*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--black:#1a1a1a;--red:#CC0000;--gold:#FFCE00;--white:#FAFAF8;--gray1:#F2F1EE;--gray2:#E0DFDA;--gray3:#9E9D97;--text:#1a1a1a;--text2:#5a5956;--radius:12px}
body{font-family:'Noto Sans Arabic','Inter',sans-serif;background:var(--white);color:var(--text);min-height:100vh}
.page{display:none}
.page.active{display:block}
nav{position:sticky;top:0;z-index:100;background:var(--black);display:flex;align-items:center;justify-content:space-between;padding:0 32px;height:60px;border-bottom:3px solid var(--gold)}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;cursor:pointer;background:none;border:none}
.nav-logo-img{height:36px;width:36px;object-fit:contain;border-radius:8px}
.flag-strip{display:flex;flex-direction:column;gap:2px;width:28px}
.flag-strip span{display:block;height:6px;border-radius:1px}
.flag-strip span:nth-child(1){background:#1a1a1a;border:1px solid #444}
.flag-strip span:nth-child(2){background:var(--red)}
.flag-strip span:nth-child(3){background:var(--gold)}
.nav-logo-text{color:#fff;font-size:15px;font-weight:600}
.nav-logo-text em{color:var(--gold);font-style:normal}
.nav-links{display:flex;gap:4px}
.nav-links button{color:#ccc;text-decoration:none;font-size:13px;padding:6px 14px;border-radius:6px;transition:all .15s;background:none;border:none;cursor:pointer;font-family:inherit}
.nav-links button:hover{background:#333;color:#fff}
.nav-links button.active{background:var(--red);color:#fff}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;background:none;border:none;cursor:pointer;padding:0}
.nav-burger span{display:block;height:2.5px;width:100%;background:#fff;border-radius:2px;transition:transform .2s,opacity .2s}
.nav-burger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:150}
.nav-overlay.open{display:block}
body.no-scroll{overflow:hidden}
.hero{background:linear-gradient(180deg,rgba(0,0,0,.55),rgba(0,0,0,.85)),var(--black) url('../assets/hero.jpg') center/cover no-repeat;padding:80px 32px 100px;text-align:center;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#1a1a1a 33%,var(--red) 33% 66%,var(--gold) 66%)}
.hero-de{font-family:'UnifrakturMaguntia',serif;font-size:clamp(48px,8vw,90px);color:var(--gold);line-height:1;margin-bottom:16px;text-shadow:0 2px 20px rgba(255,206,0,0.2)}
.hero-ar{font-size:clamp(18px,3vw,26px);color:#fff;font-weight:400;margin-bottom:8px}
.hero-sub{color:var(--gray3);font-size:14px;margin-bottom:40px}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-bottom:40px}
.hero-stat{text-align:center}
.hero-stat strong{display:block;font-size:28px;font-weight:700;color:var(--gold)}
.hero-stat span{font-size:12px;color:var(--gray3)}
.hero-btns{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.btn-primary{background:var(--red);color:#fff;border:none;padding:14px 32px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .15s}
.btn-primary:hover{background:#aa0000;transform:translateY(-1px)}
.btn-secondary{background:transparent;color:var(--gold);border:1px solid var(--gold);padding:14px 32px;border-radius:8px;font-size:15px;font-weight:500;cursor:pointer;font-family:inherit;transition:all .15s}
.btn-secondary:hover{background:rgba(255,206,0,0.08)}
.features{background:var(--gray1);border-top:1px solid var(--gray2);border-bottom:1px solid var(--gray2);padding:32px}
.features-grid{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.feature{display:flex;align-items:flex-start;gap:12px}
.feature-icon{width:40px;height:40px;border-radius:10px;background:var(--black);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.feature-text h4{font-size:14px;font-weight:600;margin-bottom:4px}
.feature-text p{font-size:12px;color:var(--text2);line-height:1.5}
.page-banner{background:var(--black);padding:48px 32px;text-align:center;position:relative;overflow:hidden}
.page-banner::after{content:'';position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#1a1a1a 33%,var(--red) 33% 66%,var(--gold) 66%)}
.page-banner-icon{font-size:36px;margin-bottom:10px}
.page-banner h1{color:#fff;font-size:28px;font-weight:700;margin-bottom:6px}
.page-banner p{color:var(--gray3);font-size:13px}
.levels-section{padding:48px 32px 0;max-width:1100px;margin:0 auto}
.section-title{font-size:22px;font-weight:700;margin-bottom:6px;text-align:center}
.section-sub{color:var(--text2);font-size:14px;margin-bottom:28px;text-align:center}
.level-tabs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:32px}
