@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

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

:root {
  --yellow: #FFE033;
  --yellow-dark: #F5C800;
  --black: #0A0A0A;
  --white: #FAFAF7;
  --gray: #1A1A1A;
  --gray-mid: #2E2E2E;
  --gray-light: #888;
  --danger: #ff4d4d;
  --success: #4dff91;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }
body { background: var(--black); color: var(--white); font-family: var(--font-body); font-size: 16px; line-height: 1.6; }
a { color: inherit; text-decoration: none; }

nav.topnav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; display: flex; align-items: center; justify-content: space-between; padding: 1rem 2rem; background: rgba(10,10,10,0.9); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.07); }
.logo { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; letter-spacing: -0.03em; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: var(--gray-light); font-size: 0.875rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--white); }
.nav-user { display: flex; align-items: center; gap: 0.75rem; }
.nav-username { font-size: 0.875rem; color: var(--gray-light); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; padding: 0.65rem 1.25rem; border-radius: 10px; font-family: var(--font-body); font-size: 0.875rem; font-weight: 500; cursor: pointer; border: none; transition: all 0.2s; text-decoration: none; }
.btn-yellow { background: var(--yellow); color: var(--black); }
.btn-yellow:hover { background: var(--yellow-dark); transform: scale(1.02); }
.btn-outline { background: transparent; color: var(--white); border: 1px solid rgba(255,255,255,0.2); }
.btn-outline:hover { border-color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.04); }
.btn-ghost { background: rgba(255,255,255,0.06); color: var(--white); border: 1px solid rgba(255,255,255,0.08); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-danger { background: rgba(255,77,77,0.12); color: var(--danger); border: 1px solid rgba(255,77,77,0.2); }
.btn-danger:hover { background: rgba(255,77,77,0.2); }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.8rem; }
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; border-radius: 100px; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.25rem; }
.form-label { font-size: 0.82rem; font-weight: 500; color: var(--gray-light); letter-spacing: 0.02em; }
.form-input { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; padding: 0.7rem 0.9rem; color: var(--white); font-family: var(--font-body); font-size: 0.9rem; outline: none; transition: border-color 0.2s; width: 100%; }
.form-input:focus { border-color: rgba(255,224,51,0.4); }
.form-input::placeholder { color: var(--gray-light); }
textarea.form-input { resize: vertical; min-height: 100px; line-height: 1.6; }
select.form-input { cursor: pointer; }
select.form-input option { background: var(--gray); }

.toggle { position: relative; width: 44px; height: 24px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; inset: 0; background: var(--gray-mid); border-radius: 24px; cursor: pointer; transition: background 0.2s; }
.toggle-slider::before { content: ''; position: absolute; width: 18px; height: 18px; left: 3px; top: 3px; background: white; border-radius: 50%; transition: transform 0.2s; }
.toggle input:checked + .toggle-slider { background: var(--yellow); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }

.tag { display: inline-block; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--yellow); background: rgba(255,224,51,0.1); padding: 0.2rem 0.6rem; border-radius: 100px; }
.card { background: var(--gray); border: 1px solid rgba(255,255,255,0.07); border-radius: 14px; padding: 1.25rem; transition: border-color 0.2s, transform 0.2s; }
.card:hover { border-color: rgba(255,224,51,0.25); transform: translateY(-2px); }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.75); z-index: 200; display: flex; align-items: center; justify-content: center; padding: 1rem; backdrop-filter: blur(4px); }
.modal { background: var(--gray); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 2rem; width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto; }
.modal h2 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 1.5rem; }

.ad-placeholder { background: rgba(255,255,255,0.03); border: 1px dashed rgba(255,255,255,0.15); border-radius: 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem; color: var(--gray-light); font-size: 0.8rem; min-height: 90px; text-align: center; padding: 1rem; }

.divider { display: flex; align-items: center; gap: 1rem; margin: 1.25rem 0; color: var(--gray-light); font-size: 0.8rem; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: rgba(255,255,255,0.1); }

.toast { position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%); background: var(--gray); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; padding: 0.75rem 1.25rem; font-size: 0.875rem; z-index: 999; animation: toastIn 0.25s ease; white-space: nowrap; }
.toast.error { border-color: rgba(255,77,77,0.4); color: var(--danger); }
.toast.success { border-color: rgba(77,255,145,0.3); color: var(--success); }
@keyframes toastIn { from{opacity:0;transform:translateX(-50%) translateY(10px)}to{opacity:1;transform:translateX(-50%) translateY(0)} }

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

@media (max-width: 640px) {
  nav.topnav { padding: 0.875rem 1rem; }
  .nav-links { gap: 0.75rem; }
}