/* ==========================================================================
   Hermes AI Crypto Trading Platform — Modern Web Stylesheet
   Complies with Modern Web Guidance:
   - :user-invalid / :user-valid + :has() rule highlighting
   - Dynamic viewport units (dvh), CSS Grid + Subgrid, @container queries
   - Logical properties, clamp() fluid typography, >= 48px tap targets
   ========================================================================== */

:root {
  --bg-primary: #070b14;
  --bg-surface: #0f172a;
  --bg-elevated: #162038;
  --bg-input: #0b1120;
  --border-subtle: #1e293b;
  --border-focus: #38bdf8;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #0ea5e9;
  --accent-secondary: #6366f1;
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.12);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.14);
  --color-warning: #f59e0b;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --shadow-card: 0 20px 45px -15px rgba(2, 6, 23, 0.75);
  color-scheme: dark;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  min-block-size: 100dvh;
}

/* ==========================================================================
   AUTHENTICATION SHELL (Login, Sign Up, Forgot Password, TOTP 2FA)
   ========================================================================== */
.auth-page {
  display: flex;
  flex-direction: column;
  justify-content: safe center;
  align-items: safe center;
  min-block-size: 100dvh;
  padding-block: 2.5rem;
  padding-inline: 1.5rem;
  background:
    radial-gradient(circle at 15% 15%, rgba(14, 165, 233, 0.14), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(99, 102, 241, 0.14), transparent 40%),
    var(--bg-primary);
}

.auth-container {
  inline-size: 100%;
  max-inline-size: 520px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding-block: 2.25rem;
  padding-inline: 2.25rem;
  box-shadow: var(--shadow-card);
}

.brand-header {
  display: flex;
  align-items: safe center;
  gap: 0.875rem;
  margin-block-end: 1.5rem;
}

.brand-logo {
  inline-size: 44px;
  block-size: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: grid;
  place-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  color: #fff;
  flex-shrink: 0;
}

.brand-title {
  margin: 0;
  font-size: clamp(1.25rem, 1rem + 1vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.env-pill {
  margin-inline-start: auto;
  font-size: 0.72rem;
  font-weight: 600;
  padding-block: 0.25rem;
  padding-inline: 0.6rem;
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.auth-tabs {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  gap: 0.5rem;
  background: var(--bg-input);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  margin-block-end: 1.5rem;
  border: 1px solid var(--border-subtle);
}

.auth-tab-btn {
  flex: 1 1 120px;
  min-block-size: 42px;
  border: none;
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.auth-tab-btn[aria-selected="true"] {
  background: var(--bg-elevated);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

/* ==========================================================================
   SEMANTIC FORMS & :user-invalid / :user-valid VALIDATION
   ========================================================================== */
.field {
  margin-block-end: 1.25rem;
}

/* Gestalt Proximity Rule: label-to-input margin smaller than group margin */
label {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  padding-block: 8px;
  margin-block: -8px 0.25rem;
}

.hint,
.rules-list {
  display: block;
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-block: 0 0.4rem;
}

.rules-list {
  padding-inline-start: 1.2rem;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: safe center;
}

input[type="email"],
input[type="password"],
input[type="text"],
select {
  inline-size: 100%;
  font-size: 1rem; /* >= 16px prevents mobile browser auto-zoom */
  padding-block: 0.75rem;
  padding-inline: 0.875rem;
  min-block-size: 48px;
  border-radius: 0.625rem;
  border: 1.5px solid var(--border-subtle);
  background-color: var(--bg-input);
  color: var(--text-primary);
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

@media (pointer: coarse) {
  input[type="email"],
  input[type="password"],
  input[type="text"],
  select,
  button {
    min-block-size: 52px;
  }
}

input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: 3px solid var(--border-focus);
  outline-offset: 2px;
}

/* Validate only after user interaction (:user-invalid + JS WeakMap fallback) */
input:user-invalid,
input.user-invalid-fallback {
  border-color: var(--color-danger);
  background-color: var(--color-danger-bg);
}

input:user-valid,
input.user-valid-fallback {
  border-color: var(--color-success);
}

.error-msg {
  display: none;
  color: #fca5a5;
  font-size: 0.84rem;
  margin-block-start: 0.35rem;
}

input:user-invalid ~ .error-msg,
input.user-invalid-fallback ~ .error-msg,
.input-wrapper:has(input:user-invalid) + .error-msg,
.input-wrapper:has(input.user-invalid-fallback) + .error-msg {
  display: block;
}

/* Highlight password complexity rules when invalid after interaction */
.field:has(input:user-invalid) .rules-list,
.field:has(input.user-invalid-fallback) .rules-list {
  color: #fca5a5;
  font-weight: 600;
}

/* Hide password rules list once satisfied */
.field:has(input:user-valid) .rules-list,
.field:has(input.user-valid-fallback) .rules-list {
  display: none;
}

/* Single-input OTP / TOTP styling per sms-otp-form guide */
.totp-single-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.35rem !important;
  letter-spacing: 0.38em;
  text-align: center;
  font-weight: 700;
}

