:root {
    --qf-bg: #fffaf4;
    --qf-surface: #ffffff;
    --qf-surface-soft: #fff6ec;
    --qf-surface-muted: #f8f6f2;
    --qf-border: #eadfd2;
    --qf-text: #151827;
    --qf-muted: #6f7280;
    --qf-primary: #f36b21;
    --qf-primary-dark: #d95212;
    --qf-primary-soft: #fff0e6;
    --qf-navy: #14213d;
    --qf-blue: #3569d4;
    --qf-green: #3aa675;
    --qf-green-soft: #eaf8f1;
    --qf-red: #d75555;
    --qf-yellow: #f4b63f;
    --qf-shadow: 0 18px 50px rgba(29, 33, 48, .08);
    --qf-shadow-sm: 0 8px 24px rgba(29, 33, 48, .06);
    --qf-radius: 24px;
    --qf-radius-md: 18px;
    --qf-radius-sm: 12px;
    --qf-sidebar: 272px;
    font-family: "Segoe UI", Tahoma, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--qf-text);
    background: var(--qf-bg);
    font-family: var(--qf-font, "Segoe UI", Tahoma, Arial, sans-serif);
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }
[hidden] { display: none !important; }

.qf-container { width: min(1180px, calc(100% - 36px)); margin-inline: auto; }
.qf-narrow { width: min(850px, 100%); }
.qf-muted { color: var(--qf-muted); }

.qf-brand {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 28px;
    font-weight: 900;
    letter-spacing: -1px;
    color: var(--qf-navy);
}
.qf-brand span { color: var(--qf-primary); }

.qf-public-nav {
    position: sticky;
    inset-block-start: 0;
    z-index: 50;
    background: rgba(255, 250, 244, .94);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(234, 223, 210, .9);
}
.qf-nav-inner {
    height: 76px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
}
.qf-main-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 26px;
    color: #434654;
    font-weight: 700;
    font-size: 14px;
}
.qf-main-links a {
    position: relative;
    padding-block: 10px;
}
.qf-main-links a::after {
    content: "";
    position: absolute;
    inset-inline: 15% 15%;
    inset-block-end: 0;
    height: 2px;
    border-radius: 4px;
    background: var(--qf-primary);
    transform: scaleX(0);
    transition: .2s ease;
}
.qf-main-links a:hover::after,
.qf-main-links a.is-active::after { transform: scaleX(1); }
.qf-nav-actions { display: flex; gap: 10px; }
.qf-mobile-menu { display: none; background: none; border: 0; font-size: 22px; }

.qf-btn {
    min-height: 42px;
    padding: 10px 18px;
    border-radius: 12px;
    border: 1px solid transparent;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.qf-btn:hover { transform: translateY(-1px); }
.qf-btn-primary {
    background: linear-gradient(135deg, var(--qf-primary), #ff8a35);
    color: #fff;
    box-shadow: 0 10px 24px rgba(243,107,33,.20);
}
.qf-btn-primary:hover { background: linear-gradient(135deg, var(--qf-primary-dark), var(--qf-primary)); }
.qf-btn-secondary {
    background: var(--qf-navy);
    color: #fff;
}
.qf-btn-ghost {
    background: var(--qf-surface);
    border-color: var(--qf-border);
    color: var(--qf-navy);
}
.qf-btn-lg { min-height: 50px; padding-inline: 24px; border-radius: 14px; }
.qf-btn-block { width: 100%; }

