max-width: 540px; margin: 0 auto; padding: 0 1.25rem; }

/* HEADER */
.site-header { padding: 1.5rem 0; border-bottom: 1px solid var(--border); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; max-width: 540px; }
.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-icon { width: 36px; height: 36px; border: 2px solid var(--accent); border-radius: 8px; display: grid; place-items: center; transform: rotate(45deg); flex-shrink: 0; }
.brand-icon span { transform: rotate(-45deg); font-size: 14px; color: var(--accent); }
.brand-name { font-weight: 600; font-size: 1rem; letter-spacing: 0.02em; }
.brand-sub { font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-dim); display: block; }
.header-badge { background: var(--surface2); border: 1px solid var(--border); padding: 0.4rem 0.85rem; border-radius: 6px; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.05em; color: var(--accent); }

/* PWA INSTALL BANNER */
.pwa-banner {
  background: linear-gradient(135deg, #1a1520 0%, #1e1428 100%);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  margin-bottom: 1.5rem;
  display: none;
  animation: slideUp 0.4s ease;
}

.pwa-banner.show { display: block; }

.pwa-banner-inner {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.pwa-icon-wrap {
  width: 42px; height: 42px;
  background: var(--accent);
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.pwa-icon-wrap svg { color: var(--bg); }

.pwa-banner-text {
  flex: 1;
}

.pwa-banner-text strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.15rem;
}

.pwa-banner-text span {
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1.4;
  display: block;
}

.pwa-install-btn {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.78rem;
  cursor: pointer;
  white-space: nowrap;
  transition: filter 0.2s;
}

.pwa-install-btn:hover { filter: brightness(1.1); }

.pwa-dismiss {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0 0.25rem;
  margin-left: 0.25rem;
}

/* PWA MODE BADGE */
.pwa-mode-badge {
  display: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  background: var(--green);
  color: #fff;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

.pwa-mode-badge.show { display: inline-block; }

/* HOMEPAGE */
.hero { padding: 3rem 0 2rem; text-align: center; }
.hero-eyebrow { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.hero h1 { font-family: 'Playfair Display', serif; font-size: 2.4rem; font-weight: 700; line-height: 1.15; margin-bottom: 1rem; }
.hero h1 em { color: var(--accent); font-style: italic; }
.hero-desc { color: var(--text-dim); font-size: 0.95rem; line-height: 1.7; max-width: 420px; margin: 0 auto; }
.tools-section { padding: 1rem 0 3rem; }
.section-label { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 1rem; }
.tool-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 1.5rem; margin-bottom: 1rem; transition: border-color 0.3s, transform 0.2s; display: block; }
.tool-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.tool-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.tool-number { font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-dim); }
.tool-status { font-size: 0.65rem; padding: 0.2rem 0.6rem; border-radius: 20px; font-weight: 500; }
.tool-status.live { background: #27ae6022; color: #82e0aa; border: 1px solid #27ae6044; }
.tool-status.soon { background: var(--surface2); color: var(--text-dim); border: 1px solid var(--border); }
.tool-card h3 { font-family: 'Playfair Display', serif; font-size: 1.35rem; font-weight: 700; margin-bottom: 0.4rem; }
.tool-card h3 em { color: var(--accent); font-style: italic; }
.tool-card p { color: var(--text-dim); font-size: 0.85rem; line-height: 1.6; }
.tool-card .arrow { display: inline-block; margin-top: 0.75rem; color: var(--accent); font-size: 0.85rem; font-weight: 600; transition: transform 0.2s; }
.tool-card:hover .arrow { transform: translateX(4px); }

/* YT AUDIO PAGE */
.page-content { padding: 2rem 0 3rem; flex: 1; }
.tool-label { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; color: var(--text-dim); text-transform: uppercase; margin-bottom: 0.5rem; }
.page-title { font-family: 'Playfair Display', serif; font-size: 2rem; font-weight: 700; line-height: 1.15; margin-bottom: 0.75rem; }
.page-title em { color: var(--accent); font-style: italic; }
.page-desc { color: var(--text-dim); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1.5rem; }

.input-group { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 0.85rem 1rem; display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; transition: border-color 0.3s, box-shadow 0.3s; }
.input-group:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.input-icon { width: 20px; height: 20px; flex-shrink: 0; color: var(--text-dim); }
.input-group input[type="text"] { flex: 1; background: none; border: none; outline: none; color: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; width: 100%; }
.input-group input::placeholder { color: var(--text-dim); opacity: 0.5; }
.clear-btn { background: none; border: none; color: var(--text-dim); cursor: pointer; padding: 4px; font-size: 1rem; display: none; transition: color 0.2s; }
.clear-btn:hover { color: var(--text); }
.clear-btn.visible { display: block; }

.btn-primary { width: 100%; padding: 0.9rem; background: var(--accent); color: var(--bg); border: none; border-radius: 10px; font-family: 'DM Sans', sans-serif; font-weight: 600; font-size: 1rem; cursor: pointer; transition: all 0.25s; margin-bottom: 1.5rem; }
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 6px 24px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; filter: none; }

