@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Variables ── */
:root {
  --bg:        #F5F5F7;
  --surface:   #FFFFFF;
  --border:    #E8E8ED;
  --text:      #1D1D1F;
  --text-muted:#6E6E73;
  --accent:    #0071E3;
  --accent-h:  #0077ED;
  --danger:    #FF3B30;
  --success:   #34C759;
  --warning:   #FF9500;
  --radius:    14px;
  --radius-sm: 8px;
  --shadow:    0 2px 20px rgba(0,0,0,.06);
  --shadow-md: 0 4px 30px rgba(0,0,0,.10);
  --transition:200ms ease;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:15px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{cursor:pointer;font-family:inherit}
ul{list-style:none}

/* ── Container ── */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:760px;margin:0 auto;padding:0 20px}

/* ── Typography ── */
h1,h2,h3,h4,h5{font-weight:700;line-height:1.2}
.gradient-text{background:linear-gradient(135deg,#0071E3,#5856D6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;border:none;transition:all var(--transition);white-space:nowrap;text-decoration:none;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-h);transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,113,227,.3)}
.btn-outline{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}
.btn-outline:hover{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;color:var(--text-muted)}
.btn-ghost:hover{background:var(--border);color:var(--text)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#E0342A}
.btn-danger-ghost{background:transparent;color:var(--danger)}
.btn-danger-ghost:hover{background:#FFF0EF}
.btn-white{background:#fff;color:var(--accent)}
.btn-white:hover{background:#F5F5F7}
.btn-success{background:var(--success);color:#fff}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-xs{padding:5px 10px;font-size:12px;border-radius:6px}
.btn-lg{padding:13px 28px;font-size:15px}
.btn-xl{padding:16px 36px;font-size:16px;border-radius:12px}
.btn-full{width:100%;justify-content:center}
.btn-loader{display:inline-flex;align-items:center}
.hidden{display:none!important}

/* ── Card ── */
.card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:28px;box-shadow:var(--shadow)}
.card-title{font-size:17px;font-weight:700;color:var(--text)}
.card-header-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.mb-2{margin-bottom:8px}.mb-3{margin-bottom:16px}.mb-4{margin-bottom:24px}.mt-2{margin-top:8px}.mt-3{margin-top:16px}.mt-4{margin-top:24px}

/* ── Forms ── */
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px;display:flex;justify-content:space-between;align-items:center}
.form-label-link{font-size:12px;color:var(--accent);font-weight:500}
.form-input{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:inherit;color:var(--text);background:#fff;transition:border-color var(--transition),box-shadow var(--transition);outline:none}
.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,113,227,.12)}
.form-input::placeholder{color:#C0C0C5}
.form-textarea{resize:vertical;min-height:100px}
.form-select{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236E6E73' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;appearance:none;padding-right:40px}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.form-section-title{font-size:13px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin:24px 0 12px}
.form-check{display:flex;align-items:center;gap:8px;margin-bottom:16px}
.form-checkbox{width:16px;height:16px;accent-color:var(--accent)}
.input-icon-wrap{position:relative}
.input-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:14px;pointer-events:none}
.input-icon-wrap .form-input{padding-left:38px}
.input-toggle-pw{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);font-size:14px;padding:4px}
.input-prefix-wrap{position:relative}
.input-prefix{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:14px;font-weight:600}
.form-input-prefixed{padding-left:30px}

/* Toggle switch */
.toggle-group{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}
.toggle-item{display:flex;align-items:center;gap:12px;cursor:pointer}
.toggle-item input[type=checkbox]{display:none}
.toggle-switch{width:42px;height:24px;background:var(--border);border-radius:12px;position:relative;flex-shrink:0;transition:background var(--transition)}
.toggle-switch::after{content:'';position:absolute;top:3px;left:3px;width:18px;height:18px;background:#fff;border-radius:50%;box-shadow:0 1px 4px rgba(0,0,0,.2);transition:transform var(--transition)}
.toggle-item input:checked ~ .toggle-switch{background:var(--accent)}
.toggle-item input:checked ~ .toggle-switch::after{transform:translateX(18px)}
.toggle-label{font-size:14px;color:var(--text)}

