@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Nunito:wght@300;400;500;600;700&display=swap');

/* ---- CSS VARIABLES ---- */
:root {
  /* Pink Palette */
  --pink-50:  #fff0f5;
  --pink-100: #ffe0ec;
  --pink-200: #ffb6d0;
  --pink-300: #ff8ab5;
  --pink-400: #ff5e99;
  --pink-500: #e8478a;
  --pink-600: #c73070;

  /* Background & Surface */
  --bg:         #fff5f8;
  --bg-alt:     #fff0f4;
  --surface:    #ffffff;
  --surface-2:  #fff7fa;
  --border:     #ffd6e7;

  /* Text */
  --text-primary:   #3d1a2e;
  --text-secondary: #7a4060;
  --text-muted:     #b07090;

  /* Accent */
  --accent:         #ff7bac;
  --accent-dark:    #d95c8e;
  --accent-light:   #ffe0ec;

  /* Functional */
  --success:  #a8d8a8;
  --warning:  #ffd6a5;
  --danger:   #ffaaa5;

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(255, 123, 172, 0.12);
  --shadow-md:  0 4px 20px rgba(255, 123, 172, 0.18);
  --shadow-lg:  0 8px 40px rgba(255, 123, 172, 0.22);

  /* Radius */
  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  32px;

  /* Fonts */
  --font-heading: 'Playfair Display', serif;
  --font-body:    'Nunito', sans-serif;

  /* Transitions */
  --transition: all 0.25s ease;
}

/* ---- DARK MODE VARIABLES ---- */
body.dark {
  --bg:         #1a0d14;
  --bg-alt:     #230f1b;
  --surface:    #2e1422;
  --surface-2:  #3a1a2c;
  --border:     #5a2540;

  --text-primary:   #fce4ef;
  --text-secondary: #e8a0bf;
  --text-muted:     #b06080;

  --accent:         #ff7bac;
  --accent-dark:    #ff9eca;
  --accent-light:   #4a1a30;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.55);
}

/* ---- RESET & BASE ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
}

a {
  color: var(--accent-dark);
  text-decoration: none;
  transition: var(--transition);
}
a:hover { color: var(--pink-600); }

img { max-width: 100%; }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--pink-200);
  border-radius: 10px;
}

/* ---- NAVBAR ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  background: rgba(255, 245, 248, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
body.dark .navbar {
  background: rgba(26, 13, 20, 0.88);
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-dark);
  letter-spacing: -0.3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-links a {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  background: var(--accent-light);
  color: var(--accent-dark);
}

/* ---- THEME TOGGLE BUTTON ---- */
.theme-toggle {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 50px;
  padding: 0.3rem 0.75rem;
  cursor: pointer;
  font-size: 1rem;
  transition: var(--transition);
  color: var(--text-primary);
  margin-left: 0.5rem;
}
.theme-toggle:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  transform: scale(1.08);
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.5rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--pink-300), var(--accent-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(233, 71, 138, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(233, 71, 138, 0.45);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--accent-dark);
  border: 1.5px solid var(--accent);
}
.btn-ghost:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
}

.btn-soft {
  background: var(--accent-light);
  color: var(--accent-dark);
}
.btn-soft:hover {
  background: var(--pink-200);
}

.btn-danger {
  background: var(--danger);
  color: #8b2020;
}
.btn-danger:hover {
  background: #ff8a85;
}

.btn-full { width: 100%; }

.btn-large {
  padding: 0.85rem 2.2rem;
  font-size: 1.05rem;
}

/* ---- CARDS ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); }

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.card-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

/* ---- SECTION TITLE ---- */
.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-title em {
  font-style: italic;
  color: var(--accent-dark);
}

/* ---- TOAST NOTIFICATION ---- */
#toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-left: 4px solid var(--accent);
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  z-index: 9999;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
#toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ---- FOOTER ---- */
.footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}

/* ---- UTILITY ---- */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.hidden { display: none !important; }