/* =====================================================================
   ONE Hub – Stylesheet v0.01
   Designsprache: SAP Fiori Horizon + Lufthansa Group 2025
   CI: ONE Green #17ac6c / #1fc97c / #2ee388
   Font: Roboto (CI), 300/400/500/700/900
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&display=swap');

/* ---------------------------------------------------------------------
   Design Tokens
   --------------------------------------------------------------------- */
:root {
  /* Brand */
  --one-primary:        #17ac6c;
  --one-primary-hover:  #1fc97c;
  --one-accent:         #2ee388;
  --one-primary-tint-10: rgba(23, 172, 108, 0.10);
  --one-primary-tint-20: rgba(23, 172, 108, 0.20);
  --one-primary-tint-30: rgba(23, 172, 108, 0.30);
  --one-primary-shadow: 0 12px 32px rgba(23, 172, 108, 0.18);

  /* Surface – Light Theme (Morning Horizon) */
  --bg-page:        #f5f6f7;
  --bg-page-grad:   linear-gradient(180deg, #e9f7ef 0%, #f5f6f7 35%, #f5f6f7 100%);
  --bg-card:        #ffffff;
  --bg-glass:       rgba(255, 255, 255, 0.65);
  --bg-elev:        #fafbfc;
  --bg-input:       #ffffff;
  --bg-table-stripe: #fafbfc;
  --border-subtle:  #e5e7eb;
  --border-strong:  #d0d5db;
  --text-primary:   #1a1d21;
  --text-secondary: #5b6470;
  --text-muted:     #9099a3;
  --text-inverse:   #ffffff;
  --link:           #0d8a55;

  /* Feedback */
  --success:    #15803d;
  --success-bg: #f0fdf4;
  --error:      #b91c1c;
  --error-bg:   #fef2f2;
  --warning:    #b45309;
  --warning-bg: #fffbeb;

  /* Sizing */
  --radius-sm:  6px;
  --radius:     10px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  --shadow-sm:  0 1px 2px rgba(0,0,0,.04);
  --shadow:     0 1px 2px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg:  0 8px 24px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);

  --blur-glass: blur(16px) saturate(140%);

  --header-h:   64px;
}

/* Dark Theme – Evening Horizon */
:root[data-theme="dark"] {
  --bg-page:        #0d1117;
  --bg-page-grad:   linear-gradient(180deg, #0f1f17 0%, #0d1117 35%, #0d1117 100%);
  --bg-card:        #161b22;
  --bg-glass:       rgba(22, 27, 34, 0.72);
  --bg-elev:        #1c2230;
  --bg-input:       #0f1419;
  --bg-table-stripe: #1a2029;
  --border-subtle:  #2a313a;
  --border-strong:  #3a424d;
  --text-primary:   #f0f6fc;
  --text-secondary: #9da7b1;
  --text-muted:     #6e7681;
  --link:           #2ee388;
  --shadow:         0 1px 2px rgba(0,0,0,.5), 0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:      0 8px 24px rgba(0,0,0,.6);
  --success-bg:     #0f2418;
  --error-bg:       #2a1414;
  --warning-bg:     #2a1f0a;
}

/* prefers-reduced-transparency Fallback */
@media (prefers-reduced-transparency: reduce) {
  :root {
    --bg-glass: var(--bg-card);
    --blur-glass: none;
  }
}

/* ---------------------------------------------------------------------
   Reset / Base
   --------------------------------------------------------------------- */
*,*::before,*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { color-scheme: light dark; }
body {
  font-family: 'Roboto', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-page-grad);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.25; margin: 0 0 .5em; color: var(--text-primary); }
h1 { font-size: 1.75rem; letter-spacing: -0.01em; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }
p  { margin: 0 0 1em; }

code { font-family: 'SF Mono', Consolas, 'Liberation Mono', monospace; font-size: .9em;
  background: var(--bg-elev); padding: .1em .35em; border-radius: 4px; }

