/*
  Voklo Design System
  ===================
  Gemeinsames, eigenständiges Design-System für alle drei Voklo-Teilprojekte
  (voklo.de, cdn.voklo.de, dash.voklo.de). Diese Datei ist bewusst framework-frei
  gehalten (kein Bootstrap/Tailwind) und wird identisch in alle drei Projekte
  kopiert, damit sich jede Subdomain wie dieselbe Marke anfühlt.

  Aufbau:
  1. Tokens (Farben, Typografie, Spacing, Radius, Schatten, Transitions)
  2. Reset & Basiselemente
  3. Layout-Hilfen
  4. Komponenten (Buttons, Formulare, Cards, Navbar, Avatar, Badges, Alerts,
     Modals, Bild-Grid)
  5. Utility-Klassen
  6. Responsive Anpassungen
*/

/* ==========================================================================
   1. Tokens
   ========================================================================== */
:root {
  /* Marken-Farbpalette – warmes, papierartiges Neutral + das Korallenorange
     aus dem Voklo-Logo (#FE6244). Bewusst kein Bootstrap-Blau/-Grau, sondern
     ein eigenständiges, fotografie-affines Farbschema. */
  --color-bg:            #FAF8F4;
  --color-bg-alt:        #F2EFE8;
  --color-surface:       #FFFFFF;
  --color-surface-alt:   #F5F3EE;
  --color-border:        #E7E2D8;
  --color-border-strong: #D8D2C4;

  --color-ink:           #1C1A17;
  --color-ink-soft:      #5B5548;
  --color-ink-faint:     #8B8474;

  --color-accent:        #FE6244;  /* Logo-Orange – Buttons, Icons, Markenflächen */
  --color-accent-hover:  #FE3F1B;  /* Hover-Zustand für Flächen mit --color-accent */
  --color-accent-text:   #D52301;  /* AA-kontraststarke Variante für Links/Text auf hellem Grund */
  --color-accent-soft:   #FCE7E0;  /* Tint für Badges/Hover-Flächen */

  --color-ink-btn:       #1C1A17;  /* Dunkle Sekundär-Buttons (wie Instagram-Schwarz) */
  --color-ink-btn-hover: #35322C;

  --color-success:       #3F7A57;
  --color-success-soft:  #E4EFE7;
  --color-danger:        #B23B2E;
  --color-danger-soft:   #F5E3DF;
  --color-warning:       #B8862E;
  --color-warning-soft:  #F5EBDA;

  --color-verified:      #2F6FB0;  /* Verifizierungs-Badge (bewusst einzige "kühle" Farbe) */

  /* Typografie – Framework-freier System-Stack, keine externen Font-Requests nötig */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-serif-display: Georgia, "Iowan Old Style", "Times New Roman", serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.8125rem;
  --fs-base: 0.9375rem;
  --fs-md:   1.0625rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.625rem;
  --fs-2xl:  2.125rem;
  --fs-3xl:  2.75rem;

  --lh-tight: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* Spacing-Skala (4px-Basis) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.5rem;
  --space-6:  2rem;
  --space-7:  2.5rem;
  --space-8:  3rem;
  --space-9:  4rem;
  --space-10: 5rem;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  22px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(28, 26, 23, 0.06);
  --shadow-md: 0 4px 16px rgba(28, 26, 23, 0.08);
  --shadow-lg: 0 12px 32px rgba(28, 26, 23, 0.12);
  --shadow-focus: 0 0 0 3px rgba(189, 91, 58, 0.25);

  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 320ms cubic-bezier(0.22, 1, 0.36, 1);

  --container-width: 1080px;
  --container-narrow: 640px;
}

/* ==========================================================================
   2. Reset & Basiselemente
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-3);
  line-height: var(--lh-tight);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--space-4); }

a {
  color: var(--color-accent-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-accent-hover); }

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

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

ul, ol { margin: 0; padding: 0; list-style: none; }

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

::selection {
  background: var(--color-accent-soft);
  color: var(--color-ink);
}

/* ==========================================================================
   3. Layout-Hilfen
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* ==========================================================================
   4. Komponenten
   ========================================================================== */

/* --- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: #fff; }

.btn-dark {
  background: var(--color-ink-btn);
  border-color: var(--color-ink-btn);
  color: #fff;
}
.btn-dark:hover { background: var(--color-ink-btn-hover); color: #fff; }

.btn-secondary {
  background: var(--color-surface);
  border-color: var(--color-border-strong);
  color: var(--color-ink);
}
.btn-secondary:hover { background: var(--color-surface-alt); color: var(--color-ink); }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--color-ink-soft);
}
.btn-ghost:hover { background: var(--color-surface-alt); color: var(--color-ink); }

.btn-danger {
  background: var(--color-danger-soft);
  border-color: var(--color-danger-soft);
  color: var(--color-danger);
}
.btn-danger:hover { background: var(--color-danger); border-color: var(--color-danger); color: #fff; }

.btn-sm { padding: 0.4rem 0.85rem; font-size: var(--fs-xs); border-radius: var(--radius-sm); }
.btn-lg { padding: 0.85rem 1.75rem; font-size: var(--fs-md); border-radius: var(--radius-lg); }
.btn-full { width: 100%; }
.btn-icon { padding: 0.55rem; border-radius: var(--radius-full); }

/* --- Formulare -------------------------------------------------------------- */
.field {
  margin-bottom: var(--space-5);
}

.field label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.field .hint {
  font-size: var(--fs-xs);
  color: var(--color-ink-faint);
  margin-top: var(--space-1);
}

