/* ==========================================================================
   AZOLLA EGYPT - Mobile App Dedicated Touch Stylesheet (mobile.css)
   Compliant with mobile-app-apk-engineer & Zero-False-Positive Architecture
   ========================================================================== */

:root {
  --app-primary: #064E3B;
  --app-primary-dark: #042F24;
  --app-primary-light: #10B981;
  --app-accent-gold: #D97706;
  --app-accent-light: #FEF3C7;
  --app-bg: #F8FAFC;
  --app-surface: #FFFFFF;
  --app-card: #FFFFFF;
  --app-text: #0F172A;
  --app-text-muted: #475569;
  --app-border: #E2E8F0;
  --bottom-bar-height: 68px;
  --top-header-height: 58px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
  --shadow-float: 0 8px 24px rgba(16, 185, 129, 0.35);
}

[data-theme="dark"] {
  --app-bg: #0F172A;
  --app-surface: #1E293B;
  --app-card: #1E293B;
  --app-text: #F8FAFC;
  --app-text-muted: #94A3B8;
  --app-border: rgba(255, 255, 255, 0.12);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

input, textarea, select {
  user-select: auto;
  -webkit-user-select: auto;
}

body {
  font-family: 'Cairo', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--app-bg);
  color: var(--app-text);
  direction: rtl;
  text-align: right;
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: var(--top-header-height);
  padding-bottom: calc(var(--bottom-bar-height) + env(safe-area-inset-bottom, 16px) + 36px);
  min-height: 100vh;
}

/* App Header */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--top-header-height);
  background: var(--app-primary-dark);
  border-bottom: 1px solid var(--app-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: #FFFFFF;
}

.app-brand img {
  height: 32px;
  width: auto;
  border-radius: var(--radius-sm);
}

.app-brand-name {
  font-weight: 900;
  font-size: 0.98rem;
  letter-spacing: -0.3px;
  color: #FFFFFF;
}

.app-brand-sub {
  display: block;
  font-size: 0.65rem;
  color: #A7F3D0;
  font-weight: 600;
  line-height: 1.1;
}

.app-header-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.header-icon-btn {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #FFFFFF;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}

.header-icon-btn:active {
  transform: scale(0.92);
  background: rgba(255, 255, 255, 0.2);
}

/* App Views Container */
.app-view-container {
  padding: 1rem 1rem 2.5rem 1rem;
  max-width: 600px;
  margin: 0 auto;
}

.app-view {
  display: none;
  animation: viewFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-view.active {
  display: block;
}

@keyframes viewFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Bottom Navigation Bar */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--bottom-bar-height) + env(safe-area-inset-bottom, 12px));
  padding-bottom: env(safe-area-inset-bottom, 12px);
  background: var(--app-surface);
  border-top: 1px solid var(--app-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--app-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.35rem 0;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.15s ease;
  position: relative;
}

.nav-item i {
  font-size: 1.15rem;
  margin-bottom: 0.2rem;
  transition: transform 0.2s ease;
}

.nav-item:active {
  transform: scale(0.92);
}

.nav-item.active {
  color: var(--app-primary-light);
}

.nav-item.active i {
  transform: scale(1.15);
}

/* Center Calculators Elevated Button */
.nav-item-calc {
  position: relative;
  top: -12px;
}

.calc-float-circle {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: var(--shadow-float);
  border: 3px solid var(--app-surface);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.nav-item-calc:active .calc-float-circle {
  transform: scale(0.9);
}

.nav-item-calc.active .calc-float-circle {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}

.calc-float-label {
  font-size: 0.72rem;
  font-weight: 900;
  color: var(--app-primary-light);
  margin-top: 0.15rem;
}

.nav-item-calc.active .calc-float-label {
  color: var(--app-accent-gold);
}

/* Cards & UI Elements */
.mobile-card {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}

.mobile-card-gradient {
  background: linear-gradient(135deg, #064E3B 0%, #042F24 100%);
  color: #FFFFFF;
  border: 1px solid #10B981;
}

