/* InstaShake Inspect v1.1 — Design System */

/* ── CSS Variables ──────────────────────────────────────── */
:root {
  --c-primary: #4F46E5;
  --c-primary-hover: #4338CA;
  --c-primary-light: #EEF2FF;
  --c-primary-50: #E0E7FF;
  --c-danger: #DC2626;
  --c-danger-hover: #B91C1C;
  --c-danger-light: #FEF2F2;
  --c-success: #059669;
  --c-success-light: #ECFDF5;
  --c-warning: #D97706;
  --c-warning-light: #FFFBEB;
  --c-gray-50: #F9FAFB;
  --c-gray-100: #F3F4F6;
  --c-gray-200: #E5E7EB;
  --c-gray-300: #D1D5DB;
  --c-gray-400: #9CA3AF;
  --c-gray-500: #6B7280;
  --c-gray-600: #4B5563;
  --c-gray-700: #374151;
  --c-gray-800: #1F2937;
  --c-gray-900: #111827;
  --c-white: #FFFFFF;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); font-size: 14px; line-height: 1.6; color: var(--c-gray-800); background: var(--c-gray-50); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

/* ── Layout ────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.container-sm { max-width: 480px; margin: 0 auto; padding: 0 16px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.flex-1 { flex: 1; min-width: 0; }
.shrink-0 { flex-shrink: 0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.hidden { display: none; }

/* ── Spacing ───────────────────────────────────────────── */
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.px-3 { padding-left: 12px; padding-right: 12px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.px-6 { padding-left: 24px; padding-right: 24px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }
.py-4 { padding-top: 16px; padding-bottom: 16px; }
.py-6 { padding-top: 24px; padding-bottom: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }

/* ── Text ──────────────────────────────────────────────── */
.text-xs { font-size: 12px; }
.text-sm { font-size: 13px; }
.text-base { font-size: 14px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 30px; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-primary { color: var(--c-primary); }
.text-success { color: var(--c-success); }
.text-danger { color: var(--c-danger); }
.text-warning { color: var(--c-warning); }
.text-muted { color: var(--c-gray-500); }
.text-light { color: var(--c-gray-400); }

/* ── Card ──────────────────────────────────────────────── */
.card { background: var(--c-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--c-gray-100); overflow: hidden; }
.card-body { padding: 16px; }
.card-header { padding: 12px 16px; border-bottom: 1px solid var(--c-gray-100); }
.card-hover:hover { box-shadow: var(--shadow-md); border-color: var(--c-primary-light); }

/* ── Badge ─────────────────────────────────────────────── */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 20px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.badge-success { background: var(--c-success-light); color: var(--c-success); }
.badge-danger { background: var(--c-danger-light); color: var(--c-danger); }
.badge-warning { background: var(--c-warning-light); color: var(--c-warning); }
.badge-primary { background: var(--c-primary-light); color: var(--c-primary); }
.badge-gray { background: var(--c-gray-100); color: var(--c-gray-600); }

/* ── Button ────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 16px; border-radius: var(--radius); font-size: 13px; font-weight: 500; border: none; cursor: pointer; transition: all .15s ease; white-space: nowrap; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--c-primary); color: var(--c-white); }
.btn-primary:hover:not(:disabled) { background: var(--c-primary-hover); }
.btn-success { background: var(--c-success); color: var(--c-white); }
.btn-success:hover:not(:disabled) { background: #047857; }
.btn-danger { background: var(--c-danger); color: var(--c-white); }
.btn-danger:hover:not(:disabled) { background: var(--c-danger-hover); }
.btn-ghost { background: transparent; color: var(--c-gray-600); border: 1px solid var(--c-gray-200); }
.btn-ghost:hover:not(:disabled) { background: var(--c-gray-50); }
.btn-block { width: 100%; }
.btn-lg { padding: 12px 24px; font-size: 15px; border-radius: var(--radius-lg); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ── Form ──────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--c-gray-700); margin-bottom: 4px; }
.form-input { width: 100%; padding: 8px 12px; border: 1px solid var(--c-gray-200); border-radius: var(--radius); font-size: 14px; outline: none; transition: border-color .15s, box-shadow .15s; background: var(--c-white); }
.form-input:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(79,70,229,.1); }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 30px; }

/* ── Table ─────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { padding: 10px 16px; text-align: left; font-size: 11px; font-weight: 600; color: var(--c-gray-500); text-transform: uppercase; letter-spacing: .5px; background: var(--c-gray-50); border-bottom: 1px solid var(--c-gray-100); }
td { padding: 12px 16px; font-size: 13px; border-bottom: 1px solid var(--c-gray-50); vertical-align: middle; }
tr:hover td { background: var(--c-primary-light); }
th.text-center, td.text-center { text-align: center; }

