/* =========================================================
   Core Theme Variables
========================================================= */

:root {
  color-scheme: dark;

  --color-primary: #132f7c;
  --color-primary-deep: #071536;
  --color-primary-soft: #1f4db8;

  --color-secondary: #20bdbe;
  --color-secondary-soft: #7ff4f2;
  --color-secondary-muted: rgba(32, 189, 190, 0.22);

  --color-accent: #8eeaff;
  --color-accent-strong: #36d9ff;

  --color-bg: #071536;
  --color-bg-elevated: rgba(9, 24, 58, 0.72);
  --color-bg-card: rgba(255, 255, 255, 0.075);
  --color-bg-subtle: rgba(255, 255, 255, 0.045);

  --color-text: #eef8ff;
  --color-text-muted: rgba(238, 248, 255, 0.72);
  --color-text-faint: rgba(238, 248, 255, 0.52);

  --color-border: rgba(255, 255, 255, 0.14);
  --color-border-strong: rgba(255, 255, 255, 0.22);

  --shadow-soft: 0 18px 60px rgba(0, 0, 0, 0.28);
  --shadow-card: 0 12px 38px rgba(0, 0, 0, 0.22);
  --shadow-small: 0 8px 20px rgba(0, 0, 0, 0.18);

  --glass-blur: 18px;
  --glass-blur-soft: 12px;

  --radius-xs: 0.45rem;
  --radius-sm: 0.65rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;

  --page-max-width: 1180px;
  --space-page: clamp(0.85rem, 2vw, 2rem);
  --header-height: 4.25rem;

  --font-eyebrow: 0.78rem;
  --font-title: clamp(2rem, 5vw, 4.25rem);
  --font-heading: clamp(1.25rem, 2vw, 1.8rem);
  --font-subtitle: clamp(1rem, 1.5vw, 1.18rem);

  --transition-fast: 140ms ease;
  --transition-med: 220ms ease;

  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}


/* =========================================================
   Reset / Base
========================================================= */

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

html {
  min-height: 100%;
  background: var(--color-bg);
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

html,
body {
  min-height: 100%;
}

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

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

::selection {
  color: white;
  background: color-mix(in srgb, var(--color-secondary) 58%, transparent);
}


/* =========================================================
   App Shell
========================================================= */

.core-app-shell,
#app-shell {
  position: relative;
  z-index: 1;
  min-height: 100dvh;

  padding:
    max(var(--space-page), env(safe-area-inset-top))
    max(var(--space-page), env(safe-area-inset-right))
    max(var(--space-page), env(safe-area-inset-bottom))
    max(var(--space-page), env(safe-area-inset-left));
}

.app-header {
  width: min(var(--page-max-width), 100%);
  min-height: var(--header-height);
  margin-inline: auto;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;

  padding: 0.85rem 1rem;
  border-radius: var(--radius-xl);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-icon {
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
}

.brand-text {
  overflow: hidden;
  font-size: 1.05rem;
  font-weight: 780;
  letter-spacing: -0.025em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.auth-root {
  width: min(var(--page-max-width), 100%);
  margin: 1rem auto 0;
}

.app-view {
  width: min(var(--page-max-width), 100%);
  margin: 1.25rem auto 0;
  padding: clamp(1rem, 2vw, 1.5rem);
  border-radius: var(--radius-xl);
}


/* =========================================================
   Reusable Glass UI
========================================================= */

.glass {
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.glass-card {
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(var(--glass-blur-soft));
  -webkit-backdrop-filter: blur(var(--glass-blur-soft));
}

.glass-panel {
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.glass-subtle {
  border: 1px solid color-mix(in srgb, var(--color-border) 70%, transparent);
  background: var(--color-bg-subtle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.glass,
.glass-card,
.glass-panel,
.glass-subtle {
  position: relative;
  overflow: hidden;
}

.glass::before,
.glass-card::before,
.glass-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.14),
      transparent 34%,
      rgba(255, 255, 255, 0.035)
    );
  opacity: var(--glass-highlight-opacity, 0.55);
}


/* =========================================================
   Layout Utilities
========================================================= */

.core-page {
  width: min(var(--page-max-width), 100%);
  margin-inline: auto;
}

.core-stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, 1rem);
}

.core-row {
  display: flex;
  align-items: center;
  gap: var(--row-gap, 0.75rem);
  flex-wrap: wrap;
}

.core-grid {
  display: grid;
  grid-template-columns:
    repeat(
      auto-fit,
      minmax(min(100%, var(--grid-min, 260px)), 1fr)
    );
  gap: var(--grid-gap, 1rem);
}

.core-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.38fr);
  gap: var(--split-gap, 1rem);
}

.core-center {
  display: grid;
  place-items: center;
}

.core-section {
  padding: var(--section-padding, clamp(1rem, 2vw, 1.5rem));
}

.core-container {
  padding: var(--container-padding, clamp(1rem, 2vw, 1.5rem));
  border-radius: var(--radius-xl);
}

.core-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  flex-wrap: wrap;
}


/* =========================================================
   Typography
========================================================= */