/* ---------------------------------------------------------------------
   Header / Top Bar
   --------------------------------------------------------------------- */
.shell-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0 1.5rem;
  background: var(--bg-glass);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid var(--border-subtle);
}
.shell-header .brand {
  display: flex; align-items: center; gap: .65rem;
  font-weight: 900; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-primary);
}
.shell-header .brand-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--one-primary), var(--one-accent));
  border-radius: 8px;
  display: grid; place-items: center;
  color: #fff; font-weight: 900; font-size: 1rem;
  box-shadow: var(--one-primary-shadow);
}
.shell-header .nav { display: flex; gap: .25rem; margin-left: 1rem; }
.shell-header .nav a {
  padding: .5rem .9rem; border-radius: 999px;
  color: var(--text-secondary); font-weight: 500;
  transition: background .15s, color .15s;
}
.shell-header .nav a:hover { background: var(--one-primary-tint-10); color: var(--one-primary); text-decoration: none; }
.shell-header .nav a.active { color: var(--one-primary); background: var(--one-primary-tint-10); }
.shell-header .spacer { flex: 1; }
.shell-header .header-actions { display: flex; align-items: center; gap: .5rem; }

.theme-toggle, .icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px;
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border-subtle); border-radius: 50%;
  cursor: pointer; transition: background .15s, color .15s, border-color .15s;
}
.theme-toggle:hover, .icon-btn:hover { color: var(--one-primary); border-color: var(--one-primary); background: var(--one-primary-tint-10); }
.theme-toggle svg, .icon-btn svg { width: 18px; height: 18px; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.user-menu {
  display: flex; align-items: center; gap: .65rem;
  padding: .35rem .35rem .35rem .9rem;
  border: 1px solid var(--border-subtle); border-radius: 999px;
  background: var(--bg-card);
}
.user-menu .name { font-weight: 500; color: var(--text-primary); font-size: .9rem; }
.user-menu .avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, var(--one-primary), var(--one-accent));
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: .8rem;
}
.user-menu form { margin: 0; }
.user-menu .logout-btn {
  background: transparent; border: none; color: var(--text-secondary);
  cursor: pointer; padding: .4rem .6rem; border-radius: 999px; font: inherit;
}
.user-menu .logout-btn:hover { color: var(--error); background: var(--error-bg); }
.admin-badge {
  display: inline-block; padding: .15em .5em; font-size: .65rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  background: var(--one-primary); color: #fff; border-radius: 999px; margin-left: .35rem;
}

/* ---------------------------------------------------------------------
   Layout
   --------------------------------------------------------------------- */
.container { max-width: 1200px; margin: 0 auto; padding: 2rem 1.5rem; }
.container.narrow { max-width: 720px; }
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.page-title { margin: 0; }
.page-subtitle { color: var(--text-secondary); margin: .25rem 0 0; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 1.5rem; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.card-title { font-size: 1.1rem; font-weight: 700; margin: 0; }

/* ---------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .6rem 1.1rem; font: 500 .9rem/1 'Roboto';
  border: 1px solid transparent; border-radius: var(--radius-sm);
  cursor: pointer; text-decoration: none;
  transition: background .15s, border-color .15s, color .15s, transform .1s;
  letter-spacing: .01em;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--one-primary), var(--one-primary-hover));
  color: #fff;
  box-shadow: 0 2px 6px rgba(23,172,108,.25);
}
.btn-primary:hover { filter: brightness(1.05); box-shadow: 0 4px 12px rgba(23,172,108,.35); }

.btn-secondary {
  background: var(--bg-card); color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-secondary:hover { background: var(--bg-elev); border-color: var(--one-primary); color: var(--one-primary); }

.btn-danger {
  background: var(--bg-card); color: var(--error); border-color: #fecaca;
}
.btn-danger:hover { background: var(--error-bg); border-color: var(--error); }

.btn-ghost {
  background: transparent; color: var(--text-secondary); border-color: transparent;
}
.btn-ghost:hover { background: var(--bg-elev); color: var(--text-primary); }

