@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

/* ─── RESET & BASE SYSTEM ─── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg-app: #020617; /* Slate 950 for premium dark depth */
  --bg-card: rgba(15, 23, 42, 0.55); /* Clean dark glass */
  --bg-card-hover: rgba(20, 29, 51, 0.65);
  --bg-input: rgba(15, 23, 42, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(6, 182, 212, 0.35);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --primary-color: #06b6d4;
  --primary-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --primary-hover: linear-gradient(135deg, #22d3ee 0%, #60a5fa 100%);
  --success-color: #10b981;
  --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --error-color: #f43f5e;
  --error-gradient: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --card-radius: 24px; /* Softer, modern corners */
  --input-radius: 14px;
}

body {
  height: 100%;
  font-family: var(--font-main);
  background: var(--bg-app);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  overflow-y: scroll;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: 
    radial-gradient(at 0% 0%, rgba(6, 182, 212, 0.12) 0px, transparent 45%),
    radial-gradient(at 100% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 45%),
    radial-gradient(at 50% 100%, rgba(59, 130, 246, 0.06) 0px, transparent 55%);
  pointer-events: none;
  animation: bg-pulse 12s ease-in-out infinite alternate;
}

@keyframes bg-pulse {
  0% { opacity: 0.8; }
  100% { opacity: 1.1; }
}

/* ─── CUSTOM SCROLLBAR ─── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.3);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ─── HEADER ─── */
.header {
  background: rgba(2, 6, 23, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
}

.header-logo {
  width: 42px;
  height: 42px;
  background: var(--primary-gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
  animation: logo-float 3s ease-in-out infinite alternate;
}

@keyframes logo-float {
  0% { transform: translateY(0); }
  100% { transform: translateY(-3px); }
}

.header-text {
  margin-left: 14px;
  flex: 1;
}

.header-text h1 {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-text p {
  color: var(--text-secondary);
  font-size: 0.78rem;
  margin-top: 1px;
}

.header-badge {
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 20px;
  padding: 4px 12px;
  color: #22d3ee;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ─── MAIN LAYOUT ─── */
.main {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px 100px;
}

/* ─── GLASS CARDS ─── */
.card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--card-radius);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  margin-bottom: 24px;
  overflow: visible;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:focus-within,
.card.has-open-dropdown {
  z-index: 10;
}

.card:hover {
  border-color: rgba(6, 182, 212, 0.25);
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6), 0 0 25px -5px rgba(6, 182, 212, 0.12), inset 0 1px 1px rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.card-head {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%);
  color: var(--text-primary);
  padding: 18px 24px;
  font-size: 0.98rem;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
  border-top-left-radius: inherit;
  border-top-right-radius: inherit;
}

.card-body {
  padding: 28px;
}

/* ─── FORM CONTROLS ─── */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 640px) {
  .grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.req {
  color: var(--error-color);
  margin-left: 2px;
}

input[type="text"],
input[type="password"],
select {
  background: var(--bg-input);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--input-radius);
  padding: 12px 16px;
  font-size: 0.92rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  outline: none;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
}

select option {
  background-color: #0f172a; /* Matches card dark slate background */
  color: var(--text-primary); /* High-contrast white text */
}

input[type="text"]::placeholder,
input[type="password"]::placeholder {
  color: var(--text-muted);
}

input[type="text"]:hover,
input[type="password"]:hover,
select:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(15, 23, 42, 0.75);
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.18), inset 0 2px 4px rgba(0, 0, 0, 0.25);
  background: rgba(15, 23, 42, 0.85);
}

input[type="text"]:disabled,
select:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

input.has-error,
select.has-error {
  border-color: var(--error-color) !important;
  box-shadow: 0 0 0 3px rgba(244, 63, 94, 0.15) !important;
}

.err-msg {
  font-size: 0.75rem;
  color: var(--error-color);
  display: none;
  font-weight: 500;
  margin-top: 2px;
}

.err-msg.show {
  display: block;
}

/* ─── CUSTOM COMBOBOX ─── */
.combobox-container {
  position: relative;
  width: 100%;
}

.combobox-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 6px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--input-radius);
  max-height: 200px;
  overflow-y: auto;
  z-index: 1000;
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.6), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  display: none;
}

.combobox-dropdown.open {
  display: block;
  animation: dropdownEnter 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes dropdownEnter {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.combobox-option {
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.combobox-option:hover {
  background: rgba(6, 182, 212, 0.15);
}

