:root {
  --bg: #fff8ef;
  --bg-2: #ffe9d7;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-strong: #ffffff;
  --soft: #fff5ea;
  --ink: #1c2a39;
  --muted: #5f6f80;
  --line: #e5d8c8;
  --teal: #0f766e;
  --orange: #f97316;
  --pink: #ec4899;
  --sky: #0ea5e9;
  --danger: #b91c1c;
  --ok: #166534;
  --ring: rgba(14, 165, 233, 0.28);
  --shadow: 0 18px 50px rgba(41, 56, 75, 0.14);
  --shadow-soft: 0 8px 24px rgba(41, 56, 75, 0.08);

  --btn-plain-bg: rgba(255, 255, 255, 0.88);
  --btn-plain-border: rgba(146, 166, 186, 0.58);
  --btn-plain-text: #23435d;

  --btn-primary-start: #ff5f8f;
  --btn-primary-end: #ff8b1f;
  --btn-primary-shadow: rgba(236, 102, 58, 0.34);

  --btn-danger-start: #ef4444;
  --btn-danger-end: #b91c1c;

  --btn-soft-bg: rgba(255, 255, 255, 0.9);
  --btn-soft-border: rgba(146, 162, 179, 0.6);
  --btn-soft-text: #1f2937;

  --chip-bg: rgba(255, 255, 255, 0.88);
  --chip-border: rgba(145, 167, 186, 0.45);
  --chip-text: #2b4a63;
  --timeframe-active-border: #f97316;
  --timeframe-active-bg: rgba(249, 115, 22, 0.16);
  --timeframe-active-text: #9a3412;

  --toggle-bg: rgba(255, 255, 255, 0.8);
  --toggle-border: rgba(146, 166, 186, 0.46);
  --toggle-text: #37506b;

  --nav-active-start: #ff5f8f;
  --nav-active-end: #ff8b1f;
  --nav-active-shadow: rgba(236, 102, 58, 0.32);
}

body[data-theme="dark"] {
  --bg: #0d1622;
  --bg-2: #111f2f;
  --panel: rgba(15, 25, 39, 0.9);
  --panel-strong: #0f1c2c;
  --soft: #1a2b3e;
  --ink: #e8f1fb;
  --muted: #9db2c8;
  --line: #2e4158;
  --ring: rgba(56, 189, 248, 0.25);
  --shadow: 0 18px 50px rgba(4, 8, 14, 0.5);
  --shadow-soft: 0 8px 24px rgba(4, 8, 14, 0.35);

  --btn-plain-bg: rgba(21, 34, 52, 0.92);
  --btn-plain-border: rgba(88, 119, 151, 0.64);
  --btn-plain-text: #d6e7f9;

  --btn-primary-start: #38bdf8;
  --btn-primary-end: #6366f1;
  --btn-primary-shadow: rgba(56, 189, 248, 0.3);

  --btn-danger-start: #fb7185;
  --btn-danger-end: #dc2626;

  --btn-soft-bg: rgba(20, 34, 50, 0.9);
  --btn-soft-border: rgba(91, 121, 151, 0.62);
  --btn-soft-text: #d5e8fb;

  --chip-bg: rgba(17, 30, 45, 0.88);
  --chip-border: rgba(76, 106, 137, 0.55);
  --chip-text: #d5e8fb;
  --timeframe-active-border: #38bdf8;
  --timeframe-active-bg: rgba(56, 189, 248, 0.22);
  --timeframe-active-text: #d8efff;

  --toggle-bg: rgba(21, 34, 51, 0.9);
  --toggle-border: rgba(94, 126, 159, 0.5);
  --toggle-text: #d4e6f8;

  --nav-active-start: #38bdf8;
  --nav-active-end: #6366f1;
  --nav-active-shadow: rgba(56, 189, 248, 0.32);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 186, 118, 0.42) 0%, transparent 33%),
    radial-gradient(circle at 92% 2%, rgba(112, 210, 255, 0.38) 0%, transparent 29%),
    radial-gradient(circle at 80% 85%, rgba(244, 114, 182, 0.2) 0%, transparent 35%),
    linear-gradient(145deg, var(--bg), var(--bg-2));
  background-attachment: fixed;
}

body[data-theme="dark"] {
  background:
    radial-gradient(circle at 12% 10%, rgba(56, 189, 248, 0.2) 0%, transparent 33%),
    radial-gradient(circle at 92% 2%, rgba(244, 114, 182, 0.14) 0%, transparent 29%),
    linear-gradient(145deg, #09121d, #111f2f);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.32), transparent 38%),
    repeating-linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.12) 0px,
      rgba(255, 255, 255, 0.12) 1px,
      transparent 1px,
      transparent 16px
    );
  opacity: 0.65;
}

