:root {
    --bg: #070b19;
    --surface: #0d1429;
    --surface-light: #121d38;
    --border: rgba(148, 163, 255, 0.15);
    --text: #f3f3ff;
    --muted: #929dbd;
    --purple: #a78bfa;
    --pink: #ed9bdc;
    --blue: #78b8ff;
    --gold: #f5c879;
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
    scroll-padding-top: 95px;
  }
  
  body {
    background: var(--bg);
    color: var(--text);
    font-family: "Cairo", sans-serif;
    font-size: 14px;
    line-height: 1.8;
    min-height: 100vh;
    direction: rtl;
    text-align: right;
    transition: background .3s, color .3s;
  }
  
  button,
  a {
    font: inherit;
  }
  
  button {
    cursor: pointer;
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  .app {
    max-width: 1440px;
    margin: auto;
    padding: 0 5%;
  }
  
  /* شريط التنقل */
  
  .topbar {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-bottom: 1px solid var(--border);
  }
  
  .brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: -.8px;
    white-space: nowrap;
  }
  
  .brand-icon {
    color: var(--purple);
    font-size: 34px;
    text-shadow: 0 0 20px var(--purple);
  }
  
  .brand-dot {
    color: var(--pink);
  }
  
  .top-nav {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .nav-link {
    color: var(--muted);
    padding: 10px 14px;
    border-radius: 10px;
    transition: .25s;
  }
  
  .nav-link:hover,
  .nav-link.active {
    background: rgba(167, 139, 250, .12);
    color: var(--text);
  }
  
  .theme-btn {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: var(--surface);
    color: var(--purple);
    font-size: 23px;
    flex-shrink: 0;
  }
  
  /* الواجهة الرئيسية */
  
  .hero {
    margin-top: 32px;
    min-height: 390px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 25px;
    background:
      radial-gradient(ellipse at 0% 100%, #25205a 0%, transparent 52%),
      linear-gradient(130deg, #101832, #10152b 65%, #251c48);
  }
  
  .hero-content {
    padding: 48px 42px 36px 10px;
    align-self: center;
    position: relative;
    z-index: 2;
  }
  
  .eyebrow {
    color: var(--purple);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1px;
  }
  
  .hero h1 {
    font-size: clamp(36px, 4.2vw, 58px);
    letter-spacing: -1.5px;
    line-height: 1.35;
    margin: 17px 0;
  }
  
  .hero h1 span {
    color: var(--purple);
  }
  
  .hero-content > p {
    color: var(--muted);
    max-width: 370px;
    line-height: 2;
    margin-bottom: 25px;
  }
  
  .primary-btn {
    display: inline-flex;
    align-items: center;
    gap: 25px;
    padding: 13px 20px;
    border-radius: 12px;
    background: linear-gradient(120deg, #8b5cf6, #b78af9);
    color: white;
    font-weight: 700;
    box-shadow: 0 8px 30px rgba(139, 92, 246, .25);
    transition: transform .25s, box-shadow .25s;
  }
  
  .primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(139, 92, 246, .4);
  }
  
  .hero-stats {
    display: flex;
    gap: 27px;
    margin-top: 32px;
  }
  
  .hero-stats div {
    display: grid;
    gap: 2px;
  }
  
  .hero-stats strong {
    font-size: 18px;
  }
  
  .hero-stats span {
    font-size: 10px;
    color: var(--muted);
  }
  
  /* الخلفية الخيالية */
  
  .hero-art {
    min-height: 390px;
    position: relative;
    overflow: hidden;
    background:
      radial-gradient(ellipse at 70% 35%, rgba(222, 142, 221, .26), transparent 35%),
      radial-gradient(ellipse at 55% 90%, #40306f, transparent 55%),
      linear-gradient(160deg, #141a38, #28234e 58%, #101b37);
  }
  
  .hero-art::before {
    content: "";
    position: absolute;
    width: 170px;
    height: 170px;
    border-radius: 50%;
    top: 52px;
    right: 22%;
    background: radial-gradient(circle at 35% 30%, #fff0e5, #e9b5f6 25%, #aa8cf7 58%, transparent 72%);
    box-shadow: 0 0 55px rgba(201, 155, 255, .35);
  }
  
  .hero-art::after {
    content: "✦   ·   ✧   ·   ✦   ·   ✧";
    position: absolute;
    inset: 18px 10px auto auto;
    color: #e4d5ff;
    font-size: 20px;
    letter-spacing: 7px;
    opacity: .8;
  }
  