.combobox-option.selected {
  background: rgba(6, 182, 212, 0.25);
  color: #22d3ee;
  font-weight: 600;
}

.combobox-badge {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
}
.combobox-badge.signed {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
}
.combobox-badge.unsigned {
  background: rgba(244, 63, 94, 0.15);
  color: #fb7185;
}

/* ─── SIGNATURE PANELS ─── */
.sig-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 640px) {
  .sig-grid {
    grid-template-columns: 1fr;
  }
}

.sig-slot {
  border: 1.5px dashed rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  min-height: 180px;
  justify-content: center;
  background: rgba(15, 23, 42, 0.25);
  position: relative;
  overflow: hidden;
}

.sig-slot::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.sig-slot:hover::before {
  opacity: 1;
}

.sig-slot:hover {
  border-color: var(--primary-color);
  border-style: solid;
  background: rgba(15, 23, 42, 0.35);
  transform: translateY(-4px);
  box-shadow: 0 15px 30px -10px rgba(6, 182, 212, 0.2), 0 0 1px 1px rgba(6, 182, 212, 0.25);
}

.sig-slot.signed {
  border-style: solid;
  border-color: var(--success-color);
  background: rgba(16, 185, 129, 0.03);
}

.sig-slot.signed:hover {
  border-color: var(--success-color);
  background: rgba(16, 185, 129, 0.06);
  box-shadow: 0 15px 30px -10px rgba(16, 185, 129, 0.2), 0 0 1px 1px rgba(16, 185, 129, 0.25);
}

.sig-slot.has-error {
  border-color: var(--error-color) !important;
  border-style: solid;
  background: rgba(244, 63, 94, 0.02);
}

.sig-slot.locked {
  opacity: 0.6;
  cursor: not-allowed;
  background: rgba(15, 23, 42, 0.15);
  border-color: rgba(255, 255, 255, 0.08);
  filter: grayscale(0.6);
  transform: none !important;
  box-shadow: none !important;
}

.sig-slot.locked:hover {
  border-color: rgba(244, 63, 94, 0.35);
  background: rgba(244, 63, 94, 0.04);
  transform: none !important;
  box-shadow: none !important;
}

.sig-slot.locked .slot-icon {
  transform: none !important;
  opacity: 0.5;
}

.sig-slot.locked .slot-hint {
  color: #f87171 !important;
  font-size: 0.72rem !important;
  font-weight: 500;
}

.sig-slot .slot-icon {
  font-size: 2rem;
  transition: transform 0.25s ease;
}

.sig-slot:hover .slot-icon {
  transform: scale(1.1) rotate(4deg);
}

.sig-slot .slot-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.sig-slot .slot-hint {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.sig-slot .slot-status {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sig-slot .slot-status.ok {
  color: var(--success-color);
}

.sig-slot .slot-status.pending {
  color: var(--text-muted);
}

.sig-slot .sig-preview {
  width: 100%;
  max-height: 85px;
  object-fit: contain;
  border-radius: 8px;
  display: none;
  filter: invert(0.9) hue-rotate(180deg) brightness(1.2);
}

.sig-slot.signed .sig-preview {
  display: block;
}

.sig-slot.signed .slot-hint,
.sig-slot.signed .slot-icon {
  display: none;
}

.sig-slot .btn-redo {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  display: none;
  transition: all 0.2s;
}

.sig-slot.signed .btn-redo {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.sig-slot .btn-redo:hover {
  background: rgba(244, 63, 94, 0.1);
  border-color: rgba(244, 63, 94, 0.25);
  color: var(--error-color);
}

/* ─── BUTTONS ─── */
.btn {
  border: none;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  padding: 12px 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  justify-content: center;
  color: white;
  outline: none;
}

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

.btn:active {
  transform: translateY(0) scale(0.97);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-cancel {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.btn-cancel:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-clear {
  background: rgba(244, 63, 94, 0.08);
  border: 1px solid rgba(244, 63, 94, 0.2);
  color: var(--error-color);
  padding: 12px 16px;
}

.btn-clear:hover {
  background: rgba(244, 63, 94, 0.15);
  border-color: rgba(244, 63, 94, 0.35);
}

.btn-confirm {
  background: var(--success-gradient);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.2);
}

.btn-confirm:hover:not(:disabled) {
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.btn-primary {
  background: var(--primary-gradient);
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.4);
}

.btn-danger {
  background: var(--error-gradient);
  box-shadow: 0 4px 14px rgba(244, 63, 94, 0.25);
}

