/* =============================================
   BPOTech For Salesman — style.css
   Converted from Canva export (code.html)
   ============================================= */

/* 1. CSS Variables — Design Tokens */
:root {
  --blue: #2269B2;
  --blue-deep: #123F78;
  --orange: #E86814;
  --ink: #333333;
  --muted: #696969;
  --soft: #EEF5FC;
  --line: #DCE8F4;
  --white: #FFFFFF;
  --font: 'Work Sans', sans-serif;
  --max-w: 1280px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,.25);
  --transition: .22s ease;
}

/* 2. Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input { font-family: inherit; border: none; outline: none; }

/* 3. Layout Utilities */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

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

/* 4. Focus Ring */
.focus-ring:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

/* =============================================
   HEADER
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  border-bottom: 1px solid rgba(34, 105, 178, .12);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  height: 76px;
}

.site-header__logo {
  display: inline-flex;
  border-radius: 6px;
}

.site-header__logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 79% 23%, rgba(255,255,255,.15) 0 2px, transparent 3px),
    radial-gradient(circle at 60% 77%, rgba(232,104,20,.2) 0 2px, transparent 3px),
    linear-gradient(125deg, #123F78 0%, #2269B2 58%, #4B91D7 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .14;
  background-image:
    linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent);
  -webkit-mask-image: linear-gradient(to bottom, black, transparent);
}

/* Orbs */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  filter: blur(1px);
  animation: drift 9s ease-in-out infinite alternate;
}

.hero__orb--one {
  width: 17rem;
  height: 17rem;
  top: -5rem;
  right: 8%;
}

.hero__orb--two {
  width: 12rem;
  height: 12rem;
  left: 38%;
  bottom: -4rem;
  background: rgba(232,104,20,.24);
  animation-delay: -2s;
}

@keyframes drift {
  to { transform: translate3d(18px, 18px, 0) scale(1.08); }
}

/* Hero Grid */
.hero__grid {
  position: relative;
  z-index: 10;
  display: grid;
  align-items: center;
  gap: 40px;
  padding-top: 64px;
  padding-bottom: 64px;
}

.hero__content {
  color: var(--white);
}

.hero__title {
  max-width: 32rem;
  font-weight: 700;
  font-size: 56px;
  line-height: 1.05;
  letter-spacing: -0.05rem;
  color: var(--white);
}

/* Hero Screen Mockup */
.hero__visual {
  position: relative;
  display: flex;
  min-height: 300px;
  align-items: center;
  justify-content: center;
}

.hero-screen {
  position: relative;
  width: 100%;
  max-width: 620px;
  border-radius: var(--radius-xl);
  background: var(--white);
  padding: 10px;
  box-shadow: 0 30px 80px rgba(8,42,80,.36);
  animation: float-screen 5.5s ease-in-out infinite;
}

@keyframes float-screen {
  50% { transform: translateY(-9px); }
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 22px;
  padding: 0 9px;
  border-bottom: 1px solid var(--line);
  background: #F4F8FC;
  border-radius: 8px 8px 0 0;
}

.browser-bar__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #9CB0C5;
}

.browser-bar__url {
  margin-left: 12px;
  height: 8px;
  width: 128px;
  border-radius: var(--radius-full);
  background: #E2E8F0;
}

.hero-screen__body {
  position: relative;
  min-height: 265px;
  overflow: hidden;
  border-radius: 0 0 8px 8px;
  background: #EEF7FF;
}

.hero-screen__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, #E7F4FF, white, #CDE9FB);
}

/* Wireframe elements inside the screen */
.wireframe-bar {
  position: absolute;
  border-radius: var(--radius-full);
}

.wireframe-bar--nav {
  left: 28px; top: 32px;
  height: 8px; width: 96px;
  background: var(--blue);
}

.wireframe-bar--h1a {
  left: 28px; top: 56px;
  height: 28px; width: 52%;
  border-radius: 4px;
  background: #173F73;
}

.wireframe-bar--h1b {
  left: 28px; top: 96px;
  height: 28px; width: 39%;
  border-radius: 4px;
  background: #173F73;
}

.wireframe-bar--text1 {
  left: 28px; top: 144px;
  height: 12px; width: 45%;
  border-radius: 4px;
  background: #CBD5E1;
}