.level-tab{padding:8px 20px;border-radius:30px;font-size:13px;font-weight:600;border:1.5px solid var(--gray2);background:transparent;cursor:pointer;font-family:inherit;color:var(--text2);transition:all .15s}
.level-tab:hover{border-color:var(--red);color:var(--red)}
.level-tab.active{background:var(--red);border-color:var(--red);color:#fff}
.level-badge{display:inline-block;font-size:10px;background:rgba(255,255,255,0.25);border-radius:10px;padding:1px 6px;margin-right:4px}
.level-tab:not(.active) .level-badge{background:var(--gray2);color:var(--text2)}
.categories{max-width:1100px;margin:0 auto;padding:0 32px}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin-bottom:32px}
.cat-btn{padding:12px 8px;border-radius:10px;border:1.5px solid var(--gray2);background:#fff;cursor:pointer;font-family:inherit;font-size:13px;color:var(--text2);text-align:center;transition:all .15s}
.cat-btn:hover{border-color:var(--red);color:var(--red)}
.cat-btn.active{border-color:var(--red);background:#fff0f0;color:var(--red);font-weight:600}
.cat-icon{font-size:20px;display:block;margin-bottom:4px}
.words-section{max-width:1100px;margin:0 auto;padding:0 32px 60px}
.words-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.words-count{font-size:13px;color:var(--text2)}
.search-box{display:flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--gray2);border-radius:8px;padding:8px 14px;width:260px;transition:border-color .15s}
.search-box:focus-within{border-color:var(--red)}
.search-box input{border:none;outline:none;font-family:inherit;font-size:13px;background:transparent;color:var(--text);width:100%;text-align:right}
.search-box input::placeholder{color:var(--gray3)}
.words-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.word-card{background:#fff;border:1px solid var(--gray2);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:transform .15s,box-shadow .15s,border-color .15s;position:relative}
.word-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#1a1a1a 33%,var(--red) 33% 66%,var(--gold) 66%);opacity:0;transition:opacity .15s}
.word-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,0.09);border-color:transparent}
.word-card:hover::before{opacity:1}
.word-card.flipped .card-front{display:none}
.word-card.flipped .card-back{display:flex}
.card-front,.card-back{padding:20px}
.card-back{display:none;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:160px;background:var(--gray1)}
.card-de{font-size:22px;font-weight:700;color:var(--black);margin-bottom:4px}
.card-article{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}
.der{background:#EBF4FF;color:#1a5fa8}
.die{background:#FFE8E8;color:#a81a1a}
.das{background:#E8FFE8;color:#1a8a1a}
.none{background:var(--gray2);color:var(--text2)}
.card-ar{font-size:16px;color:var(--text2);margin-bottom:8px}
.card-ex{font-size:12px;color:var(--gray3);font-style:italic;margin-bottom:12px;min-height:18px}
.card-actions{display:flex;gap:8px;margin-top:4px;padding-top:12px;border-top:1px solid var(--gray2)}
.card-btn{flex:1;padding:7px;border-radius:7px;border:1px solid var(--gray2);background:transparent;font-size:12px;cursor:pointer;font-family:inherit;color:var(--text2);transition:all .12s}
.card-btn:hover{background:var(--gray1)}
.card-btn.learned{border-color:var(--gold);color:#856a00;background:#fffbe6}
.card-back .card-de-big{font-family:'UnifrakturMaguntia',serif;font-size:38px;color:var(--black);line-height:1.2;margin-bottom:4px}
.card-back .card-phonetic{font-size:13px;color:var(--gray3);margin-bottom:8px;font-family:monospace}
.card-back .card-ar-big{font-size:20px;font-weight:700;margin-bottom:12px}
.card-back .card-example{font-size:12px;color:var(--text2);line-height:1.6;background:#fff;border-radius:8px;padding:10px 14px;width:100%;text-align:right}
.flip-hint{font-size:11px;color:var(--gray3);margin-top:10px}
.no-example{color:var(--gray3);font-style:italic;font-size:12px}
.empty-state{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--text2)}
.empty-icon{font-size:48px;margin-bottom:12px}
.progress-bar{background:var(--gray2);height:4px;border-radius:2px;margin-bottom:24px;max-width:1100px;margin-left:auto;margin-right:auto}
.progress-fill{background:var(--gold);height:100%;border-radius:2px;transition:width .3s}
.progress-label{text-align:center;font-size:12px;color:var(--text2);margin-bottom:8px;max-width:1100px;margin-left:auto;margin-right:auto;padding:0 32px}