.btn-danger:hover:not(:disabled) {
  box-shadow: 0 8px 20px rgba(244, 63, 94, 0.4);
}

.btn-generate {
  width: 100%;
  padding: 16px;
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.25);
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
}

.btn-generate:hover:not(:disabled) {
  background: var(--primary-hover);
  box-shadow: 0 10px 30px rgba(6, 182, 212, 0.45);
}

.btn-generate::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -60%;
  width: 30%;
  height: 200%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.15) 30%,
    rgba(255, 255, 255, 0.25) 50%,
    rgba(255, 255, 255, 0.15) 70%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  animation: shine 4.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes shine {
  0% { left: -60%; }
  15%, 100% { left: 140%; }
}

/* ─── INFO BOXES ─── */
.info-box {
  background: rgba(6, 182, 212, 0.04);
  border: 1px solid rgba(6, 182, 212, 0.12);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 0.8rem;
  color: #22d3ee;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 20px;
}

.info-box-success {
  background: rgba(16, 185, 129, 0.04);
  border: 1px solid rgba(16, 185, 129, 0.12);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 0.8rem;
  color: #34d399;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 20px;
}

/* ─── MODALS ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0; /* Fullscreen - no padding */
}

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

.modal-inner {
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  background: #090d16;
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
  display: flex;
  flex-direction: column;
  animation: modalEnterFullscreen 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnterFullscreen {
  from { transform: scale(1.02); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-topbar {
  background: rgba(255, 255, 255, 0.02);
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.modal-topbar h2 {
  color: var(--text-primary);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.modal-topbar p {
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-top: 3px;
}

.modal-canvas-wrap {
  flex: 1; /* Occupy all remaining vertical space */
  height: auto;
  position: relative;
  background: #ffffff; /* White background so ink is clearly visible */
  cursor: crosshair;
  border-bottom: 1px solid var(--border-color);
}

.modal-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.canvas-guide {
  position: absolute;
  bottom: 90px;
  left: 5%;
  border-top: 1.5px dashed rgba(0, 0, 0, 0.15); /* Dark dashed line on white */
  width: 90%;
  pointer-events: none;
}

.canvas-guide-label {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  color: rgba(0, 0, 0, 0.4); /* Dark text on white */
  letter-spacing: 0.05em;
  text-transform: uppercase;
  pointer-events: none;
}

.canvas-empty-hint {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  gap: 10px;
  transition: opacity 0.25s ease;
}

.canvas-empty-hint .big-icon {
  font-size: 3rem;
  opacity: 0.15;
  color: #000000; /* Dark icon on white */
}

.canvas-empty-hint p {
  font-size: 0.88rem;
  color: rgba(0, 0, 0, 0.4); /* Dark text on white */
}

.modal-bottombar {
  background: rgba(255, 255, 255, 0.02);
  padding: 18px 24px;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-shrink: 0;
}

/* ─── TOAST NOTIFICATIONS ─── */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(11, 15, 25, 0.95);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
  color: var(--text-primary);
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6);
  transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(8, 28, 20, 0.95);
  box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.15);
}

.toast.error {
  border-color: rgba(244, 63, 94, 0.3);
  background: rgba(28, 8, 12, 0.95);
  box-shadow: 0 10px 25px -5px rgba(244, 63, 94, 0.15);
}

/* ─── TABLES ─── */
.table-container {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.2);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

th {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  background: rgba(15, 23, 42, 0.45);
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

td {
  padding: 14px 18px;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

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

tr:hover td {
  background: rgba(255, 255, 255, 0.01);
}

.btn-action-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 6px;
  border-radius: 8px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-action-icon:hover {
  color: var(--primary-color);
  background: rgba(6, 182, 212, 0.08);
}

.btn-action-icon.del:hover {
  color: var(--error-color);
  background: rgba(244, 63, 94, 0.08);
}

/* ─── TABS ─── */
.tabs-header {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
  padding: 0 10px;
}

.tab-btn {
  padding: 14px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: none;
  background: none;
  cursor: pointer;
  position: relative;
  font-family: var(--font-main);
  transition: color 0.2s;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--primary-color);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-gradient);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ─── UTILITIES & LOADERS ─── */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}

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

.checkbox-wrap {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: normal;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.88rem;
  user-select: none;
  transition: color 0.2s ease;
}

.checkbox-wrap:hover {
  color: var(--primary-color);
}

.checkbox-wrap input[type="checkbox"] {
  accent-color: var(--primary-color);
  width: 18px;
  height: 18px;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 2px;
  transition: transform 0.2s ease;
}