.btn-sm { padding: .35rem .7rem; font-size: .8rem; }

/* ---------------------------------------------------------------------
   Forms
   --------------------------------------------------------------------- */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: .35rem; color: var(--text-primary); }
.form-group .hint { display: block; color: var(--text-muted); font-size: .8rem; margin-top: .35rem; }

input[type=text], input[type=email], input[type=password], input[type=url],
input[type=datetime-local], input[type=number], input[type=color], select, textarea {
  width: 100%;
  padding: .65rem .8rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  font: inherit;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--one-primary);
  box-shadow: 0 0 0 3px var(--one-primary-tint-20);
}
input[type=color] { padding: 0; height: 42px; cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.checkbox-row { display: flex; align-items: center; gap: .5rem; padding: .4rem 0; }
.checkbox-row input[type=checkbox] {
  width: 18px; height: 18px; accent-color: var(--one-primary); cursor: pointer;
}
.checkbox-row label { margin: 0; cursor: pointer; }

.form-actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border-subtle); }

.danger-zone {
  margin-top: 2rem; border: 1px solid #fecaca; background: var(--error-bg);
  border-radius: var(--radius-lg); padding: 1.25rem;
}
.danger-zone h3 { color: var(--error); margin-top: 0; font-size: 1rem; }

/* ---------------------------------------------------------------------
   Flashes
   --------------------------------------------------------------------- */
.flash { padding: .75rem 1rem; border-radius: var(--radius-sm); margin-bottom: 1rem; border: 1px solid transparent; }
.flash-success { background: var(--success-bg); color: var(--success); border-color: #bbf7d0; }
.flash-error   { background: var(--error-bg);   color: var(--error);   border-color: #fecaca; }

/* ---------------------------------------------------------------------
   Tables
   --------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border-subtle); }
table.data { width: 100%; border-collapse: collapse; background: var(--bg-card); font-size: .9rem; }
table.data thead th {
  text-align: left; font-weight: 600; color: var(--text-secondary);
  padding: .75rem 1rem; border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-elev); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em;
}
table.data tbody td { padding: .85rem 1rem; border-bottom: 1px solid var(--border-subtle); color: var(--text-primary); vertical-align: middle; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: var(--one-primary-tint-10); }

.badge { display: inline-block; padding: .15em .55em; font-size: .75rem; font-weight: 600; border-radius: 999px; letter-spacing: .02em; }
.badge-active   { background: var(--success-bg); color: var(--success); }
.badge-locked   { background: var(--error-bg);   color: var(--error); }
.badge-disabled { background: var(--bg-elev);    color: var(--text-muted); }
.badge-pending  { background: var(--warning-bg); color: var(--warning); }
.badge-admin    { background: var(--one-primary); color: #fff; }

/* ---------------------------------------------------------------------
   Hub Launcher (Tile Grid)
   --------------------------------------------------------------------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.tile {
  display: flex; flex-direction: column; gap: .85rem;
  padding: 1.5rem;
  background: var(--bg-glass);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--text-primary);
  transition: transform .25s cubic-bezier(.2,.8,.2,1),
              box-shadow .25s,
              border-color .25s;
  position: relative;
  overflow: hidden;
}
.tile::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--tile-color, var(--one-primary)) 0%, transparent 60%);
  opacity: 0; transition: opacity .25s; pointer-events: none;
}
.tile:hover {
  transform: translateY(-4px);
  border-color: var(--tile-color, var(--one-primary));
  box-shadow: 0 12px 32px var(--one-primary-tint-20), 0 2px 4px rgba(0,0,0,.06);
  text-decoration: none;
}
.tile:hover::before { opacity: .08; }
.tile-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, var(--tile-color, var(--one-primary)), var(--one-accent));
  display: grid; place-items: center; color: #fff; box-shadow: 0 4px 12px var(--one-primary-tint-20);
}
.tile-icon svg { width: 28px; height: 28px; }
.tile-title { font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: 1rem; margin: 0; }
.tile-desc { color: var(--text-secondary); font-size: .85rem; margin: 0; flex: 1; }
.tile-meta { display: flex; align-items: center; gap: .5rem; font-size: .75rem; color: var(--text-muted); }
.tile-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); }