.page-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 22px;
  position: relative;
  z-index: 1;
}

.top-nav {
  position: sticky;
  top: 10px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-soft);
}

body[data-theme="dark"] .top-nav {
  border: 1px solid rgba(66, 87, 109, 0.7);
  background: rgba(14, 24, 38, 0.84);
}

.logo {
  margin: 0;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.015em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.nav-links a {
  text-decoration: none;
  color: #4d5f70;
  border: 1px solid rgba(144, 165, 186, 0.35);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.84rem;
  font-weight: 600;
  transition:
    transform 0.18s ease,
    background-color 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

body[data-theme="dark"] .nav-links a {
  color: #c1d6ea;
  border-color: rgba(75, 103, 131, 0.55);
}

.nav-links a:hover {
  transform: translateY(-1px);
  color: #1f3a56;
  border-color: rgba(72, 146, 201, 0.4);
  background: rgba(231, 247, 255, 0.78);
}

body[data-theme="dark"] .nav-links a:hover {
  color: #e6f1fc;
  border-color: rgba(92, 142, 186, 0.65);
  background: rgba(29, 50, 72, 0.92);
}

.nav-links a.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(120deg, var(--nav-active-start), var(--nav-active-end));
  box-shadow: 0 10px 24px var(--nav-active-shadow);
}

.card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  padding: 18px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

body[data-theme="dark"] .card {
  border: 1px solid rgba(65, 85, 107, 0.72);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 56px rgba(43, 57, 73, 0.17);
  border-color: rgba(255, 255, 255, 0.92);
}

h1,
h2,
h3 {
  margin-top: 0;
  letter-spacing: -0.015em;
}

h2 {
  margin-bottom: 10px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 14px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  background: var(--btn-plain-bg);
  border-color: var(--btn-plain-border);
  color: var(--btn-plain-text);
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    filter 0.16s ease,
    border-color 0.16s ease;
}

body[data-theme="dark"] .btn {
  border-color: rgba(78, 106, 133, 0.5);
}

.btn:hover {
  transform: translateY(-1px);
  filter: saturate(1.04);
}

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

.btn-primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(125deg, var(--btn-primary-start), var(--btn-primary-end));
  box-shadow: 0 10px 22px var(--btn-primary-shadow);
}

.btn-danger {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(130deg, var(--btn-danger-start), var(--btn-danger-end));
}

label {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
  color: #4f6070;
  font-size: 0.88rem;
  font-weight: 500;
}

body[data-theme="dark"] label {
  color: #b3c9df;
}

input,
textarea,
select {
  border: 1px solid rgba(156, 173, 189, 0.46);
  border-radius: 11px;
  padding: 10px 11px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  transition:
    border-color 0.17s ease,
    box-shadow 0.17s ease,
    background-color 0.17s ease;
}

body[data-theme="dark"] input,
body[data-theme="dark"] textarea,
body[data-theme="dark"] select {
  border: 1px solid rgba(91, 118, 146, 0.64);
  background: rgba(22, 34, 49, 0.95);
  color: #e4f0fb;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(14, 165, 233, 0.62);
  box-shadow: 0 0 0 4px var(--ring);
  background: #fff;
}

body[data-theme="dark"] input:focus,
body[data-theme="dark"] textarea:focus,
body[data-theme="dark"] select:focus {
  background: rgba(27, 42, 61, 0.98);
}

textarea {
  resize: vertical;
}

.status {
  min-height: 1rem;
  margin: 8px 0 0;
  font-size: 0.84rem;
  color: var(--muted);
}

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

.status.error {
  color: var(--danger);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.mono {
  font-family: "IBM Plex Mono", monospace;
}

.theme-toggle {
  border: 1px solid var(--toggle-border);
  border-radius: 999px;
  background: var(--toggle-bg);
  color: var(--toggle-text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
  line-height: 1;
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}

body[data-theme="dark"] .theme-toggle {
  background: var(--toggle-bg);
  color: var(--toggle-text);
  border-color: var(--toggle-border);
}

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

.reveal {
  animation: soft-fade-up 0.45s ease both;
}

@media (max-width: 920px) {
  .page-shell {
    padding: 16px;
  }

  .top-nav {
    position: static;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}