/* ═══════════════════════════════════════════════════════════
   OpenBanner — Base Styles (Light Mode Redesign)
   ═══════════════════════════════════════════════════════════ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--ob-font-sans);
  font-size: var(--ob-text-base);
  font-weight: var(--ob-weight-normal);
  line-height: var(--ob-leading-normal);
  color: var(--ob-text-primary);
  background: var(--ob-bg-deep);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

a { color: var(--ob-accent-lime); text-decoration: none; }
a:hover { text-decoration: underline; }

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

ul, ol { list-style: none; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--ob-border-strong);
  border-radius: var(--ob-radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--ob-text-tertiary); }

/* ── App Layout ── */
.app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background: var(--ob-bg-deep);
}

/* ── Far Left Slim Nav ── */
.slim-nav {
  width: 64px;
  background: var(--ob-bg-base);
  border-right: 1px solid var(--ob-border-default);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--ob-space-4) 0;
  z-index: var(--ob-z-toolbar);
  flex-shrink: 0;
}

.slim-nav__logo {
  width: 40px;
  height: 40px;
  background: var(--ob-accent-lime);
  color: var(--ob-text-inverse);
  border-radius: var(--ob-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--ob-weight-bold);
  font-size: var(--ob-text-lg);
  margin-bottom: var(--ob-space-6);
  user-select: none;
}

.slim-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--ob-space-3);
  width: 100%;
  align-items: center;
}

.slim-nav__spacer {
  flex: 1;
}

.slim-nav__btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--ob-radius-md);
  color: var(--ob-text-secondary);
  cursor: pointer;
  transition: all var(--ob-duration-fast) var(--ob-ease-default);
  position: relative;
}

.slim-nav__btn:hover {
  background: var(--ob-bg-hover);
  color: var(--ob-text-primary);
}

.slim-nav__btn--active {
  background: var(--ob-bg-elevated);
  color: var(--ob-text-primary);
  box-shadow: inset 3px 0 0 var(--ob-accent-lime);
}

/* ── Main App Content ── */
.app-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Top Header ── */
.top-header {
  height: 60px;
  background: var(--ob-bg-base);
  border-bottom: 1px solid var(--ob-border-default);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--ob-space-4);
  flex-shrink: 0;
  z-index: var(--ob-z-toolbar);
}

.header-left, .header-center, .header-right {
  display: flex;
  align-items: center;
  flex: 1;
}

.header-center {
  justify-content: center;
  gap: var(--ob-space-2);
}

.header-right {
  justify-content: flex-end;
  gap: var(--ob-space-3);
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--ob-space-2);
  font-size: var(--ob-text-sm);
  font-weight: var(--ob-weight-medium);
}
.breadcrumb-item { color: var(--ob-text-tertiary); cursor: pointer; }
.breadcrumb-item:hover { color: var(--ob-text-primary); }
.breadcrumb-separator { color: var(--ob-border-strong); }
.breadcrumb-item--active { color: var(--ob-text-primary); }

/* Toolbar Groups */
.toolbar-group {
  display: flex;
  align-items: center;
  background: var(--ob-bg-elevated);
  border-radius: var(--ob-radius-md);
  padding: 4px;
  border: 1px solid var(--ob-border-default);
}
.toolbar-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--ob-radius-sm);
  color: var(--ob-text-secondary);
  cursor: pointer;
  transition: all var(--ob-duration-fast) var(--ob-ease-default);
}
.toolbar-btn:hover { background: var(--ob-bg-hover); color: var(--ob-text-primary); }
.toolbar-btn--active { background: var(--ob-bg-base); color: var(--ob-text-primary); box-shadow: var(--ob-shadow-sm); }
.toolbar-divider { width: 1px; height: 24px; background: var(--ob-border-default); margin: 0 var(--ob-space-2); }

.zoom-text {
  font-size: var(--ob-text-xs);
  font-weight: var(--ob-weight-mono);
  color: var(--ob-text-secondary);
  min-width: 48px;
  text-align: center;
}

/* ── Segmented Controls (Pills) ── */
.segmented-control {
  display: flex;
  background: var(--ob-bg-elevated);
  border-radius: var(--ob-radius-md);
  padding: 4px;
  border: 1px solid var(--ob-border-default);
}
.segment {
  flex: 1;
  text-align: center;
  padding: var(--ob-space-1) var(--ob-space-3);
  font-size: var(--ob-text-xs);
  font-weight: var(--ob-weight-semi);
  color: var(--ob-text-secondary);
  border-radius: var(--ob-radius-sm);
  cursor: pointer;
  transition: all var(--ob-duration-fast) var(--ob-ease-default);
}
.segment:hover { color: var(--ob-text-primary); }
.segment--active {
  background: var(--ob-bg-base);
  color: var(--ob-text-primary);
  box-shadow: var(--ob-shadow-sm);
}

