/* ==============================================
   IMPORT & RESET STYLES
============================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css?family=Roboto+Slab');

/* Universal reset */
* {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
}

/* Body base */
body {
  background: #3b5aaa;
  color: rgba(40, 40, 40);
  line-height: 1.6;
  font-family: 'Roboto Slab', sans-serif;
  text-align: justify;
  margin: 0;
}

/* ==============================================
   TYPOGRAPHY
============================================== */

/* Headings */
h1, h2, h3, h4 {
  font-weight: bold;
  margin: 0;
}

h2 {
  text-align: center;
  font-size: 2em;
  line-height: initial;
}

h3 {
  font-size: 1.25em;
}

/* Links */
a {
  color: #3b5aaa;
  text-decoration: none;
}

a:hover {
  color: white;
}

/* ==============================================
   MAIN LAYOUT CONTAINERS
============================================== */

/* Main container */
.container {
  margin: 0 auto;
  padding: 1em;
  display: flex;
  flex-direction: column;
  max-width: 1080px;
  height: fit-content;
  transform-origin: 50% 50%;
  will-change: transform;
}

/* Grid wrapper */
.wrapper > * {
  padding: 1em;
}

/* Header section */
.header {
  padding: 0 0 0.5em 0 !important;
}

.brand {
  color: #ffffff;
  font-weight: bold;
  font-size: 1.8em;
}

.note {
  margin-top: 1em;
  font-size: 0.9em;
}

/* ==============================================
   SIDEBAR SECTIONS
============================================== */

/* Disabled sections - Kept as comments for reference */
.about-company,
.contact-info {
  display: none !important;
}   


/* About company section */
.about-company {
  background: #C3C9DD;
}

.about-company h3 {
  text-align: center;
}

.about {
  font-size: 1em;
  color: rgba(40, 40, 40, 0.9);
  word-break: break-word;
  max-height: 20em;
  overflow-y: auto;
  scrollbar-color: #C3C9DD #C3C9DD;
  scrollbar-width: none;
}

/* Scrollbar styles for about section */
.about::-webkit-scrollbar {
  width: 0;
}

.about::-webkit-scrollbar-thumb {
  background-color: #C3C9DD;
  border-radius: 1em;
}

.about::-webkit-scrollbar-track {
  background-color: #C3C9DD;
  border-radius: 1em;
}

.about::-webkit-scrollbar-thumb:hover {
  box-shadow: inset 0 0 0.25em grey;
}

.about::-webkit-scrollbar-track:hover {
  background-color: #C3C9DD;
}

/* Contact information section */
.contact-info {
  background: #C3C9DD;
  border-bottom-left-radius: 0.25em;
  border-bottom-right-radius: 0.25em;
}

.contact-info h3 {
  text-align: center;
}

.contact {
  font-size: 1em;
  color: #3b5aaa;
  word-break: break-word;
}

/* ==============================================
   FORM CONTAINER
============================================== */

/* Main form section */
.subscribe {
  background: #dcdfea;
  border-top-left-radius: 0.25em;
  border-top-right-radius: 0.25em;
}

.subscribe .subtitle {
  text-align: center;
  color: rgba(40, 40, 40, 0.7);
}

/* Form grid layout */
.subscribe form {
  display: grid;
  grid-template-columns: 3fr 2fr;
  grid-gap: 1em;
}

.subscribe form .full {
  grid-column: 1/3;
  display: flex;
  gap: 1em;
}

/* Disabled form div styles - Kept as comment
.subscribe form div {
  margin: 0;
  min-width: 0;
} */

/* ==============================================
   INPUT CONTROLS
============================================== */

/* Base input and select styles */
.subscribe form input,
.subscribe form select {
  width: 100%;
  padding: 0.6em;
  border: 1px solid #7e7e7e;
  border-radius: 0.25em;
  color: rgba(40, 40, 40, 0.8) !important;
  font-family: inherit;
  font-size: 1em;
  background-color: white;
}

