/* ===== Theme variables (light/dark overrides) — same family as word-to-pdf-plain.php ===== */
#app-content[data-theme="light"]{--primary-light:#6c83f7;--darker:#020617;--gray-light:#94a3b8}
#app-content[data-theme="dark"]{--primary-light:#6c83f7;--darker:#020617;--gray-light:#94a3b8}
#app-content[data-theme="light"] .hero{background:linear-gradient(135deg,#eef2ff 0%,#e0e7ff 50%,#eef2ff 100%)}
#app-content[data-theme="light"] .hero h1{color:#1e293b}
#app-content[data-theme="light"] .hero p{color:#64748b}
#app-content[data-theme="light"] .hero::after{background:#f0f4ff;background:linear-gradient(135deg,#f0f4ff,#e0e7ff)}
#app-content[data-theme="light"] .file-info-bar{background:#f1f5f9}
#app-content[data-theme="light"] .preview-container{background:#f8fafc}
#app-content[data-theme="light"] .preview-container .preview-text{color:#1e293b}
#app-content[data-theme="light"] .setting-card{background:#f8fafc}
#app-content[data-theme="light"] .setting-card select{background:#fff;color:#1e293b}
#app-content[data-theme="light"] .loading-overlay{background:rgba(248,250,252,0.9)}
#app-content[data-theme="light"] .loading-text{color:#1e293b}
#app-content[data-theme="light"] .stat-box{background:#f8fafc}
#app-content[data-theme="light"] .stat-box .s-val{color:#1e293b}
#app-content[data-theme="light"] .progress-wrap{background:#f8fafc}
#app-content[data-theme="light"] .success-message h4{color:#059669}
#app-content[data-theme="light"] .url-input-zone{background:rgba(67,97,238,0.04)}
#app-content[data-theme="light"] .url-input{background:#fff;color:#1e293b}
#app-content[data-theme="light"] .example-item{background:#f8fafc}
#app-content[data-theme="light"] .example-item .example-url{color:#475569}

/* ===== Reset ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg-body);color:var(--text-primary);line-height:1.75;overflow-x:hidden;min-height:100vh}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}
a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-light)}
img{max-width:100%;height:auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}@media(max-width:768px){.section{padding:40px 0}}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-body)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--gray)}

/* ===== Hero ===== */
.hero{padding:100px 0 80px;background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#0f172a 100%);color:var(--text-primary);position:relative;overflow:hidden;text-align:center}
.hero::before{content:'';position:absolute;top:-50%;left:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(67,97,238,0.08) 0%,transparent 70%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:60px;background:var(--bg-body);clip-path:ellipse(55% 100% at 50% 100%)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(67,97,238,0.15);color:var(--primary);padding:8px 20px;border-radius:50px;font-size:.85rem;font-weight:600;margin-bottom:20px;border:1px solid rgba(67,97,238,0.2)}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;margin-bottom:16px;line-height:1.2}
.hero p{font-size:1.1rem;color:var(--text-secondary);max-width:680px;margin:0 auto;line-height:1.7}

/* ===== Tool wrapper ===== */
.tool-wrapper{margin-top:-30px;position:relative;z-index:10;padding-bottom:2rem}
.tool-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:2.5rem;box-shadow:var(--shadow);border:1px solid var(--border)}

/* ===== URL Input Zone ===== */
.url-input-zone{border:2.5px dashed rgba(67,97,238,0.3);border-radius:var(--radius-lg);padding:3.5rem 2rem;text-align:center;transition:all .3s;background:rgba(67,97,238,0.03)}
.url-input-zone:hover{border-color:var(--primary);background:rgba(67,97,238,0.07)}
.url-input-zone .icon{font-size:3.5rem;color:var(--primary);margin-bottom:16px}
.url-input-zone h3{font-size:1.3rem;margin-bottom:8px;color:var(--text-primary)}
.url-input-zone p{color:var(--text-secondary);margin-bottom:20px}
.url-input-group{display:flex;gap:12px;max-width:720px;margin:0 auto}
@media(max-width:768px){.url-input-group{flex-direction:column}}
.url-input{flex:1;padding:14px 18px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:.95rem;outline:none;background:var(--bg-card);color:var(--text-primary);transition:border-color .2s}
.url-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(67,97,238,0.1)}
.url-validation{min-height:24px;font-size:.85rem;margin-top:8px;max-width:720px;margin-left:auto;margin-right:auto}
.valid-url{color:var(--success)}
.invalid-url{color:var(--danger)}

/* ===== Example list ===== */
.example-list{display:flex;flex-direction:column;gap:8px;margin-top:16px;max-width:720px;margin-left:auto;margin-right:auto}
.example-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-body);border-radius:var(--radius);cursor:pointer;transition:all .2s;border:1px solid var(--border);text-align:left}
.example-item:hover{background:rgba(67,97,238,0.07);border-color:var(--primary);transform:translateX(4px)}
.example-item .example-icon{color:var(--primary);flex-shrink:0;font-size:1.2rem}
.example-item .example-url{font-size:.88rem;color:var(--text-secondary)}