.wireframe-bar--text2 {
  left: 28px; top: 168px;
  height: 12px; width: 35%;
  border-radius: 4px;
  background: #E2E8F0;
}

.wireframe-bar--cta {
  position: absolute;
  bottom: 32px; left: 28px;
  height: 40px; width: 128px;
  border-radius: 8px;
  background: var(--orange);
}

.wireframe-shape {
  position: absolute;
  bottom: 0; right: 32px;
  height: 81%; width: 43%;
  border-radius: 80px 80px 0 0;
  background: linear-gradient(to bottom, #4F9BDD, #1D5FA4);
}

.wireframe-card {
  position: absolute;
  bottom: 23%; right: 17%;
  height: 34%; width: 23%;
  transform: rotate(-8deg);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.wireframe-card__header {
  height: 16px;
  border-radius: 12px 12px 0 0;
  background: #EAF4FC;
}

.wireframe-card__bar1 {
  margin: 16px;
  height: 32px;
  border-radius: 4px;
  background: var(--orange);
}

.wireframe-card__bar2 {
  margin: 0 16px;
  height: 8px;
  border-radius: 4px;
  background: #E2E8F0;
}

.wireframe-card__bar3 {
  margin: 16px;
  height: 64px;
  border-radius: 4px;
  background: #D8ECFB;
}

/* Floating Cards */
.float-card {
  position: absolute;
  border-radius: var(--radius-lg);
  background: var(--white);
  padding: 12px 16px;
  box-shadow: var(--shadow-2xl);
  animation: float-card 5s ease-in-out infinite;
}

.float-card--delay {
  animation-delay: -2.3s;
}

@keyframes float-card {
  50% { transform: translateY(-11px); }
}

.float-card--left {
  bottom: 8px;
  left: 0;
}

.float-card--right {
  right: 0;
  top: 12px;
}

.float-card__inner {
  display: flex;
  align-items: center;
  gap: 12px;
}

.float-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #E8F3FD;
  color: var(--blue);
}

.float-card__label {
  font-size: 12px;
  color: #64748B;
}

.float-card__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--blue-deep);
}

.float-card__badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue-deep);
}

.float-card__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--orange);
}

/* =============================================
   LIBRARY SECTION
   ============================================= */
.library {
  background: var(--white);
  padding-top: 64px;
  padding-bottom: 64px;
}

.library__title {
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.035em;
  color: var(--blue-deep);
}

.library__toolbar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

/* Filter Buttons */
.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 16px;
  font-weight: 600;
  background: var(--white);
  color: var(--blue);
  transition: var(--transition);
}

.filter-btn[aria-pressed="true"] {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 8px 18px rgba(34,105,178,.2);
}

.filter-btn:hover:not([aria-pressed="true"]) {
  border-color: var(--blue);
  background: var(--soft);
}

/* Search */
.library__search-wrapper {
  position: relative;
  width: 100%;
}

.library__search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #94A3B8;
  pointer-events: none;
}

.library__search {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  padding: 12px 16px 12px 44px;
  font-size: 16px;
  color: var(--ink);
  transition: border-color var(--transition);
}

.library__search::placeholder {
  color: var(--muted);
  font-weight: 400;
}

.library__search:focus {
  border-color: var(--blue);
}

/* Count */
.library__count {
  margin-top: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
}

/* Card Grid */
.library__grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

/* Library Card */
.library-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--white);
  transition: transform var(--transition), box-shadow var(--transition);
}

.library-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 18px 40px rgba(18,63,120,.15);
}

.library-card.hidden { display: none; }

/* Item không có URL — vô hiệu hoá click */
.library-card__link.no-url {
  pointer-events: none;
}

.library-card__link {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* Thumbnail Screen */
.thumb-screen {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--white);
}

.thumb-visual {
  position: relative;
  height: 168px;
  overflow: hidden;
  background: #F1F5F9;
}

.thumb-visual__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.library-card:hover .thumb-visual__img {
  transform: scale(1.06);
}

/* Card Overlay */
.card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(18,63,120,.75);
  opacity: 0;
  transition: opacity .22s ease;
  z-index: 2;
}

.library-card:hover .card-overlay,
.library-card:focus-within .card-overlay {
  opacity: 1;
}

