/* NexusSpira — global tokens, reset, shared utilities */

:root {
  /* Brand palette */
  --navy: #0F1F5C;
  --blue: #1A6FBF;
  --teal: #00B8C8;
  --cyan: #6EE7F0;
  --orange: #FF6B35;
  --bg: #FFFFFF;
  --bg2: #F8FAFC;
  --white: #FFFFFF;
  --text: #1C2340;
  --muted: #5B6680;
  --border: #D0DAEA;
  --grad: linear-gradient(135deg, #1A2E6B 0%, #1A6FBF 50%, #00B8C8 100%);
  --grad2: linear-gradient(135deg, #1A6FBF, #00B8C8);
  --shadow: 0 4px 24px rgba(26, 46, 107, 0.10);
  --shadow-md: 0 8px 40px rgba(26, 46, 107, 0.14);

  /* Semantic aliases */
  --clr-primary: var(--navy);
  --clr-secondary: #122272;
  --clr-accent: var(--blue);
  --clr-accent-soft: #3389e0;
  --clr-accent-2: var(--teal);
  --clr-gold: var(--orange);
  --clr-green: #16a34a;
  --clr-bg: var(--bg);
  --clr-bg-alt: var(--bg2);
  --clr-surface: var(--white);
  --clr-surface-raised: var(--white);
  --clr-text-primary: var(--text);
  --clr-text-secondary: var(--muted);
  --clr-text-muted: #7a849c;
  --clr-text-inverse: #f0f5fb;
  --clr-border: var(--border);
  --clr-border-strong: #b0c4db;

  /* Auth aliases */
  --clr-txt: var(--navy);
  --clr-txt-2: var(--text);
  --clr-txt-m: var(--muted);
  --clr-bdr: var(--border);
  --clr-bdr-s: var(--clr-border-strong);

  /* Typography — Inter body / UI, Playfair Display editorial headings */
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-mono: ui-monospace, 'Cascadia Code', monospace;
  --font-d: var(--font-display);
  --font-b: var(--font-body);
  --font-m: var(--font-mono);

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 1.875rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;
  --text-5xl: 3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;

  /* Radius & shadows */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 10px 40px rgba(26, 46, 107, 0.12);
  --shadow-xl: 0 20px 60px rgba(10, 22, 40, 0.16);
  --shadow-accent: 0 4px 14px rgba(26, 111, 191, 0.35);
  --sh-sm: var(--shadow-sm);
  --sh-md: var(--shadow-md);
  --sh-lg: var(--shadow-lg);
  --sh-xl: var(--shadow-xl);
  --sh-acc: 0 8px 28px rgba(26, 111, 191, 0.28);

  /* Motion & z-index */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --z-base: 1;
  --z-raised: 10;
  --z-overlay: 100;
  --z-modal: 1000;
  --z-nav: 9000;
  --z-toast: 9999;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--clr-text-primary);
  background-color: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: var(--font-body);
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-text-primary);
  letter-spacing: -0.02em;
}

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

/* Shared buttons (blog, auth, admin editor) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}

.btn--primary {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-accent);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(26, 111, 191, 0.38);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text-secondary);
  border-color: var(--clr-border);
}

.btn--ghost:hover {
  background: var(--clr-bg-alt);
  border-color: var(--clr-border-strong);
  color: var(--clr-text-primary);
}

.btn--outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--border);
}

.btn--outline:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(26, 111, 191, 0.05);
}

.btn--secondary {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--navy);
}

.btn--secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(26, 111, 191, 0.05);
}

.btn--sm {
  padding: 0.45rem var(--space-4);
  font-size: var(--text-xs);
}

.btn--block {
  width: 100%;
}

/* Utilities */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.text-accent { color: var(--clr-accent); }
.text-muted { color: var(--clr-text-muted); }
.text-center { text-align: center; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 768px) {
  .section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

/* ── Auth pages (login / register / admin-login) ── */
body.site-auth {
  font-family: var(--font-b);
  color: var(--clr-txt);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow-x: hidden;
  background: var(--clr-primary);
  -webkit-font-smoothing: antialiased;
}

body.site-auth h1,
body.site-auth h2 {
  font-family: var(--font-d);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.bg-wrap {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, #0B1845 0%, #122272 55%, #0A3570 100%);
  overflow: hidden;
}
.bg-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
}
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  animation: drift 12s ease-in-out infinite;
}
.bg-glow--1 { width: 500px; height: 500px; background: rgba(0, 184, 200, 0.14); top: -120px; right: -80px; }
.bg-glow--2 { width: 420px; height: 420px; background: rgba(26, 111, 191, 0.12); bottom: -100px; left: -60px; animation-delay: -5s; }
.bg-glow--3 { width: 300px; height: 300px; background: rgba(110, 231, 240, 0.1); top: 50%; left: 30%; animation-delay: -9s; }
@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.06); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

.page {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.card-shell {
  width: 100%;
  max-width: 460px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 2rem;
  text-decoration: none;
  transition: opacity 200ms;
}
.brand:hover { opacity: 0.88; }

.brand__mark {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: block;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  text-align: left;
}

.brand__name {
  font-family: var(--font-d);
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
}
.brand__name em {
  font-style: normal;
  background: linear-gradient(90deg, #00C8D8, #6EE7F0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand__tag {
  font-size: 9px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-top: 3px;
}

.brand.brand--in-panel {
  margin-bottom: 1.5rem;
}
.brand.brand--in-panel .brand__name {
  color: var(--navy);
}
.brand.brand--in-panel .brand__name em {
  -webkit-text-fill-color: transparent;
}
.brand.brand--in-panel .brand__tag {
  color: var(--muted);
}

.panel {
  background: var(--clr-surface);
  border-radius: 24px;
  box-shadow: var(--sh-xl);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(209, 218, 234, 0.6);
}
.panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad);
}

