/* ==========================================================================
   Madan Mohan Malaviya University of Technology, Gorakhpur
   Ph.D. Programme Admission Portal Stylesheet
   Responsive, Modern, Accessible Academic Theme
   ========================================================================== */

:root {
  --primary: #1a365d;        /* MMMUT Deep Navy Blue */
  --primary-dark: #0f233d;
  --primary-light: #2a4e80;
  --accent: #800020;         /* University Crimson Burgundy */
  --accent-light: #a31535;
  --gold: #d4af37;           /* Academic Gold */
  
  --bg-body: #f4f7f6;
  --bg-card: #ffffff;
  --bg-muted: #f8fafc;
  
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --border: #e2e8f0;
  --border-focus: #3b82f6;
  
  --success: #059669;
  --success-bg: #ecfdf5;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --info: #0284c7;
  --info-bg: #f0f9ff;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Merriweather", Georgia, "Times New Roman", serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  overflow-x: hidden;
  width: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
}

/* Container */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* University Main Header */
.uni-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px 0 20px;
}

.uni-header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}

.uni-logo-img {
  width: 85px;
  height: 85px;
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.uni-titles {
  flex-grow: 1;
}

.uni-title-main {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.uni-location {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 4px;
}

.uni-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 2px;
}

.programme-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  margin-top: 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border-left: 5px solid var(--gold);
}

.programme-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.programme-session {
  font-size: 0.9rem;
  color: #cbd5e1;
  margin-top: 4px;
}

/* Stepper Progress Bar */
.stepper-container {
  margin: 30px 0 24px;
}

.stepper-nav {
  display: flex;
  justify-content: space-between;
  position: relative;
  list-style: none;
}

.stepper-nav::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 30px;
  right: 30px;
  height: 3px;
  background-color: var(--border);
  z-index: 1;
}

.stepper-progress-fill {
  position: absolute;
  top: 20px;
  left: 30px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  z-index: 2;
  transition: width 0.4s ease;
  width: 0%;
}

.step-item {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  width: 18%;
  text-align: center;
}

.step-circle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--bg-card);
  border: 3px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.step-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 8px;
  transition: var(--transition);
}

.step-item.active .step-circle {
  border-color: var(--accent);
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 0 0 4px rgba(128, 0, 32, 0.2);
}

.step-item.active .step-title {
  color: var(--accent);
  font-weight: 700;
}

.step-item.completed .step-circle {
  border-color: var(--success);
  background-color: var(--success);
  color: #ffffff;
}

.step-item.completed .step-title {
  color: var(--success);
}

/* Main Form Card */
.form-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  padding: 36px 40px;
  margin-bottom: 40px;
}

/* Step Panes */
.step-pane {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.step-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section Header */
.section-header {
  border-bottom: 2px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-badge {
  background: var(--primary-light);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.grid-photo-split {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 32px;
  align-items: start;
}

/* Form Groups & Inputs */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-label .req {
  color: var(--danger);
  margin-left: 2px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-control {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-main);
  background-color: #ffffff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

/* Phone input group for responsive country code + number */
.phone-input-group {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 100%;
}

.phone-input-group .phone-code {
  flex: 0 0 85px;
  width: 85px;
  min-width: 75px;
  text-align: center;
}

.phone-input-group .phone-number {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
}

/* Responsive PIN input */
.pin-form-group {
  max-width: 250px;
  width: 100%;
}

@media (max-width: 640px) {
  .pin-form-group {
    max-width: 100%;
  }
}

/* Table scroll indicator for touch screens */
.table-scroll-hint {
  display: none;
  font-size: 0.76rem;
  color: var(--primary);
  background: #eff6ff;
  border: 1px dashed #93c5fd;
  border-radius: var(--radius-sm);
  padding: 5px 12px;
  margin-bottom: 8px;
  text-align: center;
  font-weight: 600;
}

@media (max-width: 850px) {
  .table-scroll-hint {
    display: block;
  }
}

/* Mobile Stepper Current Step Badge */
.mobile-step-indicator {
  display: none;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 10px;
  padding: 5px 12px;
  background: #ffffff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.15);
}