/* Custom select dropdown arrow */
.subscribe form select {
  appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="6"><path fill="%237e7e7e" d="M0 0h12l-6 6z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 0.7em top 50%;
  background-size: 12px;
}

/* ==============================================
   BUTTON STYLES
============================================== */

/* Common button properties */
.subscribe form button,
.select-files-btn,
.select-folders-btn,
.clear-all-btn,
.remove-btn,
.file-upload-remove-btn {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Base form buttons */
.subscribe form button {
  font-family: inherit;
  display: block;
  cursor: pointer;
}

/* Submit button */
.subscribe form button.submit {
  color: white;
  font-size: 1.25em;
  font-weight: bold;
  width: 100%;
  padding: 0.45em;
  border-radius: 0.25em;
  border: 2px solid #3b5aaa;
  background-color: #4d6ddd;
}

/* Progress text nhỏ hơn khi disabled */
.subscribe form button.submit:disabled {
  font-size: 1em;
  line-height: 1.4;
}
.subscribe form button.submit:hover,
.subscribe form button.submit:focus {
  background: #3b5aaa;
}

/* Reset button */
.subscribe form button.reset {
  color: white;
  font-size: 1.25em;
  font-weight: bold;
  width: auto;
  min-width: 4.5em;
  padding: 0.45em 1em;
  border-radius: 0.25em;
  border: 2px solid #b91c1c;
  background-color: #dc2626;
  flex-shrink: 0;
}

.subscribe form button.reset:hover,
.subscribe form button.reset:focus {
  background: #b91c1c;
}

/* Common button hover effects */
.subscribe form button:hover,
.subscribe form button:focus {
  color: #ffffff;
  outline: 0;
  transition: background-color 2s ease-out;
  box-shadow: 0px 1em 2em -1em rgba(0, 0, 0, 0.6);
}

/* File selection buttons */
.select-files-btn,
.select-folders-btn {
  width: 100%;
  padding: 0.5em;
  border: 2px solid #6b7280 !important;
  border-radius: 0.25em;
  background-color: #6b7280 !important;
  color: white !important;
  font-family: inherit;
  font-size: 1em;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s ease-out !important;
}

.select-files-btn:hover,
.select-folders-btn:hover {
  background-color: #4b5563 !important;
  box-shadow: 0px 1em 2em -1em rgba(0, 0, 0, 0.6) !important;
}

/* Small remove buttons */
.remove-btn,
.file-upload-remove-btn {
  color: red;               
  font-size: 1.5rem;        /* Muốn to nhỏ tùy ý */
  font-weight: bold;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, color 0.2s ease;
  background: none;         

  display: inline-flex;      /* Flexbox inline */
  align-items: center;       /* Căn giữa theo trục dọc */
  justify-content: center;   /* Căn giữa theo trục ngang */
}

.remove-btn:hover,
.file-upload-remove-btn:hover {
  transform: scale(1.2);     /* Phóng to nhẹ khi hover */
  color: darkred !important;   /* ép không bị override */
  background: none !important;
}

/* Clear all button */
.clear-all-btn {
  font-size: 0.9em;
  color: #dc2626;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.2em 0.5em;
  border-radius: 0.25em;
}

.clear-all-btn:hover {
  color: #b91c1c;
  background-color: #f8fafc;
}

/* ==============================================
   FILE UPLOAD INTERFACE
============================================== */

/* Drop zone and buttons */
.button-zone {
  display: flex;
  flex-direction: column;
  gap: 1em;
}

.drop-zone {
  border: 2px dashed #cbd5e1;
  text-align: center;
  cursor: pointer;
  background-color: #f8fafc;
  width: 100%;
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.drop-zone.dragover {
  border-color: #3b82f6;
  background-color: #eff6ff;
}

.drop-zone-icon {
  width: 3rem;
  height: 3rem;
}

.drop-zone-text {
  color: #9ca3af;
  font-size: 1em;
  padding: 1em;
}

/* File list display */
.selected-files-header {
  font-size: 1em;
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.5em;
  width: 100%;
}