  .orbit {
    position: absolute;
    border: 1px solid rgba(218, 196, 255, .25);
    border-radius: 50%;
    top: 95px;
    right: 7%;
    width: 340px;
    height: 110px;
    transform: rotate(-25deg);
  }
  
  .orbit-two {
    transform: rotate(40deg);
    width: 290px;
    right: 14%;
  }
  
  .planet {
    position: absolute;
    top: 95px;
    right: 34%;
    font-size: 30px;
    color: #fff0b5;
    text-shadow: 0 0 24px #d9a5ff;
    animation: float 4s ease-in-out infinite;
  }
  
  .moon {
    position: absolute;
    right: 13%;
    top: 28px;
    font-size: 40px;
    color: #fff0c9;
  }
  
  .floating-star {
    position: absolute;
    color: white;
    text-shadow: 0 0 18px var(--purple);
    animation: twinkle 2.5s ease-in-out infinite alternate;
  }
  
  .star-one {
    top: 30%;
    left: 13%;
    font-size: 25px;
  }
  
  .star-two {
    top: 53%;
    right: 12%;
    font-size: 28px;
  }
  
  .star-three {
    top: 17%;
    left: 42%;
    font-size: 17px;
  }
  
  .mountains {
    position: absolute;
    bottom: 0;
    width: 0;
    height: 0;
    border-left: 210px solid transparent;
    border-right: 210px solid transparent;
  }
  
  .mountain-back {
    right: -20px;
    border-bottom: 180px solid #29274f;
  }
  
  .mountain-front {
    left: -50px;
    border-bottom: 110px solid #111a36;
    border-left-width: 240px;
    border-right-width: 180px;
  }
  
  .art-label {
    position: absolute;
    bottom: 22px;
    right: 24px;
    display: grid;
    gap: 5px;
    text-align: right;
    z-index: 2;
  }
  
  .art-label span {
    font-size: 9px;
    letter-spacing: 1px;
    color: #d3b5ff;
  }
  
  .art-label strong {
    font-size: 15px;
  }
  
  /* الترحيب والمستوى */
  
  .welcome-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 25px;
    margin: 42px 0 25px;
  }
  
  .welcome-row h2,
  .section-heading h2 {
    font-size: 25px;
    letter-spacing: -.5px;
    margin: 6px 0;
    line-height: 1.7;
  }
  
  .welcome-row p,
  .section-heading p {
    color: var(--muted);
    font-size: 12px;
  }
  
  .wave,
  .heading-star {
    color: var(--purple);
  }
  
  .level-card {
    width: 265px;
    flex-shrink: 0;
    padding: 17px;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 15px;
  }
  
  .level-top,
  .progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
  }
  
  .level-top span,
  .progress-label {
    font-size: 10px;
    color: var(--muted);
  }
  
  .level-top strong {
    color: var(--purple);
  }
  
  .progress-track {
    height: 7px;
    border-radius: 20px;
    background: #222b49;
    margin: 12px 0 8px;
    overflow: hidden;
  }
  
  .progress-fill {
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #8b5cf6, #ed9bdc);
    transition: width .4s ease;
  }
  
  /* الإحصائيات */
  
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 17px;
  }
  
  .stat-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 17px;
    transition: transform .25s, border-color .25s;
  }
  
  .stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(167, 139, 250, .5);
  }
  
  .stat-icon {
    width: 47px;
    height: 47px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    border-radius: 14px;
    font-size: 25px;
  }
  
  .purple {
    background: #29204b;
    color: #c2a6ff;
  }
  
  .pink {
    background: #42213f;
    color: #f2a8df;
  }
  
  .gold {
    background: #403224;
    color: #f5c879;
  }
  
  .stat-card div {
    display: grid;
    gap: 2px;
    min-width: 0;
  }
  
  .stat-card div > span,
  .stat-card small {
    font-size: 10px;
    color: var(--muted);
  }
  
  .stat-card strong {
    font-size: 22px;
  }
  
  /* المهام والفلاتر */
  
  .quests-section {
    margin-top: 53px;
  }
  
  .section-heading {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 15px;
  }
  
  .quest-counter {
    color: var(--purple);
    background: rgba(167, 139, 250, .1);
    border: 1px solid var(--border);
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 11px;
    white-space: nowrap;
  }
  