.form-control.is-invalid {
  border-color: var(--danger);
  background-color: #fffaf0;
}

.invalid-feedback {
  color: var(--danger);
  font-size: 0.78rem;
  margin-top: 4px;
  display: none;
}

.form-control.is-invalid + .invalid-feedback,
.is-invalid ~ .invalid-feedback {
  display: block;
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

/* Photo Box Dropzone */
.photo-uploader {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
  background-color: var(--bg-muted);
  transition: var(--transition);
  position: relative;
  cursor: pointer;
}

.photo-uploader:hover, .photo-uploader.dragover {
  border-color: var(--accent);
  background-color: #fdf2f4;
}

.photo-preview-box {
  width: 140px;
  height: 175px;
  margin: 0 auto 10px;
  background-color: #e2e8f0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.photo-preview-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.photo-preview-placeholder {
  color: var(--text-light);
  font-size: 0.75rem;
  text-align: center;
  padding: 8px;
}

.photo-upload-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
}

/* File Upload Controls */
.file-upload-wrapper {
  position: relative;
}

.file-dropzone {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  background-color: var(--bg-muted);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.file-dropzone:hover {
  border-color: var(--primary);
  background-color: #f0f4f9;
}

.file-dropzone-info {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}

.file-icon {
  font-size: 1.4rem;
  color: var(--primary-light);
}

.file-name-display {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-file-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  pointer-events: none;
}

/* Signature Box Upload */
.signature-box {
  background-color: var(--bg-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.signature-preview-container {
  width: 220px;
  height: 80px;
  border: 1px dashed var(--border);
  background: #ffffff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.signature-preview-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: none;
}

.signature-meta {
  flex-grow: 1;
}

/* Checkbox Switch & Radios */
.checkbox-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  cursor: pointer;
  user-select: none;
}

.checkbox-inline input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Tables for Qualifications and Experiences */
.table-responsive {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  display: block;
  position: relative;
}

.table-custom {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.875rem;
  background-color: #ffffff;
}

.table-custom th {
  background-color: #f1f5f9;
  color: var(--primary-dark);
  font-weight: 700;
  text-align: left;
  padding: 12px 14px;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

.table-custom td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.table-custom tr:last-child td {
  border-bottom: none;
}

.table-custom .form-control {
  padding: 6px 10px;
  font-size: 0.85rem;
  border-radius: 4px;
}

.btn-table-action {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--danger);
  font-size: 1.1rem;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}

.btn-table-action:hover {
  background-color: var(--danger-bg);
}

.table-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 20px;
}

/* Publications Grid & Badges */
.pubs-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr) 1.2fr;
  gap: 14px;
  background-color: var(--bg-muted);
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  align-items: center;
}

.pub-counter-card {
  text-align: center;
}

.pub-counter-card label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
  height: 36px;
}

.total-pub-badge {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #ffffff;
  padding: 12px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.total-pub-badge .total-num {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
}

.total-pub-badge .total-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* Declaration Box */
.declaration-card {
  background: #fdfaf6;
  border: 1.5px solid #fed7aa;
  border-left: 5px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 22px;
  margin-bottom: 24px;
}

.declaration-text {
  font-size: 0.95rem;
  color: #451a03;
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 16px;
}

/* Step Navigation Footer */
.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  gap: 16px;
  flex-wrap: wrap;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 1.5px solid transparent;
  font-family: inherit;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--accent);
  color: #ffffff;
}

.btn-accent:hover:not(:disabled) {
  background-color: var(--accent-light);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border);
  color: var(--text-main);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--bg-muted);
  border-color: var(--text-light);
}

.btn-outline-primary {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline-primary:hover:not(:disabled) {
  background-color: #f0f4f9;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.82rem;
}

/* Alert Boxes */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-size: 0.88rem;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.alert-danger {
  background-color: var(--danger-bg);
  border: 1px solid #fecaca;
  color: #991b1b;
}

.alert-success {
  background-color: var(--success-bg);
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.alert-info {
  background-color: var(--info-bg);
  border: 1px solid #bae6fd;
  color: #0369a1;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 35, 61, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 16px;
}