/* ===== File info bar ===== */
.file-info-bar{background:var(--bg-body);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;font-size:.88rem;color:var(--text-secondary);margin-bottom:1rem}
.file-info-bar .info-chip{display:inline-flex;align-items:center;gap:6px;background:var(--bg-card);padding:4px 12px;border-radius:8px;border:1px solid var(--border);white-space:nowrap}
.file-info-bar .info-chip i{color:var(--primary);font-size:.8rem}

/* ===== Stats ===== */
.stats-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin:12px 0}
.stat-box{background:var(--bg-body);border:1px solid var(--border);border-radius:10px;padding:12px;text-align:center}
.stat-box .s-val{font-size:1.2rem;font-weight:800;color:var(--text-primary)}
.stat-box .s-lbl{font-size:.7rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-top:2px}

/* ===== Preview ===== */
.preview-container{background:var(--bg-body);border-radius:var(--radius);padding:1.5rem;min-height:250px;border:1px solid var(--border);overflow:auto}
.preview-container .preview-text{font-size:12pt;color:var(--text-primary);line-height:1.6;white-space:pre-wrap;word-wrap:break-word;font-family:'Inter',sans-serif}
.preview-container .preview-text.arabic{direction:rtl;text-align:right;font-family:'Noto Naskh Arabic','Traditional Arabic',serif}

/* ===== Settings ===== */
.settings-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin:16px 0}
.setting-card{background:var(--bg-body);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;transition:border-color .2s}
.setting-card:focus-within{border-color:var(--primary)}
.setting-card label{font-size:.82rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px;display:flex;align-items:center;gap:6px}
.setting-card label i{color:var(--primary);font-size:.9rem}
.setting-card select,.setting-card input[type="checkbox"]{border:1.5px solid var(--border);border-radius:8px;padding:10px 12px;font-size:.92rem;color:var(--text-primary);background:var(--bg-card);width:100%;cursor:pointer}
.setting-card select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(67,97,238,0.1)}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-weight:600;font-size:.95rem;border-radius:10px;border:none;cursor:pointer;transition:all .25s;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 15px rgba(67,97,238,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(67,97,238,0.4);color:#fff}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-success{background:linear-gradient(135deg,var(--success),#059669);color:#fff;box-shadow:0 4px 15px rgba(6,214,160,0.3)}
.btn-success:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(6,214,160,0.4);color:#fff}
.btn-outline{background:transparent;border:2px solid var(--border);color:var(--text-secondary)}
.btn-outline:hover{background:var(--bg-card-hover);color:#fff;transform:translateY(-2px)}
.btn-lg{padding:14px 36px;font-size:1.05rem}
.btn-block{width:100%}

/* ===== Utility ===== */
.d-none{display:none!important}
.mt-3{margin-top:1rem!important}
.mt-4{margin-top:1.5rem!important}
.mb-3{margin-bottom:1rem!important}
.mb-4{margin-bottom:1.5rem!important}

/* ===== Trust bar ===== */
.trust-bar{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;padding:20px;margin:16px 0;background:var(--bg-body);border-radius:var(--radius);border:1px solid var(--border)}
.trust-item{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text-secondary)}
.trust-item i{color:var(--primary)}

/* ===== Content cards ===== */
.content-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:40px;margin-bottom:32px;box-shadow:var(--shadow);border:1px solid var(--border)}
.content-card h2{font-size:1.5rem;margin-bottom:16px;color:var(--text-primary)}
.content-card h3{font-size:1.2rem;margin-bottom:12px;color:var(--text-primary)}
.content-card p{color:var(--text-secondary);margin-bottom:16px;line-height:1.8}
.content-card ul{color:var(--text-secondary);margin-bottom:16px;padding-left:20px}
.content-card ul li{margin-bottom:8px;line-height:1.7}
.content-card ul li strong{color:var(--text-primary)}

/* ===== Case studies ===== */
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px;margin:24px 0}
.case-card{background:var(--bg-body);border-radius:14px;padding:24px;border:1px solid var(--border);transition:all .25s;position:relative}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.case-number{position:absolute;top:12px;right:16px;font-size:2rem;font-weight:900;color:rgba(67,97,238,0.08);line-height:1}
.case-card h3{font-size:1rem;font-weight:600;margin-bottom:12px;color:var(--text-primary)}
.case-detail{font-size:.88rem;color:var(--text-secondary);margin-bottom:8px;line-height:1.5}
.case-detail strong{color:var(--primary)}

