/* ==========================================================================
   AquaBill JO — حاسبة فاتورة المياه الأردنية — ملف الأنماط الموحد (Refactored)
   ------------------------------------------------------------------------
   الأقسام:
     1. Variables         → نظام التصميم المركزي ومتغيرات السمة (Light/Dark)
     2. Base & Reset       → إعادة الضبط الأساسية والتهيئة العامة
     3. Typography         → الخطوط والعناوين والهيكلية النصية
     4. Layout             → الحاوية، الترويسة، التموّج البصري، التذييل
     5. Cards & Overrides  → بطاقات الواجهة، التأثيرات الحركية، وبوكس الخطوة الأولى
     6. Forms & Inputs     → حقول الإدخال، التسميات، وتوحيد خلفيات الحقول والنتائج
     7. Tables             → جداول التعرفة وحقولها
     8. Buttons & Actions  → أزرار التحكم، التبديل، القفل، والأنماط الثانوية
     9. PWA Toast          → بنر تثبيت التطبيق العائم والتجاوبي
     10. Share & QR Modal  → قائمة المشاركة الاحتياطية ونافذة الـ QR
     11. Utilities         → الشارات، التلميحات، شريط التمرير، والوصولية
     12. Animations        → الانتقالات، الحركات، وتخفيض الحركة (Reduced Motion)
   ========================================================================== */


/* ==========================================================================
   1. VARIABLES — المتغيرات المركزية ودعم السمات (Light & Dark Mode)
   ========================================================================== */
:root {
  /* ألوان العلامة التجارية والتصميم (الوضع الفاتح) */
  --bg: #F2F6F5;
  --card: #FFFFFF;
  --ink: #16302B;
  --ink-soft: #4B6560;
  --teal: #0B4F45;
  --teal-light: #E1F0EC;
  --gold: #B98A1F;
  --gold-text: #8F6712;
  --gold-light: #FBF1DD;
  --green-bg: #EAF3DE;
  --green-ink: #27500A;
  --amber-bg: #FAEEDA;
  --amber-ink: #633806;
  --red-bg: #FCEBEB;
  --red-ink: #791F1F;
  --border: rgba(11, 79, 69, 0.14); /* تم إصلاح الفاصلة المنقوطة */
  --accent-strong: var(--teal);

  /* متغيرات الحقول والعناصر */
  --input-bg: #F2F6F5;
  --border-radius: var(--radius-md);
  --readonly-bg: #EEF2F1;

  /* متغيرات النوافذ القائمة بذاتها (QR & Share) */
  --qr-card-bg: #FFFFFF;
  --qr-text-color: #1A202C;
  --close-qr-bg: rgba(0, 0, 0, 0.08);
  --close-qr-hover-bg: rgba(0, 0, 0, 0.15);
  --close-qr-text: #2D3748;

  --share-fallback-bg: #FFFFFF;
  --share-border: rgba(0, 0, 0, 0.15);
  --share-option-color: #1C2D42;
  --share-option-hover: rgba(0, 0, 0, 0.05);

  --warning-bg: rgba(239, 68, 68, 0.1);
  --warning-color: #991B1B;
  --warning-border: rgba(239, 68, 68, 0.25);

  /* قياسات موحدة */
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-card: 0 10px 24px -18px rgba(11, 79, 69, 0.35);

  --space-xs: 0.35rem;
  --space-sm: 0.6rem;
  --space-md: 1rem;
  --space-lg: 1.3rem;

  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
}

/* الكشف التلقائي للوضع الداكن عبر النظام */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1613;
    --card: #16211D;
    --ink: #E7F1EE;
    --ink-soft: #9FB6B0;
    --teal-light: #1B3B34;
    --gold: #E7C468;
    --gold-text: #E7C468;
    --gold-light: #2A2216;
    --border: rgba(255, 255, 255, 0.12);
    --accent-strong: #5EEAD4;

    --input-bg: #10201B;
    --readonly-bg: #172723;

    --qr-card-bg: #16211D;
    --qr-text-color: #F7FAFC;
    --close-qr-bg: rgba(255, 255, 255, 0.15);
    --close-qr-hover-bg: rgba(255, 255, 255, 0.25);
    --close-qr-text: #FFFFFF;

    --share-fallback-bg: #16211D;
    --share-border: rgba(255, 255, 255, 0.15);
    --share-option-color: #FFFFFF;
    --share-option-hover: rgba(255, 255, 255, 0.12);

