/* ==========================================================================
   نَبْض | NABD — Kinetic Interior Design
   ملف: /css/components.css
   عناصر واجهة المستخدم التفاعلية ومكونات Swiss Modern
   ========================================================================== */

/* ==========================================================================
   أ) المؤشر المخصص (Custom Cursor — مميز لنبض)
   ========================================================================== */

.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  will-change: transform;
  display: none;
}

/* يظهر حصرياً على أجهزة الديسكتوب بمؤشر دقيق */
@media (hover: hover) and (pointer: fine) {
  .cursor-dot,
  .cursor-ring {
    display: block;
  }
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background-color: var(--acid);
  transition: background-color var(--duration-cursor) var(--ease-out-expo);
}

.cursor-ring {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--jet);
  background-color: transparent;
  transition: background-color var(--duration-cursor) var(--ease-out-expo),
              border-color var(--duration-cursor) var(--ease-out-expo),
              width var(--duration-cursor) var(--ease-out-expo),
              height var(--duration-cursor) var(--ease-out-expo);
}

/* حالة التفاعل مع الروابط والأزرار */
body.cursor-hover .cursor-ring {
  width: 80px;
  height: 80px;
  background-color: var(--acid);
  border-color: var(--acid);
  mix-blend-mode: difference;
}

body.cursor-hover .cursor-dot {
  background-color: var(--jet);
}

/* حالة التفاعل مع الصور */
body.cursor-image .cursor-ring {
  width: 90px;
  height: 90px;
  background-color: transparent;
  border-color: var(--acid);
}

/* إخفاء المؤشر المخصص تماماً عند تفعيل تقليل الحركة */
@media (prefers-reduced-motion: reduce) {
  .cursor-dot,
  .cursor-ring {
    display: none !important;
  }
}

/* ==========================================================================
   ب) شريط التنقل الرئيسي وقائمة الجوال (Navigation)
   ========================================================================== */

.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  background-color: var(--bone);
  border-bottom: 2px solid transparent;
  z-index: 100;
  display: flex;
  align-items: center;
  transition: border-color var(--duration-hover) var(--ease-out-expo),
              background-color var(--duration-hover) var(--ease-out-expo);
}

.site-nav.is-scrolled {
  border-bottom-color: var(--border-strong);
}

.site-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-logo {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--fw-extrabold);
  font-variation-settings: "wght" 800;
  color: var(--jet);
  line-height: 1;
}

.site-logo .logo-latin {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.2em;
  color: var(--acid);
}

.site-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.site-link {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: var(--fw-medium);
  color: var(--jet);
  position: relative;
  padding-block: 0.35rem;
  transition: color var(--duration-hover) var(--ease-out-expo);
}

.site-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 2px;
  background-color: var(--acid);
  transition: width var(--duration-hover) var(--ease-out-expo);
}

.site-link:hover::after,
.site-link.is-active::after {
  width: 100%;
}

.site-link.is-active {
  color: var(--acid);
}

.site-cta {
  font-family: var(--font-latin);
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--jet);
  background-color: var(--acid);
  border: 2px solid var(--jet);
  padding: 0.625rem 1.5rem;
  transition: all var(--duration-hover) var(--ease-out-expo);
}

.site-cta:hover {
  background-color: var(--jet);
  color: var(--acid);
  transform: translate(-3px, -3px);
  box-shadow: 6px 6px 0 var(--jet);
}

/* زر وقائمة الهواتف المحمولة */
.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  position: relative;
  z-index: 105;
}

.mobile-toggle-line {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background-color: var(--jet);
  transition: transform var(--duration-hover) var(--ease-out-expo),
              top var(--duration-hover) var(--ease-out-expo);
}

.mobile-toggle-line:first-child {
  top: 16px;
}

.mobile-toggle-line:last-child {
  top: 26px;
}

.mobile-toggle.is-open .mobile-toggle-line:first-child {
  top: 21px;
  transform: rotate(45deg);
}

.mobile-toggle.is-open .mobile-toggle-line:last-child {
  top: 21px;
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  top: var(--header-height);
  background-color: var(--bone);
  z-index: 99;
  display: none;
  flex-direction: column;
  padding: clamp(2rem, 5vw, 3rem);
  border-top: 2px solid var(--border-strong);
  overflow-y: auto;
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-menu-link {
  display: block;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--border-thin);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  font-variation-settings: "wght" 700;
  color: var(--jet);
  transition: color var(--duration-hover) var(--ease-out-expo),
              padding-right var(--duration-hover) var(--ease-out-expo);
}