  .filters {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 23px 0;
  }
  
  .filter {
    padding: 8px 14px;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 9px;
    font-size: 11px;
    transition: .2s;
  }
  
  .filter:hover,
  .filter.active {
    color: white;
    border-color: transparent;
    background: linear-gradient(120deg, #7853d8, #a678ec);
  }
  
  .quest-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  
  .quest-card {
    position: relative;
    padding: 21px;
    background: linear-gradient(145deg, var(--surface-light), var(--surface));
    border: 1px solid var(--border);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    min-height: 235px;
    transition: transform .25s, border-color .25s;
    animation: appear .35s ease both;
  }
  
  .quest-card:hover {
    transform: translateY(-5px);
    border-color: rgba(167, 139, 250, .55);
  }
  
  .quest-top {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
  }
  
  .quest-icon {
    width: 49px;
    height: 49px;
    display: grid;
    place-items: center;
    font-size: 25px;
    border-radius: 14px;
    border: 1px solid var(--border);
  }
  
  .quest-tag {
    padding: 5px 9px;
    border-radius: 7px;
    font-size: 9px;
    font-weight: 700;
  }
  
  .tag-learning {
    background: #302354;
    color: #c8b3ff;
  }
  
  .tag-coding {
    background: #19355b;
    color: #9dcaff;
  }
  
  .tag-wellness {
    background: #183c37;
    color: #8de5c7;
  }
  
  .tag-creativity {
    background: #472b3d;
    color: #ffb8df;
  }
  
  .quest-card h3 {
    font-size: 15px;
    margin-top: 18px;
  }
  
  .quest-card p {
    color: var(--muted);
    font-size: 11px;
    line-height: 2;
    margin-top: 6px;
    flex-grow: 1;
  }
  
  .quest-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
  }
  
  .xp-reward {
    font-size: 11px;
    color: var(--gold);
    font-weight: 700;
    white-space: nowrap;
  }
  
  .quest-btn {
    padding: 8px 12px;
    min-width: 82px;
    border-radius: 9px;
    border: 1px solid rgba(167, 139, 250, .4);
    background: rgba(167, 139, 250, .12);
    color: #cbb7ff;
    font-size: 10px;
    font-weight: 700;
    transition: .2s;
  }
  
  .quest-btn:hover:not(:disabled) {
    background: #8b5cf6;
    color: white;
  }
  
  .quest-btn.completed {
    color: #8de5c7;
    background: rgba(45, 180, 140, .12);
    border-color: rgba(45, 180, 140, .3);
    cursor: default;
  }
  
  .quest-card.is-complete {
    border-color: rgba(45, 180, 140, .3);
  }
  
  /* الإنجازات والعبارات */
  
  .bottom-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 17px;
    margin-top: 30px;
  }
  
  .panel {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
  }
  
  .panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .panel-heading h2 {
    font-size: 17px;
    margin-top: 6px;
  }
  
  .trophy {
    font-size: 26px;
    color: var(--gold);
  }
  
  .badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
  }
  
  .empty-badges {
    color: var(--muted);
    font-size: 11px;
  }
  
  .achievement {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 11px;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 12px;
  }
  
  .achievement-icon {
    font-size: 22px;
  }
  
  .achievement div {
    display: grid;
  }
  
  .achievement strong {
    font-size: 10px;
  }
  
  .achievement small {
    color: var(--muted);
    font-size: 9px;
  }
  
  .quote-panel {
    position: relative;
    overflow: hidden;
    background:
      radial-gradient(ellipse at 100% 0%, #302354, transparent 65%),
      var(--surface);
  }
  
  .quote-mark {
    font-size: 48px;
    color: var(--purple);
    line-height: 1;
  }
  
  .quote-panel > p {
    font-size: 17px;
    line-height: 2;
    max-width: 330px;
    margin: 4px 0 18px;
  }
  
  .quote-caption {
    font-size: 9px;
    color: var(--purple);
    letter-spacing: .5px;
  }
  
  .quote-decoration {
    text-align: left;
    color: var(--pink);
    font-size: 21px;
    margin-top: 12px;
  }
  
  /* نهاية الصفحة */
  
  footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 35px 0;
    color: var(--muted);
    font-size: 10px;
  }
  
  footer .brand-icon {
    font-size: 22px;
  }
  
  footer > span:last-child {
    color: var(--purple);
    letter-spacing: .5px;
  }
  