    --warning-bg: rgba(239, 68, 68, 0.18);
    --warning-color: #FCA5A5;
    --warning-border: rgba(239, 68, 68, 0.4);
  }
}

/* التبديل اليدوي الصريح للوضع الداكن */
:root[data-theme="dark"],
body.dark-mode,
body.dark-theme {
  --bg: #0E1613;
  --card: #16211D;
  --ink: #E7F1EE;
  --ink-soft: #9FB6B0;
  --teal-light: #1B3B34;
  --gold: #E7C468;
  --gold-text: #E7C468;
  --gold-light: #2A2216;
  --border: rgba(255, 255, 255, 0.12);
  --accent-strong: #5EEAD4;

  --input-bg: #10201B;
  --readonly-bg: #172723;

  --qr-card-bg: #16211D;
  --qr-text-color: #F7FAFC;
  --close-qr-bg: rgba(255, 255, 255, 0.15);
  --close-qr-hover-bg: rgba(255, 255, 255, 0.25);
  --close-qr-text: #FFFFFF;

  --share-fallback-bg: #16211D;
  --share-border: rgba(255, 255, 255, 0.15);
  --share-option-color: #FFFFFF;
  --share-option-hover: rgba(255, 255, 255, 0.12);

  --warning-bg: rgba(239, 68, 68, 0.18);
  --warning-color: #FCA5A5;
  --warning-border: rgba(239, 68, 68, 0.4);
}


/* ==========================================================================
   2. BASE & RESET — الضبط الأساسي
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Tajawal', sans-serif;
  line-height: 1.7;
  transition: background-color var(--transition-base), color var(--transition-base);
}


/* ==========================================================================
   3. TYPOGRAPHY — الخطوط والعناوين
   ========================================================================== */
header h1 {
  font-size: 1.6rem;
  font-weight: 900;
  margin: 0;
  position: relative;
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

header h1 .jo-badge {
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #f3d078, #b98a1f);
  color: #0b4f45;
  padding: 0.2rem 0.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.brand-tagline-ar {
  font-size: 0.85rem;
  font-weight: 600;
  color: #e1f0ec;
  margin-top: 0.25rem;
}

header p {
  font-size: 0.92rem;
  color: #d1e7e2;
  margin: 0.6rem 0 0;
  max-width: 38ch;
  line-height: 1.6;
  position: relative;
}

/* عناوين الأقسام الرئيسية */
h2 {
  font-size: 1.02rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--accent-strong);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

h2 .titlewrap {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

h2 .eyebrow2 {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-text);
}

h2 .titletext {
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.brandtext .eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: #CFE6E0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.15rem;
}

.brandtext .eyebrow .flagchip {
  display: inline-flex;
  width: 16px;
  height: 11px;
  border-radius: 2px;
  overflow: hidden;
  border: 0.5px solid rgba(255, 255, 255, 0.4);
  flex: none;
}

.brandtext .eyebrow .flagchip span {
  flex: 1;
}


/* ==========================================================================
   4. LAYOUT — الترويسة، التنسيق العام، والتذييل
   ========================================================================== */
.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 0 3rem;
}

header {
  background: linear-gradient(135deg, #083932 0%, #0B4F45 50%, #0E5D51 100%);
  color: #fff;
  padding: 2.2rem 1.4rem 3.4rem;
  position: relative;
  overflow: hidden;
  border-bottom-left-radius: 24px;
  border-bottom-right-radius: 24px;
  box-shadow: 0 12px 30px -10px rgba(11, 79, 69, 0.4);
}

header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 85% 15%, rgba(221, 184, 84, 0.15) 0, transparent 40%),
    radial-gradient(circle at 10% 85%, rgba(127, 217, 196, 0.12) 0, transparent 45%);
  pointer-events: none;
}

.wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: 24px;
  display: block;
  filter: drop-shadow(0 -3px 8px rgba(94, 234, 212, 0.4));
  opacity: 0.9;
  transition: all 0.3s ease;
}

.wave path {
  fill: var(--bg);
}

.brandrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  position: relative;
  margin-bottom: 1.5rem;
}

.logomark {
  width: 46px;
  height: 46px;
  flex: none;
  border-radius: 50%;
  overflow: hidden;
  background-color: #ffffff;
}

.trust-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.7rem;
  margin: 0.9rem 0 0;
  padding: 0;
  position: relative;
}

.trust-badges li {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: #CFE6E0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  padding: 0.3rem 0.65rem;
}