.mobile-menu-link:hover,
.mobile-menu-link.is-active {
  color: var(--acid);
  padding-right: var(--space-md);
}

.mobile-menu-cta {
  margin-top: 2rem;
  text-align: center;
}

@media (max-width: 900px) {
  .site-links,
  .site-cta {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}

/* ==========================================================================
   ج) الأزرار (Buttons & Magnetic Interaction)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-latin);
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 2px solid var(--jet);
  background-color: transparent;
  color: var(--jet);
  position: relative;
  cursor: pointer;
  transition: all var(--duration-hover) var(--ease-out-expo);
}

/* الزر الأساسي — أصفر (Brutalist Offset Shadow) */
.btn-primary {
  background-color: var(--acid);
  color: var(--jet);
}

.btn-primary:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--jet);
}

/* الزر الفحمي */
.btn-secondary {
  background-color: var(--jet);
  color: var(--bone);
  border-color: var(--jet);
}

.btn-secondary:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--acid);
}

/* الزر المفرغ */
.btn-outline {
  background-color: transparent;
  color: var(--jet);
}

.btn-outline:hover {
  background-color: var(--jet);
  color: var(--bone);
}

.btn-large {
  padding: 1.125rem 2.5rem;
  font-size: 0.875rem;
}

/* الزر المغناطيسي — تحريك سلس مع الماوس */
.magnetic {
  transition: transform 400ms var(--ease-out-expo);
}

/* ==========================================================================
   د) البطاقات (Cards)
   ========================================================================== */

.editorial-card {
  background-color: transparent;
  border-top: 2px solid var(--border-strong);
  padding-top: var(--space-md);
  transition: border-color var(--duration-hover) var(--ease-out-expo);
}

.editorial-card:hover {
  border-top-color: var(--acid);
}

.editorial-card-num {
  font-family: var(--font-numeric);
  font-size: 2.5rem;
  font-weight: var(--fw-bold);
  line-height: 1;
  color: var(--acid);
  display: block;
  margin-bottom: var(--space-xs);
}

.editorial-card-title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: var(--fw-bold);
  font-variation-settings: "wght" 700;
  color: var(--jet);
  margin-bottom: var(--space-xs);
}

.editorial-card-desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--ink);
  line-height: var(--lh-body);
}

/* بطاقة المشروع */
.project-card {
  display: block;
  position: relative;
  overflow: hidden;
  border: 2px solid var(--jet);
  background-color: var(--bone);
}

.project-card-media {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  position: relative;
  width: 100%;
}

.project-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: var(--image-filter);
  transition: transform 700ms var(--ease-out-expo);
}

.project-card:hover .project-card-img {
  transform: scale(1.05);
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.85) 0%, transparent 65%);
  pointer-events: none;
}

.project-card-content {
  position: absolute;
  bottom: 0;
  right: 0;
  left: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  color: var(--bone);
  z-index: 2;
}

.project-card-category {
  font-family: var(--font-subheading);
  font-size: 0.75rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0;
  text-transform: none;
  color: var(--acid);
  display: block;
  margin-bottom: 0.25rem;
}

.project-card-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  font-variation-settings: "wght" 700;
  line-height: 1.15;
  color: var(--bone);
}

/* عضو الفريق */
.team-member {
  text-align: center;
}

.team-member img {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  margin-inline: auto;
  filter: grayscale(0.3) var(--image-filter);
  transition: filter 400ms var(--ease-out-expo);
  border: 2px solid var(--jet);
}

.team-member:hover img {
  filter: grayscale(0) var(--image-filter);
}

.team-member-name {
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  margin-top: var(--space-sm);
  color: var(--jet);
}

.team-member-role {
  font-family: var(--font-latin);
  font-size: var(--fs-label);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--graphite);
  margin-top: var(--space-xs);
  display: block;
}

/* بطاقة المدونة */
.journal-card {
  display: block;
  padding-block: var(--space-lg);
}

