:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --text: #0f172a;          /* dark text */
  --muted: #475569;         /* secondary text */
  --border: #e5e7eb;        /* light border */
  --border-strong: #d1d5db; /* stronger border */
  --soft: #f8fafc;          /* light background */
  --accent: #2563eb;        /* blue */
  --accent-2: #1d4ed8;      /* darker blue */
  --ok: #16a34a;
  --err: #dc2626;
  --radius: 12px;
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

/* GLOBAL RESET */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 20px;
}

/* CONTAINER */
.container {
  max-width: 1100px;
  margin: 30px auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 28px;
}

h2 {
  margin-bottom: 20px;
  font-weight: 700;
  color: var(--accent-2);
  text-align: center;
}

/* FORM */
label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="number"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: #fff;
  padding: 12px;
  font-size: 15px;
  color: var(--text);
  transition: border-color .2s, box-shadow .2s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

/* AMOUNT ROW */
.amount-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.amount-row select {
  width: 130px;
}

/* CHECKBOXES */
.support-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}
.support-options label {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  background: var(--soft);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.support-options label:hover {
  background: #eef2ff;
  border-color: var(--accent);
}
.support-options input[type="checkbox"] {
  accent-color: var(--accent);
}

/* SUBMIT BUTTON */
.submit-btn {
  margin-top: 16px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white;
  border: none;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: filter .2s, transform .1s;
}
.submit-btn:hover { filter: brightness(1.1); }
.submit-btn:active { transform: scale(0.98); }

/* MESSAGES */
#msg {
  margin-top: 12px;
  font-weight: 600;
}
.success { color: var(--ok); }
.error { color: var(--err); }

/* PROGRESS BAR */
.progress-section {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.progress-bar {
  position: relative;
  width: 240px;
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--soft);
  border: 1px solid var(--border);
}
.progress-inner {
  position: absolute;
  left: -40%;
  top: 0;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, #93c5fd, #60a5fa);
}
.progress-inner.indeterminate {
  animation: progress-loop 1.8s infinite ease-in-out;
}
.progress-text {
  font-size: 13px;
  color: var(--muted);
}

@keyframes progress-loop {
  0%   { left: -40%; width: 40%; }
  50%  { left: 20%;  width: 60%; }
  100% { left: 100%; width: 40%; }
}

/* RESULTS TABLE */
.results-table-box {
  margin-top: 20px;
  overflow-x: auto;
}
.results-table-box table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
}
.results-table-box th,
.results-table-box td {
  border: 1px solid var(--border);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}
.results-table-box thead {
  background: #eff6ff;
  color: var(--text);
}
.results-table-box tr:nth-child(even) {
  background: #f9fafb;
}
.results-table-box a {
  color: var(--accent);
  text-decoration: underline;
}

/* SUMMARY BOX */
.ai-summary-box {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-top: 16px;
}
.ai-summary-box h3 {
  margin-bottom: 6px;
  color: var(--accent);
}

/* ACTION BUTTONS (PDF + EMAIL) */
.actions-row {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.btn-outline {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: #f8fafc;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  transition: background .2s, border-color .2s, box-shadow .2s, transform .1s;
}
.btn-outline:hover {
  background: #eef2ff;
  border-color: #c7d2fe;
  box-shadow: 0 0 0 3px rgba(199, 210, 254, .5);
  transform: translateY(-1px);
}

/* FADE IN */
.fade-in {
  animation: fade .25s ease-in;
}
@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* MOBILE RESPONSIVE */
@media (max-width: 640px) {
  .amount-row { flex-direction: column; align-items: stretch; }
  .amount-row select { width: 100%; }
  .container { padding: 18px; }
}