.loading-subtext {
  color: #cbd5e1;
  font-size: 0.85rem;
  margin-top: 4px;
}

/* Confirmation / Success Screen */
.success-screen {
  text-align: center;
  padding: 40px 20px;
}

.success-icon-badge {
  width: 76px;
  height: 76px;
  background-color: var(--success-bg);
  color: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  margin: 0 auto 20px;
  border: 3px solid #6ee7b7;
}

.success-title {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.success-desc {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 24px;
  font-size: 0.95rem;
}

.app-ref-card {
  display: inline-block;
  background-color: var(--bg-muted);
  border: 2px dashed var(--primary);
  border-radius: var(--radius-md);
  padding: 16px 32px;
  margin-bottom: 30px;
}

.app-ref-card .ref-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.app-ref-card .ref-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.success-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Review Step Formatting */
.review-block {
  background-color: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.review-block-header {
  font-weight: 700;
  color: var(--primary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 20px;
  font-size: 0.88rem;
}

.review-item-label {
  font-weight: 600;
  color: var(--text-muted);
}

.review-item-val {
  font-weight: 500;
  color: var(--text-main);
}

/* Footer */
.uni-footer {
  margin-top: auto;
  background: #0f233d;
  color: #94a3b8;
  font-size: 0.82rem;
  padding: 20px 0;
  border-top: 3px solid var(--gold);
  text-align: center;
}

/* ==========================================================================
   Comprehensive Mobile & Tablet Responsiveness
   ========================================================================== */

@media (max-width: 900px) {
  .pubs-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .total-pub-badge {
    grid-column: span 3;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 12px;
  }

  .form-card {
    padding: 24px 16px;
    margin-bottom: 24px;
    border-radius: var(--radius-md);
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .grid-photo-split {
    display: flex;
    flex-direction: column-reverse;
    gap: 20px;
  }

  .photo-uploader {
    max-width: 220px;
    margin: 0 auto;
  }

  .photo-preview-box {
    margin: 0 auto 10px;
  }

  .stepper-nav {
    padding: 0 6px;
  }

  .step-circle {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
  }

  .uni-header {
    padding: 20px 0 16px;
  }

  .uni-header-inner {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .uni-logo-img {
    width: 72px;
    height: 72px;
  }

  .uni-title-main {
    font-size: 1.25rem;
  }

  .programme-banner {
    padding: 12px 14px;
    margin-top: 14px;
  }

  .programme-title {
    font-size: 1.05rem;
  }

  .signature-box {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }

  .signature-preview-container {
    width: 100%;
    max-width: 100%;
  }

  .signature-meta .btn {
    width: 100%;
  }

  .review-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .review-block-header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .review-block-header .btn {
    width: 100%;
  }

  .form-footer {
    flex-direction: column-reverse;
    gap: 12px;
    margin-top: 24px;
    padding-top: 18px;
  }

  .footer-left, .footer-right {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .btn {
    width: 100%;
    min-height: 44px;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 8px;
  }

  .form-card {
    padding: 18px 12px;
  }

  .section-header {
    margin-bottom: 20px;
    padding-bottom: 10px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .section-title {
    font-size: 1.15rem;
  }

  .step-title {
    display: none;
  }

  .stepper-nav::before, .stepper-progress-fill {
    top: 16px;
    left: 14px;
    right: 14px;
  }

  .step-circle {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
    border-width: 2px;
  }

  .pubs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 12px 10px;
  }

  .total-pub-badge {
    grid-column: span 2;
  }

  .file-dropzone {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    gap: 10px;
    padding: 12px 10px;
  }

  .file-dropzone-info {
    flex-direction: column;
    text-align: center;
  }

  .file-name-display {
    max-width: 100%;
    white-space: normal;
  }

  .btn-file-select {
    width: 100%;
    padding: 8px;
  }
}

@media (max-width: 380px) {
  .pubs-grid {
    grid-template-columns: 1fr;
  }

  .total-pub-badge {
    grid-column: span 1;
  }

  .uni-title-main {
    font-size: 1.1rem;
  }

  .form-control {
    font-size: 0.9rem;
    padding: 8px 10px;
  }
}

/* ==========================================================================
   Official Word Document Replica Preview Modal (Responsive & Mobile-Ready)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(5px);
  z-index: 10000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: 16px 8px;
  animation: fadeIn 0.2s ease-out;
  box-sizing: border-box;
}