.trust-badges svg {
  width: 12px;
  height: 12px;
  flex: none;
  color: #7FD9C4;
}

main {
  padding: 0 1.1rem;
}

footer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--ink-soft);
  padding: 1.6rem 1.25rem 0;
}

footer a {
  color: var(--accent-strong);
}

/* ==========================================================================
   تأثيرات البطاقات (Card Hover & Active )
   ========================================================================== */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.2rem;
  box-shadow: var(--shadow-card);
  position: relative;
  z-index: 2;
  will-change: transform;

  /* ضمان حدة النصوص بجميع المتصفحات والشاشات */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s ease,
              border-color 0.3s ease;
}

.card:first-of-type {
  margin-top: 1.4rem;
}

.card + .card {
  margin-top: 1.1rem;
}

/* تأثير الرفع عند التمرير (تمت إزالة scale لمنع الغباش وإصلاح التوقيت) */
.card:not(.no-hover):hover,
.card.is-visible:not(.no-hover):hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 30px -10px rgba(0, 0, 0, 0.18);
  border-color: rgba(14, 165, 233, 0.6);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s ease,
              border-color 0.3s ease;
}

/* تأثير الضغط السريع عند النقر */
.card:not(.no-hover):active,
.card.is-visible:not(.no-hover):active {
  transform: translateY(-2px);
  transition: transform 0.08s ease;
}
/* تخصيص كرت الخطوة الأولى بأعلى الصفحة */
main > .card:first-of-type {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.3rem;
  margin-top: 1.5rem;
  box-shadow: 0 16px 35px -12px rgba(11, 79, 69, 0.22);
}

main > .card:first-of-type::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--teal), var(--gold), transparent);
  border-radius: 3px;
  opacity: 0.85;
}

/* بطاقة قسم "عني" المحاذية */
.card#about {
  width: 95%;
  max-width: 608px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.1rem;
  padding-right: 1.1rem;
}
/* أيقونات العناوين داخل البطاقات */
h2 .icn {
  background: var(--teal-light);
  color: var(--accent-strong);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

h2 .icn svg {
  width: 18px;
  height: 18px;
}

h2 .icn-tip {
  background: var(--gold-light);
  color: var(--gold);
}


/* ==========================================================================
   6. FORMS & INPUTS — حقول الإدخال وصناديق عرض النتائج المتناسقة
   ========================================================================== */
label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 0.35rem;
}

/* 1. الحقول الافتراضية وصناديق النتائج والمقارنة (تنسيق موحد) */
input[type="number"],
#consumption,
#tankerQty,
#tankerPrice,
select,
.result,
.compare .box,
.result-card,
.result-box,
.result-item {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  font-family: 'Tajawal', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  background: var(--input-bg);
  color: var(--ink);
  box-sizing: border-box;
  transition: border-color var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}

/* حالة التركيز عند الكتابة والتأثير التفاعلي */
input[type="number"]:focus,
#consumption:focus,
#tankerQty:focus,
#tankerPrice:focus,
select:focus {
  outline: none;
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.2);
}

/* 2. تخصيص حقل الاستهلاك الرئيسي المميز (#consumption) */
#consumption {
  font-size: 1.35rem;
  font-weight: 700;
  text-align: center;
  padding: 0.75rem;
  border: 2px solid var(--border);
  background: var(--input-bg);
  transition: all var(--transition-base);
}

#consumption:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.22);
}

/* 3. نتائج الفاتورة (الخطوة 2) */
.result .line {
  display: flex;
  justify-content: space-between;
  font-size: 0.92rem;
  padding: 0.3rem 0;
  color: var(--ink-soft);
}

.result .total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1.5px dashed var(--border);
  margin-top: 0.6rem;
  padding-top: 0.75rem;
}

.result .total span:first-child {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-strong);
}

.result .total span:last-child {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--accent-strong);
  letter-spacing: -0.5px;
}

/* 4. صناديق المقارنة (الخطوة 3) */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1rem;
}

.compare .box {
  padding: 0.8rem;
  text-align: center;
  margin-top: 0;
}

.compare .box .lbl {
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.compare .box .val {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--accent-strong);
  margin-top: 0.3rem;
}

/* تمييز الخيار الأفضل باللون الذهبي/الأصفر كـ Win state */
.compare .box.win {
  border-color: var(--gold);
  background: var(--gold-light);
}

