/* =============================================================================
 * SMM Raydar — Design System (reference client UI)
 * -----------------------------------------------------------------------------
 * A small, dependency-free design system: design tokens (CSS variables) plus a
 * handful of accessible primitives (buttons, inputs, cards, badges, toast).
 * No frameworks, no external fonts, no large background images.
 *
 * Identity: dark navy fintech, indigo/navy cards, violet gradient primary
 * action, clear success green, calm red errors, soft gold for important notes.
 * Fully RTL, mobile-first, high-contrast, reduced-motion aware.
 * ========================================================================== */

:root {
  /* --- Brand / surfaces (dark navy) -------------------------------------- */
  --c-bg: #0b1020;              /* page background (deep navy) */
  --c-bg-2: #0e1530;            /* subtle vertical gradient stop */
  --c-surface: #141c3a;         /* card base (navy) */
  --c-surface-2: #182247;       /* raised / indigo-tinted card */
  --c-surface-3: #1e2a56;       /* inputs, insets */
  --c-elevated: #202c5c;        /* hover / active insets */

  /* --- Text -------------------------------------------------------------- */
  --c-text: #eef1fb;            /* primary text */
  --c-text-soft: #c3cbe6;       /* secondary text */
  --c-text-muted: #8b95bd;      /* muted / helper text */
  --c-text-inverse: #0b1020;    /* text on light (QR card) */

  /* --- Accent (violet gradient) ------------------------------------------ */
  --c-accent: #7c5cff;          /* indigo-violet */
  --c-accent-2: #a855f7;        /* magenta-violet */
  --c-accent-strong: #6d3bf5;
  --grad-primary: linear-gradient(135deg, #7c5cff 0%, #a855f7 100%);
  --grad-primary-hover: linear-gradient(135deg, #8a6bff 0%, #b466f9 100%);

  /* --- Semantic ---------------------------------------------------------- */
  --c-success: #34d399;         /* clear green */
  --c-success-ink: #d1fae5;
  --c-success-bg: rgba(16, 185, 129, 0.12);
  --c-success-border: rgba(52, 211, 153, 0.45);

  --c-danger: #f87171;          /* calm red */
  --c-danger-ink: #fee2e2;
  --c-danger-bg: rgba(239, 68, 68, 0.10);
  --c-danger-border: rgba(248, 113, 113, 0.40);

  --c-gold: #e7c56b;            /* soft gold for important notes */
  --c-gold-ink: #f6e8bf;
  --c-gold-bg: rgba(231, 197, 107, 0.10);
  --c-gold-border: rgba(231, 197, 107, 0.35);

  --c-info: #60a5fa;
  --c-info-bg: rgba(96, 165, 250, 0.10);
  --c-info-border: rgba(96, 165, 250, 0.35);

  /* --- Lines / borders / glow -------------------------------------------- */
  --c-border: rgba(255, 255, 255, 0.09);
  --c-border-soft: rgba(255, 255, 255, 0.06);
  --c-border-strong: rgba(255, 255, 255, 0.16);
  --glow-accent: 0 0 0 1px rgba(124, 92, 255, 0.25),
    0 6px 20px rgba(124, 92, 255, 0.12);
  --focus-ring: 0 0 0 3px rgba(124, 92, 255, 0.5);

  /* --- Shadows ----------------------------------------------------------- */
  --shadow-sm: 0 1px 2px rgba(3, 6, 20, 0.35);
  --shadow-md: 0 6px 18px rgba(3, 6, 20, 0.38);
  --shadow-lg: 0 16px 40px rgba(3, 6, 20, 0.45);

  /* --- Radii ------------------------------------------------------------- */
  --r-xs: 8px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* --- Spacing scale (4px base) ------------------------------------------ */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 32px;
  --sp-8: 40px;
  --sp-9: 56px;

  /* --- Typography -------------------------------------------------------- */
  --font-ar: "Segoe UI", "Tahoma", "Noto Kufi Arabic", system-ui,
    -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas,
    monospace;
  --fs-xs: 0.78rem;
  --fs-sm: 0.88rem;
  --fs-base: 1rem;
  --fs-md: 1.1rem;
  --fs-lg: 1.28rem;
  --fs-xl: 1.6rem;
  --fs-2xl: 2rem;
  --lh: 1.7;

  /* --- Layout ------------------------------------------------------------ */
  --container: 1180px;
  --tap-min: 48px;              /* minimum touch target */

  /* --- Motion ------------------------------------------------------------ */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 120ms;
  --dur: 220ms;
  --dur-slow: 360ms;

  color-scheme: dark;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-ar);
  font-size: var(--fs-base);
  line-height: var(--lh);
  color: var(--c-text);
  background:
    radial-gradient(1200px 620px at 50% -10%, #172150 0%, rgba(23, 33, 80, 0) 60%),
    linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  line-height: 1.3;
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

a {
  color: var(--c-accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

img,
svg {
  display: block;
  max-width: 100%;
}

/* --- Focus visibility (keyboard) ---------------------------------------- */
:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--r-xs);
}

/* =============================================================================
 * Primitives
 * ========================================================================== */

/* --- Card --------------------------------------------------------------- */
.ds-card {
  background: linear-gradient(180deg, var(--c-surface-2) 0%, var(--c-surface) 100%);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-md);
}