.card-overlay__label {
  border-radius: 8px;
  background: var(--white);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-deep);
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  transform: translateY(4px);
  transition: transform .22s ease;
}

.library-card:hover .card-overlay__label,
.library-card:focus-within .card-overlay__label {
  transform: translateY(0);
}

/* Card Body */
.library-card__body {
  padding: 16px;
}

.library-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.library-card__name {
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
}

/* Tags */
.tag {
  flex-shrink: 0;
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag--light {
  background: #E7F3FD;
  color: var(--blue);
}

.tag--standard {
  background: #FFF0E7;
  color: #C6530B;
}

/* Empty State */
.library__empty {
  display: none;
  margin-top: 36px;
  border-radius: var(--radius-lg);
  border: 1px dashed #B9D4EB;
  background: #F7FBFF;
  padding: 48px 24px;
  text-align: center;
}

.library__empty.show { display: block; }

.library__empty-icon {
  margin: 0 auto;
  color: var(--blue);
}

.library__empty-text {
  margin-top: 16px;
  font-weight: 700;
  font-size: 16px;
  color: var(--blue-deep);
}

/* Show More */
.library__more-wrapper {
  margin-top: 36px;
  text-align: center;
}

.library__more-btn {
  border-radius: 8px;
  padding: 12px 20px;
  font-weight: 700;
  font-size: 16px;
  background: #E7F3FD;
  color: var(--blue);
  transition: transform var(--transition);
}

.library__more-btn:hover {
  transform: translateY(-2px);
}

.hidden { display: none !important; }

.library__more-btn.hidden { display: none !important; }
.library__more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.library__more-btn.is-loading {
  pointer-events: none;
  opacity: 0.75;
}
.library__more-btn .btn-loading {
  display: none;
  align-items: center;
}
.library__more-btn.is-loading .btn-loading {
  display: inline-flex;
}

/* Loading effect from loading.io/css (lds-ring) */
.lds-ring, .lds-ring div { box-sizing: border-box; }
.lds-ring {
  display: inline-block;
  position: relative;
  width: 18px;
  height: 18px;
  vertical-align: middle;
}
.lds-ring div {
  box-sizing: border-box;
  display: block;
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 50%;
  animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  border-color: currentColor transparent transparent transparent;
}
.lds-ring div:nth-child(1) { animation-delay: -0.45s; }
.lds-ring div:nth-child(2) { animation-delay: -0.3s; }
.lds-ring div:nth-child(3) { animation-delay: -0.15s; }
@keyframes lds-ring {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.library-grid-loading {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 48px 0;
  width: 100%;
}
.library-grid-loading .lds-ring {
  width: 38px;
  height: 38px;
  color: var(--blue, #1377c9);
}
.library-grid-loading .lds-ring div {
  width: 38px;
  height: 38px;
  border-width: 3px;
}


/* =============================================
   REQUEST / PACKAGE SECTION
   ============================================= */
.request {
  background: var(--soft);
  padding-top: 64px;
  padding-bottom: 80px;
}

.request__title {
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.035em;
  color: var(--blue-deep);
}

.request__grid {
  display: grid;
  gap: 24px;
  margin-top: 36px;
}

/* Package Card */
.package-card {
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid rgba(34,105,178,.15);
  box-shadow: 0 16px 38px rgba(26,88,145,.08);
}

.package-card--light {
  background: var(--white);
}

.package-card--standard {
  background: var(--blue-deep);
  color: var(--white);
  border-color: transparent;
}

.package-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.package-card__label {
  border-radius: var(--radius-full);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
}

.package-card--light .package-card__label {
  background: #E7F3FD;
  color: var(--blue);
}

.package-card--standard .package-card__label {
  background: var(--white);
  color: var(--blue);
}

.package-card__icon {
  width: 25px;
  height: 25px;
}

.package-card--light .package-card__icon { color: var(--blue); }
.package-card--standard .package-card__icon { color: var(--orange); }

.package-card__title {
  margin-top: 24px;
  font-weight: 700;
  font-size: 19px;
}

.package-card--light .package-card__title { color: var(--blue-deep); }
.package-card--standard .package-card__title { color: var(--white); }

.package-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  border-radius: 8px;
  padding: 14px 20px;
  font-weight: 700;
  font-size: 16px;
  color: var(--white);
  transition: transform var(--transition);
}