.empty {
  background: var(--bg-card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-secondary);
}
.empty h3 { color: var(--text-primary); }

/* ---------------------------------------------------------------------
   Auth (Login)
   --------------------------------------------------------------------- */
.auth-page {
  min-height: 100vh;
  display: grid; place-items: center;
  background: var(--bg-page-grad);
  padding: 2rem 1rem;
  position: relative;
  overflow: hidden;
}
.auth-page::before, .auth-page::after {
  content:''; position: absolute; border-radius: 50%; filter: blur(80px); opacity: .35; pointer-events: none;
}
.auth-page::before { width: 480px; height: 480px; background: var(--one-accent); top: -100px; right: -100px; }
.auth-page::after  { width: 380px; height: 380px; background: var(--one-primary); bottom: -120px; left: -80px; opacity: .18; }
:root[data-theme="dark"] .auth-page::before { opacity: .12; }
:root[data-theme="dark"] .auth-page::after  { opacity: .08; }

.auth-card {
  position: relative;
  width: 100%; max-width: 440px;
  background: var(--bg-glass);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}
.auth-brand { display: flex; align-items: center; justify-content: center; gap: .75rem; margin-bottom: 2rem; }
.auth-brand .brand-mark {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--one-primary), var(--one-accent));
  border-radius: 12px; display: grid; place-items: center; color: #fff; font-weight: 900; font-size: 1.25rem;
  box-shadow: var(--one-primary-shadow);
}
.auth-brand .brand-text { font-weight: 900; letter-spacing: .18em; font-size: 1.25rem; text-transform: uppercase; }

.auth-card h1 { font-size: 1.5rem; margin-bottom: .25rem; }
.auth-card p.lead { color: var(--text-secondary); margin-bottom: 1.5rem; }
.auth-card .form-actions { border: none; padding-top: 0; margin-top: 1.5rem; }
.auth-card .btn-primary { width: 100%; justify-content: center; padding: .85rem; }

.auth-theme-toggle { position: absolute; top: 1rem; right: 1rem; }

/* ---------------------------------------------------------------------
   Grants block (User-Edit)
   --------------------------------------------------------------------- */
.grants-list { list-style: none; padding: 0; margin: 0 0 1rem; }
.grants-list li {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem .85rem; border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm); margin-bottom: .5rem; background: var(--bg-card);
}
.grants-list .tool-chip {
  display: inline-flex; align-items: center; gap: .4rem;
  font-weight: 600;
}
.grants-list .tool-color {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--chip-color, var(--one-primary));
}
.grants-list .grant-info { flex: 1; color: var(--text-secondary); font-size: .85rem; }
.grants-list form { margin: 0; }

/* ---------------------------------------------------------------------
   Audit Log
   --------------------------------------------------------------------- */
.audit-detail { font-family: 'SF Mono', Consolas, monospace; font-size: .8rem; color: var(--text-secondary); word-break: break-word; }
.audit-action { font-family: 'SF Mono', Consolas, monospace; font-size: .85rem; color: var(--one-primary); font-weight: 600; }

/* ---------------------------------------------------------------------
   Filter / Search Bar
   --------------------------------------------------------------------- */
.toolbar {
  display: flex; gap: .5rem; flex-wrap: wrap; align-items: center;
  margin-bottom: 1.25rem;
}
.toolbar form { display: flex; gap: .5rem; flex-wrap: wrap; }
.toolbar input { min-width: 220px; }

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */
.shell-footer {
  padding: 2rem 1.5rem; text-align: center;
  color: var(--text-muted); font-size: .8rem;
}
.shell-footer strong { color: var(--text-secondary); }