.compare .box.win .val {
  color: var(--gold-text);
}

.row {
  display: flex;
  gap: 0.7rem;
  margin-bottom: 0.8rem;
}

.row > div {
  flex: 1;
}

#flatFeeHint {
  display: none;
  font-size: 0.8em;
  opacity: 0.85;
  margin-right: 4px;
}
/* مسافة فاصلة مريحة بأسفل حقل الاستهلاك */
#consumption {
  margin-bottom: 1.2rem;
}

/* مسافة فاصلة بأعلى صندوق عرض النتائج */
.result,
.result-card,
.result-box {
  margin-top: 1.2rem;
}

/* ==========================================================================
   7. TABLES — جدول التعرفة
   ========================================================================== */
table.tariff {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 0.4rem;
}

table.tariff th {
  background: var(--teal-light);
  color: var(--accent-strong);
  font-weight: 700;
  padding: 0.45rem 0.3rem;
  text-align: center;
}

main > .card:first-of-type table.tariff {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

main > .card:first-of-type table.tariff th {
  font-weight: 800;
  padding: 0.6rem 0.4rem;
}

table.tariff td {
  padding: 0.3rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

table.tariff input {
  width: 64px;
  padding: 0.3rem;
  text-align: center;
  font-size: 0.85rem;
}

table.tariff input[readonly] {
  background: var(--readonly-bg);
  color: var(--ink-soft);
  cursor: not-allowed;
}


/* ==========================================================================
   8. BUTTONS & ACTIONS — الأزرار وأدوات التحكم
   ========================================================================== */
h2 .lockbtn {
  margin-inline-start: auto;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-soft);
  font-family: 'Tajawal', sans-serif;
  cursor: pointer;
  flex: none;
}

h2 .lockbtn:hover {
  background: var(--teal-light);
}

.lockbtn-icon {
  width: 13px;
  height: 13px;
  vertical-align: -2px;
  margin-inline-end: 4px;
}

/* زر تبديل السمة العلوي (Theme Toggle) */
.theme-toggle {
  margin-inline-start: auto;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: none;
  position: relative;
  z-index: 1;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.18);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

:root[data-theme="dark"] .theme-toggle .icon-sun,
body.dark-mode .theme-toggle .icon-sun { display: block; }

:root[data-theme="dark"] .theme-toggle .icon-moon,
body.dark-mode .theme-toggle .icon-moon { display: none; }

/* زر التبديل العائم الدائري */
.btn-theme-toggle {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #ffffff;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease-in-out;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: scale(1.08);
}

.btn-theme-toggle:active {
  transform: scale(0.92);
}

/* أزرار Ghost & Settings Actions */
.settings-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.8rem;
  font-family: 'Tajawal', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.ghost-btn:hover {
  background: var(--teal-light);
  border-color: var(--accent-strong);
  color: var(--accent-strong);
}

.sr-only-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* ==========================================================================
   9. PWA TOAST — إشعار تثبيت التطبيق 
   ========================================================================== */

#pwaToast.pwa-toast {
  position: fixed;
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  right: auto;
  width: calc(100% - 32px);
  max-width: 600px;
  box-sizing: border-box;

  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 14px;
  
  background: rgba(13, 148, 136, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  color: #ffffff;
  font-family: 'Tajawal', sans-serif;
  z-index: 9999;

  transform: translate(-50%, 120px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
}

#pwaToast.pwa-toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
  pointer-events: auto;
}

#pwaToast.pwa-toast span,
#pwaToast.pwa-toast p {
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.35;
  margin: 0;
}

#pwaToast.pwa-toast .pwa-toast-buttons,
#pwaToast.pwa-toast .pwa-toast-actions {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

#pwaToast.pwa-toast button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  font-family: 'Tajawal', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
}

#pwaToast.pwa-toast #pwaInstallBtn {
  background-color: #ffffff;
  color: #0d9488;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
}

#pwaToast.pwa-toast #pwaInstallBtn:hover {
  background-color: #f0fdf4;
}

#pwaToast.pwa-toast #pwaDismissBtn {
  background-color: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

#pwaToast.pwa-toast #pwaDismissBtn:hover {
  background-color: rgba(255, 255, 255, 0.28);
}


/* ==========================================================================
   10. SHARE & QR MODAL — زر وقائمة المشاركة ورمز الـ QR
   ========================================================================== */

/* الحاوية الرئيسية لزر المشاركة وشارة الـ QR */
.share-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.share-btn {
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--ink);
  background: var(--card);
  cursor: pointer;
  font-family: 'Tajawal', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.share-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.share-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent-strong);
  box-shadow: 0 5px 14px rgba(0, 0, 0, 0.12);
}

