/* ===== Stock Analyzer — front-end styling (bright & professional) ===== */
:root {
  --ink:      #0f2747;   /* deep professional navy for text   */
  --ink-soft: #46566f;   /* secondary text                    */
  --muted:    #7d8ba3;   /* hints / labels                    */
  --accent:   #2563eb;   /* primary blue                      */
  --accent-2: #4f9bff;   /* lighter blue for gradients        */
  --line:     #e7eef8;   /* hairline borders                  */
  --bg:       #f5f8fd;   /* airy page background               */
  --card:     #ffffff;
  --shadow:   0 10px 40px rgba(37, 99, 235, .08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* Hero — light, airy, professional */
.hero {
  background:
    radial-gradient(1200px 400px at 80% -50%, rgba(79,155,255,.18), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #eef4ff 100%);
  border-bottom: 1px solid var(--line);
  padding: 44px 20px 52px;
}
.hero-inner { max-width: 880px; margin: 0 auto; }
.hero h1 { font-size: 32px; font-weight: 800; letter-spacing: -.5px; color: var(--ink); }
.hero p { font-size: 15.5px; color: var(--ink-soft); margin-top: 10px; max-width: 660px; }
.hero strong { color: var(--accent); font-weight: 700; }

/* Layout */
.container { max-width: 880px; margin: -28px auto 0; padding: 0 20px 44px; }
.panel {
  background: var(--card); border-radius: 18px; padding: 26px;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}

.field-label { display: block; font-size: 12px; font-weight: 700; color: var(--muted);
  text-transform: uppercase; letter-spacing: .6px; margin: 18px 0 8px; }
.field-label:first-child { margin-top: 0; }

input[type="text"] {
  width: 100%; font-size: 16px; padding: 14px 16px; border: 1.5px solid var(--line);
  border-radius: 12px; outline: none; transition: border-color .15s, box-shadow .15s; background: #fbfdff;
  color: var(--ink);
}
input[type="text"]:focus { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(37,99,235,.10); }
input::placeholder { color: #aab6cc; }

/* Mode buttons */
.modes { display: flex; flex-wrap: wrap; gap: 9px; }
.mode {
  font-size: 14px; font-weight: 600; padding: 11px 16px; border: 1.5px solid var(--line);
  background: #fbfdff; color: var(--ink-soft); border-radius: 12px; cursor: pointer; transition: all .15s;
}
.mode:hover { border-color: #bcd0f2; color: var(--ink); }
.mode.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; color: #fff; box-shadow: 0 6px 18px rgba(37,99,235,.28);
}

/* Go button */
.go-btn {
  margin-top: 22px; width: 100%; font-size: 16px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; border-radius: 13px; padding: 16px; cursor: pointer;
  transition: filter .15s, transform .05s, box-shadow .15s; box-shadow: 0 8px 22px rgba(37,99,235,.30);
}
.go-btn:hover { filter: brightness(1.04); }
.go-btn:active { transform: translateY(1px); }
.go-btn:disabled { filter: grayscale(.4) brightness(.97); cursor: progress; box-shadow: none; }

.hint { font-size: 13px; color: var(--muted); margin-top: 14px; }

/* Result area */
.result { margin-top: 24px; }
.result-card {
  background: var(--card); border-radius: 18px; padding: 26px 28px;
  box-shadow: var(--shadow); border: 1px solid var(--line); font-size: 14.5px; color: var(--ink-soft);
}
.result-card h3 { font-size: 16.5px; color: var(--ink); margin: 18px 0 10px; font-weight: 700; }
.result-card h3:first-child { margin-top: 0; }
.result-card p { margin: 10px 0; }
.result-card ul { margin: 8px 0 8px 4px; list-style: none; }
.result-card li { padding: 7px 0 7px 24px; position: relative; }
.result-card li::before { content: "▸"; position: absolute; left: 4px; color: var(--accent); font-weight: 700; }
.result-card table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 14px 0;
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.result-card th { text-align: left; background: #f1f6ff; color: #44557a; font-size: 11.5px;
  text-transform: uppercase; letter-spacing: .4px; padding: 10px 12px; }
.result-card td { padding: 10px 12px; border-bottom: 1px solid var(--line); }
.result-card tr:last-child td { border-bottom: none; }
.result-card em { display: block; margin-top: 18px; padding: 14px 16px; background: #f1f6ff;
  border-radius: 11px; font-size: 12.5px; color: #52617a; line-height: 1.55; }
.result-card strong { color: var(--ink); }

/* Loading + error states */
.loading { text-align: center; padding: 44px 20px; color: var(--ink-soft); }
.spinner {
  width: 40px; height: 40px; margin: 0 auto 18px; border: 4px solid #e2ecfb;
  border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading small { display: block; margin-top: 8px; font-size: 12.5px; color: var(--muted); }

.error {
  background: #fff4f3; border: 1px solid #f6c9c3; color: #b3392a; padding: 16px 18px;
  border-radius: 13px; font-size: 14px;
}
.error strong { display: block; margin-bottom: 4px; color: #b3392a; }

.hidden { display: none; }

.foot { max-width: 880px; margin: 0 auto; padding: 26px 20px 36px; text-align: center;
  font-size: 12px; color: var(--muted); }
.foot-disclaimer { font-style: italic; line-height: 1.6; }
.foot-brand {
  margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: 12.5px; font-weight: 600; color: var(--ink);
  letter-spacing: .2px;
}
.foot-brand a { color: var(--accent); text-decoration: none; }
.foot-brand a:hover { text-decoration: underline; }

/* ===== Mobile (≤ 640px) — bigger taps, no overflow, single column ===== */
@media (max-width: 640px) {
  .hero { padding: 30px 16px 38px; }
  .hero h1 { font-size: 25px; }
  .hero p  { font-size: 14.5px; }

  .container { padding: 0 14px 30px; margin-top: -22px; }
  .panel { padding: 18px 16px; border-radius: 14px; }
  .result-card { padding: 18px 18px; border-radius: 14px; font-size: 14px; }

  input[type="text"] { font-size: 16px; padding: 13px 14px; } /* 16px prevents iOS auto-zoom */

  /* Mode buttons: each on its own row, full width, finger-friendly */
  .modes { gap: 7px; }
  .mode  { flex: 1 1 100%; padding: 12px 14px; font-size: 14px; text-align: center; }

  .go-btn { padding: 16px; font-size: 16px; }

  /* Tables can be wider than the screen — let them scroll inside their card */
  .result-card { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .result-card table { min-width: 480px; }

  .foot { padding: 20px 16px 30px; }
}

/* ===== Very small phones (≤ 380px) ===== */
@media (max-width: 380px) {
  .hero h1 { font-size: 22px; }
  .panel, .result-card { padding: 16px 14px; }
}