.password-toggle-btn {
  position: absolute;
  inset-inline-end: 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding-block: 0.4rem;
  padding-inline: 0.6rem;
  min-block-size: 38px;
  cursor: pointer;
  border-radius: 0.375rem;
}

.password-toggle-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.btn-primary {
  inline-size: 100%;
  min-block-size: 48px;
  padding-block: 0.75rem;
  padding-inline: 1.25rem;
  border: none;
  border-radius: 0.625rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.94;
}

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

.btn-secondary {
  min-block-size: 44px;
  padding-block: 0.6rem;
  padding-inline: 1rem;
  border-radius: 0.625rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.link-btn {
  background: none;
  border: none;
  color: #38bdf8;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  padding-block: 0.4rem;
  padding-inline: 0;
  text-decoration: underline;
}

.status-banner {
  padding-block: 0.75rem;
  padding-inline: 1rem;
  border-radius: 0.625rem;
  font-size: 0.88rem;
  margin-block-end: 1rem;
  border: 1px solid transparent;
}

.status-banner.error {
  background: var(--color-danger-bg);
  border-color: rgba(239, 68, 68, 0.4);
  color: #fecaca;
}

.status-banner.success {
  background: var(--color-success-bg);
  border-color: rgba(16, 185, 129, 0.4);
  color: #a7f3d0;
}

.visually-hidden {
  position: absolute;
  clip-path: inset(50%);
  overflow: hidden;
  inline-size: 1px;
  block-size: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  white-space: nowrap;
}

.qr-enrollment-box {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-block-end: 1.25rem;
  text-align: center;
}

.secret-code-pill {
  display: inline-block;
  font-family: ui-monospace, monospace;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  background: var(--bg-elevated);
  padding-block: 0.4rem;
  padding-inline: 0.75rem;
  border-radius: 0.5rem;
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.25);
  margin-block: 0.5rem;
  user-select: all;
}

/* ==========================================================================
   AUTHENTICATED TRADING DASHBOARD LAYOUT (Grid + Subgrid + Container Queries)
   ========================================================================== */
.dashboard-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  grid-template-areas:
    "header  header"
    "sidebar main";
  min-block-size: 100dvh;
}

@media (max-width: 960px) {
  .dashboard-shell {
    display: flex;
    flex-direction: column;
    min-block-size: 100dvh;
  }
  .dashboard-sidebar {
    display: none;
  }
}

.dashboard-header {
  grid-area: header;
  display: flex;
  flex-wrap: wrap;
  align-items: safe center;
  gap: 0.85rem;
  padding-block: 0.875rem;
  padding-inline: clamp(0.85rem, 2.5vw, 1.5rem);
  background: var(--bg-surface);
  border-block-end: 1px solid var(--border-subtle);
}

.header-actions {
  margin-inline-start: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: safe center;
  gap: 0.65rem;
}

@media (max-width: 640px) {
  .header-actions {
    margin-inline-start: 0;
    inline-size: 100%;
    justify-content: space-between;
  }
}

.nav-switch-btn[aria-pressed="true"] {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
}

.dashboard-sidebar {
  grid-area: sidebar;
  background: var(--bg-surface);
  border-inline-end: 1px solid var(--border-subtle);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dashboard-main {
  grid-area: main;
  min-inline-size: 0;
  padding: clamp(0.85rem, 2.5vw, 1.5rem);
  overflow-x: hidden;
  overflow-y: visible;
}

/* Subgrid Metric Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  grid-template-rows: auto 1fr auto;
  gap: 1rem;
  margin-block-end: 1.5rem;
}

.metric-card {
  container: metric / inline-size;
  grid-row: span 3;
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-rows: subgrid;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  min-inline-size: 0;
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.metric-value {
  font-size: clamp(1.25rem, 4cqi, 1.85rem);
  font-weight: 800;
  margin-block: 0.35rem;
}

.metric-foot {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 1.25rem;
  margin-block-end: 1.5rem;
}

@media (max-width: 1180px) {
  .workspace-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(0.95rem, 2vw, 1.25rem);
  min-inline-size: 0;
}

.chart-canvas-box {
  position: relative;
  inline-size: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 0.75rem;
  padding: 0.5rem;
  overflow: clip;
}

#crypto-chart-canvas {
  display: block;
  inline-size: 100%;
  block-size: auto;
  min-block-size: 260px;
}

.interval-pills {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  gap: 0.35rem;
}

.interval-pill {
  min-block-size: 34px;
  padding-inline: 0.65rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.interval-pill[aria-pressed="true"] {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
}

.indicator-chips {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  gap: 0.45rem;
  margin-block: 0.85rem;
}

.indicator-chip {
  font-size: 0.76rem;
  padding-block: 0.25rem;
  padding-inline: 0.6rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: #cbd5e1;
}

.indicator-toggle-btn {
  display: inline-flex;
  align-items: safe center;
  gap: 0.4rem;
  font-size: 0.76rem;
  font-weight: 600;
  min-block-size: 32px;
  padding-block: 0.25rem;
  padding-inline: 0.65rem;
  border-radius: 999px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.indicator-toggle-btn[aria-pressed="true"] {
  background: rgba(14, 165, 233, 0.16);
  border-color: rgba(56, 189, 248, 0.55);
  color: var(--text-primary);
}

