:root {
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;

  /* default theme: minimal */
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.1);
  --text: #eaf0ff;
  --muted: rgba(234, 240, 255, 0.68);
  --border: rgba(255, 255, 255, 0.1);

  --primary: #6ee7ff;
  --accent: #a78bfa;

  --shadow: 0 18px 60px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --radius2: 26px;

  --ring: 0 0 0 3px rgba(110, 231, 255, 0.18);
}

html,
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
}

.safe-area {
  padding-bottom: env(safe-area-inset-bottom);
  padding-top: env(safe-area-inset-top);
}

/* Theme presets */
[data-theme="minimal"] {
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.1);
  --text: #eaf0ff;
  --muted: rgba(234, 240, 255, 0.68);
  --border: rgba(255, 255, 255, 0.1);
  --primary: #6ee7ff;
  --accent: #a78bfa;
}

[data-theme="darkpro"] {
  --bg: #070a12;
  --card: rgba(255, 255, 255, 0.05);
  --card2: rgba(255, 255, 255, 0.09);
  --text: #f3f6ff;
  --muted: rgba(243, 246, 255, 0.68);
  --border: rgba(255, 255, 255, 0.1);
  --primary: #22c55e;
  --accent: #60a5fa;
}

[data-theme="neon"] {
  --bg: #050510;
  --card: rgba(255, 255, 255, 0.05);
  --card2: rgba(255, 255, 255, 0.09);
  --text: #f6f7ff;
  --muted: rgba(246, 247, 255, 0.65);
  --border: rgba(255, 255, 255, 0.1);
  --primary: #ff4ecd;
  --accent: #00e5ff;
}

[data-theme="glass"] {
  --bg: radial-gradient(
      1200px 800px at 20% 10%,
      rgba(120, 119, 198, 0.28),
      transparent 55%
    ),
    radial-gradient(
      900px 600px at 80% 30%,
      rgba(34, 197, 94, 0.18),
      transparent 55%
    ),
    #070a12;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.12);
  --text: #f3f6ff;
  --muted: rgba(243, 246, 255, 0.7);
  --border: rgba(255, 255, 255, 0.12);
  --primary: #a78bfa;
  --accent: #22c55e;
}

/* Aydınlık (light) tema */
[data-theme="light"] {
  --bg: #f5f5f7;
  --card: #ffffff;
  --card-soft: #f0f0f5;
  --text: #111827;
  --muted: #6b7280;
  --border: rgba(148, 163, 184, 0.6);

  --primary: #2563eb;
  --accent: #22c55e;
  --accent-soft: rgba(37, 99, 235, 0.12);

  color: var(--text);
  background: radial-gradient(circle at top, #ffffff, #e5e7eb);
}

/* Sakura (kadınsı/pastel) tema */
[data-theme="sakura"] {
  /* Arka plan: glass'e benzer ama pembe/lila tonlar */
  --bg: radial-gradient(
      1200px 800px at 20% 10%,
      rgba(255, 79, 163, 0.22),
      transparent 55%
    ),
    radial-gradient(
      900px 600px at 80% 30%,
      rgba(183, 108, 255, 0.2),
      transparent 55%
    ),
    radial-gradient(
      900px 700px at 45% 95%,
      rgba(255, 180, 220, 0.12),
      transparent 60%
    ),
    #07070b;

  /* Kartlar / yazılar */
  --card: rgba(255, 255, 255, 0.065);
  --card2: rgba(255, 255, 255, 0.12);
  --text: #f7f2ff;
  --muted: rgba(247, 242, 255, 0.72);
  --border: rgba(255, 255, 255, 0.14);

  /* Buton gradient (btn-primary burada besleniyor) */
  --primary: #ff4fa3; /* pembe */
  --accent: #b76cff; /* lila */

  /* Focus ring biraz daha pembe kalsın */
  --ring: 0 0 0 3px rgba(255, 79, 163, 0.18);
}

/* tiny helpers */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.card-soft {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.btn {
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
}

.btn:focus {
  outline: none;
  box-shadow: var(--ring);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  color: #061018;
}

.muted {
  color: var(--muted);
}

.hr {
  height: 1px;
  background: var(--border);
}

/* --- Basit responsive helper'lar (Tailwind benzeri) --- */

/* Varsayılan: .hidden olan her şeyi gizle */
.hidden {
  display: none;
}

/* 768px ve üzeri (md) için kurallar */
@media (min-width: 768px) {
  /* class="md:flex" olanları flex yap */
  .md\:flex {
    display: flex;
  }

  /* class="md:hidden" olanları gizle */
  .md\:hidden {
    display: none;
  }
}