.journal-card-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: var(--space-md);
  border: 2px solid var(--jet);
}

.journal-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: var(--image-filter);
  transition: transform 700ms var(--ease-out-expo);
}

.journal-card:hover .journal-card-media img {
  transform: scale(1.05);
}

.journal-card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-subsection);
  font-weight: var(--fw-bold);
  margin-block: var(--space-xs);
  color: var(--jet);
}

.journal-card-excerpt {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  color: var(--ink);
  line-height: var(--lh-body);
}

.journal-card-meta {
  font-family: var(--font-latin);
  font-size: var(--fs-label);
  letter-spacing: 0.1em;
  color: var(--graphite);
  display: block;
  margin-top: var(--space-sm);
}

/* ==========================================================================
   هـ) شريط التصفية (Filter Bar)
   ========================================================================== */

.filter-bar {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  flex-wrap: wrap;
  padding-block: 1.5rem;
  border-block: 2px solid var(--border-strong);
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.filter-btn {
  font-family: var(--font-latin);
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--graphite);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-hover) var(--ease-out-expo);
}

.filter-btn:hover {
  color: var(--jet);
  border-color: var(--border-strong);
}

.filter-btn.is-active {
  color: var(--jet);
  background-color: var(--acid);
  border-color: var(--jet);
}

.filter-count {
  margin-inline-start: auto;
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  color: var(--graphite);
}

/* ==========================================================================
   و) عارض الصور المكبر (Lightbox)
   ========================================================================== */

.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 10, 10, 0.96);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 350ms var(--ease-out-expo);
  padding: 2rem;
}

.lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  left: 2rem;
  width: 48px;
  height: 48px;
  border: 2px solid var(--acid);
  color: var(--acid);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: var(--font-latin);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  transition: all var(--duration-hover) var(--ease-out-expo);
}

.lightbox-close:hover {
  background-color: var(--acid);
  color: var(--jet);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border: 2px solid var(--acid);
  color: var(--acid);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.5rem;
  transition: all var(--duration-hover) var(--ease-out-expo);
}

.lightbox-nav:hover {
  background-color: var(--acid);
  color: var(--jet);
}

.lightbox-prev {
  right: 2rem;
}

.lightbox-next {
  left: 2rem;
}

@media (max-width: 600px) {
  .lightbox-close {
    top: 1rem;
    left: 1rem;
  }
  .lightbox-prev {
    right: 0.5rem;
  }
  .lightbox-next {
    left: 0.5rem;
  }
}

/* ==========================================================================
   ز) منزلق المقارنة التفاعلي قبل/بعد (Split Slider)
   ========================================================================== */

.split-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  cursor: ew-resize;
  user-select: none;
  border: 2px solid var(--jet);
  background-color: var(--bone);
}

.split-slider-before,
.split-slider-after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.split-slider-after {
  clip-path: inset(0 0 0 50%);
}

.split-slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.split-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 50%;
  width: 3px;
  background-color: var(--acid);
  transform: translateX(50%);
  cursor: ew-resize;
  z-index: 5;
}

.split-slider-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--acid);
  border: 3px solid var(--jet);
}

.split-slider-label {
  position: absolute;
  bottom: 1.5rem;
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bone);
  background-color: var(--jet);
  padding: 0.5rem 1rem;
  border: 2px solid var(--acid);
  z-index: 4;
}

.split-slider-label-before {
  right: 1.5rem;
}

.split-slider-label-after {
  left: 1.5rem;
}

/* ==========================================================================
   ح) القوائم القابلة للطي (Accordion)
   ========================================================================== */

.accordion-item {
  border-bottom: 2px solid var(--border-thin);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: var(--fw-bold);
  font-variation-settings: "wght" 700;
  background: transparent;
  color: var(--jet);
  text-align: right;
  cursor: pointer;
  transition: color var(--duration-hover) var(--ease-out-expo);
}

.accordion-trigger:hover {
  color: var(--acid);
}

.accordion-icon {
  font-family: var(--font-latin);
  font-size: 1.75rem;
  color: var(--acid);
  transition: transform 400ms var(--ease-out-expo);
  display: inline-block;
  line-height: 1;
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 400ms var(--ease-out-expo);
}