/* ===== Usage steps ===== */
.usage-steps{margin:24px 0}
.usage-step{display:flex;gap:16px;margin-bottom:20px;align-items:flex-start}
.usage-step:last-child{margin-bottom:0}
.usage-step-num{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem;flex-shrink:0}
.usage-step-content{flex:1}
.usage-step-content h3{font-size:.95rem;margin-bottom:4px}
.usage-step-content p{font-size:.85rem;color:var(--text-secondary);line-height:1.6;margin-bottom:0}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:all .2s;background:var(--bg-body)}
.faq-item:hover{border-color:var(--primary)}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:18px 20px;background:var(--bg-card);border:none;cursor:pointer;font-size:.95rem;font-weight:600;color:var(--text-primary);text-align:left;transition:all .2s}
.faq-question:hover{background:rgba(67,97,238,0.05)}
.faq-toggle{transition:transform .3s;color:var(--gray);flex-shrink:0}
.faq-item.open .faq-toggle{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 20px;background:var(--bg-body)}
.faq-item.open .faq-answer{max-height:800px;padding:16px 20px}
.faq-answer div,.faq-answer p{font-size:.9rem;color:var(--text-secondary);line-height:1.7;margin-bottom:8px}

/* ===== Related tools ===== */
.related-tools{margin:60px 0;padding:40px;background:var(--bg-card);border-radius:var(--radius-xl);box-shadow:var(--shadow);border:1px solid var(--border)}
.related-tools h2{font-size:1.5rem;margin-bottom:8px}
.related-tools>p{color:var(--text-secondary);margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.related-card{display:flex;flex-direction:column;padding:14px 16px;background:var(--bg-body);border-radius:var(--radius);border:1px solid var(--border);transition:all .25s;text-decoration:none}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--primary)}
.related-icon{color:var(--primary);font-size:1.2rem;margin-bottom:6px}
.related-name{font-weight:600;color:var(--primary);margin-bottom:4px;font-size:.9rem}
.related-desc{color:var(--text-muted);font-size:.82rem;line-height:1.4}

/* ===== Smart badge ===== */
.smart-badge{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,rgba(67,97,238,0.15),rgba(114,9,183,0.15));color:var(--primary);padding:4px 12px;border-radius:50px;font-size:.75rem;font-weight:600;border:1px solid rgba(67,97,238,0.2)}
.smart-badge i{font-size:.7rem}

/* ===== Loading overlay ===== */
.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,23,42,0.85);backdrop-filter:blur(8px);z-index:9998;display:none;align-items:center;justify-content:center;flex-direction:column;gap:16px}
.loading-overlay.active{display:flex}
.loading-spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{color:#fff;font-size:1rem;font-weight:500}

/* ===== Success message ===== */
.success-message{display:none;background:linear-gradient(135deg,rgba(6,214,160,0.1),rgba(5,150,105,0.1));border:1px solid rgba(6,214,160,0.3);border-radius:14px;padding:28px;text-align:center;margin-top:1rem}
.success-message.visible{display:block}
.success-message i{font-size:2.5rem;color:var(--success);margin-bottom:12px}
.success-message h4{color:var(--success);margin-bottom:8px}
.success-message p{color:var(--text-secondary);margin-bottom:16px}

/* ===== Theme toggle / Back to top / Notification ===== */
.theme-float-btn{position:fixed;right:20px;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:var(--bg-card);color:var(--text-primary);border:1.5px solid var(--border);cursor:pointer;z-index:999;display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:var(--shadow);transition:all .3s}
.theme-float-btn:hover{transform:translateY(-50%) scale(1.1);border-color:var(--primary);color:var(--primary)}
.back-to-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border:none;cursor:pointer;z-index:999;display:none;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:0 4px 15px rgba(67,97,238,0.3);transition:all .3s}
.back-to-top.show{display:flex}
.back-to-top:hover{transform:translateY(-3px)}
.notification{position:fixed;bottom:30px;right:30px;padding:16px 24px;border-radius:var(--radius);color:#fff;font-weight:600;font-size:.9rem;z-index:9999;transform:translateY(100px);opacity:0;transition:all .4s;max-width:400px}
.notification.show{transform:translateY(0);opacity:1}
.n-success{background:linear-gradient(135deg,var(--success),#059669)}
.n-error{background:linear-gradient(135deg,var(--danger),#dc2626)}
.n-info{background:linear-gradient(135deg,var(--primary),var(--primary-dark))}
.n-warning{background:linear-gradient(135deg,#d97706,#b45309)}

/* ===== Progress ===== */
.progress-wrap{background:var(--bg-body);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-top:1rem}
.progress-track{height:8px;background:rgba(255,255,255,0.06);border-radius:4px;overflow:hidden}
.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:width .3s}

/* ===== Responsive ===== */
@media(max-width:768px){.tool-card{padding:1.5rem}.url-input-zone{padding:2rem 1rem}.content-card{padding:24px}.case-grid{grid-template-columns:1fr}.related-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.settings-grid{grid-template-columns:1fr}}