.checkbox-wrap input[type="checkbox"]:hover {
  transform: scale(1.1);
}

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

.text-right {
  text-align: right;
}

.text-center {
  text-align: center;
}

.w-full {
  width: 100%;
}

.perm-card {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.perm-card:hover {
  border-color: rgba(6, 182, 212, 0.5) !important;
  background: rgba(30, 41, 59, 0.7) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -6px rgba(6, 182, 212, 0.15);
}

.perm-card:has(input:checked) {
  border-color: rgba(6, 182, 212, 0.6) !important;
  background: rgba(6, 182, 212, 0.08) !important;
}

/* ─── CUSTOM DIALOG CONFIRMATION MODAL ─── */
.modal-dialog-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(3, 7, 18, 0.84);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
  justify-content: center;
  align-items: center;
  padding: 20px;
  animation: fadeIn 0.25s ease-out;
}

.modal-dialog-overlay.open {
  display: flex;
}

.modal-dialog-card {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(9, 13, 22, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  max-width: 480px;
  width: 100%;
  padding: 32px 28px 26px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75), 0 0 30px rgba(6, 182, 212, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: modalPopIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.modal-dialog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--success-gradient);
}

@keyframes modalPopIn {
  from { transform: scale(0.9) translateY(20px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-dialog-icon {
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  border: 2px solid rgba(16, 185, 129, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}

.modal-dialog-icon .icon-emoji {
  font-size: 2.2rem;
  z-index: 2;
}

.modal-dialog-icon .icon-pulse {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.2);
  animation: pulseGlow 2s infinite ease-in-out;
  z-index: 1;
}

@keyframes pulseGlow {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.15); opacity: 0.8; }
}

.modal-dialog-title {
  color: var(--text-primary);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.modal-dialog-subtitle {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.45;
  margin-bottom: 22px;
}

.modal-dialog-body {
  width: 100%;
  margin-bottom: 24px;
}

.file-summary-box {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  margin-bottom: 16px;
}

.file-summary-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.file-summary-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.file-summary-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.file-summary-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: #38bdf8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-summary-badge {
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 8px;
  border-radius: 6px;
  flex-shrink: 0;
}

.modal-dialog-question {
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.4;
}

.modal-dialog-actions {
  display: flex;
  gap: 12px;
  width: 100%;
}

.modal-dialog-btn {
  flex: 1;
  padding: 13px 18px;
  font-size: 0.9rem;
  border-radius: 12px;
}

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN SYSTEM (MOBILE, TABLET, LAPTOP & DESKTOP)
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Large Desktops / 4K / Ultra-wide (>= 1440px) ─── */
@media (min-width: 1440px) {
  .main {
    max-width: 1020px;
  }
}

/* ─── Laptops & Small Desktops (1024px - 1439px) ─── */
@media (max-width: 1200px) {
  .header {
    padding: 12px 30px;
  }
  .main {
    max-width: 880px;
    padding: 30px 20px 80px;
  }
}

/* ─── Tablets (768px - 1023px) ─── */
@media (max-width: 1023px) {
  .header {
    padding: 12px 20px;
  }
  .header-logo {
    width: 38px;
    height: 38px;
    font-size: 20px;
  }
  .header-text h1 {
    font-size: 1.12rem;
  }
  .header-text p {
    font-size: 0.74rem;
  }
  .main {
    max-width: 100%;
    padding: 24px 16px 80px;
  }
  .card-body {
    padding: 22px 20px;
  }
  .table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  table {
    min-width: 580px;
  }
}

/* ─── Phablets & Mobile Landscape (641px - 767px) ─── */
@media (max-width: 767px) {
  .grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .sig-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .card {
    border-radius: 18px;
    margin-bottom: 18px;
  }
  .card-head {
    padding: 14px 18px;
    font-size: 0.92rem;
  }
  .card-body {
    padding: 20px 16px;
  }
  .tabs-header {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 0 4px;
  }
  .tabs-header::-webkit-scrollbar {
    display: none;
  }
  .tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 12px 14px;
    font-size: 0.82rem;
  }
}

/* ─── Smartphones & Mobile Portrait (<= 640px) ─── */
@media (max-width: 640px) {
  .header {
    padding: 10px 14px;
  }
  .header-logo {
    width: 34px;
    height: 34px;
    font-size: 18px;
    border-radius: 10px;
  }
  .header-text {
    margin-left: 10px;
  }
  .header-text h1 {
    font-size: 0.98rem;
  }
  .header-text p {
    font-size: 0.7rem;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .header-badge {
    display: none;
  }
  .main {
    padding: 14px 10px 60px;
  }
  .card {
    border-radius: 16px;
    margin-bottom: 14px;
  }
  .card-head {
    padding: 12px 14px;
    font-size: 0.88rem;
    gap: 6px;
  }
  .card-body {
    padding: 16px 12px;
  }
  