/* ── Main Views Area ── */
.main-views {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.view {
  display: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.view--active {
  display: flex;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ob-space-2);
  padding: var(--ob-space-2) var(--ob-space-4);
  font-size: var(--ob-text-sm);
  font-weight: var(--ob-weight-semi);
  border-radius: var(--ob-radius-md);
  cursor: pointer;
  transition: all var(--ob-duration-fast) var(--ob-ease-default);
  white-space: nowrap;
  user-select: none;
  line-height: 1.4;
}

.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--ob-gradient-brand);
  color: var(--ob-text-inverse);
  box-shadow: 0 4px 10px rgba(204, 255, 0, 0.2);
}
.btn--primary:hover {
  filter: brightness(1.05);
  box-shadow: 0 6px 14px rgba(204, 255, 0, 0.3);
}

.btn--secondary {
  background: var(--ob-bg-elevated);
  color: var(--ob-text-primary);
  border: 1px solid var(--ob-border-strong);
}
.btn--secondary:hover {
  background: var(--ob-bg-hover);
  border-color: var(--ob-text-secondary);
}

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

.btn--icon {
  padding: var(--ob-space-2);
  min-width: 32px;
  min-height: 32px;
}

.btn--sm {
  padding: var(--ob-space-1) var(--ob-space-3);
  font-size: var(--ob-text-xs);
}

.btn--lg {
  padding: var(--ob-space-3) var(--ob-space-6);
  font-size: var(--ob-text-md);
  border-radius: var(--ob-radius-lg);
}

/* ── Form Controls ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--ob-space-1);
}

.form-label {
  font-size: var(--ob-text-xs);
  font-weight: var(--ob-weight-medium);
  color: var(--ob-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input {
  padding: var(--ob-space-2) var(--ob-space-3);
  background: var(--ob-bg-elevated);
  border: 1px solid var(--ob-border-default);
  border-radius: var(--ob-radius-md);
  color: var(--ob-text-primary);
  font-size: var(--ob-text-sm);
  font-variant-numeric: tabular-nums;
  transition: border-color var(--ob-duration-fast) var(--ob-ease-default),
              box-shadow var(--ob-duration-fast) var(--ob-ease-default),
              background-color var(--ob-duration-fast) var(--ob-ease-default);
}

.form-input:hover:not(:focus) {
  border-color: var(--ob-border-strong);
  background: var(--ob-bg-base);
}

.form-input:focus {
  border-color: var(--ob-accent-lime);
  background: var(--ob-bg-base);
  box-shadow: 0 0 0 3px rgba(204, 255, 0, 0.25);
}

.form-input::placeholder {
  color: var(--ob-text-tertiary);
}

.form-input--sm {
  padding: 6px var(--ob-space-2);
  font-size: var(--ob-text-xs);
  border-radius: var(--ob-radius-sm);
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%234b5563' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
  cursor: pointer;
}

input[type="color"].form-input {
  padding: 2px;
  height: 32px;
  cursor: pointer;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--ob-border-strong);
  border-radius: 2px;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ob-text-primary);
  border: 2px solid var(--ob-bg-base);
  box-shadow: var(--ob-shadow-sm);
  cursor: grab;
  transition: transform var(--ob-duration-fast) var(--ob-ease-spring),
              box-shadow var(--ob-duration-fast) var(--ob-ease-default);
}
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.12); }
input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(0.94);
  cursor: grabbing;
  box-shadow: 0 0 0 4px rgba(204, 255, 0, 0.25);
}
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ob-text-primary);
  border: 2px solid var(--ob-bg-base);
  box-shadow: var(--ob-shadow-sm);
  cursor: grab;
}
input[type="range"]:active::-moz-range-thumb { box-shadow: 0 0 0 4px rgba(204, 255, 0, 0.25); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--ob-space-1);
  padding: 2px var(--ob-space-2);
  font-size: var(--ob-text-xs);
  font-weight: var(--ob-weight-semi);
  border-radius: var(--ob-radius-full);
  line-height: 1.5;
}

.badge--green { background: rgba(16, 185, 129, 0.12); color: var(--ob-accent-green); }
.badge--red { background: rgba(239, 68, 68, 0.12); color: var(--ob-accent-red); }
.badge--amber { background: rgba(245, 158, 11, 0.12); color: var(--ob-accent-amber); }
.badge--lime { background: rgba(204, 255, 0, 0.2); color: var(--ob-text-inverse); }

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(4px);
  z-index: var(--ob-z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ob-duration-fast) var(--ob-ease-default);
}

.modal-backdrop--open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--ob-bg-base);
  border: 1px solid var(--ob-border-default);
  border-radius: var(--ob-radius-lg);
  padding: var(--ob-space-6);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--ob-shadow-xl);
  transform: translateY(20px) scale(0.95);
  transition: transform var(--ob-duration-fast) var(--ob-ease-spring);
}

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

.modal__title {
  font-size: var(--ob-text-xl);
  font-weight: var(--ob-weight-bold);
  margin-bottom: var(--ob-space-2);
}

.modal__desc {
  font-size: var(--ob-text-sm);
  color: var(--ob-text-secondary);
  margin-bottom: var(--ob-space-6);
  line-height: var(--ob-leading-normal);
}

.modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--ob-space-3);
  margin-top: var(--ob-space-6);
}