/* Generic content wrapper for grammar/listening/reading/blog */
.content-wrap{max-width:900px;margin:0 auto;padding:40px 32px 70px}

/* Grammar accordion */
.gram-card{background:#fff;border:1px solid var(--gray2);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.gram-head{display:flex;align-items:center;gap:12px;padding:16px 20px;cursor:pointer;user-select:none}
.gram-head:hover{background:var(--gray1)}
.gram-num{width:30px;height:30px;border-radius:50%;background:var(--red);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.gram-title{font-size:15px;font-weight:600;flex:1}
.gram-arrow{color:var(--gray3);transition:transform .2s;font-size:13px}
.gram-arrow.open{transform:rotate(90deg)}
.gram-body{max-height:0;opacity:0;overflow:hidden;padding:0 20px;transition:max-height .32s cubic-bezier(.4,0,.2,1),opacity .25s ease,padding .32s ease}
.gram-body.open{max-height:1400px;opacity:1;padding:0 20px 20px}
.gram-explain{font-size:13.5px;color:var(--text2);line-height:1.8;margin-bottom:14px}
.gram-table{width:100%;border-collapse:collapse;margin-bottom:14px;font-size:13px}
.gram-table th{background:var(--gray1);padding:8px 12px;text-align:right;font-weight:600;color:var(--text2);font-size:12px;border-bottom:1px solid var(--gray2)}
.gram-table td{padding:8px 12px;border-bottom:1px solid var(--gray2);font-family:'Inter',sans-serif}
.gram-table td:first-child{font-weight:600;color:var(--black)}
.gram-examples{background:var(--gray1);border-radius:8px;padding:12px 16px}
.gram-ex-item{padding:6px 0;font-size:13px}
.gram-ex-item .de{font-weight:600;color:var(--black);font-family:'Inter',sans-serif}
.gram-ex-item .ar{color:var(--text2);margin-right:8px}

/* Listening */
.listen-card{background:#fff;border:1px solid var(--gray2);border-radius:var(--radius);padding:16px 20px;margin-bottom:12px;display:flex;align-items:center;gap:14px}
.listen-btn{width:44px;height:44px;border-radius:50%;background:var(--red);border:none;color:#fff;font-size:16px;cursor:pointer;flex-shrink:0;transition:all .15s;display:flex;align-items:center;justify-content:center}
.listen-btn:hover{background:#aa0000;transform:scale(1.05)}
.listen-btn.playing{background:var(--gold);color:var(--black)}
.listen-text{flex:1}
.listen-de{font-size:15px;font-weight:600;color:var(--black);font-family:'Inter',sans-serif;margin-bottom:4px}
.listen-ar{font-size:13px;color:var(--text2);display:none}
.listen-ar.shown{display:block}
.listen-toggle{background:var(--gray1);border:1px solid var(--gray2);border-radius:7px;padding:6px 12px;font-size:12px;cursor:pointer;color:var(--text2);font-family:inherit;flex-shrink:0}
.listen-toggle:hover{background:var(--gray2)}
.listen-notice{background:#FFF8E1;border:1px solid #FFE082;border-radius:10px;padding:12px 16px;font-size:12.5px;color:#7a5c00;margin-bottom:20px;display:flex;gap:10px;align-items:flex-start}