/* ── Alerts & Flash ── */
.alert{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius-sm);font-size:14px;margin-bottom:16px}
.alert-success{background:#EDFAF2;color:#1A7A3D;border:1px solid #B5EAC9}
.alert-danger,.alert-error{background:#FFF0EF;color:#C0392B;border:1px solid #FFCDD2}
.alert-warning{background:#FFF8E6;color:#92670C;border:1px solid #FFE0A0}
.alert-info{background:#EBF5FF;color:#1155CC;border:1px solid #BAD4FF}
.alert-link{font-weight:700;text-decoration:underline;color:inherit}
.flash-container,.flash-wrap{position:fixed;top:16px;right:16px;z-index:9999;display:flex;flex-direction:column;gap:8px;max-width:380px}
.flash{display:flex;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--radius-sm);font-size:14px;box-shadow:var(--shadow-md);animation:slideIn .3s ease}
.flash-success{background:#fff;border-left:4px solid var(--success);color:#1A7A3D}
.flash-error{background:#fff;border-left:4px solid var(--danger);color:#C0392B}
.flash-close{margin-left:auto;background:none;border:none;font-size:18px;line-height:1;color:var(--text-muted);cursor:pointer}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}

/* Toast */
.toast{position:fixed;bottom:24px;right:24px;z-index:99999;padding:12px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;box-shadow:var(--shadow-md);animation:slideIn .3s ease}
.toast-success{background:var(--success);color:#fff}
.toast-error{background:var(--danger);color:#fff}

/* ── Badges ── */
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;background:var(--bg);color:var(--text-muted);border:1px solid var(--border)}
.badge-premium{background:#FFF8E6;color:#92670C;border-color:#FFE0A0}
.badge-admin{background:#EBF5FF;color:#1155CC;border-color:#BAD4FF}

/* ── Navigation ── */
.navbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border)}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:60px}
.nav-brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:var(--text)}
.brand-icon{font-size:20px}
.nav-menu{display:flex;align-items:center;gap:8px}
.nav-link{padding:7px 12px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--text-muted);transition:all var(--transition)}
.nav-link:hover{color:var(--text);background:var(--bg)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:all var(--transition)}

/* ── Hero ── */
.hero{padding:100px 0 80px;text-align:center;position:relative;overflow:hidden}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:6px 16px;font-size:13px;font-weight:600;margin-bottom:28px;color:var(--accent)}
.hero-title{font-size:clamp(40px,6vw,72px);font-weight:800;line-height:1.08;margin-bottom:20px;letter-spacing:-.03em}
.hero-subtitle{font-size:18px;color:var(--text-muted);max-width:600px;margin:0 auto 36px;line-height:1.6}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat-num{display:block;font-size:28px;font-weight:800;color:var(--text)}
.hero-stat-label{font-size:13px;color:var(--text-muted)}
.hero-stat-divider{width:1px;height:40px;background:var(--border)}
.hero-bg-shape{position:absolute;bottom:-60px;left:50%;transform:translateX(-50%);width:900px;height:400px;background:radial-gradient(ellipse,rgba(0,113,227,.06) 0%,transparent 70%);pointer-events:none;border-radius:50%}

/* ── Section ── */
.section{padding:80px 0}
.section-alt{background:var(--surface)}
.section-header{text-align:center;margin-bottom:56px}
.section-label{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:12px}
.section-title{font-size:clamp(28px,4vw,44px);font-weight:800;margin-bottom:16px;letter-spacing:-.02em}
.section-subtitle{font-size:17px;color:var(--text-muted);max-width:560px;margin:0 auto}

/* ── Features Grid ── */
.features-strip{padding:32px 0;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.strip-item{display:flex;align-items:center;gap:12px}
.strip-icon{width:40px;height:40px;border-radius:10px;background:var(--bg);display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:18px;flex-shrink:0}
.strip-item strong{display:block;font-size:14px;font-weight:700}
.strip-item span{font-size:12px;color:var(--text-muted)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:all var(--transition)}
.feature-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.feature-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.feature-icon-blue{background:#EBF5FF;color:#0071E3}
.feature-icon-purple{background:#F0EEFF;color:#5856D6}
.feature-icon-green{background:#EDFAF2;color:#34C759}
.feature-icon-orange{background:#FFF8E6;color:#FF9500}
.feature-icon-pink{background:#FFF0F5;color:#FF2D55}
.feature-card h3{font-size:17px;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text-muted);line-height:1.6}

