/* ============================================================
   Makruva Design System — Layout System
   ============================================================ */

/* ===== CONTAINER ===== */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-sm  { max-width: var(--container-sm); }
.container-md  { max-width: var(--container-md); }
.container-lg  { max-width: var(--container-lg); }
.container-narrow { max-width: 600px; }

@media (max-width: 640px) {
  .container { padding: 0 var(--space-4); }
}

/* ===== FLEX UTILITIES ===== */

.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.flex-wrap    { flex-wrap: wrap; }
.items-start  { align-items: flex-start; }
.items-center { align-items: center; }
.items-end    { align-items: flex-end; }
.justify-start   { justify-content: flex-start; }
.justify-center  { justify-content: center; }
.justify-end     { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.flex-1       { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* ===== GAP ===== */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-7 { gap: var(--space-7); }
.gap-8 { gap: var(--space-8); }

/* ===== GRID ===== */
.grid     { display: grid; }
.grid-2   { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.grid-3   { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4   { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-4); }

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}

/* ===== SPACING UTILITIES ===== */
.mt-0  { margin-top: 0; }
.mt-1  { margin-top: var(--space-1); }
.mt-2  { margin-top: var(--space-2); }
.mt-3  { margin-top: var(--space-3); }
.mt-4  { margin-top: var(--space-4); }
.mt-5  { margin-top: var(--space-5); }
.mt-6  { margin-top: var(--space-6); }
.mt-7  { margin-top: var(--space-7); }
.mt-8  { margin-top: var(--space-8); }
.mt-9  { margin-top: var(--space-9); }
.mt-10 { margin-top: var(--space-10); }

.mb-0  { margin-bottom: 0; }
.mb-2  { margin-bottom: var(--space-2); }
.mb-3  { margin-bottom: var(--space-3); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-5  { margin-bottom: var(--space-5); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-7  { margin-bottom: var(--space-7); }
.mb-8  { margin-bottom: var(--space-8); }

.p-3  { padding: var(--space-3); }
.p-4  { padding: var(--space-4); }
.p-5  { padding: var(--space-5); }
.p-6  { padding: var(--space-6); }
.p-7  { padding: var(--space-7); }
.p-8  { padding: var(--space-8); }

/* ===== DISPLAY ===== */
.hidden      { display: none !important; }
.block       { display: block; }
.inline      { display: inline; }
.inline-flex { display: inline-flex; }

/* ===== WIDTH / HEIGHT ===== */
.w-full       { width: 100%; }
.h-full       { height: 100%; }
.min-h-screen { min-height: 100dvh; }

/* ===== BORDER RADIUS UTILS ===== */
.rounded-sm   { border-radius: var(--radius-sm); }
.rounded-md   { border-radius: var(--radius-md); }
.rounded-lg   { border-radius: var(--radius-lg); }
.rounded-xl   { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ===== MOBILE-FIRST APP SHELL (phone-in-browser frame) ===== */
/* User panel displayed as a phone frame centered in the browser */

.app-body {
  height: 100%;
  overflow: hidden;
  background: var(--color-surface);
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-frame {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100dvh;
  overflow: hidden;
  background: var(--color-bg);
}

@media (min-width: 640px) {
  .app-body { background: #E8F4FF; }
  .app-frame { max-width: 540px; }
}

@media (min-width: 900px) {
  .app-frame {
    max-width: 440px;
    height: calc(100dvh - 48px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl),
                0 0 0 1px rgba(18,139,246,0.08);
    overflow: hidden;
  }
}

/* App topbar (inside frame) */
.app-topbar {
  flex-shrink: 0;
  height: 52px;
  z-index: var(--z-sticky);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  gap: var(--space-3);
  position: relative;
}

.app-topbar__back,
.app-topbar__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast), background var(--duration-fast);
  flex-shrink: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}
.app-topbar__back:hover,
.app-topbar__action:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.app-topbar__brand {
  font-size: 11px;
  font-weight: var(--font-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  flex-shrink: 0;
}

.app-topbar__spacer { flex: 1; }

.app-topbar__label {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
  max-width: 170px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Progress bar inside topbar */
.app-topbar__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-border);
}
.app-topbar__progress-fill {
  height: 100%;
  background: var(--gradient-cta);
  transition: width var(--duration-slow) var(--ease-out);
  border-radius: 0 1px 1px 0;
}

/* Scrollable content area */
.app-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
}
.app-scroll::-webkit-scrollbar { display: none; }

.app-content { padding: var(--space-4) var(--space-4) 88px; }

/* Bottom navigation */
.app-bottom-nav {
  flex-shrink: 0;
  display: flex;
  justify-content: space-around;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-2) 0 env(safe-area-inset-bottom);
}

.app-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  font-weight: var(--font-bold);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-1) var(--space-5);
  transition: color var(--duration-fast);
  letter-spacing: 0.02em;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}

.app-nav-item.active { color: var(--color-primary); }
.app-nav-item .material-symbols-rounded { font-size: 22px; }

/* Carousel dots */
.app-dots {
  flex-shrink: 0;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  background: rgba(255,255,255,0.9);
  border-top: 1px solid var(--color-border-light);
}

.app-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}
.app-dot.active {
  background: var(--color-primary);
  transform: scale(1.4);
}
.app-dot.done { background: var(--color-text-muted); }
.app-dot.wide { width: 18px; border-radius: 3px; }

/* ===== FORM PAGE SHELL (login, pay, onboarding) ===== */

.form-shell {
  min-height: 100dvh;
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.form-card {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-7);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-light);
}

@media (max-width: 480px) {
  .form-shell {
    padding: var(--space-4);
    justify-content: flex-start;
    padding-top: var(--space-8);
  }
  .form-card {
    padding: var(--space-6) var(--space-5);
    border-radius: var(--radius-lg);
  }
}

/* ===== SECTION CARD (for content pages) ===== */
.section-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-4);
}