.qf-hero {
    padding: 58px 0 70px;
    position: relative;
    overflow: hidden;
}
.qf-hero::before {
    content: "";
    position: absolute;
    width: 620px;
    height: 620px;
    border-radius: 50%;
    inset-inline-start: -250px;
    inset-block-start: -260px;
    background: radial-gradient(circle, rgba(243,107,33,.13), rgba(243,107,33,0) 70%);
}
.qf-hero-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 64px;
}
.qf-eyebrow {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    gap: 6px;
    color: var(--qf-primary-dark);
    background: var(--qf-primary-soft);
    border: 1px solid #ffd5bd;
    border-radius: 999px;
    padding: 7px 12px;
    font-size: 13px;
    font-weight: 800;
}
.qf-hero-copy h1 {
    margin: 18px 0 18px;
    font-size: clamp(42px, 5vw, 68px);
    line-height: 1.12;
    letter-spacing: -2.5px;
    color: var(--qf-navy);
}
.qf-hero-copy h1 span { color: var(--qf-primary); }
.qf-hero-copy > p {
    font-size: 18px;
    line-height: 1.9;
    color: var(--qf-muted);
    max-width: 680px;
}
.qf-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.qf-trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 26px;
    color: #4f5260;
    font-size: 13px;
    font-weight: 700;
}
.qf-hero-visual {
    min-height: 470px;
    position: relative;
    display: grid;
    place-items: center;
}
.qf-hero-dashboard {
    width: min(100%, 470px);
    background: rgba(255,255,255,.96);
    border: 1px solid var(--qf-border);
    border-radius: 30px;
    box-shadow: var(--qf-shadow);
    padding: 24px;
    transform: rotate(-1.5deg);
    position: relative;
}
.qf-mini-top { display: flex; align-items: center; justify-content: space-between; }
.qf-mini-logo { font-weight: 900; color: var(--qf-navy); font-size: 22px; }
.qf-mini-pill { font-size: 11px; color: var(--qf-green); background: var(--qf-green-soft); padding: 7px 10px; border-radius: 999px; font-weight: 800; }
.qf-mini-score {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 30px 0;
    padding: 20px;
    background: linear-gradient(135deg, #fff7ee, #fff);
    border-radius: 20px;
}
.qf-mini-score small { display: block; color: var(--qf-muted); margin-bottom: 8px; }
.qf-mini-score strong { font-size: 42px; color: var(--qf-navy); }
.qf-ring {
    width: 88px; height: 88px; border-radius: 50%;
    display: grid; place-items: center;
    background: conic-gradient(var(--qf-primary) 82%, #f1e5d9 0);
    position: relative;
}
.qf-ring::after {
    content: ""; position: absolute; width: 66px; height: 66px; border-radius: 50%; background: #fff;
}
.qf-ring span { position: relative; z-index: 1; font-weight: 900; color: var(--qf-navy); }
.qf-mini-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.qf-mini-cards div { padding: 14px; border: 1px solid var(--qf-border); border-radius: 14px; text-align: center; }
.qf-mini-cards b { display: block; font-size: 22px; color: var(--qf-navy); }
.qf-mini-cards small { color: var(--qf-muted); }
.qf-mini-bars { display: grid; gap: 8px; margin-top: 22px; }
.qf-mini-bars span { display: block; width: var(--w); height: 8px; border-radius: 99px; background: linear-gradient(90deg,var(--qf-primary),#ffb277); }
.qf-float-card {
    position: absolute;
    background: #fff;
    border: 1px solid var(--qf-border);
    box-shadow: var(--qf-shadow-sm);
    border-radius: 14px;
    padding: 11px 14px;
    font-weight: 800;
    font-size: 12px;
}
.qf-float-a { inset-inline-start: -12px; inset-block-start: 58px; }
.qf-float-b { inset-inline-end: -10px; inset-block-start: 160px; }
.qf-float-c { inset-inline-start: 35px; inset-block-end: 46px; }

.qf-section { padding: 78px 0; }
.qf-section-tight { padding: 52px 0; }
.qf-section-soft { background: #fff7ef; border-block: 1px solid #f1e3d6; }
.qf-section-head { max-width: 780px; margin: 0 auto 34px; text-align: center; }
.qf-section-head h2,
.qf-story-panel h2,
.qf-card h2,
.qf-cta-box h2 {
    color: var(--qf-navy);
    margin: 14px 0 10px;
    font-size: clamp(28px, 3vw, 40px);
    letter-spacing: -1.2px;
}
.qf-section-head p { color: var(--qf-muted); line-height: 1.8; }
.qf-section-head-inline {
    max-width: none;
    display: flex;
    justify-content: space-between;
    align-items: end;
    text-align: start;
}

.qf-feature-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.qf-feature-card {
    background: #fff;
    border: 1px solid var(--qf-border);
    border-radius: var(--qf-radius-md);
    padding: 24px;
    box-shadow: var(--qf-shadow-sm);
}
.qf-feature-icon {
    width: 48px; height: 48px; display: grid; place-items: center;
    background: var(--qf-primary-soft); border-radius: 14px; font-size: 23px;
}
.qf-feature-card h3 { margin: 18px 0 8px; color: var(--qf-navy); font-size: 18px; }
.qf-feature-card p { margin: 0; color: var(--qf-muted); line-height: 1.75; font-size: 14px; }