/* Reading */
.read-card{background:#fff;border:1px solid var(--gray2);border-radius:var(--radius);padding:22px 24px;margin-bottom:18px}
.read-title{font-size:17px;font-weight:700;color:var(--black);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.read-para{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--gray1)}
.read-para:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.read-de{font-size:14.5px;color:var(--black);font-family:'Inter',sans-serif;line-height:1.7;margin-bottom:6px}
.read-ar{font-size:13.5px;color:var(--text2);line-height:1.8}

/* Blog */
.blog-card{background:#fff;border:1px solid var(--gray2);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;cursor:pointer}
.blog-head{display:flex;align-items:center;gap:14px;padding:18px 20px}
.blog-head:hover{background:var(--gray1)}
.blog-icon{font-size:24px;width:44px;height:44px;background:var(--gray1);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.blog-info{flex:1}
.blog-title{font-size:15px;font-weight:700;color:var(--black);margin-bottom:3px}
.blog-summary{font-size:12.5px;color:var(--text2)}
.blog-arrow{color:var(--gray3);transition:transform .2s;font-size:13px}
.blog-arrow.open{transform:rotate(90deg)}
.blog-body{max-height:0;opacity:0;overflow:hidden;padding:0 20px 0 78px;transition:max-height .32s cubic-bezier(.4,0,.2,1),opacity .25s ease,padding .32s ease}
.blog-body.open{max-height:1400px;opacity:1;padding:0 20px 20px 78px}
.blog-body p{font-size:13.5px;color:var(--text2);line-height:1.85;margin-bottom:12px}
.blog-body p:last-child{margin-bottom:0}


/* ============ نظام الأيقونات (SVG) ============ */
.feature-icon svg,.page-banner-icon svg,.empty-icon svg,.blog-icon svg,
.gram-arrow svg,.blog-arrow svg,.listen-btn svg,.ai-fab svg,.ai-send svg,
.ai-head-title svg,.btn-icon svg,.listen-toggle svg,.read-title svg{width:1em;height:1em;display:inline-block;vertical-align:-0.15em}
.feature-icon{width:40px;height:40px;border-radius:10px;background:var(--black);color:var(--gold);display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0}
.feature-icon svg{width:20px;height:20px}
.page-banner-icon{color:var(--gold);margin-bottom:10px;display:flex;justify-content:center}
.page-banner-icon svg{width:34px;height:34px}
.empty-icon{color:var(--gray3);margin-bottom:12px;display:flex;justify-content:center}
.empty-icon svg{width:44px;height:44px}
.blog-icon{color:var(--red);width:44px;height:44px;background:var(--gray1);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.blog-icon svg{width:20px;height:20px}
.gram-arrow{color:var(--gray3);transition:transform .2s;width:14px;height:14px;display:flex;align-items:center;justify-content:center}
.blog-arrow{color:var(--gray3);transition:transform .2s;width:14px;height:14px;display:flex;align-items:center;justify-content:center}
.listen-btn svg{width:16px;height:16px}
.listen-toggle{display:inline-flex;align-items:center;gap:6px}
.listen-toggle svg{width:14px;height:14px}
.btn-icon{display:inline-flex;vertical-align:-0.15em}
.btn-icon svg{width:13px;height:13px}
.read-title svg{width:17px;height:17px;flex-shrink:0}
.ai-fab svg{width:22px;height:22px}
.ai-send svg{width:16px;height:16px}
.ai-head-title svg{width:15px;height:15px;color:var(--gold)}

/* ============ الحركة الاحترافية (Motion) ============ */
@keyframes fadeInUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes popIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
@keyframes glowPulse{0%,100%{box-shadow:0 6px 20px rgba(204,0,0,.4)}50%{box-shadow:0 6px 26px rgba(204,0,0,.65),0 0 0 6px rgba(204,0,0,.08)}}

.hero-de{animation:fadeInUp .6s cubic-bezier(.2,.7,.2,1) both}
.hero-ar{animation:fadeInUp .6s cubic-bezier(.2,.7,.2,1) .08s both}
.hero-stats{animation:fadeInUp .6s cubic-bezier(.2,.7,.2,1) .16s both}
.hero-btns{animation:fadeInUp .6s cubic-bezier(.2,.7,.2,1) .24s both}
.page-banner-icon,.page-banner h1,.page-banner p{animation:fadeInUp .5s cubic-bezier(.2,.7,.2,1) both}
.page-banner h1{animation-delay:.06s}
.page-banner p{animation-delay:.12s}

