/* =========================================
   ShopVault — Authentication CSS
   Theme: Bright · Bold · Light
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600&display=swap');

:root {
  --bg:         #f0f2f5;
  --panel-bg:   #e8eaf0;
  --card-bg:    #ffffff;
  --card-border:#dde0e8;
  --orange:     #ff5a00;
  --orange-lt:  #ff7a2e;
  --orange-dk:  #cc4400;
  --yellow:     #ffc200;
  --teal:       #00c9a7;
  --blue:       #2563ff;
  --text:       #0a0a0a;
  --text-muted: #3a3a3a;
  --label:      #1a1a1a;
  --subtle:     #5a5a6a;
  --border:     #d0d4de;
  --input-bg:   #f7f8fc;
  --error:      #e0001a;
  --success:    #007a45;
  --radius:     12px;
  --transition: 0.2s ease;
}

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

html, body {
  height: 100%;
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ══════════════════════════════
   SPLIT LAYOUT
══════════════════════════════ */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

/* ══════════════════════════════
   BRAND PANEL
══════════════════════════════ */
.brand-panel {
  background: var(--orange);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
}

/* Layered background stripes */
.brand-panel::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 70%;
  height: 140%;
  background: var(--orange-dk);
  clip-path: polygon(0 0, 65% 0, 45% 100%, 0 100%);
  opacity: 0.35;
}

/* Dot grid overlay */
.brand-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.25) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
}

.brand-content {
  position: relative;
  z-index: 1;
  max-width: 420px;
}

/* ── LOGO ── */
.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 3rem;
}

.logo-icon {
  font-size: 2rem;
  color: #fff;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
}

.logo-text {
  font-family: 'Syne', sans-serif;
  font-size: 1.9rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

/* ── BRAND HEADLINE ── */
.brand-headline h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  font-weight: 800;
  line-height: 1.08;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}

.brand-headline h1 em {
  font-style: normal;
  color: var(--yellow);
  text-shadow: 0 2px 20px rgba(255,194,0,0.4);
}

.brand-headline p {
  font-size: 1rem;
  color: rgba(255,255,255,0.82);
  line-height: 1.75;
  max-width: 320px;
  font-weight: 400;
}

/* ── STATS ── */
.brand-stats {
  display: flex;
  gap: 0;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.3);
}

.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-right: 1.5rem;
  border-right: 1px solid rgba(255,255,255,0.25);
  margin-right: 1.5rem;
}

.stat:last-child {
  border-right: none;
  margin-right: 0;
  padding-right: 0;
}

.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.7);
  font-weight: 600;
}

/* ── DECORATIVE SHAPES ── */
.brand-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.shape {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
}

.s1 { width: 460px; height: 460px; top: -150px; right: -180px; animation: rotate 32s linear infinite; }
.s2 { width: 260px; height: 260px; bottom: -60px; left: -80px; animation: rotate 20s linear infinite reverse; border-color: rgba(255,194,0,0.2); }
.s3 { width: 140px; height: 140px; top: 48%; left: 60%; animation: rotate 14s linear infinite; border-color: rgba(255,255,255,0.1); }

@keyframes rotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ══════════════════════════════
   FORM PANEL
══════════════════════════════ */
.form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  background: var(--panel-bg);
}

.form-panel.single {
  min-height: 100vh;
  width: 100%;
}

.form-card {
  width: 100%;
  max-width: 460px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow:
    0 4px 6px rgba(0,0,0,0.04),
    0 20px 50px rgba(0,0,0,0.08);
  animation: slideUp 0.45s cubic-bezier(0.22,1,0.36,1) both;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════
   TABS
══════════════════════════════ */
.tabs {
  display: flex;
  background: var(--bg);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  gap: 0;
}

.tab {
  flex: 1;
  padding: 0.65rem 1rem;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--subtle);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tab.active {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 3px 14px rgba(255,90,0,0.35);
}

.tab:not(.active):hover {
  color: var(--text);
  background: rgba(0,0,0,0.04);
}

/* ══════════════════════════════
   FORM HEADER
══════════════════════════════ */
.form-header { margin-bottom: 1.8rem; }

.form-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.form-header p {
  font-size: 0.88rem;
  color: var(--subtle);
  font-weight: 400;
}

/* ══════════════════════════════
   AUTH FORMS
══════════════════════════════ */
.auth-form {
  display: none;
  flex-direction: column;
  gap: 1.2rem;
}

