/* ══════════════════════════════════════════════
   DR Shinde Education — Global Styles
   ══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

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

:root {
  /* ── Color Palette ── */
  --navy: #0d2555;
  --navy-dark: #081a3d;
  --navy-light: #1a3a72;
  --navy-ultra: #061430;

  --gold: #c9a227;
  --gold-light: #e8c246;
  --gold-pale: #fdf6e3;
  --gold-dim: rgba(201, 162, 39, 0.12);

  --white: #ffffff;
  --off-white: #f8f9fc;
  --text: #1a2340;
  --muted: #5a6480;

  --border: #dde3f0;
  --border-light: #eef2fa;
  --success: #1a7f54;
  --success-bg: #e8f8f0;
  --danger: #c0392b;
  --danger-bg: #fff3f3;
  --info: #2563eb;
  --info-bg: #eef2ff;

  /* ── Sizing ── */
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 6px;

  /* ── Shadows ── */
  --shadow-sm: 0 2px 8px rgba(13, 37, 85, 0.04);
  --shadow-md: 0 4px 16px rgba(13, 37, 85, 0.08);
  --shadow-lg: 0 8px 32px rgba(13, 37, 85, 0.12);
  --shadow-xl: 0 16px 48px rgba(13, 37, 85, 0.16);

  /* ── Transitions ── */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
  background: var(--off-white);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ── Navigation ── */
.topnav {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 18px 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--off-white);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.login-body .topnav {
  background: transparent;
}

.nav-btn {
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--muted);
  padding: 9px 24px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-btn.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
  box-shadow: 0 4px 12px rgba(13, 37, 85, 0.25);
}

.nav-btn:hover:not(.active) {
  border-color: var(--navy);
  color: var(--navy);
  background: rgba(13, 37, 85, 0.03);
  transform: translateY(-1px);
}

/* ── Toast Notification ── */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--navy);
  color: var(--white);
  padding: 14px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10000;
  opacity: 0;
  transition: all 0.4s var(--ease);
  box-shadow: var(--shadow-lg);
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: var(--success);
}

.toast.error {
  background: var(--danger);
}

/* ── Modal System ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 26, 61, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
  padding: 20px;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--white);
  border-radius: var(--radius);
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  transform: scale(0.92) translateY(20px);
  transition: transform 0.35s var(--ease);
  overflow: hidden;
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal.modal-sm {
  max-width: 420px;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--off-white);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-cancel {
  padding: 10px 20px;
  background: transparent;
  color: var(--muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}

.modal-cancel:hover {
  border-color: var(--navy);
  color: var(--navy);
}

.modal-save {
  padding: 10px 22px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.modal-save:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13, 37, 85, 0.2);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* ── Responsive ── */
@media (max-width: 500px) {
  .topnav {
    padding: 12px 12px 0;
    gap: 6px;
  }
  .nav-btn {
    padding: 8px 16px;
    font-size: 12px;
  }
}