.features-grid .feature{animation:fadeInUp .5s cubic-bezier(.2,.7,.2,1) both}
.features-grid .feature:nth-child(1){animation-delay:.05s}
.features-grid .feature:nth-child(2){animation-delay:.12s}
.features-grid .feature:nth-child(3){animation-delay:.19s}
.features-grid .feature:nth-child(4){animation-delay:.26s}

.words-grid .word-card,.cat-grid .cat-btn{animation:fadeInUp .4s cubic-bezier(.2,.7,.2,1) both}
.words-grid .word-card:nth-child(n+13),.cat-grid .cat-btn:nth-child(n+13){animation-delay:0s !important}
.words-grid .word-card:nth-child(1){animation-delay:.02s}
.words-grid .word-card:nth-child(2){animation-delay:.05s}
.words-grid .word-card:nth-child(3){animation-delay:.08s}
.words-grid .word-card:nth-child(4){animation-delay:.11s}
.words-grid .word-card:nth-child(5){animation-delay:.14s}
.words-grid .word-card:nth-child(6){animation-delay:.17s}
.words-grid .word-card:nth-child(7){animation-delay:.2s}
.words-grid .word-card:nth-child(8){animation-delay:.23s}
.words-grid .word-card:nth-child(9){animation-delay:.26s}
.words-grid .word-card:nth-child(10){animation-delay:.29s}
.words-grid .word-card:nth-child(11){animation-delay:.32s}
.words-grid .word-card:nth-child(12){animation-delay:.35s}

.gram-card,.blog-card,.listen-card,.read-card{animation:fadeInUp .45s cubic-bezier(.2,.7,.2,1) both}
.gram-card:nth-child(1),.blog-card:nth-child(1),.listen-card:nth-child(1){animation-delay:.03s}
.gram-card:nth-child(2),.blog-card:nth-child(2),.listen-card:nth-child(2){animation-delay:.08s}
.gram-card:nth-child(3),.blog-card:nth-child(3),.listen-card:nth-child(3){animation-delay:.13s}
.gram-card:nth-child(4),.blog-card:nth-child(4),.listen-card:nth-child(4){animation-delay:.18s}
.gram-card:nth-child(n+5),.blog-card:nth-child(n+5),.listen-card:nth-child(n+5){animation-delay:.22s}

/* تفاعلات دقيقة عند المرور بالماوس */
.cat-btn,.level-tab,.card-btn,.blog-card,.gram-card,.listen-card{transition:all .18s cubic-bezier(.3,1,.4,1)}
.cat-btn:hover,.level-tab:hover{transform:translateY(-2px)}
.card-btn:hover{border-color:var(--red);color:var(--red);transform:translateY(-1px)}
.blog-card:hover,.gram-card:hover{box-shadow:0 6px 20px rgba(0,0,0,.06)}

.ai-fab{animation:popIn .3s cubic-bezier(.3,1.4,.5,1) both,glowPulse 3.2s ease-in-out 1s infinite}
.ai-fab:hover{animation-play-state:paused}
.listen-btn.playing{animation:glowPulse 1.4s ease-in-out infinite}

/* احترام تفضيل تقليل الحركة */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* Footer */
.site-footer{background:var(--black);color:var(--gray3);text-align:center;padding:22px 20px;font-size:12.5px;border-top:3px solid var(--gold)}
.site-footer strong{color:var(--gold);font-weight:700}

