/* ==========================================
   1. GLOBAL FONT & DYNAMIC COLOR SYSTEM
   ========================================== */
@import url('https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@500;600;700&display=swap');

:root {
  --main-font: 'Josefin Sans', sans-serif;
  
  /* Default Theme (Blue) */
  --bg-dark: #070a12;
  --bg-mesh-1: #0f172a;
  --bg-mesh-2: #1e1b4b;
  --card-bg: rgba(19, 27, 46, 0.75);
  --card-border: rgba(255, 255, 255, 0.1);
  --text-color: #f3f4f6;
  --subtext-color: #9ca3af;
  
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.4);
  --key-bg: #1e293b;
}

/* ACCENT COLOR THEMES */
html[data-accent="purple"] {
  --accent-color: #a855f7;
  --accent-hover: #9333ea;
  --accent-glow: rgba(168, 85, 247, 0.4);
  --bg-mesh-1: #1e1035;
  --bg-mesh-2: #3b0764;
}

html[data-accent="emerald"] {
  --accent-color: #10b981;
  --accent-hover: #059669;
  --accent-glow: rgba(16, 185, 129, 0.4);
  --bg-mesh-1: #064e3b;
  --bg-mesh-2: #022c22;
}

html[data-accent="rose"] {
  --accent-color: #f43f5e;
  --accent-hover: #e11d48;
  --accent-glow: rgba(244, 63, 94, 0.4);
  --bg-mesh-1: #4c0519;
  --bg-mesh-2: #27000d;
}

html[data-accent="amber"] {
  --accent-color: #f59e0b;
  --accent-hover: #d97706;
  --accent-glow: rgba(245, 158, 11, 0.4);
  --bg-mesh-1: #451a03;
  --bg-mesh-2: #2a0800;
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--main-font);
  font-weight: 500;
  color: var(--text-color);
  min-height: 100vh;
  overflow-x: hidden;
}

input, button, select, textarea {
  font-family: inherit;
  font-weight: inherit;
  color: inherit;
}

/* ==========================================
   2. BACKGROUND MODES & DYNAMIC ORBS
   ========================================== */

/* Default Mode 1: Animated Mesh */
body {
  background: linear-gradient(-45deg, var(--bg-dark), var(--bg-mesh-1), var(--bg-mesh-2), var(--bg-dark));
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  position: relative;
}

/* Ambient Floating Orbs */
body::before, body::after {
  content: "";
  position: fixed;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  filter: blur(130px);
  z-index: -1;
  opacity: 0.5;
  transition: background 0.5s ease;
  animation: floatOrbs 10s ease-in-out infinite alternate;
}

body::before {
  background: var(--accent-color);
  top: -60px;
  left: -60px;
}

body::after {
  background: var(--accent-glow);
  bottom: -60px;
  right: -60px;
  animation-delay: -5s;
}

/* Mode 2: Static Midnight Dark */
html[data-bg="static-dark"] body {
  background: #070a12 !important;
  animation: none !important;
}
html[data-bg="static-dark"] body::before, 
html[data-bg="static-dark"] body::after {
  display: none !important;
}

/* Mode 3: Cyber Purple Motion */
html[data-bg="cyber"] body {
  background: linear-gradient(-45deg, #18002e, #090014, #2a004f, #0d001a) !important;
  background-size: 400% 400% !important;
  animation: gradientBG 10s ease infinite !important;
}

/* Mode 4: Minimal Dark Gray */
html[data-bg="minimal"] body {
  background: #111115 !important;
  animation: none !important;
}
html[data-bg="minimal"] body::before, 
html[data-bg="minimal"] body::after {
  display: none !important;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes floatOrbs {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(60px, 80px) scale(1.2); }
}

/* ==========================================
   3. LAYOUT, NAVBAR & CARDS
   ========================================== */
.container { max-width: 1100px; margin: 0 auto; padding: 30px 20px; }
.page-header { text-align: center; margin-bottom: 30px; }
.page-header h1 { font-size: 2.2rem; margin-bottom: 8px; font-weight: 700; }

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background-color: rgba(11, 15, 25, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand { font-size: 1.4rem; font-weight: 700; color: var(--accent-color); transition: color 0.3s ease; }
.nav-links { display: flex; gap: 12px; }

.nav-btn, .settings-nav-btn {
  color: var(--subtext-color);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.25s ease;
}

.nav-btn:hover, .nav-btn.active, .settings-nav-btn.active {
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.08);
}

.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 24px; }

.card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-color);
  box-shadow: 0 10px 30px -10px var(--accent-glow);
}

.full-width { grid-column: 1 / -1; }
.subtext { color: var(--subtext-color); font-size: 0.9rem; margin: 0; }

/* SETTINGS CONTROLS */
.color-picker-grid { display: flex; gap: 14px; margin-top: 8px; }

.color-swatch-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.color-swatch-btn:hover { transform: scale(1.1); }
.color-swatch-btn.active {
  border-color: #ffffff;
  transform: scale(1.15);
  box-shadow: 0 0 14px var(--accent-glow);
}

.setting-row { display: flex; flex-direction: column; gap: 8px; }
.settings-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* INPUTS & BUTTONS */
.custom-input, .custom-textarea {
  width: 100%; background: rgba(7, 10, 18, 0.8); border: 1px solid var(--card-border);
  padding: 12px 14px; border-radius: 10px; outline: none;
}

.action-btn { background: var(--accent-color); color: #fff; border: none; padding: 10px 16px; border-radius: 8px; cursor: pointer; transition: background 0.2s ease; }
.action-btn:hover { background: var(--accent-hover); }
.action-btn.secondary { background: transparent; border: 1px solid var(--card-border); color: var(--text-color); }
.action-btn.secondary.danger:hover { background: #ef4444; border-color: #ef4444; }

footer { text-align: center; padding: 40px 0 20px 0; color: var(--subtext-color); font-size: 0.85rem; }