.files-list {
  max-height: 10rem;
  overflow-y: auto;
  padding: 0.5em;
  background-color: #f8fafc;
  width: 100%;
  box-sizing: border-box;
  border-radius: 0.5em;
}

.files-list-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5em;
  width: 100%;
}

.files-count {
  font-size: 0.9em;
  color: #4b5563;
}

/* Individual file item */
.file-item {
  animation: slideIn 0.3s ease-out;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem;
  border-radius: 0.25rem;
  margin-bottom: 0.25rem;
}

.file-item .file-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.file-item .file-name {
  font-size: 0.875rem;
  color: #374151;
}

.file-item .file-size {
  font-size: 0.75rem;
  color: #6b7280;
  margin-left: 0.5rem;
}

.file-item .file-icon {
  color: #3b82f6;
  margin-right: 0.5rem;
}

.file-item .folder-icon {
  color: #10b981;
  margin-right: 0.5rem;
}

/* ==============================================
   FILE TREE STRUCTURE
============================================== */

/* Tree container */
.file-upload-tree {
  margin-left: 1rem;
  padding-left: 1rem;
  border-left: 2px dotted #d1d5db;
}

/* Tree items */
.file-upload-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 0.25rem;
  animation: file-upload-slideIn 0.3s ease-out;
}

.file-upload-folder {
  flex-direction: column;
  align-items: stretch;
}

.file-upload-folder-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  flex-wrap: nowrap;
}

.file-upload-info {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.file-upload-icon-blue {
  color: #3b82f6;
}

.file-upload-icon-green {
  color: #10b981;
}

.file-upload-name {
  font-size: 0.95em;
  font-weight: 500;
}

.file-upload-size {
  font-size: 0.75em;
  color: #6b7280;
}


/* ==============================================
   ANIMATIONS
============================================== */

@keyframes slideIn {
  from {
	opacity: 0;
	transform: translateY(-10px);
  }
  to {
	opacity: 1;
	transform: translateY(0);
  }
}

@keyframes file-upload-slideIn {
  from {
	opacity: 0;
	transform: translateY(-10px);
  }
  to {
	opacity: 1;
	transform: translateY(0);
  }
}

@keyframes zoom {
  0% {
	transform: scale(.5);
	opacity: 0;
  }
  50% {
	opacity: 1;
  }
  to {
	opacity: 0;
	transform: scale(1);
  }
}

@keyframes lucidgenzalo {
  0% to {
	transform: rotate(-25deg);
  }
  50% {
	transform: rotate(25deg);
  }
}


/* ============================================
   🔄 UPLOAD MODE SWITCH
   ============================================ */
.switch-container {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  cursor: pointer;
  user-select: none;
}

.switch-container input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-container input[type="checkbox"]:checked  {
  background-color: #2563eb;
}

.switch-container input[type="checkbox"]:checked {
  transform: translateX(30px);
}

.switch-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: #4a4a4a;
}

.mode-local,
.mode-link {
  padding: 6px 12px;
  border-radius: 6px;
}

.mode-local {
  background-color: #dbeafe;
  color: #2563eb;
  font-weight: bold;
}

.mode-link {
  background-color: #f3f4f6;
  color: #6b7280;
  font-weight: bold;
}

.switch-container input[type="checkbox"]:checked ~ .switch-label .mode-local {
  background-color: #f3f4f6;
  color: #6b7280;
  font-weight: bold;
}

.switch-container input[type="checkbox"]:checked ~ .switch-label .mode-link {
  background-color: #e8f5e8;
  color: #5a8a6a;
  font-weight: bold;
}

/* Hover effect */
.switch-container input[type="checkbox"]:checked:hover  {
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 0 0 4px rgba(37, 99, 235, 0.1);
}

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

/* Mobile layout - maintains v1.0 natural behavior */
@media screen and (max-width: 640px) {
  .switch-label {
	font-size: 13px;
	gap: 8px;
  }
  