.core-eyebrow {
  margin: 0 0 0.35rem;
  color: var(--color-secondary-soft);
  font-size: var(--font-eyebrow);
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.core-title {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-title);
  line-height: 0.98;
  font-weight: 860;
  letter-spacing: -0.06em;
}

.core-subtitle {
  max-width: 70ch;
  margin: 0.85rem 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-subtitle);
  line-height: 1.65;
}

.core-heading {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-heading);
  line-height: 1.15;
  font-weight: 820;
  letter-spacing: -0.04em;
}

.core-card-title {
  margin: 0;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 820;
  letter-spacing: -0.025em;
}

.core-card-body {
  margin-top: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.core-text-muted {
  color: var(--color-text-muted);
}

.core-text-faint {
  color: var(--color-text-faint);
}


/* =========================================================
   Buttons / Controls
========================================================= */

.core-button,
.app-nav a,
.app-nav button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;

  min-height: 2.55rem;
  padding: 0.65rem 1rem;

  border: 1px solid color-mix(in srgb, var(--color-secondary) 38%, transparent);
  border-radius: var(--radius-md);

  color: var(--button-text, #ffffff);
  background:
    linear-gradient(
      135deg,
      var(--color-primary-soft),
      var(--color-secondary)
    );

  box-shadow: var(--shadow-small);

  font-weight: 760;
  cursor: pointer;

  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    opacity var(--transition-fast),
    background var(--transition-fast);
}

.core-button:hover,
.app-nav a:hover,
.app-nav button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.core-button:active,
.app-nav a:active,
.app-nav button:active {
  transform: translateY(0);
}

.core-button.secondary,
.app-nav a.secondary,
.app-nav button.secondary {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.075);
}

.core-button.ghost {
  color: var(--color-text);
  background: transparent;
  box-shadow: none;
}

.core-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.core-input,
.core-select,
.core-textarea {
  width: 100%;
  min-height: 2.65rem;
  padding: 0.7rem 0.85rem;

  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);

  color: var(--color-text);
  background: rgba(255, 255, 255, 0.07);

  outline: none;

  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

.core-textarea {
  min-height: 7rem;
  resize: vertical;
}

.core-input::placeholder,
.core-textarea::placeholder {
  color: var(--color-text-faint);
}

.core-input:focus,
.core-select:focus,
.core-textarea:focus {
  border-color: color-mix(in srgb, var(--color-secondary) 70%, white);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-secondary) 24%, transparent);
  background: rgba(255, 255, 255, 0.095);
}


/* =========================================================
   Common SPA Blocks
========================================================= */

.core-hero {
  padding: clamp(1.25rem, 4vw, 3rem);
  border-radius: var(--radius-xl);
}

.core-dashboard {
  display: grid;
  gap: 1rem;
}

.core-kpi {
  display: grid;
  gap: 0.35rem;
}

.core-kpi-value {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1;
  font-weight: 850;
  letter-spacing: -0.055em;
}

.core-kpi-label {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}


/* =========================================================
   Accessibility / Focus
========================================================= */

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-secondary) 70%, white);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}


/* =========================================================
   Multi-Device Support
========================================================= */

@supports not (height: 100dvh) {
  body {
    min-height: 100vh;
  }

  .core-app-shell,
  #app-shell {
    min-height: 100vh;
  }
}

@media (max-width: 900px) {
  :root {
    --page-max-width: 100%;
  }

  .core-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .app-header {
    align-items: stretch;
    flex-direction: column;
  }

  .brand {
    justify-content: center;
  }

  .app-nav {
    justify-content: center;
  }

  .core-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .core-button {
    width: 100%;
  }

  .app-view {
    margin-top: 1rem;
  }
}

@media (max-width: 460px) {
  :root {
    --space-page: 0.75rem;
    --radius-xl: 1.35rem;
    --radius-lg: 1.1rem;
    --font-title: clamp(1.75rem, 12vw, 3rem);
  }

  .app-header,
  .app-view {
    border-radius: var(--radius-xl);
  }

  .core-hero {
    padding: 1rem;
  }

  .brand-text {
    font-size: 1rem;
  }
}

@media (pointer: coarse) {
  .core-button,
  .app-nav a,
  .app-nav button {
    min-height: 2.9rem;
  }

  .core-input,
  .core-select {
    min-height: 3rem;
  }
}

/* =========================================================
   Modal System
========================================================= */

.core-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;

  display: grid;
  place-items: center;

  padding:
    max(1rem, env(safe-area-inset-top))
    max(1rem, env(safe-area-inset-right))
    max(1rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));

  background:
    radial-gradient(
      circle at 35% 20%,
      color-mix(in srgb, var(--color-secondary) 18%, transparent),
      transparent 28rem
    ),
    radial-gradient(
      circle at 80% 80%,
      color-mix(in srgb, var(--color-primary-soft) 18%, transparent),
      transparent 30rem
    ),
    rgba(0, 0, 0, 0.48);

  backdrop-filter: blur(14px) saturate(1.12);
  -webkit-backdrop-filter: blur(14px) saturate(1.12);
}