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

.modal-dialog {
  background-color: #f1f5f9;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 880px;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  margin: 10px auto;
  box-sizing: border-box;
}

.modal-header {
  background-color: #ffffff;
  padding: 14px 20px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 10;
  box-sizing: border-box;
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.modal-body {
  padding: 20px 10px;
  background-color: #94a3b8;
  display: flex;
  justify-content: center;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
}

/* Paper Sheet Layout */
.doc-preview-paper {
  background: #ffffff;
  width: 100%;
  max-width: 820px;
  padding: 40px 48px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  font-family: "Times New Roman", Times, Georgia, serif;
  font-size: 13.5px;
  line-height: 1.45;
  color: #000000;
  position: relative;
  box-sizing: border-box;
  overflow-x: hidden;
}

.doc-preview-logo {
  width: 75px;
  height: 75px;
  object-fit: contain;
  margin: 0 auto 8px;
  display: block;
}

.doc-uni-title {
  text-align: center;
  font-size: 15px;
  font-weight: bold;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.25;
}

.doc-uni-location {
  text-align: center;
  font-size: 13px;
  font-weight: bold;
  margin-top: 3px;
}

.doc-uni-type {
  text-align: center;
  font-size: 12px;
  font-style: italic;
  margin-top: 2px;
}

.doc-form-title {
  text-align: center;
  font-size: 13px;
  font-weight: bold;
  margin: 14px 0 18px;
  line-height: 1.35;
}

.doc-top-split {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
  box-sizing: border-box;
}

.doc-top-left {
  flex-grow: 1;
  min-width: 0;
}

.doc-photo-box {
  width: 115px;
  height: 145px;
  border: 1px solid #000000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 10.5px;
  padding: 4px;
  background-color: #fafafa;
  flex-shrink: 0;
  overflow: hidden;
  box-sizing: border-box;
}

.doc-photo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.doc-field-line {
  margin-bottom: 7px;
  line-height: 1.4;
  word-break: break-word;
}

.doc-val {
  font-weight: bold;
  color: #000000;
  padding: 0 4px;
  border-bottom: 1px solid #000000;
  min-width: 50px;
  display: inline-block;
  word-break: break-word;
}

.doc-dots {
  color: #555555;
  letter-spacing: 1px;
}

.doc-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 8px 0;
  box-sizing: border-box;
}

.doc-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  border: 1px solid #000000;
  table-layout: fixed;
  box-sizing: border-box;
}

.doc-table th, .doc-table td {
  border: 1px solid #000000;
  padding: 4px 6px;
  font-size: 11.5px;
  vertical-align: top;
  word-wrap: break-word;
}

.doc-table th {
  font-weight: bold;
  text-align: center;
  background-color: #f7f7f7;
}

.doc-table td.text-center {
  text-align: center;
}

.doc-table td.text-bold {
  font-weight: bold;
}

.doc-notes {
  font-size: 11px;
  font-style: italic;
  margin-top: 4px;
  line-height: 1.35;
}

.doc-declaration {
  margin-top: 16px;
  font-size: 12.5px;
  line-height: 1.4;
  text-align: justify;
}

.doc-declaration-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: 22px;
  padding-top: 8px;
  flex-wrap: wrap;
  gap: 16px;
}

.doc-sign-wrapper {
  text-align: center;
  min-width: 160px;
}

.doc-sign-img {
  max-width: 150px;
  max-height: 50px;
  object-fit: contain;
  margin-bottom: 4px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 640px) {
  .doc-preview-paper {
    padding: 20px 14px;
    font-size: 12px;
  }
  .doc-top-split {
    flex-direction: column-reverse;
    align-items: center;
  }
  .doc-photo-box {
    margin: 0 auto;
  }
  .doc-declaration-footer {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .modal-header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .modal-actions {
    justify-content: stretch;
  }
  .modal-actions .btn {
    flex: 1;
  }
}