.field .error-text {
  font-size: var(--fs-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="date"],
input[type="search"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: var(--fs-base);
  color: var(--color-ink);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea { resize: vertical; min-height: 6rem; }

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}

input.has-error, textarea.has-error {
  border-color: var(--color-danger);
}

input::placeholder, textarea::placeholder {
  color: var(--color-ink-faint);
}

/* --- Cards -------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.card-hover {
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.card-hover:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* --- Avatar -------------------------------------------------------------- */
.avatar {
  border-radius: var(--radius-full);
  object-fit: cover;
  background: var(--color-surface-alt);
  flex-shrink: 0;
}
.avatar-xs { width: 28px; height: 28px; }
.avatar-sm { width: 36px; height: 36px; }
.avatar-md { width: 48px; height: 48px; }
.avatar-lg { width: 88px; height: 88px; }
.avatar-xl { width: 128px; height: 128px; }

/* --- Badges / Pills -------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
}
.badge-accent  { background: var(--color-accent-soft); color: var(--color-accent-text); }
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-soft); color: var(--color-danger); }
.badge-verified {
  background: rgba(47, 111, 176, 0.12);
  color: var(--color-verified);
}

/* --- Alerts / Flash-Messages -------------------------------------------------------------- */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-5);
  border: 1px solid transparent;
}
.alert-success { background: var(--color-success-soft); color: var(--color-success); border-color: rgba(63, 122, 87, 0.2); }
.alert-danger  { background: var(--color-danger-soft); color: var(--color-danger); border-color: rgba(178, 59, 46, 0.2); }
.alert-info    { background: var(--color-surface-alt); color: var(--color-ink-soft); border-color: var(--color-border); }

/* --- Navbar -------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(250, 248, 244, 0.9);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.navbar-inner {
  max-width: var(--container-width);
  margin-inline: auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.navbar-brand {
  display: flex;
  align-items: center;
  font-family: var(--font-serif-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}
.navbar-brand:hover { color: var(--color-ink); }

/* Logo-Bild in der Navbar (Icon + Wortmarke aus assets/img/logo.png) */
.navbar-brand img {
  height: 26px;
  width: auto;
  display: block;
}

/* Nur die Bildmarke (assets/img/icon.png), z. B. auf sehr schmalen Screens */
.brand-icon {
  height: 28px;
  width: auto;
  display: block;
}

.navbar-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-4) var(--space-5);
}

.navbar-links a {
  color: var(--color-ink-soft);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
}
.navbar-links a:hover, .navbar-links a.active { color: var(--color-ink); }

/* Kleiner, dezenter roter Punkt für ungelesene Benachrichtigungen (z. B. Nachrichten) */
.nav-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  margin-left: 3px;
  vertical-align: middle;
}

/* --- Modal / Dialog -------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(28, 26, 23, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  z-index: 100;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  width: 100%;
  max-width: 440px;
  animation: modal-in var(--transition-slow);
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* --- Bild-Grid (Feed / Portfolio) -------------------------------------------------------------- */
.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-1);
}

.image-grid a, .image-grid .grid-item {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
}

.image-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.image-grid a:hover img { transform: scale(1.04); }

/* --- Post-Karte (Feed) -------------------------------------------------------------- */
.post-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.post-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
}

.post-card-image {
  position: relative;
  display: block;
  width: 100%;
  background: var(--color-surface-alt);
}

.post-card-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Mehrbild-Karussell (Post-Detail/Feed) -------------------------------------------------------------- */
.post-carousel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  background: var(--color-surface-alt);
}

.post-carousel img {
  flex: 0 0 100%;
  scroll-snap-align: start;
  width: 100%;
  height: auto;
  display: block;
}

.post-carousel::-webkit-scrollbar {
  display: none;
}

/* Kleines Stapel-Symbol oben rechts auf Grid-/Feed-Thumbnails mit mehreren Bildern */
.multi-image-indicator {
  position: absolute;
  top: 8px;
  right: 8px;
  color: #fff;
  font-size: var(--fs-md);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  line-height: 1;
}

.post-card-body {
  padding: var(--space-4) var(--space-5) var(--space-5);
}

.post-card-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5) 0;
}

/* ==========================================================================
   5. Utility-Klassen
   ========================================================================== */
.text-muted   { color: var(--color-ink-soft); }
.text-faint   { color: var(--color-ink-faint); }
.text-accent  { color: var(--color-accent-text); }
.text-center  { text-align: center; }
.text-sm      { font-size: var(--fs-sm); }
.text-xs      { font-size: var(--fs-xs); }
.font-serif   { font-family: var(--font-serif-display); }
.truncate     { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.mt-1 { margin-top: var(--space-1); } .mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); } .mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); } .mt-6 { margin-top: var(--space-6); }
.mb-0 { margin-bottom: 0; }

.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;
}

.empty-state {
  text-align: center;
  padding: var(--space-9) var(--space-5);
  color: var(--color-ink-soft);
}

.empty-state h3 { color: var(--color-ink); margin-bottom: var(--space-2); }

/* ==========================================================================
   6. Responsive
   ========================================================================== */
@media (max-width: 720px) {
  :root {
    --fs-3xl: 2.125rem;
    --fs-2xl: 1.75rem;
  }

  .navbar-links { gap: var(--space-3); }
  .container, .container-narrow { padding-inline: var(--space-4); }
  .card { padding: var(--space-4); }
  .post-card-header, .post-card-body, .post-card-actions { padding-left: var(--space-4); padding-right: var(--space-4); }
}

@media (max-width: 480px) {
  .image-grid { gap: 2px; }
  .modal { padding: var(--space-5); }
}