  /* Touch optimized input sizes to prevent iOS zoom */
  input[type="text"],
  input[type="password"],
  select {
    font-size: 16px !important;
    padding: 12px 14px;
    min-height: 48px;
    border-radius: 12px;
  }
  label {
    font-size: 0.72rem;
  }
  
  /* Signature slots */
  .sig-slot {
    min-height: 140px;
    padding: 18px 12px;
    border-radius: 14px;
  }
  .sig-slot .slot-icon {
    font-size: 1.6rem;
  }
  .sig-slot .slot-title {
    font-size: 0.82rem;
  }
  .sig-slot .slot-hint {
    font-size: 0.72rem;
  }
  
  /* Buttons */
  .btn {
    padding: 12px 18px;
    font-size: 0.88rem;
    min-height: 44px;
  }
  .btn-generate {
    padding: 14px;
    font-size: 0.94rem;
    border-radius: 14px;
  }
  
  /* Signature Canvas Modal Mobile Adaptations */
  .modal-topbar {
    padding: 12px 16px;
  }
  .modal-topbar h2 {
    font-size: 1rem;
  }
  .modal-topbar p {
    font-size: 0.75rem;
  }
  .modal-bottombar {
    padding: 12px 16px;
    gap: 8px;
  }
  .modal-bottombar .btn {
    flex: 1;
    padding: 10px 8px;
    font-size: 0.78rem;
  }
  .canvas-guide-label {
    font-size: 0.65rem;
    bottom: 45px;
  }
  .canvas-guide {
    bottom: 70px;
  }
  
  /* Dialog Confirmation Modal on Mobile */
  .modal-dialog-card {
    padding: 22px 16px 18px;
    border-radius: 18px;
    max-width: 95vw;
  }
  .modal-dialog-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 14px;
  }
  .modal-dialog-icon .icon-emoji {
    font-size: 1.8rem;
  }
  .modal-dialog-title {
    font-size: 1.18rem;
  }
  .modal-dialog-subtitle {
    font-size: 0.82rem;
    margin-bottom: 16px;
  }
  .file-summary-box {
    padding: 10px 12px;
    gap: 10px;
    margin-bottom: 14px;
  }
  .file-summary-icon {
    font-size: 1.4rem;
  }
  .file-summary-name {
    font-size: 0.82rem;
  }
  .modal-dialog-question {
    font-size: 0.85rem;
  }
  .modal-dialog-actions {
    flex-direction: column-reverse;
    gap: 8px;
  }
  .modal-dialog-btn {
    width: 100%;
    padding: 12px;
    font-size: 0.88rem;
  }
  
  /* Toast Notification */
  .toast {
    width: 90vw;
    font-size: 0.82rem;
    padding: 12px 16px;
    bottom: 20px;
  }
}

/* ─── Extra Small Phones (< 380px) ─── */
@media (max-width: 380px) {
  .header-text p {
    display: none;
  }
  .header-text h1 {
    font-size: 0.88rem;
  }
  .modal-topbar p {
    display: none;
  }
}

/* ═══════════════════════════════════════════════════════════════════
   CONSENT DOCUMENT READER & SHARING HUB
   ═══════════════════════════════════════════════════════════════════ */

/* Reading Hub Card in Generator */
.reading-hub-card {
  margin-top: 18px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(59, 130, 246, 0.08) 100%);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: 16px;
  padding: 16px 20px;
  animation: fadeIn 0.3s ease-out;
}

.reading-hub-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.reading-hub-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(6, 182, 212, 0.2);
  color: #22d3ee;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(6, 182, 212, 0.35);
}

.reading-hub-desc {
  color: var(--text-secondary);
  font-size: 0.84rem;
  line-height: 1.4;
  margin-bottom: 14px;
}

.reading-hub-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.btn-preview {
  background: var(--primary-gradient);
  color: #fff;
  border: none;
  padding: 10px 16px;
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.25);
  transition: all 0.2s ease;
}

.btn-preview:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
}

.btn-copy-link {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 10px 16px;
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-copy-link:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-open-link {
  background: transparent;
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 10px 14px;
  font-size: 0.84rem;
  font-weight: 500;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
}