.auth-form.active { display: flex; }

/* ══════════════════════════════
   FIELD GROUPS
══════════════════════════════ */
.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ══════════════════════════════
   INPUT WRAP
══════════════════════════════ */
.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 1rem;
  font-size: 0.85rem;
  color: var(--subtle);
  pointer-events: none;
  z-index: 1;
  transition: color var(--transition);
}

.input-wrap input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.7rem;
  background: var(--input-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.92rem;
  font-weight: 500;
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.input-wrap input:not(:has(~ .toggle-pw)) { padding-right: 1rem; }

.input-wrap input::placeholder {
  color: #aaa;
  font-weight: 400;
}

.input-wrap input:focus {
  border-color: var(--orange);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255,90,0,0.12);
}

.input-wrap input:focus ~ .input-icon { color: var(--orange); }

.input-wrap input.invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(224,0,26,0.1);
}

/* No icon for name fields */
.field-row .input-wrap input { padding-left: 1rem; }

.toggle-pw {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  color: var(--subtle);
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0.3rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.toggle-pw:hover { color: var(--orange); }

/* ══════════════════════════════
   FORM ROW
══════════════════════════════ */
.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

/* ══════════════════════════════
   CHECKBOX
══════════════════════════════ */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--orange);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

.checkbox-label a {
  color: var(--orange);
  text-decoration: none;
  font-weight: 600;
}

.checkbox-label a:hover { text-decoration: underline; }

.forgot-link {
  font-size: 0.82rem;
  color: var(--orange);
  text-decoration: none;
  font-weight: 600;
  transition: opacity var(--transition);
}

.forgot-link:hover { opacity: 0.7; }

/* ══════════════════════════════
   FIELD ERRORS
══════════════════════════════ */
.field-error {
  font-size: 0.75rem;
  color: var(--error);
  min-height: 1em;
  display: block;
  font-weight: 600;
}

/* ══════════════════════════════
   MESSAGES
══════════════════════════════ */
.message {
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.86rem;
  line-height: 1.5;
  border: 1.5px solid transparent;
  font-weight: 500;
}

.message.hidden { display: none; }

.message.success {
  background: #e6f9f0;
  border-color: #a3e6c8;
  color: var(--success);
}

.message.error {
  background: #fff0f2;
  border-color: #f5b3bb;
  color: var(--error);
}

/* ══════════════════════════════
   PASSWORD STRENGTH
══════════════════════════════ */
.pw-strength {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.strength-bar {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

#strength-fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 2px;
  transition: width 0.3s ease, background 0.3s ease;
}

#strength-label {
  font-size: 0.7rem;
  color: var(--subtle);
  min-width: 50px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ══════════════════════════════
   PRIMARY BUTTON
══════════════════════════════ */
.btn-primary {
  width: 100%;
  padding: 1rem;
  background: var(--orange);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  position: relative;
  overflow: hidden;
}

/* Shine sweep on hover */
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.22) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn-primary:hover::after { transform: translateX(100%); }

.btn-primary:hover {
  background: var(--orange-lt);
  box-shadow: 0 8px 28px rgba(255,90,0,0.38);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

/* ══════════════════════════════
   SPINNER
══════════════════════════════ */
.btn-loader {
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn-loader.hidden { display: none; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ══════════════════════════════
   DASHBOARD
══════════════════════════════ */
.dashboard {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.dash-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 2.5rem;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.nav-actions { display: flex; align-items: center; gap: 1.5rem; }

.welcome-msg {
  color: var(--subtle);
  font-size: 0.88rem;
  font-weight: 500;
}

.btn-logout {
  padding: 0.5rem 1.2rem;
  background: transparent;
  border: 1.5px solid var(--orange);
  border-radius: 8px;
  color: var(--orange);
  font-size: 0.78rem;
  text-decoration: none;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all var(--transition);
}

.btn-logout:hover {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,90,0,0.3);
}

.dash-body {
  flex: 1;
  padding: 3rem 2.5rem;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.dash-body h1 {
  font-family: 'Syne', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.dash-body > p {
  color: var(--subtle);
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.dash-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.dash-card {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.dash-card:hover {
  border-color: var(--orange);
  color: var(--text);
  box-shadow: 0 6px 24px rgba(255,90,0,0.1);
  transform: translateY(-2px);
}

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
@media (max-width: 768px) {
  .split-layout { grid-template-columns: 1fr; }
  .brand-panel { display: none; }
  .form-panel { padding: 1.5rem; background: var(--bg); }
  .form-card { padding: 2rem 1.5rem; }
  .field-row { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}