.mobile-title {
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.mobile-subtitle {
  font-size: 0.85rem;
  color: var(--app-text-muted);
  margin-bottom: 1rem;
  line-height: 1.5;
}

/* Action Sheet Modal (Sliding from bottom) */
.action-sheet-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.action-sheet-overlay.open {
  opacity: 1;
  visibility: visible;
}

.action-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 86vh;
  background: var(--app-surface);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem calc(1.5rem + env(safe-area-inset-bottom, 12px));
  z-index: 2001;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  border-top: 2px solid var(--app-primary-light);
  box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.4);
}

.action-sheet.open {
  transform: translateY(0);
}

.action-sheet-pill {
  width: 44px;
  height: 5px;
  border-radius: var(--radius-full);
  background: var(--app-border);
  margin: 0 auto 1.25rem auto;
}

.action-sheet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--app-border);
  padding-bottom: 0.75rem;
}

.action-sheet-title {
  font-size: 1.15rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.action-sheet-close {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--app-text);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-sheet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.action-sheet-item {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  color: var(--app-text);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.action-sheet-item:active {
  transform: scale(0.95);
  border-color: var(--app-primary-light);
}

.action-sheet-item i {
  font-size: 1.4rem;
  color: var(--app-primary-light);
}

.action-sheet-item span {
  font-size: 0.8rem;
  font-weight: 800;
}

/* Calculator Tabs in Mobile (2x2 Balanced Grid - Zero Clipping) */
.calc-pill-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.calc-pill-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--app-bg);
  border: 1.5px solid var(--app-border);
  color: var(--app-text);
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.calc-pill-btn:active {
  transform: scale(0.97);
}

.calc-pill-btn.active {
  background: #064E3B;
  border-color: #10B981;
  color: #FFFFFF;
  box-shadow: 0 3px 10px rgba(6, 78, 59, 0.25);
}

.calc-pill-btn.active i {
  color: #FDE68A;
}

/* Touch Input Controls */
.mobile-input-group {
  margin-bottom: 1.1rem;
}

.mobile-input-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.mobile-input-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--app-bg);
  border: 1.5px solid var(--app-border);
  color: var(--app-text);
  font-family: inherit;
  font-size: 0.95rem;
}

.mobile-input-control:focus {
  outline: none;
  border-color: var(--app-primary-light);
}

.range-slider-wrapper {
  margin-top: 0.3rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--app-primary-light);
  height: 6px;
  border-radius: 4px;
}

/* Result Card - High Contrast Crisp Green & Amber */
.calc-result-box {
  background: #ECFDF5;
  border: 2px solid #10B981;
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  margin-top: 1.25rem;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.12);
}

[data-theme="dark"] .calc-result-box {
  background: #0B291D;
  border-color: #10B981;
}

.result-kpi-label {
  font-size: 0.88rem;
  font-weight: 800;
  color: #064E3B;
  line-height: 1.4;
}

[data-theme="dark"] .result-kpi-label {
  color: #E2ECE9;
}

.result-kpi-val {
  font-size: 2.1rem;
  font-weight: 900;
  color: #D97706;
  line-height: 1.2;
  margin: 0.4rem 0;
}

[data-theme="dark"] .result-kpi-val {
  color: #F59E0B;
}

.calc-result-box strong {
  color: #047857;
  font-weight: 900;
}

[data-theme="dark"] .calc-result-box strong {
  color: #34D399;
}

/* Mobile Buttons */
.btn-mobile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 800;
  font-family: inherit;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-mobile:active {
  transform: scale(0.97);
}

.btn-mobile-primary {
  background: var(--app-primary-light);
  color: #FFFFFF;
}

.btn-mobile-whatsapp {
  background: #25D366;
  color: #FFFFFF;
}

.btn-mobile-gold {
  background: var(--app-accent-gold);
  color: #0F172A;
}

/* Offline Banner */
.offline-status-banner {
  background: #F59E0B;
  color: #0F172A;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 800;
  text-align: center;
  display: none;
}

.offline-status-banner.show {
  display: block;
}