  .mode-local,
  .mode-link {
	font-size: 12px;
  }
  
  .switch-container input[type="checkbox"]:checked {
	transform: translateX(24px);
  }
}


/* Mobile layout - maintains v1.0 natural behavior */
@media (max-width: 639px) {
  html, body {
	display: block;
	height: auto;
	margin: 0;
	padding: 0;
  }
  
  .container {
	width: 100%;
	min-width: 440px;
	padding: 1em;
	transform: scale(0.96);
	transform-origin: center top;
  }

  h1.brand, h2 {
	font-size: 1.5em;
  }
  
  .contact-info table {
	margin: 0 auto;
  }
}

/* Desktop layout - grid system */
@media (min-width: 640px) {
  html {
	height: 100%;
	margin: 0;
	padding: 0;
  }
  
  body {
	height: 100vh;
	margin: 0;
	padding: 0;
	overflow-x: hidden;
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	justify-content: flex-start;
	align-items: center;
  }

  .wrapper {
	display: grid;
	justify-content: center;
	height: fit-content;
	grid-template-rows: auto 1fr auto;
	grid-template-columns: repeat(3, 1fr);
	grid-template-areas:
	  "header header header"
	  "subscribe subscribe about"
	  "subscribe subscribe info";
  }

  /* Layout without sidebar */
  .wrapper.no-sidebar {
	grid-template-columns: 1fr;
	grid-template-areas:
	  "header"
	  "subscribe"
	  "subscribe";
  }

  .wrapper.no-sidebar .container {
	max-width: 600px;
  }

  /* Grid area assignments */
  .header {
	grid-area: header;
  }
  
  .about-company {
	grid-area: about;
	padding: 2em;
	border-radius: 0 0.5em 0 0;
  }
  
  .contact-info {
	grid-area: info;
	padding: 0 2em 2em 2em;
	border-radius: 0 0 0.5em 0;
  }
  
  .subscribe {
	grid-area: subscribe;
	padding: 2em;
	border-radius: 0.5em 0 0 0.5em;
  }

  /* Desktop typography adjustments */
  .brand {
	font-size: 2.25em;
  }
  
  .about-company h3,
  .contact-info h3 {
	text-align: left;
  }
}

/* ==============================================
   MODAL DIALOG
============================================== */

/* Modal overlay */
#modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

#modal.hidden {
  display: none;
}

/* Modal content */
#modal .modal-content {
  background-color: white;
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  max-width: 24rem;
  width: 100%;
  margin: 1rem;
}

#modalTitle {
  font-size: 1.125rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

#modalTitle.success {
  color: #166534;
}

#modalTitle.error {
  color: #991b1b;
}

#modalMessage {
  margin-bottom: 1rem;
  color: #374151;
  white-space: pre-line;
  word-break: break-word;    /* Ngắt từ dài */
  overflow-wrap: break-word; /* Backup cho trình duyệt cũ */
  white-space: pre-wrap;     /* Giữ nguyên xuống dòng \n */
  max-width: 100%;           /* Không vượt quá modal */
}

/* Nếu có link trong modal */
#modalMessage a {
  word-break: break-all;     /* Link dài sẽ ngắt mạnh hơn */
  display: inline-block;
  max-width: 100%;
}

#modalClose {
  width: 100%;
  background-color: #f3f4f6;
  color: #1f2937;
  padding: 0.5rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

#modalClose:hover {
  background-color: #e5e7eb;
}

/* Modal Footer - Container cho buttons */
#modalFooter {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Nút trong modal (class chung) */
.modal-btn {
  flex: 1;
  background-color: #f3f4f6;
  color: #1f2937;
  padding: 0.5rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.2s;
}

.modal-btn:hover {
  background-color: #e5e7eb;
}

/* Nút primary/action (nếu cần) */
.modal-btn.primary {
  background-color: #2563eb;
  color: white;
}