/* ── Toasts ── */
.toast-container {
  position: fixed;
  bottom: var(--ob-space-6);
  right: var(--ob-space-6);
  display: flex;
  flex-direction: column;
  gap: var(--ob-space-3);
  z-index: var(--ob-z-toast);
  pointer-events: none;
}

.toast {
  background: var(--ob-bg-elevated);
  border: 1px solid var(--ob-border-default);
  border-radius: var(--ob-radius-md);
  padding: var(--ob-space-3) var(--ob-space-4);
  color: var(--ob-text-primary);
  font-size: var(--ob-text-sm);
  box-shadow: var(--ob-shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--ob-space-3);
  animation: slideIn var(--ob-duration-normal) var(--ob-ease-spring);
  pointer-events: auto;
}

.toast--success { border-left: 4px solid var(--ob-accent-lime); }
.toast--error { border-left: 4px solid var(--ob-accent-red); }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px) scale(0.95); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes slideOut {
  from { opacity: 1; transform: translateX(0) scale(1); }
  to { opacity: 0; transform: translateX(20px) scale(0.95); }
}

/* ── Tooltips ── */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  padding: 4px 8px;
  background: var(--ob-text-primary);
  color: var(--ob-bg-base);
  font-size: 11px;
  font-weight: var(--ob-weight-semi);
  border-radius: var(--ob-radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: all var(--ob-duration-fast) var(--ob-ease-default);
  z-index: 100;
}

[data-tooltip]:hover::before {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* Slim nav is a vertical rail — show tooltips to the right (not below),
   so the bottom buttons (API settings, logout) aren't clipped off-screen */
.slim-nav__btn[data-tooltip]::before {
  bottom: auto;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%) scale(0.95);
}
.slim-nav__btn[data-tooltip]:hover::before {
  transform: translateY(-50%) scale(1);
}

/* ── Utility ── */
.divider {
  height: 1px;
  background: var(--ob-border-default);
  margin: var(--ob-space-4) 0;
  border: none;
}

/* ═══════════════════════════════════════════════════════════
   Auth Gate (Login)
   ═══════════════════════════════════════════════════════════ */
.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ob-space-6);
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(204, 255, 0, 0.10), transparent 60%),
    var(--ob-bg-deep);
  transition: opacity var(--ob-duration-normal) var(--ob-ease-default);
}

/* Hidden once authenticated */
body.authed .auth-gate {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--ob-bg-base);
  border: 1px solid var(--ob-border-default);
  border-radius: var(--ob-radius-xl);
  box-shadow: var(--ob-shadow-xl);
  padding: var(--ob-space-10) var(--ob-space-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: authIn var(--ob-duration-slow) var(--ob-ease-spring);
}

@keyframes authIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-logo {
  width: 56px;
  height: 56px;
  background: var(--ob-accent-lime);
  color: var(--ob-text-inverse);
  border-radius: var(--ob-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--ob-weight-bold);
  font-size: var(--ob-text-2xl);
  margin-bottom: var(--ob-space-5);
  box-shadow: 0 8px 20px rgba(204, 255, 0, 0.3);
}

.auth-title {
  font-size: var(--ob-text-2xl);
  font-weight: var(--ob-weight-bold);
  color: var(--ob-text-primary);
  margin-bottom: var(--ob-space-2);
  letter-spacing: -0.01em;
}

.auth-subtitle {
  font-size: var(--ob-text-md);
  color: var(--ob-text-secondary);
  margin-bottom: var(--ob-space-8);
  line-height: var(--ob-leading-normal);
}

.auth-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--ob-space-4);
  text-align: left;
}

.auth-form .form-label {
  margin-bottom: 0;
}

.auth-submit {
  width: 100%;
  margin-top: var(--ob-space-2);
}

.auth-error {
  font-size: var(--ob-text-sm);
  color: var(--ob-accent-red);
  min-height: var(--ob-text-lg);
}

.auth-hint {
  margin-top: var(--ob-space-6);
  font-size: var(--ob-text-xs);
  color: var(--ob-text-tertiary);
  line-height: var(--ob-leading-normal);
}

/* ═══════════════════════════════════════════════════════════
   Accessibility — visible focus rings (keyboard nav)
   ═══════════════════════════════════════════════════════════ */
:focus-visible {
  outline: none;
  box-shadow: 0 0 0 var(--ob-ring-offset) var(--ob-bg-base),
              0 0 0 calc(var(--ob-ring-offset) + 2px) var(--ob-ring);
  border-radius: var(--ob-radius-sm);
}

/* Keep form inputs' own focus style, just strengthen ring */
.form-input:focus-visible {
  box-shadow: 0 0 0 3px var(--ob-ring);
}

/* Pointer affordance on all interactive controls */
button, .btn, [role="button"], .preset-btn, .segment,
.toolbar-btn, .slim-nav__btn, .layer-item, .breadcrumb-item,
.tpl-card, .canvas-element { cursor: pointer; }

input, textarea, select, [contenteditable] { cursor: text; }
input[type="range"] { cursor: grab; }

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