.btn-open-link:hover {
  background: rgba(56, 189, 248, 0.1);
}

.share-link-box {
  display: flex;
  gap: 8px;
  align-items: center;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 4px 8px 4px 12px;
}

.share-link-box input {
  flex: 1;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  color: #38bdf8;
  font-family: monospace;
  font-size: 0.78rem !important;
  padding: 6px 0 !important;
  min-height: auto !important;
  cursor: pointer;
}

.btn-copy-mini {
  background: rgba(6, 182, 212, 0.2);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.btn-copy-mini:hover {
  background: rgba(6, 182, 212, 0.35);
}

/* Standalone Consent Paper Sheet */
.consent-paper {
  background: #ffffff;
  color: #1e293b;
  border-radius: 18px;
  padding: 45px 50px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 1px 1px rgba(255, 255, 255, 0.1);
  line-height: 1.7;
  font-size: 0.96rem;
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  margin-bottom: 40px;
}

.consent-paper-header {
  text-align: center;
  margin-bottom: 25px;
}

.consent-paper-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #0369a1;
  background: #e0f2fe;
  border: 1px solid #bae6fd;
  border-radius: 20px;
  padding: 4px 14px;
  margin-bottom: 12px;
}

.consent-paper-title {
  color: #0f172a;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 8px;
}

.consent-paper-meta {
  color: #64748b;
  font-size: 0.82rem;
}

.consent-paper-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, #cbd5e1 20%, #cbd5e1 80%, transparent 100%);
  margin-bottom: 30px;
}

.consent-paper-content {
  color: #334155;
  font-size: 0.95rem;
}

.consent-paper-content p {
  margin-bottom: 16px;
  text-align: justify;
}

.consent-paper-content h1,
.consent-paper-content h2,
.consent-paper-content h3,
.consent-paper-content h4 {
  color: #0f172a;
  margin-top: 24px;
  margin-bottom: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.consent-paper-content strong {
  color: #0f172a;
}

.consent-paper-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.88rem;
}

.consent-paper-content table td,
.consent-paper-content table th {
  border: 1px solid #cbd5e1;
  padding: 10px 14px;
  color: #1e293b;
}

.consent-paper-content table th {
  background: #f1f5f9;
  font-weight: 600;
}

.consent-tag-placeholder {
  display: inline-block;
  background: #e2e8f0;
  color: #475569;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px dashed #94a3b8;
}

.consent-sig-box {
  margin: 18px 0;
  border: 1.5px dashed #94a3b8;
  background: #f8fafc;
  border-radius: 10px;
  padding: 18px 20px;
  text-align: center;
  color: #64748b;
  font-size: 0.85rem;
  font-weight: 500;
}

.consent-paper-footer {
  margin-top: 40px;
  border-top: 1px solid #e2e8f0;
  padding-top: 25px;
}

.reading-confirm-card {
  background: #f0fdf4;
  border: 1.5px solid #86efac;
  border-radius: 14px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

/* Embedded Document Reader Modal */
.modal-reader-card {
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  max-width: 900px;
  width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.85);
  animation: modalPopIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.modal-reader-topbar {
  background: rgba(255, 255, 255, 0.03);
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.modal-reader-body {
  padding: 24px 30px;
  overflow-y: auto;
  flex: 1;
  background: #ffffff;
  color: #1e293b;
  line-height: 1.7;
}

.modal-reader-bottombar {
  background: rgba(2, 6, 23, 0.95);
  padding: 14px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  gap: 12px;
  flex-wrap: wrap;
}

/* Mobile responsive for Reader */
@media (max-width: 768px) {
  .consent-paper {
    padding: 24px 18px;
    font-size: 0.9rem;
    border-radius: 14px;
  }
  .consent-paper-title {
    font-size: 1.2rem;
  }
  .modal-reader-body {
    padding: 18px 14px;
  }
  .reading-hub-actions {
    flex-direction: column;
  }
  .reading-hub-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .reading-confirm-card {
    flex-direction: column;
    text-align: center;
  }
  .reading-confirm-card a {
    width: 100%;
    text-align: center;
  }
}

/* Print Stylesheet */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  body::before {
    display: none !important;
  }
  .no-print {
    display: none !important;
  }
  .header,
  .reader-header,
  .reading-hub-card,
  .modal-overlay,
  .modal-dialog-overlay {
    display: none !important;
  }
  .main,
  .reader-main {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .consent-paper {
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    color: #000000 !important;
  }
}