/* Steps */
.steps-grid{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.step-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;text-align:center;flex:1;min-width:200px;max-width:280px}
.step-number{font-size:32px;font-weight:900;color:var(--accent);opacity:.15;margin-bottom:12px;line-height:1}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-muted)}
.step-arrow{font-size:20px;color:var(--border)}

/* Pricing */
.pricing-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:700px;margin:0 auto}
.pricing-card{background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius);padding:32px;position:relative}
.pricing-card-featured{border-color:var(--accent);background:var(--surface)}
.pricing-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;padding:4px 16px;border-radius:20px;font-size:12px;font-weight:700}
.pricing-plan{font-size:14px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.pricing-price{font-size:40px;font-weight:800;margin-bottom:20px}
.pricing-price span{font-size:16px;font-weight:500;color:var(--text-muted)}
.pricing-features{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.pricing-features li{display:flex;align-items:center;gap:10px;font-size:14px}
.pricing-features i{color:var(--success);font-size:13px;flex-shrink:0}

/* CTA */
.cta-section{background:linear-gradient(135deg,#0071E3,#5856D6);padding:80px 0;text-align:center}
.cta-title{font-size:clamp(28px,4vw,44px);font-weight:800;color:#fff;margin-bottom:12px}
.cta-subtitle{font-size:17px;color:rgba(255,255,255,.8);margin-bottom:32px}

/* ── Footer ── */
.footer{background:var(--surface);border-top:1px solid var(--border);padding:56px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand p{font-size:14px;color:var(--text-muted);margin-top:12px;max-width:240px}
.footer-links h5{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px;color:var(--text-muted)}
.footer-links{display:flex;flex-direction:column;gap:0}
.footer-links a{font-size:14px;color:var(--text-muted);padding:5px 0;transition:color var(--transition)}
.footer-links a:hover{color:var(--text)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;font-size:13px;color:var(--text-muted)}

/* ── Auth Layout ── */
.auth-body{background:var(--bg);min-height:100vh;display:flex;align-items:stretch}
.auth-wrapper{display:grid;grid-template-columns:1fr 1fr;min-height:100vh;width:100%}
.auth-card{display:flex;flex-direction:column;justify-content:center;padding:60px;background:var(--surface)}
.auth-header{margin-bottom:40px}
.auth-brand{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:800}
.auth-form-wrap{max-width:380px}
.auth-title{font-size:28px;font-weight:800;margin-bottom:8px}
.auth-subtitle{font-size:15px;color:var(--text-muted);margin-bottom:32px}
.auth-form{display:flex;flex-direction:column;gap:0}
.auth-divider{text-align:center;position:relative;margin:20px 0}
.auth-divider::before{content:'';position:absolute;top:50%;left:0;right:0;height:1px;background:var(--border)}
.auth-divider span{background:var(--surface);padding:0 12px;position:relative;font-size:13px;color:var(--text-muted)}
.auth-footer-text{font-size:14px;color:var(--text-muted);margin-top:20px;text-align:center}
.auth-link{color:var(--accent);font-weight:600}
.auth-bg{background:linear-gradient(135deg,#0071E3 0%,#5856D6 100%);display:flex;align-items:center;justify-content:center}
.auth-bg-content{padding:60px}
.auth-feature-list{display:flex;flex-direction:column;gap:24px}
.auth-feature-item{display:flex;align-items:center;gap:16px;color:#fff}
.auth-feature-icon{font-size:24px;width:48px;height:48px;background:rgba(255,255,255,.15);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.auth-feature-item span:last-child{font-size:16px;font-weight:500}

/* ── Modals ── */
.modal{display:none;position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,.45);align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex;animation:fadeIn .2s ease}
.modal-box{background:#fff;border-radius:var(--radius);padding:28px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-lg{max-width:680px}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.modal-header h3{font-size:18px;font-weight:700}
.modal-close{background:none;border:none;font-size:22px;line-height:1;color:var(--text-muted);padding:4px;border-radius:6px}
.modal-close:hover{background:var(--bg)}
.modal-footer{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ── Divider ── */
.divider{border:none;border-top:1px solid var(--border);margin:24px 0}