.share-fallback {
  position: fixed;
  width: min(220px, calc(100vw - 32px));
  max-height: min(280px, calc(100vh - 32px));
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;

  padding: 0.5rem;
  border: 1px solid var(--share-border);
  border-radius: 12px;
  background-color: var(--share-fallback-bg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);

  display: flex;
  flex-direction: column;
  gap: 4px;

  z-index: 9999;
  box-sizing: border-box;
}

.share-fallback[hidden] {
  display: none;
}

.share-option {
  width: 100%;
  min-height: 40px;
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 8px;

  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--share-option-color);
  background: transparent;

  font-family: 'Tajawal', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: right;
  text-decoration: none;
  cursor: pointer;
  box-sizing: border-box;
  -webkit-appearance: none;
  appearance: none;
  transition: background-color var(--transition-fast);
}

.share-option svg {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.share-option:hover,
.share-option:focus-visible {
  background-color: var(--share-option-hover);
}

.share-option .qr-menu-badge {
  margin-inline-start: auto;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  background: rgba(13, 148, 136, 0.12);
  color: #0d9488;
  border: 1px solid rgba(13, 148, 136, 0.25);
  white-space: nowrap;
}

:root[data-theme="dark"] .share-option .qr-menu-badge,
body.dark-mode .share-option .qr-menu-badge {
  background: rgba(94, 234, 212, 0.15);
  color: #5eead4;
  border-color: rgba(94, 234, 212, 0.3);
}

/* نافذة رمز QR */
.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}

.qr-modal[hidden] {
  display: none;
}

.qr-modal-content {
    position: relative;
    width: min(92vw, 430px); /* تم توسيع العرض من 360px إلى 430px لاستعادة الشكل المربع */
    padding: 22px 24px;
    border-radius: 18px;
    background: var(--qr-card-bg);
    color: var(--qr-text-color);
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-color: rgb(0 0 0 / 60%);
}

/* حاوية الـ QR - حفظ العرض الكامل وحجز مساحة الارتفاع لمنع القفزات والتداخل */
/* حاوية الـ QR - تضمن احتواء الصورة المكتملة بنسب الأبعاد الصحيحة دون أي بروز */
#qrContainer,
.qr-container {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 800 / 910;
  margin: 0 auto 1rem auto;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  overflow: hidden;
}

#qrContainer img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
  display: block;
}

button.close-qr {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  border: none;
  background: var(--close-qr-bg);
  color: var(--close-qr-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  z-index: 10;
}

button.close-qr:hover {
  background: var(--close-qr-hover-bg);
}

button.close-qr:active {
  transform: scale(0.92);
}

.qr-hint {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 0.8rem 0 1.2rem;
  line-height: 1.4;
}

/* إصلاح تنسيق زر تنزيل الـ QR بداخل النافذة المنبثقة */
.download-qr-btn {
  width: 100%;
  min-height: 42px;
  padding: 0.65rem 1rem;
  
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--teal-light);
  color: var(--accent-strong);
  
  font-family: 'Tajawal', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap; /* يمنع انقسام النص إلى سطرين */
  cursor: pointer;
  box-sizing: border-box;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.download-qr-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke: currentColor;
}

.download-qr-btn:hover {
  background: var(--accent-strong);
  color: #ffffff;
}
.mini-qr-badge {
  min-height: 44px;
  padding: 0.65rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--ink);
  background: var(--card);
  cursor: pointer;
  font-family: 'Tajawal', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.mini-qr-badge svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke: currentColor;
}

.mini-qr-badge:hover {
  transform: translateY(-2px);
  border-color: var(--accent-strong);
  box-shadow: 0 5px 14px rgba(0, 0, 0, 0.12);
}

.mini-qr-badge:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
}


/* ==========================================================================
   11. UTILITIES — الشارات والتلميحات والوصولية
   ========================================================================== */
.hint {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin: 0.5rem 0 0;
}

.hint-box {
  background: var(--teal-light);
  border-right: 3px solid var(--accent-strong);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  margin-top: 0.8rem;
  font-size: 0.85rem;
}

.hint-box strong {
  color: var(--accent-strong);
  display: block;
  margin-bottom: 0.2rem;
}

.hint-box p.hint {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.5;
}

.badge {
  display: inline-block;
  margin-top: 0.7rem;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  animation: badge-in var(--transition-base);
}