.ds-card__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-2);
}

.ds-card__sub {
  color: var(--c-text-soft);
  font-size: var(--fs-sm);
}

/* --- Buttons ------------------------------------------------------------ */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: var(--tap-min);
  padding: 0 var(--sp-6);
  border: 1px solid transparent;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: var(--fs-md);
  font-weight: 700;
  color: #fff;
  background: var(--grad-primary);
  cursor: pointer;
  transition: filter var(--dur) var(--ease),
    transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease);
  box-shadow: 0 4px 14px rgba(124, 92, 255, 0.2);
  -webkit-tap-highlight-color: transparent;
}
.ds-btn:hover {
  background: var(--grad-primary-hover);
}
.ds-btn:active {
  transform: translateY(1px);
}
.ds-btn:disabled,
.ds-btn[aria-busy="true"] {
  opacity: 0.65;
  cursor: not-allowed;
  filter: saturate(0.7);
}

.ds-btn--block {
  width: 100%;
}

.ds-btn--ghost {
  background: transparent;
  color: var(--c-text-soft);
  border-color: var(--c-border-strong);
  box-shadow: none;
}
.ds-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--c-text);
}

.ds-btn--sm {
  min-height: 38px;
  padding: 0 var(--sp-4);
  font-size: var(--fs-sm);
  border-radius: var(--r-sm);
}

.ds-btn--success {
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.25);
}
.ds-btn--success:hover {
  background: linear-gradient(135deg, #14c98d 0%, #47e0a9 100%);
}

/* Inline spinner inside a busy button */
.ds-btn__spin {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: ds-spin 0.8s linear infinite;
  display: none;
}
.ds-btn[aria-busy="true"] .ds-btn__spin {
  display: inline-block;
}
.ds-btn[aria-busy="true"] .ds-btn__label {
  opacity: 0.85;
}

/* --- Fields ------------------------------------------------------------- */
.ds-field {
  display: block;
}
.ds-label {
  display: block;
  margin-bottom: var(--sp-2);
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--c-text-soft);
}
.ds-label__en {
  color: var(--c-text-muted);
  font-weight: 500;
  font-size: var(--fs-xs);
}

.ds-input {
  width: 100%;
  min-height: var(--tap-min);
  padding: 0 var(--sp-4);
  color: var(--c-text);
  background: var(--c-surface-3);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-md);
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  /* usernames / tx ids are latin; keep LTR inside the RTL page */
  direction: ltr;
  text-align: left;
  transition: border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}
.ds-input::placeholder {
  color: var(--c-text-muted);
  opacity: 0.7;
  font-family: var(--font-ar);
  letter-spacing: 0;
  direction: rtl;
  text-align: right;
}
.ds-input:focus {
  outline: none;
  border-color: var(--c-accent);
  background: var(--c-elevated);
  box-shadow: var(--focus-ring);
}

.ds-help {
  margin-top: var(--sp-2);
  color: var(--c-text-muted);
  font-size: var(--fs-xs);
}

/* --- Callouts / notes --------------------------------------------------- */
.ds-note {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  padding: var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border);
  background: var(--c-surface-3);
  font-size: var(--fs-sm);
  color: var(--c-text-soft);
}
.ds-note__icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}
.ds-note--gold {
  background: var(--c-gold-bg);
  border-color: var(--c-gold-border);
  color: var(--c-gold-ink);
}
.ds-note--gold .ds-note__icon {
  color: var(--c-gold);
}
.ds-note--danger {
  background: var(--c-danger-bg);
  border-color: var(--c-danger-border);
  color: var(--c-danger-ink);
}
.ds-note--danger .ds-note__icon {
  color: var(--c-danger);
}
.ds-note--info {
  background: var(--c-info-bg);
  border-color: var(--c-info-border);
}
.ds-note--info .ds-note__icon {
  color: var(--c-info);
}

/* --- Badge / pill ------------------------------------------------------- */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 4px var(--sp-3);
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  font-weight: 700;
  border: 1px solid var(--c-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-text-soft);
}
.ds-badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}
.ds-badge--secure {
  color: var(--c-success-ink);
  border-color: var(--c-success-border);
  background: var(--c-success-bg);
}
.ds-badge--success {
  color: var(--c-success-ink);
  border-color: var(--c-success-border);
  background: var(--c-success-bg);
}
.ds-badge--warn {
  color: var(--c-gold-ink);
  border-color: var(--c-gold-border);
  background: var(--c-gold-bg);
}
.ds-badge--danger {
  color: var(--c-danger-ink);
  border-color: var(--c-danger-border);
  background: var(--c-danger-bg);
}
.ds-badge--official {
  color: #cfe0ff;
  border-color: rgba(96, 165, 250, 0.5);
  background: rgba(96, 165, 250, 0.14);
}
.ds-badge--official svg {
  color: var(--c-info);
}

/* --- Spinner ------------------------------------------------------------ */
.ds-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--c-border-strong);
  border-top-color: var(--c-accent);
  border-radius: 50%;
  animation: ds-spin 0.9s linear infinite;
}
@keyframes ds-spin {
  to {
    transform: rotate(360deg);
  }
}

/* --- Toast -------------------------------------------------------------- */
.ds-toast {
  position: fixed;
  inset-block-end: calc(var(--sp-6) + env(safe-area-inset-bottom, 0px));
  inset-inline-start: 50%;
  transform: translateX(50%) translateY(12px);
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--r-pill);
  background: rgba(16, 185, 129, 0.95);
  color: #04231a;
  font-weight: 700;
  font-size: var(--fs-sm);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
/* RTL note: translateX(50%) centres because the inline-start origin is on the
 * right in RTL; this keeps the toast horizontally centred. */
.ds-toast.is-visible {
  opacity: 1;
  transform: translateX(50%) translateY(0);
}

/* --- Utilities ---------------------------------------------------------- */
.ds-visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

/* --- Reduced motion ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}