/* ── Empty State ── */
.empty-state{text-align:center;padding:40px;color:var(--text-muted)}
.empty-state i{font-size:36px;margin-bottom:12px;opacity:.3}
.empty-state p{font-size:14px}
.empty-state-lg{text-align:center;padding:80px 40px}
.empty-state-icon{font-size:56px;margin-bottom:16px;color:var(--border)}
.empty-state-lg h3{font-size:22px;margin-bottom:8px}
.empty-state-lg p{font-size:15px;color:var(--text-muted);margin-bottom:24px}

/* ── File Drop Area ── */
.file-drop-area{border:2px dashed var(--border);border-radius:var(--radius-sm);padding:28px;text-align:center;cursor:pointer;transition:all var(--transition);position:relative}
.file-drop-area:hover,.file-drop-area.drag-over{border-color:var(--accent);background:#EBF5FF}
.file-drop-area i{font-size:28px;color:var(--text-muted);margin-bottom:8px}
.file-drop-area p{font-size:14px;color:var(--text-muted)}
.file-drop-area span{font-size:12px;color:var(--border)}
.file-drop-area input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}

/* ── Error Page ── */
.error-page{text-align:center;padding:120px 20px}
.error-code{font-size:120px;font-weight:900;color:var(--border);line-height:1}
.error-title{font-size:32px;margin-bottom:12px}
.error-desc{color:var(--text-muted);margin-bottom:32px}

/* Text utilities */
.text-muted{color:var(--text-muted)}
.d-block{display:block}

/* ── Responsive & Mobile Menu ── */
@media(max-width:900px){
  .features-grid{grid-template-columns:1fr 1fr}
  .strip-grid{grid-template-columns:1fr 1fr}
  .form-row-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .auth-wrapper{grid-template-columns:1fr}
  .auth-bg{display:none}
  .auth-card{padding:40px 32px}
}

@media(max-width:768px){
  .features-grid,.strip-grid,.form-row-2{grid-template-columns:1fr}
  .hero{padding:70px 0 48px}
  .steps-grid{flex-direction:column;gap:20px;}
  .step-arrow{transform:rotate(90deg);margin:8px 0;}
  .footer-grid{grid-template-columns:1fr}
  
  /* Mobile Menu Toggles */
  .nav-toggle{display:flex;z-index:1001;}
  .nav-menu{
    display:flex;
    position:fixed;
    inset:60px 0 0;
    background:rgba(255, 255, 255, 0.98);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    flex-direction:column;
    padding:40px 24px;
    gap:16px;
    border-top:1px solid var(--border);
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index:1000;
  }
  .nav-menu.open{
    opacity:1;
    transform:translateY(0);
    pointer-events:auto;
  }
  .nav-link{
    font-size:18px;
    font-weight:600;
    padding:12px 16px;
    width:100%;
    text-align:center;
  }
  .nav-menu .btn {
    width: 100%;
    justify-content: center;
    padding: 14px;
    font-size: 16px;
  }

  /* Hamburger to Cross transition */
  .nav-toggle.active span:nth-child(1){
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.active span:nth-child(2){
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3){
    transform: translateY(-7px) rotate(-45deg);
  }
  
  /* Pricing adjustments */
  .pricing-cards {
    grid-template-columns: 1fr;
    max-width: 380px;
  }
}

/* ── Premium Pricing & FAQ Page Styles ── */
.pricing-hero {
  padding: 80px 0 40px;
  text-align: center;
  background: radial-gradient(circle at 50% 100%, rgba(0, 113, 227, 0.05) 0%, transparent 60%);
}
.pricing-hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.pricing-hero p {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.faq-section {
  padding: 80px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}
@media(max-width:768px) {
  .faq-grid {
    grid-template-columns: 1fr;
  }
}
.faq-card {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 24px;
  border: 1px solid var(--border);
  transition: transform var(--transition);
}
.faq-card:hover {
  transform: translateY(-2px);
}
.faq-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.faq-card h4 i {
  color: var(--accent);
}
.faq-card p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
}