/* AI Assistant Widget */
.ai-fab{position:fixed;bottom:24px;left:24px;width:56px;height:56px;border-radius:50%;background:var(--red);color:#fff;border:none;font-size:24px;cursor:pointer;box-shadow:0 6px 20px rgba(204,0,0,0.4);z-index:300;display:flex;align-items:center;justify-content:center;transition:transform .15s}
.ai-fab:hover{transform:scale(1.08)}
.ai-panel{position:fixed;bottom:92px;left:24px;width:340px;max-width:calc(100vw - 32px);height:460px;max-height:calc(100vh - 140px);background:#fff;border-radius:16px;box-shadow:0 12px 40px rgba(0,0,0,0.28);z-index:300;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--gray2);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(14px) scale(.96);transform-origin:bottom left;transition:opacity .2s ease,transform .2s cubic-bezier(.3,1.4,.5,1),visibility 0s linear .2s}
.ai-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1);transition:opacity .2s ease,transform .2s cubic-bezier(.3,1.4,.5,1)}
.ai-head{background:var(--black);color:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:3px solid var(--gold);flex-shrink:0}
.ai-head-title{font-size:14px;font-weight:700;display:flex;align-items:center;gap:8px}
.ai-close{background:none;border:none;color:var(--gray3);font-size:18px;cursor:pointer;line-height:1;padding:2px}
.ai-close:hover{color:#fff}
.ai-messages{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;background:var(--gray1)}
.ai-msg{max-width:85%;padding:9px 13px;border-radius:12px;font-size:13px;line-height:1.65;white-space:pre-wrap}
.ai-msg.user{align-self:flex-end;background:var(--red);color:#fff;border-bottom-left-radius:4px}
.ai-msg.bot{align-self:flex-start;background:#fff;color:var(--text);border:1px solid var(--gray2);border-bottom-right-radius:4px}
.ai-msg.bot.loading{color:var(--gray3);font-style:italic}
.ai-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--gray2);background:#fff;flex-shrink:0}
.ai-input-row input{flex:1;border:1.5px solid var(--gray2);border-radius:20px;padding:9px 16px;font-family:inherit;font-size:13px;outline:none;text-align:right;color:var(--text)}
.ai-input-row input:focus{border-color:var(--red)}
.ai-send{width:38px;height:38px;border-radius:50%;background:var(--red);color:#fff;border:none;cursor:pointer;font-size:14px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.ai-send:hover{background:#aa0000}
.ai-send:disabled{opacity:.5;cursor:not-allowed}

@media(max-width:600px){
.ai-fab{bottom:16px;left:16px;width:52px;height:52px;font-size:22px}
.ai-panel{bottom:80px;left:16px;width:calc(100vw - 32px);height:70vh}
}

/* ============ الاستجابة للموبايل ============ */
@media(max-width:820px){
  /* شريط التنقل: نبدّل الروابط بقائمة همبرغر */
  nav{padding:0 16px}
  .nav-burger{display:flex}
  .nav-logo-text{font-size:14px}
  .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    position:fixed;top:60px;right:0;left:0;
    background:var(--black);border-bottom:3px solid var(--gold);
    padding:10px 16px 16px;z-index:150;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .18s,transform .18s;
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-links button{text-align:center;padding:14px;font-size:15px;border-radius:8px}

  /* الهيرو */
  .hero{padding:56px 20px 64px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .hero-btns{flex-direction:column;align-items:stretch}
  .hero-btns .btn-primary,.hero-btns .btn-secondary{width:100%}

  /* حواف موحّدة للأقسام */
  .levels-section,.categories,.words-section,.content-wrap,.page-banner{padding-left:16px;padding-right:16px}
  .page-banner h1{font-size:22px}

  /* شبكة الكلمات: عمود واحد وكروت مريحة للمس */
  .words-grid{grid-template-columns:1fr}
  .words-header{flex-direction:column;align-items:stretch}
  .search-box{width:100%}
  .cat-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}

  /* جداول القواعد: تفضل تتقرا من غير ما تتقطع، بسكرول أفقي بسيط */
  .gram-table{display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .gram-head{padding:14px 16px}
  .gram-body{padding:0 16px 16px}

  /* الاستماع */
  .listen-card{flex-wrap:wrap;padding:14px 16px}
  .listen-toggle{width:100%;text-align:center}

  /* القراءة */
  .read-card{padding:18px 16px}

  /* المدونة: إزاحة أبسط بدل مسافة كبيرة على اليمين */
  .blog-head{padding:14px 16px;gap:10px}
  .blog-body{padding:0 16px 16px}
  .blog-icon{width:36px;height:36px;font-size:20px}

  /* المساعد الذكي: يفضل قابل للمس بسهولة */
  .ai-fab{width:54px;height:54px}
}