  /* رسائل التفاعل */
  
  .toast {
    position: fixed;
    bottom: 25px;
    left: 50%;
    transform: translate(-50%, 20px);
    background: #1a2340;
    color: white;
    border: 1px solid var(--border);
    padding: 13px 20px;
    border-radius: 13px;
    box-shadow: 0 10px 40px #0005;
    opacity: 0;
    pointer-events: none;
    transition: .3s;
    z-index: 10;
    text-align: center;
    width: max-content;
    max-width: 90%;
  }
  
  .toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  
  /* الحركات */
  
  @keyframes float {
    0%, 100% {
      transform: translateY(0);
    }
  
    50% {
      transform: translateY(-13px);
    }
  }
  
  @keyframes twinkle {
    from {
      opacity: .45;
      transform: scale(.85);
    }
  
    to {
      opacity: 1;
      transform: scale(1.15);
    }
  }
  
  @keyframes appear {
    from {
      opacity: 0;
      transform: translateY(8px);
    }
  
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* المظهر الفاتح */
  
  body.light {
    --bg: #f4f2fc;
    --surface: #ffffff;
    --surface-light: #f4f0ff;
    --border: rgba(93, 75, 145, .17);
    --text: #211b3b;
    --muted: #716b8a;
  }
  
  body.light .hero {
    background: linear-gradient(125deg, #e8e2ff, #f6e8f6);
  }
  
  body.light .hero-art {
    background: linear-gradient(160deg, #d9d4ff, #b9a6eb 58%, #8f9bda);
  }
  
  body.light .mountain-back {
    border-bottom-color: #8d83bd;
  }
  
  body.light .mountain-front {
    border-bottom-color: #555b91;
  }
  
  body.light .quest-card {
    background: linear-gradient(145deg, #fff, #f4f0ff);
  }
  
  body.light .progress-track {
    background: #e4def6;
  }
  
  body.light .filter.active {
    color: white;
  }
  
  body.light .achievement {
    background: #f4f0ff;
  }
  
  /* الشاشات المتوسطة */
  
  @media (min-width: 1200px) {
    .app {
      padding: 0 5.5%;
    }
  }
  
  @media (max-width: 900px) {
    .app {
      padding: 0 3%;
    }
  
    .hero-content {
      padding-right: 25px;
    }
  
    .hero-art,
    .hero {
      min-height: 350px;
    }
  
    .quest-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  
    .stat-card {
      padding: 14px;
      gap: 10px;
    }
  
    .stat-card small {
      display: none;
    }
  }
  
  /* الموبايل */
  
  @media (max-width: 600px) {
    .topbar {
      min-height: 70px;
      gap: 8px;
      flex-wrap: wrap;
      padding: 10px 0;
    }
  
    .brand {
      font-size: 15px;
      gap: 5px;
    }
  
    .brand-icon {
      font-size: 27px;
    }
  
    .top-nav {
      gap: 1px;
    }
  
    .nav-link {
      padding: 8px 6px;
      font-size: 10px;
    }
  
    .theme-btn {
      width: 34px;
      height: 34px;
      font-size: 18px;
    }
  
    .hero {
      grid-template-columns: 1fr;
    }
  
    .hero-content {
      padding: 35px 24px;
    }
  
    .hero h1 {
      font-size: 40px;
    }
  
    .hero-art {
      min-height: 240px;
    }
  
    .hero-art::before {
      width: 125px;
      height: 125px;
    }
  
    .orbit {
      transform: scale(.75) rotate(-25deg);
      transform-origin: center;
    }
  
    .welcome-row {
      align-items: stretch;
      flex-direction: column;
      margin-top: 30px;
    }
  
    .level-card {
      width: 100%;
    }
  
    .stats-grid {
      grid-template-columns: 1fr;
      gap: 10px;
    }
  
    .stat-card {
      padding: 14px;
    }
  
    .stat-card small {
      display: block;
    }
  
    .section-heading {
      align-items: start;
      flex-direction: column;
    }
  
    .quest-grid {
      grid-template-columns: 1fr;
    }
  
    .quest-card {
      min-height: 220px;
    }
  
    .bottom-grid {
      grid-template-columns: 1fr;
    }
  
    .panel {
      padding: 20px;
    }
  
    footer {
      gap: 8px;
    }
  }