.accordion-item.is-open .accordion-content {
  grid-template-rows: 1fr;
}

.accordion-content > div {
  overflow: hidden;
}

.accordion-body {
  padding-bottom: 1.5rem;
  color: var(--ink);
  line-height: var(--lh-body);
  font-family: var(--font-body);
}

/* ==========================================================================
   ط) النماذج وحقول الإدخال (Forms)
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-lg);
  position: relative;
}

.form-label {
  display: block;
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--graphite);
  margin-bottom: 0.75rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding-block: 0.875rem;
  background-color: transparent;
  border: 0;
  border-bottom: 2px solid var(--border-thin);
  color: var(--jet);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--duration-hover) var(--ease-out-expo);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-bottom-color: var(--acid);
  outline: none;
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-feedback {
  margin-top: 1.5rem;
  padding: 1rem;
  border: 2px solid var(--border-thin);
  display: none;
  font-family: var(--font-body);
  font-size: 0.9375rem;
}

.form-feedback:not(:empty) {
  display: block;
}

.form-feedback.is-success {
  border-color: var(--acid);
  background-color: var(--acid);
  color: var(--jet);
}

.form-error {
  color: var(--pulse);
  font-family: var(--font-latin);
  font-size: 0.75rem;
  margin-top: 0.4rem;
  display: block;
}

/* ==========================================================================
   ي) حاسبة التكلفة التقديرية (Cost Estimator)
   ========================================================================== */

.cost-estimator {
  border-top: 2px solid var(--border-strong);
  padding-top: var(--space-xl);
}

.estimator-field {
  margin-bottom: var(--space-lg);
}

.estimator-field label {
  display: block;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  margin-bottom: 0.5rem;
  color: var(--jet);
}

.estimator-field input[type="range"] {
  width: 100%;
  accent-color: var(--acid);
  cursor: pointer;
  height: 4px;
}

.estimator-range-display {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xs);
  font-family: var(--font-latin);
  font-size: 0.875rem;
  color: var(--graphite);
}

.estimator-result {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 2px solid var(--border-strong);
}

.estimator-total {
  font-family: var(--font-numeric);
  font-size: var(--fs-display);
  font-weight: var(--fw-bold);
  color: var(--acid);
  line-height: 0.9;
  direction: ltr;
}

.estimator-duration {
  font-family: var(--font-latin);
  font-size: 0.875rem;
  color: var(--graphite);
  margin-top: var(--space-xs);
}

/* ==========================================================================
   ك) التذييل وأشرطة الماركي (Footer & Marquee)
   ========================================================================== */

.site-footer {
  background-color: var(--jet);
  color: var(--bone);
  padding-block: clamp(4rem, 8vw, 6rem);
  position: relative;
  overflow: hidden;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
}

.footer-col h4 {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--acid);
  margin-bottom: 1.25rem;
}

.footer-col a,
.footer-col p {
  color: rgba(240, 235, 224, 0.75);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  margin-bottom: 0.5rem;
  display: block;
  transition: color var(--duration-hover) var(--ease-out-expo);
}

.footer-col a:hover {
  color: var(--acid);
}

/* شريط الماركي الحركي */
.marquee {
  padding-block: var(--space-md);
  border-block: 2px solid var(--border-bone);
  margin-block: var(--space-xl);
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: inline-block;
  animation: marqueeH 40s linear infinite;
}

.marquee-inner {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: var(--fw-bold);
  font-variation-settings: "wght" 700;
  color: rgba(240, 235, 224, 0.5);
  line-height: 1;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes marqueeH {
  0% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* العلامة المائية الضخمة */
.footer-watermark {
  font-family: var(--font-latin);
  font-size: clamp(6rem, 18vw, 16rem);
  font-weight: var(--fw-bold);
  color: var(--acid);
  opacity: 0.05;
  text-align: center;
  line-height: 0.8;
  user-select: none;
  pointer-events: none;
  margin-block: var(--space-md);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-lg);
  border-top: 2px solid var(--border-bone);
  font-family: var(--font-latin);
  font-size: 0.75rem;
  color: var(--smoke);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* ==========================================================================
   ل) عناصر تحريرية إضافية (Divider)
   ========================================================================== */

.divider {
  width: 80px;
  height: 3px;
  background-color: var(--acid);
  margin-block: 2rem;
}