/* =========================================================
   PETPET — Phê Duyệt Thanh Toán — App Stylesheet
   ========================================================= */

/* Mona Sans Font Faces */
@font-face {
  font-family: 'Mona Sans';
  src: url('/static/fonts/MonaSans-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Mona Sans';
  src: url('/static/fonts/MonaSans-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Mona Sans';
  src: url('/static/fonts/MonaSans-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Mona Sans';
  src: url('/static/fonts/MonaSans-Black.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

/* CSS Custom Properties */
:root {
  --brand-yellow: #FED519;
  --brand-black: #000000;
  --brand-grey: #414545;
  --brand-pink: #EC008D;
  --brand-white: #FFFFFF;
  --brand-off-white: #FAFAF8;
  --brand-border: #E8E6E0;
  --brand-yellow-dark: #D4B015;
  --brand-pink-dark: #C40076;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(0,0,0,0.08), 0 8px 24px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 4px 12px rgba(0,0,0,0.10), 0 16px 40px rgba(0,0,0,0.08);
  --shadow-header: 0 2px 0 rgba(0,0,0,0.08);

  /* Typography */
  --font-sans: 'Mona Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--brand-black);
  background-color: var(--brand-off-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

/* ---- Header / Top Bar ---- */
.petpet-header {
  background: var(--brand-yellow);
  box-shadow: var(--shadow-header);
  position: sticky;
  top: 0;
  z-index: 50;
}

.petpet-header__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 60px;
}

.petpet-header__logo img {
  height: 36px;
  width: auto;
  display: block;
}

.petpet-header__divider {
  width: 1px;
  height: 28px;
  background: rgba(0,0,0,0.18);
  flex-shrink: 0;
}

.petpet-header__title {
  font-weight: 900;
  font-size: 1rem;
  color: var(--brand-black);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.petpet-header__spacer {
  flex: 1;
}

.petpet-header__user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--brand-black);
}

.petpet-header__user-info {
  text-align: right;
  line-height: 1.3;
}

.petpet-header__user-name {
  font-weight: 700;
  display: block;
}

.petpet-header__user-role {
  font-size: 0.75rem;
  color: var(--brand-grey);
  display: block;
}

.petpet-header__logout {
  color: var(--brand-pink);
  font-weight: 600;
  font-size: 0.8125rem;
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border: 1.5px solid var(--brand-pink);
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.petpet-header__logout:hover {
  background: var(--brand-pink);
  color: var(--brand-white);
}

/* ---- Navigation ---- */
.petpet-nav {
  background: var(--brand-black);
  border-bottom: 2px solid var(--brand-yellow);
}

.petpet-nav__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  gap: 0;
}

.petpet-nav__link {
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.625rem 1rem;
  display: inline-block;
  letter-spacing: 0.01em;
  transition: color 0.15s, background 0.15s;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}

.petpet-nav__link:hover {
  color: var(--brand-yellow);
  background: rgba(254, 213, 25, 0.05);
}

.petpet-nav__link.active {
  color: var(--brand-yellow);
  border-bottom-color: var(--brand-yellow);
}

.petpet-nav__sep {
  color: rgba(255,255,255,0.2);
  display: inline-flex;
  align-items: center;
  padding: 0 0.25rem;
  font-size: 0.75rem;
  user-select: none;
}

/* ---- Main Content Area ---- */
.petpet-main {
  min-height: calc(100vh - 60px);
}

/* ---- Cards ---- */
.petpet-card {
  background: var(--brand-white);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--brand-border);
  overflow: hidden;
}

.petpet-card:hover {
  box-shadow: var(--shadow-card-hover);
}

/* ---- Auth Layout (Login / Change Password) ---- */
.auth-page {
  min-height: 100vh;
  background: var(--brand-off-white);
  display: flex;
  flex-direction: column;
}

.auth-page__header {
  background: var(--brand-yellow);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  box-shadow: var(--shadow-header);
}

.auth-page__header img {
  height: 34px;
  width: auto;
}

.auth-page__header-title {
  font-weight: 900;
  font-size: 0.9375rem;
  color: var(--brand-black);
  letter-spacing: -0.01em;
}

.auth-page__body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  background: var(--brand-white);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--brand-border);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  position: relative;
  overflow: hidden;
}

/* Decorative top accent bar */
.auth-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-yellow) 0%, var(--brand-pink) 100%);
}

.auth-card__icon {
  width: 52px;
  height: 52px;
  background: var(--brand-yellow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.auth-card__title {
  font-size: 1.375rem;
  font-weight: 900;
  color: var(--brand-black);
  letter-spacing: -0.025em;
  margin: 0 0 0.375rem;
  line-height: 1.2;
}

.auth-card__subtitle {
  font-size: 0.875rem;
  color: var(--brand-grey);
  margin: 0 0 1.75rem;
  line-height: 1.5;
}

/* ---- Form Elements ---- */
.form-group {
  margin-bottom: 1.125rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--brand-black);
  margin-bottom: 0.4rem;
  letter-spacing: 0.005em;
}

.form-input {
  width: 100%;
  padding: 0.6875rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--brand-black);
  background: var(--brand-white);
  border: 1.5px solid var(--brand-border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus {
  border-color: var(--brand-pink);
  box-shadow: 0 0 0 3px rgba(236, 0, 141, 0.1);
}

.form-input::placeholder {
  color: #B0ADAA;
  font-weight: 400;
}

.form-hint {
  font-size: 0.75rem;
  color: #888;
  margin-top: 0.3rem;
}

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 1.5rem;
  background: var(--brand-pink);
  color: var(--brand-white);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  letter-spacing: 0.01em;
  margin-top: 0.25rem;
}

.btn-primary:hover {
  background: var(--brand-pink-dark);
  box-shadow: 0 4px 12px rgba(236, 0, 141, 0.3);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: transparent;
  color: var(--brand-pink);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  border: 1.5px solid var(--brand-pink);
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.btn-secondary:hover {
  background: var(--brand-pink);
  color: var(--brand-white);
}

/* ---- Alert / Error ---- */
.alert-error {
  background: #FFF0F6;
  border: 1px solid #FFB3D9;
  border-left: 4px solid var(--brand-pink);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #A30062;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.4;
}

.alert-error__icon {
  flex-shrink: 0;
  margin-top: 0.075rem;
}

.alert-info {
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  border-left: 4px solid var(--brand-yellow);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #6B5300;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.4;
}

/* ---- Footer / Auth Page Footer ---- */
.auth-page__footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.75rem;
  color: #AAA;
}

/* ---- Paw print decorative background ---- */
.auth-page__paw-bg {
  position: fixed;
  bottom: 0;
  right: 0;
  width: 280px;
  height: 280px;
  opacity: 0.03;
  pointer-events: none;
  overflow: hidden;
}

/* ---- Password strength visual separator ---- */
.form-divider {
  height: 1px;
  background: var(--brand-border);
  margin: 1.5rem 0;
}

/* ---- Role badge ---- */
.role-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--brand-yellow);
  color: var(--brand-black);
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .auth-card {
    padding: 2rem 1.25rem;
    border-radius: 12px;
  }

  .auth-card__title {
    font-size: 1.25rem;
  }

  .petpet-header__user-info {
    display: none;
  }
}

/* ---- Utility ---- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}