/* ── Progress Bar ──────────────────────────────────────── */
.progress { height: 6px; background: var(--c-gray-100); border-radius: 3px; overflow: hidden; }
.progress-bar { height: 100%; border-radius: 3px; transition: width .3s ease; }
.progress-bar-success { background: var(--c-success); }
.progress-bar-warning { background: var(--c-warning); }
.progress-bar-danger { background: var(--c-danger); }
.progress-bar-primary { background: var(--c-primary); }

/* ── Stat Card ─────────────────────────────────────────── */
.stat-card { background: var(--c-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--c-gray-100); padding: 16px; display: flex; align-items: center; gap: 12px; }
.stat-icon { width: 40px; height: 40px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.stat-icon-primary { background: var(--c-primary-light); color: var(--c-primary); }
.stat-icon-success { background: var(--c-success-light); color: var(--c-success); }
.stat-icon-warning { background: var(--c-warning-light); color: var(--c-warning); }
.stat-icon-gray { background: var(--c-gray-100); color: var(--c-gray-500); }
.stat-value { font-size: 24px; font-weight: 700; line-height: 1.2; }
.stat-label { font-size: 12px; color: var(--c-gray-500); }

/* ── Nav ───────────────────────────────────────────────── */
.nav { background: var(--c-white); border-bottom: 1px solid var(--c-gray-200); position: sticky; top: 0; z-index: 30; }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; justify-content: between; height: 56px; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: var(--c-gray-900); }
.nav-brand-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--c-primary), #7C3AED); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.nav-brand-icon svg { width: 18px; height: 18px; color: white; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 6px 10px; border-radius: var(--radius-sm); font-size: 13px; color: var(--c-gray-500); transition: color .15s, background .15s; }
.nav-link:hover { color: var(--c-primary); background: var(--c-primary-light); }
.nav-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.nav-logout { font-size: 13px; color: var(--c-gray-400); }
.nav-logout:hover { color: var(--c-danger); }

/* ── Mobile Header ─────────────────────────────────────── */
.m-header { background: linear-gradient(135deg, var(--c-primary), #7C3AED); color: white; padding: 40px 16px 20px; }
.m-header h1 { font-size: 18px; font-weight: 700; }
.m-header p { font-size: 13px; opacity: .7; margin-top: 2px; }
.m-back { color: rgba(255,255,255,.7); display: inline-flex; align-items: center; }
.m-back:hover { color: white; }
.m-back .icon { width: 24px; height: 24px; }

/* ── SVG Icons (Heroicons) ─────────────────────────────── */
.icon { width: 20px; height: 20px; flex-shrink: 0; }
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 24px; height: 24px; }

/* ── Empty State ───────────────────────────────────────── */
.empty-state { text-align: center; padding: 48px 16px; color: var(--c-gray-400); }
.empty-state svg { width: 48px; height: 48px; margin: 0 auto 12px; opacity: .5; }

/* ── Modal ─────────────────────────────────────────────── */
.modal-overlay, .img-modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 9999; display: none; align-items: center; justify-content: center; }
.img-modal-overlay.active, .modal-overlay:not(.hidden) { display: flex; }
.img-modal-overlay img, .modal-overlay img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius-lg); object-fit: contain; }
.img-modal-close { position: absolute; top: 16px; right: 20px; font-size: 32px; color: white; cursor: pointer; z-index: 10000; line-height: 1; }
.img-modal-overlay.active { display: flex !important; }
.modal { background: var(--c-white); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); width: 100%; max-width: 480px; margin: 16px; padding: 24px; }
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }

/* ── Compare Grid ──────────────────────────────────────── */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.compare-grid img { width: 100%; border-radius: var(--radius); object-fit: cover; max-height: 180px; cursor: pointer; }

/* ── Login Page ────────────────────────────────────────── */
.login-bg { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; background: linear-gradient(135deg, var(--c-primary-light) 0%, var(--c-white) 50%, #F3E8FF 100%); }
.login-card { width: 100%; max-width: 360px; }

/* ── Mobile Safe Area ──────────────────────────────────── */
body { -webkit-tap-highlight-color: transparent; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .nav-inner { gap: 8px; }
  .nav-links { display: none; }
  .hide-mobile { display: none; }
}
@media (max-width: 480px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* ── Spinner ──────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Force hidden override — must be last */
[hidden], .hidden { display: none !important; }


/* ── Toggle Switch ────────────────────────────────────── */
.toggle-switch { position: relative; display: inline-block; width: 36px; height: 20px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--c-gray-300); transition: .2s; border-radius: 20px; }
.toggle-slider:before { position: absolute; content: ""; height: 16px; width: 16px; left: 2px; bottom: 2px; background-color: white; transition: .2s; border-radius: 50%; }
.toggle-switch input:checked + .toggle-slider { background-color: var(--c-primary); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(16px); }