.modal-btn.primary:hover {
  background-color: #1d4ed8;
}

/* Nút danger/delete (nếu cần) */
.modal-btn.danger {
  background-color: #dc2626;
  color: white;
}

.modal-btn.danger:hover {
  background-color: #b91c1c;
}

/* Single button - full width */
#modalFooter .modal-btn:only-child {
  width: 100%;
}


/* Upload Mode Containers */
#uploadMode1,
#uploadMode2 {
  display: flex;
  gap: 1em;
  width: 100%;
}

/* Drive Link Zone */
.drive-link-zone {
  width: 100%;
  border-radius: 0.5rem;
 display: flex;
}

.drive-link-input {
  width: 100%;
  padding: 12px;
  border: 2px solid #d0d5dd;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s ease;
}

.drive-link-input:focus {
  outline: none;
  border-color: #73a682;
  box-shadow: 0 0 0 3px rgba(115, 166, 130, 0.1);
}


/* ==============================================
   ZALO WIDGET STYLES
============================================== */

/* Responsive visibility */
@media (max-width: 480px) {
  .zalo_desktop {
	display: none;
  }
}

@media (min-width: 481px) {
  .zalo_mobile {
	display: none;
  }
}

/* Position and layout */
.jscroll-to-top {
  bottom: 100px;
}

.fcta-zalo-vi-tri-nut {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 999;
}

/* Button styling */
.fcta-zalo-nen-nut,
div.fcta-zalo-mess {
  box-shadow: 0 1px 6px rgba(0, 0, 0, .06), 0 2px 32px rgba(0, 0, 0, .16);
}

.fcta-zalo-nen-nut {
  width: 50px;
  height: 50px;
  text-align: center;
  color: #fff;
  background: #0068ff;
  border-radius: 50%;
  position: relative;
}

.fcta-zalo-nen-nut::after,
.fcta-zalo-nen-nut::before {
  content: "";
  position: absolute;
  border: 1px solid #0068ff;
  background: #0068ff80;
  z-index: -1;
  left: -20px;
  right: -20px;
  top: -20px;
  bottom: -20px;
  border-radius: 50%;
  animation: zoom 1.9s linear infinite;
}

.fcta-zalo-nen-nut::after {
  animation-delay: .4s;
}

.fcta-zalo-ben-trong-nut,
.fcta-zalo-ben-trong-nut i {
  transition: all 1s;
}

.fcta-zalo-ben-trong-nut {
  position: absolute;
  text-align: center;
  width: 60%;
  height: 60%;
  left: 10px;
  bottom: 25px;
  line-height: 70px;
  font-size: 25px;
  opacity: 1;
}

.fcta-zalo-ben-trong-nut i {
  animation: lucidgenzalo 1s linear infinite;
}

.fcta-zalo-ben-trong-nut svg path {
  fill: #fff;
}

/* Hover effects */
.fcta-zalo-nen-nut:hover .fcta-zalo-ben-trong-nut,
.fcta-zalo-text {
  opacity: 0;
}

.fcta-zalo-nen-nut:hover i {
  transform: scale(.5);
  transition: all .5s ease-in;
}

/* Text styling */
.fcta-zalo-text a {
  text-decoration: none;
  color: #fff;
}

.fcta-zalo-text {
  position: absolute;
  top: 6px;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  transform: scaleX(-1);
  transition: all .5s;
  line-height: 1.5;
  font-family: Roboto;
}

.fcta-zalo-nen-nut:hover .fcta-zalo-text {
  transform: scaleX(1);
  opacity: 1;
}

/* Message box */
div.fcta-zalo-mess {
  position: fixed;
  bottom: 29px;
  right: 50px;
  z-index: 99;
  background: #fff;
  padding: 7px 30px 7px 15px;
  color: #0068ff;
  border-radius: 50px;
  font-weight: 700;
  font-size: 15px;
}

.fcta-zalo-mess span {
  color: #0068ff !important;
  font-family: Roboto;
  line-height: 1.5;
}