.core-modal {
  position: relative;

  width: min(var(--modal-width, 640px), 100%);
  max-height: min(780px, calc(100dvh - 2rem));

  display: flex;
  flex-direction: column;

  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);

  background: var(--color-bg-card);
  box-shadow: var(--shadow-soft);

  backdrop-filter: blur(var(--glass-blur-soft)) saturate(1.12);
  -webkit-backdrop-filter: blur(var(--glass-blur-soft)) saturate(1.12);

  overflow: hidden;
}

.core-modal::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;

  background:
    linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.14),
      transparent 34%,
      rgba(255, 255, 255, 0.035)
    );

  opacity: var(--glass-highlight-opacity, 0.55);
}

.core-modal-header,
.core-modal-footer {
  position: relative;
  z-index: 1;

  flex: 0 0 auto;
  padding: 1rem 1.15rem;

  background: rgba(255, 255, 255, 0.035);
}
.core-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;

  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 78%, transparent);
}

.core-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
  flex-wrap: wrap;

  border-top: 1px solid color-mix(in srgb, var(--color-border) 78%, transparent);
}

.core-modal-body {
  position: relative;
  z-index: 1;

  flex: 1 1 auto;
  min-height: 0;

  padding: 1.15rem;

  overflow: auto;
  overscroll-behavior: contain;
}

.core-modal-title {
  margin: 0;

  color: var(--color-text);

  font-size: 1.15rem;
  font-weight: 820;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.core-modal-subtitle {
  margin: 0.35rem 0 0;

  color: var(--color-text-muted);

  font-size: 0.95rem;
  line-height: 1.45;
}

.core-modal-close {
  width: 2.35rem;
  height: 2.35rem;
  flex: 0 0 auto;

  display: inline-grid;
  place-items: center;

  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);

  color: var(--color-text);
  background: rgba(255, 255, 255, 0.075);

  box-shadow: var(--shadow-small);

  cursor: pointer;

  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.core-modal-close:hover {
  transform: translateY(-1px);
  border-color: var(--color-border-strong);
  background: rgba(255, 255, 255, 0.12);
}

.core-modal-close:active {
  transform: translateY(0);
}

body.core-modal-open {
  overflow: hidden;
}

@supports not (height: 100dvh) {
  .core-modal {
    max-height: min(780px, calc(100vh - 2rem));
  }
}

@media (max-width: 560px) {
  .core-modal-backdrop {
    place-items: center;

    padding:
      max(0.75rem, env(safe-area-inset-top))
      max(0.75rem, env(safe-area-inset-right))
      max(0.75rem, env(safe-area-inset-bottom))
      max(0.75rem, env(safe-area-inset-left));
  }

  .core-modal {
    width: min(100%, 100%);
    max-height: calc(100dvh - 1.5rem);

    border-radius: var(--radius-xl);
  }

  .core-modal-footer {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .core-modal-footer .core-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .core-modal-close {
    transition: none;
  }
}

/* =========================================================
   Modal Content Layout Utilities
========================================================= */

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

.core-modal.md {
  --modal-width: 640px;
}

.core-modal.lg {
  --modal-width: 860px;
}

.core-modal.xl {
  --modal-width: 1080px;
}

.core-modal.full {
  --modal-width: min(1280px, 100%);
  height: min(880px, calc(100dvh - 2rem));
}

.core-modal-body.flush {
  padding: 0;
}

.core-modal-body.compact {
  padding: 0.75rem;
}

.core-modal-body.spacious {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.core-modal-stack {
  display: flex;
  flex-direction: column;
  gap: var(--modal-stack-gap, 1rem);
}

.core-modal-grid {
  display: grid;
  grid-template-columns:
    repeat(
      auto-fit,
      minmax(min(100%, var(--modal-grid-min, 220px)), 1fr)
    );
  gap: var(--modal-grid-gap, 1rem);
}

.core-modal-form {
  display: grid;
  gap: var(--modal-form-gap, 1rem);
}

.core-modal-field {
  display: grid;
  gap: 0.4rem;
}

.core-modal-label {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  font-weight: 720;
}

.core-modal-help {
  margin: 0;
  color: var(--color-text-faint);
  font-size: 0.82rem;
  line-height: 1.45;
}

.core-modal-table-wrap {
  width: 100%;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
}

.core-modal-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

.core-modal-table th,
.core-modal-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 68%, transparent);
  text-align: left;
  vertical-align: top;
}

.core-modal-table th {
  position: sticky;
  top: 0;
  z-index: 2;

  color: var(--color-text);
  background: color-mix(in srgb, var(--color-primary-deep) 82%, black);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.core-modal-table tr:last-child td {
  border-bottom: 0;
}

.core-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.core-modal-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.38fr);
  gap: 1rem;
}

@media (max-width: 720px) {
  .core-modal-split {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   Print
========================================================= */

@media print {
  body {
    color: #111;
    background: #fff;
  }

  #core-background,
  .app-header {
    display: none !important;
  }

  .core-app-shell,
  #app-shell,
  .app-view {
    min-height: auto;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
    background: transparent;
  }
}