.signal-param-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-block: 1rem;
}

@media (max-width: 560px) {
  .signal-param-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.signal-param-box {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 0.625rem;
  padding: 0.75rem;
  min-inline-size: 0;
}

.stepper-row {
  display: flex;
  align-items: safe center;
  justify-content: space-between;
  gap: 0.4rem;
  margin-block-start: 0.35rem;
}

.stepper-btn {
  inline-size: 34px;
  min-block-size: 34px;
  padding: 0;
  border-radius: 0.5rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 800;
  display: grid;
  place-content: center;
  cursor: pointer;
  flex-shrink: 0;
  user-select: none;
}

.stepper-btn:hover {
  border-color: var(--accent-primary);
  background: rgba(14, 165, 233, 0.2);
}

.auto-trade-toggle-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: safe center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Native <dialog> modal styling */
dialog.hermes-dialog {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  inline-size: min(92vw, 440px);
  box-shadow: var(--shadow-card);
}

dialog.hermes-dialog::backdrop {
  background: rgba(2, 6, 23, 0.78);
  backdrop-filter: blur(4px);
}

.trades-table-wrap {
  overflow-x: auto;
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
}

table.trades-table {
  inline-size: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

table.trades-table th,
table.trades-table td {
  text-align: start;
  padding-block: 0.75rem;
  padding-inline: 0.75rem;
  border-block-end: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Admin -> Settings Responsive Table (Modern Web Guidance: responsive-table)
   ========================================================================== */
.table-wrapper {
  overflow: auto;
  max-block-size: 75vh;
  container-type: inline-size;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
}

.responsive-admin-table {
  inline-size: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}

.responsive-admin-table th,
.responsive-admin-table td {
  padding-block: 0.85rem;
  padding-inline: 1rem;
  text-align: start;
  border-block-end: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  vertical-align: middle;
}

/* Sticky Column Headers */
.responsive-admin-table thead {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
}

.responsive-admin-table thead th {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

/* Sticky Row Headers */
.responsive-admin-table tbody th {
  position: sticky;
  inset-inline-start: 0;
  z-index: 1;
  background: var(--bg-surface);
}

/* Top-Start Corner Intersection */
.responsive-admin-table thead th:first-child {
  position: sticky;
  inset-inline-start: 0;
  z-index: 3;
}

/* Container-Query Stacked Card View on Narrow Containers (< 600px) */
@container (width < 600px) {
  .responsive-admin-table thead {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }

  .responsive-admin-table,
  .responsive-admin-table tbody,
  .responsive-admin-table tr,
  .responsive-admin-table th,
  .responsive-admin-table td {
    display: block;
    inline-size: 100%;
  }

  .responsive-admin-table tr {
    margin-block-end: 1rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.5rem;
  }

  .responsive-admin-table tbody th {
    position: static;
    background: var(--bg-elevated);
    border-radius: 0.5rem;
    margin-block-end: 0.5rem;
  }

  .responsive-admin-table td {
    display: grid;
    grid-template-columns: 7.5rem 1fr;
    gap: 0.75rem;
    align-items: center;
    border: none;
    padding-block: 0.5rem;
  }

  .responsive-admin-table td::before {
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
  }

  .responsive-admin-table td:nth-child(2)::before { content: var(--label-2); }
  .responsive-admin-table td:nth-child(3)::before { content: var(--label-3); }
  .responsive-admin-table td:nth-child(4)::before { content: var(--label-4); }
  .responsive-admin-table td:nth-child(5)::before { content: var(--label-5); }
}

/* ==========================================================================
   AI Predicted Trade Setup — Exclusive Accordion Tabs
   ========================================================================== */
.trade-accordion-group {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-block-end: 0.85rem;
}

.trade-accordion-item {
  border-radius: 0.75rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.trade-accordion-item[open] {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.35);
  background: rgba(15, 23, 42, 0.72);
}

#accordion-best-trade[open] {
  border-color: var(--color-success);
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.4);
}

.trade-accordion-summary {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: safe center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem 0.9rem;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-primary);
  background: rgba(30, 41, 59, 0.55);
}

.trade-accordion-summary::-webkit-details-marker {
  display: none;
}

.trade-accordion-title-wrap {
  display: inline-flex;
  align-items: safe center;
  gap: 0.55rem;
  min-inline-size: 0;
}

.trade-accordion-radio {
  inline-size: 14px;
  block-size: 14px;
  border-radius: 999px;
  border: 2px solid var(--text-secondary);
  display: inline-block;
  flex: 0 0 14px;
  position: relative;
}

.trade-accordion-item[open] .trade-accordion-radio {
  border-color: var(--accent-primary);
  background: var(--accent-primary);
  box-shadow: inset 0 0 0 2.5px #0f172a;
}

#accordion-best-trade[open] .trade-accordion-radio {
  border-color: var(--color-success);
  background: var(--color-success);
}

.trade-accordion-body {
  padding: 0.65rem 0.85rem 0.85rem;
  border-block-start: 1px solid var(--border-subtle);
}