.panel__body { padding: 2.5rem 2.5rem 2rem; }

.panel__eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel__eyebrow::before {
  content: '';
  width: 16px;
  height: 2px;
  background: var(--teal);
  display: block;
  border-radius: 2px;
}

.panel__title {
  font-family: var(--font-d);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--clr-txt);
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.panel--admin .panel__eyebrow { color: var(--teal); }

.form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem; }

.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field__label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--clr-txt-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.field__label-link {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--blue);
  transition: color 150ms, gap 150ms;
  display: flex;
  align-items: center;
  gap: 0.2rem;
}
.field__label-link:hover { color: var(--teal); gap: 0.35rem; }

.input-wrap { position: relative; }
.input-wrap input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border: 1.5px solid var(--clr-bdr);
  border-radius: 10px;
  font-size: 0.9375rem;
  color: var(--clr-txt);
  background: var(--clr-bg);
  outline: none;
  transition: border-color 180ms, box-shadow 180ms, background 180ms;
  line-height: 1;
}
.input-wrap input::placeholder { color: var(--clr-txt-m); }
.input-wrap input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3.5px rgba(0, 184, 200, 0.14);
  background: var(--clr-surface);
}
.input-wrap input.error {
  border-color: var(--orange);
  box-shadow: 0 0 0 3.5px rgba(255, 107, 53, 0.12);
}
.input-wrap input.success {
  border-color: var(--clr-green);
  box-shadow: 0 0 0 3.5px rgba(22, 163, 74, 0.1);
}

.input-wrap__icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-txt-m);
  pointer-events: none;
  transition: color 180ms;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.input-wrap:focus-within .input-wrap__icon { color: var(--blue); }

.pw-toggle {
  position: absolute;
  right: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-txt-m);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: color 150ms;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pw-toggle:hover { color: var(--clr-txt); }
.input-wrap.has-toggle input { padding-right: 2.75rem; }

.field__msg {
  font-size: 0.72rem;
  font-weight: 500;
  min-height: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.field__msg.error { color: var(--orange); }
.field__msg.success { color: var(--clr-green); }
.field__msg.hint { color: var(--clr-txt-m); }

.pw-strength { margin-top: 0.1rem; }
.pw-strength__track { height: 4px; background: var(--clr-bdr); border-radius: 4px; overflow: hidden; margin-bottom: 0.3rem; }
.pw-strength__fill { height: 100%; border-radius: 4px; transition: width 0.4s ease, background 0.4s ease; width: 0; }
.pw-strength__text { font-size: 0.68rem; font-weight: 600; color: var(--clr-txt-m); }

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-b);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: 0.875rem 1.5rem;
  border-radius: 12px;
  cursor: pointer;
  transition: all 260ms cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 2px solid transparent;
  line-height: 1;
  position: relative;
  overflow: hidden;
}
.btn--primary {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--sh-acc);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(26, 111, 191, 0.38);
}
.btn--primary:active { transform: translateY(0); }
.btn--primary.loading { pointer-events: none; opacity: 0.8; }

.btn__spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  display: none;
}
.btn.loading .btn__spinner { display: block; }
.btn.loading .btn__text { opacity: 0.7; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn--ghost {
  background: transparent;
  color: var(--clr-txt-2);
  border: 2px solid var(--clr-bdr);
}
.btn--ghost:hover {
  background: var(--clr-bg-alt);
  border-color: var(--clr-bdr-s);
  transform: translateY(-1px);
}

.btn-group { display: flex; gap: 0.75rem; margin-top: 0.5rem; }
.btn-group .btn { flex: 1; }

.panel__footer {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-bdr);
  padding: 1.1rem 2.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--clr-txt-m);
}
.panel__footer a {
  color: var(--blue);
  font-weight: 700;
  border-bottom: 1.5px solid transparent;
  transition: border-color 150ms, color 150ms;
}
.panel__footer a:hover { color: var(--teal); border-bottom-color: var(--teal); }

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--navy);
  color: #fff;
  padding: 0.875rem 1.5rem;
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--sh-xl);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity 300ms;
  opacity: 0;
  white-space: nowrap;
  max-width: 90vw;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.toast--success { background: var(--clr-green); }
.toast.toast--error { background: #dc2626; }
.toast__icon { font-size: 1.1rem; flex-shrink: 0; }

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 8000;
  background: rgba(11, 24, 69, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--clr-surface);
  border-radius: 20px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--sh-xl);
  overflow: hidden;
  transform: scale(0.94) translateY(12px);
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  border: 1px solid var(--clr-bdr);
}
.modal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal__body { padding: 2rem 2rem 1.75rem; }
.modal__close {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--clr-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--clr-txt-m);
  cursor: pointer;
  transition: all 150ms;
}
.modal__close:hover { background: var(--blue); color: #fff; }
.modal__title {
  font-family: var(--font-d);
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
}
.modal__sub {
  font-size: 0.85rem;
  color: var(--clr-txt-m);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.modal__footer {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-bdr);
  padding: 0.875rem 2rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--clr-txt-m);
}
.modal__field { margin-bottom: 1.25rem; }
.btn--block { width: 100%; }

.terms-row {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--clr-txt-2);
  line-height: 1.55;
}
.terms-row input {
  margin-top: 3px;
  accent-color: var(--blue);
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}
.terms-row a {
  color: var(--blue);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms;
}
.terms-row a:hover { border-bottom-color: var(--blue); }

@media (max-width: 500px) {
  .card-shell { max-width: 100%; }
  .panel__body { padding: 2rem 1.5rem 1.75rem; }
  .panel__footer { padding: 0.875rem 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .brand__name { font-size: 1.2rem; }
  .panel__title { font-size: 1.5rem; }
}