.badge.ok { background: var(--green-bg); color: var(--green-ink); }
.badge.warn { background: var(--amber-bg); color: var(--amber-ink); }
.badge.bad { background: var(--red-bg); color: var(--red-ink); }

/* الشارة الحرجة (فوق 50 م³) */
.badge.critical {
  background-color: #fff1f0;
  color: #cf1322;
  border: 1px solid #ffa39e;
  font-weight: bold;
  padding: 4px 12px;
  border-radius: 6px;
  animation: redGlowPulse 1.8s infinite alternate;
}

:root[data-theme="dark"] .badge.critical,
body.dark-mode .badge.critical {
  background-color: rgba(255, 77, 79, 0.15);
  color: #ff7875;
  border-color: #ff4d4f;
  animation: redGlowPulseDark 1.8s infinite alternate;
}

.warning-badge {
  display: none;
  margin-top: 10px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--warning-color);
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: 8px;
  text-align: right;
  line-height: 1.4;
}

ul.tips {
  margin: 0.4rem 0 0;
  padding-inline-start: 1.2rem;
  font-size: 0.9rem;
}

ul.tips li {
  margin-bottom: 0.55rem;
}

.footer-logo {
  margin-bottom: 0.6rem;
}

.skip-link {
  position: absolute;
  right: 1rem;
  top: -100px;
  background: var(--teal);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  z-index: 100;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

.app-version {
  font-size: 0.7rem;
  color: var(--ink-soft);
  opacity: 0.7;
  margin-top: 1rem;
}

/* ==========================================================================
   تنسيق التذييل المعتمد 100% على متغيّرات بطاقات المشروع الأصلية
   ========================================================================== */

footer.app-footer {
  padding: 32px 16px 24px;
  margin-top: 40px;
  border-top: 1px solid var(--border-color);
  background: transparent;
}

.footer-container {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.footer-logo {
  display: block;
  margin: 0 auto 16px auto;
}

/* بطاقة مطابقة تماماً لخلفية ونصوص كروت النتائج بالحاسبة */
.disclaimer-box {
  text-align: right;
  direction: rtl;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius, 16px);
  padding: 20px 22px;
  margin: 16px 0;
  box-shadow: var(--card-shadow, none);
}

.disclaimer-title {
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 0;
  margin-bottom: 14px;
}

.disclaimer-list {
  list-style-type: disc;
  padding-right: 20px;
  margin: 0;
}

.disclaimer-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 10px;
}

.disclaimer-list li strong {
  color: var(--text-main);
}

.copyright-text {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
  margin-bottom: 0;
}
/* ==========================================================================
   12. ANIMATIONS & RESPONSIVE — الحركات، الاستجابة، وتقليل الحركة
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), #7FD9C4);
  z-index: 200;
  transition: width 0.1s linear;
}

.fade-in.fade-init {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* التركيز بالواجهة (Accessibility Focus) */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

.share-btn:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
}

#importFile:focus-visible + label {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

/* Keyframes */
@keyframes badge-in {
  from { opacity: 0; transform: translateY(-3px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes box-win-pulse {
  0% { box-shadow: 0 0 0 0 rgba(185, 138, 31, 0.35); }
  100% { box-shadow: 0 0 0 8px rgba(185, 138, 31, 0); }
}

.compare .box.win {
  animation: box-win-pulse 0.6s ease-out;
}

@keyframes redGlowPulse {
  0% { box-shadow: 0 0 3px rgba(207, 19, 34, 0.2); border-color: #ffa39e; }
  100% { box-shadow: 0 0 12px rgba(207, 19, 34, 0.6); border-color: #ff4d4f; }
}

@keyframes redGlowPulseDark {
  0% { box-shadow: 0 0 6px rgba(255, 77, 79, 0.4); border-color: #ff4d4f; }
  100% { box-shadow: 0 0 20px rgba(255, 77, 79, 0.9), 0 0 30px rgba(255, 77, 79, 0.4); border-color: #ff7875; }
}

/* استجابة الشاشات الكبيرة */
@media (min-width: 720px) {
  .wrap { padding-top: 2rem; }
  header { border-radius: 20px; }
  .card { margin-top: 1.1rem; }
  .card:first-of-type { margin-top: 1.1rem; }
}

/* احترام تفضيل تقليل الحركة */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .share-btn { transition: none; }
  .share-btn:hover { transform: none; }
  .share-fallback.open-up { top: auto; bottom: calc(100% + 0.6rem); }
}