.status-msg { text-align: center; padding: 0.6rem 1rem; border-radius: 8px; font-size: 0.8rem; margin-bottom: 1rem; display: none; animation: fadeIn 0.3s ease; line-height: 1.5; }
.status-msg.error { display: block; background: var(--red-dim); color: #f5b7b1; border: 1px solid #c0392b55; }
.status-msg.success { display: block; background: #27ae6022; color: #82e0aa; border: 1px solid #27ae6044; }
.status-msg.info { display: block; background: #3498db22; color: #85c1e9; border: 1px solid #3498db44; }
.status-msg.warn { display: block; background: #e6c44d18; color: var(--accent); border: 1px solid #e6c44d44; }

/* PLAYER */
.audio-player { display: none; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; animation: slideUp 0.4s ease; margin-bottom: 2rem; }
.audio-player.active { display: block; }
.player-thumb { width: 100%; aspect-ratio: 16/9; background: var(--surface2); position: relative; overflow: hidden; }
.player-thumb img { width: 100%; height: 100%; object-fit: cover; opacity: 0.6; }
.player-thumb .gradient-overlay { position: absolute; inset: 0; background: linear-gradient(to top, var(--surface) 0%, transparent 60%); }
.now-playing-badge { position: absolute; top: 0.75rem; left: 0.75rem; background: var(--accent); color: var(--bg); font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.25rem 0.6rem; border-radius: 4px; display: flex; align-items: center; gap: 0.35rem; }
.bg-badge { position: absolute; top: 0.75rem; right: 0.75rem; font-family: 'JetBrains Mono', monospace; font-size: 0.55rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.25rem 0.6rem; border-radius: 4px; }
.bg-badge.pwa { background: var(--green); color: #fff; display: block; }
.bg-badge.browser { background: var(--surface2); color: var(--text-dim); border: 1px solid var(--border); display: block; }
.pulse-dot { width: 6px; height: 6px; background: var(--bg); border-radius: 50%; animation: pulse 1.5s infinite; }
.player-info { padding: 1rem 1.15rem; }
.player-title { font-weight: 600; font-size: 0.95rem; margin-bottom: 0.25rem; line-height: 1.4; }
.player-channel { color: var(--text-dim); font-size: 0.78rem; }

.progress-wrap { padding: 0 1.15rem 0.5rem; display: flex; align-items: center; gap: 0.5rem; }
.progress-time { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-dim); min-width: 36px; }
.progress-bar-outer { flex: 1; height: 4px; background: var(--border); border-radius: 4px; cursor: pointer; position: relative; }
.progress-bar-inner { height: 100%; background: var(--accent); border-radius: 4px; width: 0%; transition: width 0.3s linear; }

.controls { display: flex; align-items: center; justify-content: center; gap: 1.5rem; padding: 0.5rem 1.15rem 1.15rem; }
.ctrl-btn { background: none; border: none; color: var(--text-dim); cursor: pointer; padding: 8px; border-radius: 50%; transition: all 0.2s; display: grid; place-items: center; }
.ctrl-btn:hover { color: var(--text); background: var(--surface2); }
.ctrl-btn.main { width: 52px; height: 52px; background: var(--accent); color: var(--bg); border-radius: 50%; }
.ctrl-btn.main:hover { filter: brightness(1.1); transform: scale(1.06); }

.volume-row { display: flex; align-items: center; gap: 0.6rem; padding: 0 1.15rem 1.15rem; }
.volume-row svg { flex-shrink: 0; color: var(--text-dim); }
.volume-slider { flex: 1; -webkit-appearance: none; appearance: none; height: 4px; background: var(--border); border-radius: 4px; outline: none; }
.volume-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; background: var(--accent); border-radius: 50%; cursor: pointer; }
.volume-slider::-moz-range-thumb { width: 14px; height: 14px; background: var(--accent); border-radius: 50%; cursor: pointer; border: none; }

/* Info */
.info-section { margin-top: 1rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.info-grid { display: grid; gap: 0.75rem; }
.info-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 0.85rem 1rem; display: flex; align-items: flex-start; gap: 0.75rem; }
.info-card .icon-box { width: 28px; height: 28px; background: var(--surface2); border-radius: 6px; display: grid; place-items: center; flex-shrink: 0; font-size: 13px; }
.info-card p { font-size: 0.8rem; color: var(--text-dim); line-height: 1.5; }
.info-card p strong { color: var(--text); font-weight: 500; }
.info-card.highlight { border-color: var(--accent); background: #1a1520; }

/* Footer */
.site-footer { padding: 1.5rem 0; border-top: 1px solid var(--border); margin-top: auto; }
.site-footer .container { display: flex; align-items: center; justify-content: space-between; max-width: 540px; }
.footer-text { font-size: 0.72rem; color: var(--text-dim); }
.footer-link { font-size: 0.72rem; color: var(--accent); transition: opacity 0.2s; }
.footer-link:hover { opacity: 0.8; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .page-title { font-size: 1.65rem; }
  .container { padding: 0 1rem; }
}

body.admin-bar .site-header { margin-top: 32px; }
@media (max-width: 782px) { body.admin-bar .site-header { margin-top: 46px; } }