/* ─── CSS Custom Properties ─────────────────────────────────── */
:root {
  --bg-primary:   #05051a;
  --bg-secondary: #080820;
  --bg-card:      rgba(15, 15, 40, 0.7);
  --bg-glass:     rgba(8, 8, 32, 0.6);
  --clr-indigo:   #6366f1;
  --clr-violet:   #8b5cf6;
  --clr-cyan:     #22d3ee;
  --clr-text:     #f1f5f9;
  --clr-muted:    #64748b;
  --clr-border:   rgba(99, 102, 241, 0.18);
  --clr-border-h: rgba(99, 102, 241, 0.45);
  --gradient:     linear-gradient(135deg, var(--clr-indigo), var(--clr-violet), var(--clr-cyan));
  --gradient-btn: linear-gradient(135deg, var(--clr-indigo) 0%, var(--clr-violet) 100%);
  --shadow-glow:  0 0 40px rgba(99, 102, 241, 0.25);
  --shadow-card:  0 8px 32px rgba(0, 0, 0, 0.5);
  --radius:       16px;
  --radius-sm:    10px;
  --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font:         'Inter', sans-serif;
}

/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--bg-primary);
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: rgba(99, 102, 241, 0.35); color: #fff; }

img { max-width: 100%; display: block; }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

/* ─── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--clr-indigo); border-radius: 3px; }

/* ─── Utility ───────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-cyan);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.25);
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--clr-muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 56px;
}

.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-btn);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.6);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border-h);
}
.btn-ghost:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--clr-indigo);
  transform: translateY(-2px);
}

/* ─── NAV ───────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

#navbar.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
  padding: 14px 0;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 800;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-btn);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-muted);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-btn);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--clr-text); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  padding: 10px 22px;
  font-size: 0.875rem;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-burger span {
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
}

/* ─── FORM CARD (register/login/account/admin pages) ─────────── */
.form-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 24px 80px;
}

.form-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 40px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

.form-card.form-card-wide { max-width: 720px; }

.form-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--clr-text);
}

.form-subtitle {
  font-size: 0.9rem;
  color: var(--clr-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #94a3b8;
  letter-spacing: 0.04em;
}

.form-group label .required {
  color: var(--clr-indigo);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(5, 5, 26, 0.8);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--clr-text);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
  width: 100%;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-indigo);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group input::placeholder { color: var(--clr-muted); }

.form-submit {
  width: 100%;
  padding: 15px;
  background: var(--gradient-btn);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.6);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-footer-link {
  text-align: center;
  margin-top: 24px;
  font-size: 0.85rem;
  color: var(--clr-muted);
}

.form-footer-link a {
  color: var(--clr-cyan);
  font-weight: 600;
}

/* ─── EMPTY / STATUS STATES ─────────────────────────────────── */
.status-box {
  text-align: center;
  padding: 40px 0;
  color: var(--clr-muted);
}

.status-box i { font-size: 2rem; margin-bottom: 16px; display: block; color: var(--clr-indigo); }

/* ─── PENDING USERS LIST (admin) ────────────────────────────── */
.user-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--clr-border);
}
.user-row:last-child { border-bottom: none; }

.user-row .username {
  font-weight: 600;
  color: var(--clr-text);
}

.user-row-actions { display: flex; gap: 8px; }

.btn-sm {
  padding: 8px 18px;
  font-size: 0.82rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--clr-border-h);
  background: transparent;
  color: var(--clr-text);
  transition: var(--transition);
}
.btn-sm:hover { background: rgba(99, 102, 241, 0.1); }

.btn-sm.btn-approve { border-color: rgba(5, 150, 105, 0.5); color: #6ee7b7; }
.btn-sm.btn-approve:hover { background: rgba(5, 150, 105, 0.15); }

.btn-sm.btn-reject { border-color: rgba(220, 38, 38, 0.5); color: #fca5a5; }
.btn-sm.btn-reject:hover { background: rgba(220, 38, 38, 0.15); }

/* ─── TOAST ─────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(20px);
  border: 1px solid;
  font-size: 0.9rem;
  font-weight: 500;
  max-width: 340px;
  pointer-events: all;
  animation: toastIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.toast.success {
  background: rgba(5, 150, 105, 0.15);
  border-color: rgba(5, 150, 105, 0.4);
  color: #6ee7b7;
}

.toast.error {
  background: rgba(220, 38, 38, 0.15);
  border-color: rgba(220, 38, 38, 0.4);
  color: #fca5a5;
}

.toast i { font-size: 1.1rem; flex-shrink: 0; }

.toast.hide { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px) scale(0.95); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(40px); }
}

@keyframes spinLoad { to { transform: rotate(360deg); } }