.package-card__cta:hover { transform: translateY(-2px); }

.package-card--light .package-card__cta { background: var(--blue); }
.package-card--standard .package-card__cta { background: var(--orange); }

/* =============================================
   PAYMENT SECTION
   ============================================= */
.payment {
  background: var(--white);
  padding-top: 64px;
  padding-bottom: 80px;
}

.payment__panel {
  border-radius: var(--radius-xl);
  background: var(--soft);
  padding: 24px 36px;
}

.payment__title {
  font-weight: 700;
  font-size: 24px;
  color: var(--blue-deep);
}

.payment__qr-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  border-radius: 8px;
  padding: 14px 20px;
  font-weight: 700;
  font-size: 16px;
  background: var(--blue);
  color: var(--white);
  transition: transform var(--transition);
}

.payment__qr-btn:hover { transform: translateY(-2px); }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--blue-deep);
  color: var(--white);
}

.site-footer__inner {
  padding-top: 40px;
  padding-bottom: 40px;
}

.site-footer__logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.site-footer__copyright {
  margin-top: 20px;
  font-size: 16px;
  font-weight: 400;
  color: #DCEEFF;
}

/* =============================================
   QR MODAL
   ============================================= */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(10, 34, 66, .68);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.modal-backdrop.open { display: flex; }

.qr-modal {
  width: min(100%, 31rem);
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--radius-xl);
  background: var(--white);
  padding: 24px;
  box-shadow: var(--shadow-2xl);
  animation: modal-in .22s ease-out;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.qr-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.qr-modal__title {
  font-weight: 700;
  font-size: 24px;
  color: var(--blue-deep);
}

.qr-modal__status {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--muted);
}

.qr-modal__close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--line);
  color: var(--blue);
  transition: background var(--transition);
}

.qr-modal__close-btn:hover { background: var(--soft); }

.qr-modal__image-wrapper {
  margin-top: 24px;
  border-radius: var(--radius-lg);
  border: 1px dashed #B9D4EB;
  background: #F7FBFF;
  padding: 20px;
}

.qr-modal__image {
  margin: 0 auto;
  width: 100%;
  max-width: 250px;
  aspect-ratio: 1;
  border-radius: 8px;
  object-fit: cover;
}

.qr-modal__note {
  margin-top: 20px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--muted);
}

.qr-modal__close-bottom {
  margin-top: 24px;
  width: 100%;
  border-radius: 8px;
  padding: 12px 20px;
  font-weight: 700;
  font-size: 16px;
  background: var(--soft);
  color: var(--blue);
  transition: background var(--transition);
}

.qr-modal__close-bottom:hover { background: #D8ECFB; }

/* =============================================
   RESPONSIVE
   ============================================= */

/* Tablet and up */
@media (min-width: 640px) {
  .library__grid { grid-template-columns: repeat(2, 1fr); }
  .hero-screen { padding: 12px; }
  .float-card--left { bottom: 24px; }
  .float-card--right { top: 28px; }
}

/* Medium */
@media (min-width: 768px) {
  .hero-screen__body { min-height: 310px; }
  .request__grid { grid-template-columns: repeat(2, 1fr); }
  .payment__panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
  }
  .qr-modal { padding: 32px; }
}

/* Large Desktop */
@media (min-width: 1024px) {
  .container { padding-left: 32px; padding-right: 32px; }
  .hero__grid { grid-template-columns: .72fr 1.28fr; padding-top: 80px; padding-bottom: 80px; }
  .hero__visual { min-height: 390px; }
  .library { padding-top: 88px; padding-bottom: 88px; }
  .library__toolbar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .library__search-wrapper { width: 320px; }
  .library__grid { grid-template-columns: repeat(3, 1fr); }
  .request { padding-top: 80px; padding-bottom: 80px; }
  .payment { padding-top: 80px; padding-bottom: 80px; }
  .payment__panel { padding: 36px 40px; }
  .package-card { padding: 32px; }
}

/* XL Desktop */
@media (min-width: 1280px) {
  .library__grid { grid-template-columns: repeat(4, 1fr); }
}

/* Mobile Title */
@media (max-width: 639px) {
  .hero__title { font-size: 38px; }
}