.qf-split { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.qf-story-panel, .qf-card {
    background: #fff;
    border: 1px solid var(--qf-border);
    border-radius: var(--qf-radius);
    padding: 32px;
    box-shadow: var(--qf-shadow-sm);
}
.qf-student-panel { background: linear-gradient(145deg, #fff, #fff7ef); }
.qf-teacher-panel { background: linear-gradient(145deg, #fff, #f3fbf6); }
.qf-story-panel p, .qf-card p { color: var(--qf-muted); line-height: 1.85; }
.qf-check-list { list-style: none; padding: 0; margin: 22px 0; display: grid; gap: 12px; }
.qf-check-list li { position: relative; padding-inline-start: 28px; line-height: 1.7; }
.qf-check-list li::before { content: "✓"; position: absolute; inset-inline-start: 0; color: var(--qf-green); font-weight: 900; }
.qf-text-link { color: var(--qf-primary-dark); font-weight: 900; }

.qf-teacher-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.qf-teacher-grid-large { grid-template-columns: repeat(3,1fr); }
.qf-teacher-card {
    background: #fff;
    border: 1px solid var(--qf-border);
    border-radius: 18px;
    padding: 20px;
    display: flex;
    gap: 14px;
    transition: .2s ease;
    box-shadow: var(--qf-shadow-sm);
}
.qf-teacher-card:hover { transform: translateY(-3px); border-color: #f5b48f; }
.qf-teacher-avatar {
    width: 52px; height: 52px; border-radius: 16px; flex: 0 0 auto;
    display: grid; place-items: center; font-size: 22px; font-weight: 900;
    color: #fff; background: linear-gradient(135deg,var(--qf-navy),#294d84);
}
.qf-teacher-avatar-lg { width: 62px; height: 62px; border-radius: 20px; }
.qf-teacher-info { min-width: 0; }
.qf-teacher-name { display: flex; align-items: center; gap: 6px; }
.qf-teacher-name strong { color: var(--qf-navy); }
.qf-verified {
    display: inline-grid; place-items: center;
    width: 18px; height: 18px; border-radius: 50%;
    color: #fff; background: var(--qf-blue); font-size: 11px;
}
.qf-teacher-info p { color: var(--qf-muted); font-size: 13px; line-height: 1.6; margin: 8px 0; }
.qf-rating { color: var(--qf-yellow); font-weight: 900; font-size: 13px; }
.qf-rating span { color: var(--qf-muted); font-weight: 500; }
.qf-teacher-meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--qf-muted); }
.qf-teacher-meta span { background: var(--qf-surface-muted); border-radius: 999px; padding: 5px 8px; }

.qf-cta-box {
    border-radius: 28px;
    padding: 38px 42px;
    background: linear-gradient(135deg, #17233e, #1f345b);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    box-shadow: var(--qf-shadow);
}
.qf-cta-box h2 { color: #fff; }
.qf-cta-box p { color: rgba(255,255,255,.72); line-height: 1.7; }
.qf-cta-box .qf-eyebrow { background: rgba(255,255,255,.08); color: #ffd4bb; border-color: rgba(255,255,255,.12); }

.qf-page-hero { padding: 56px 0 42px; text-align: center; }
.qf-page-hero h1 {
    color: var(--qf-navy);
    font-size: clamp(36px,5vw,56px);
    letter-spacing: -2px;
    margin: 16px auto 14px;
    max-width: 900px;
}
.qf-page-hero p { color: var(--qf-muted); max-width: 760px; margin-inline: auto; line-height: 1.85; }
.qf-search-wide {
    width: min(700px,100%);
    margin: 28px auto 0;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
}
.qf-search-wide input {
    border: 1px solid var(--qf-border);
    background: #fff;
    border-radius: 14px;
    padding: 14px 16px;
    outline: none;
}
.qf-search-wide input:focus { border-color: #f4a476; box-shadow: 0 0 0 4px rgba(243,107,33,.08); }
.qf-pagination { display: flex; justify-content: center; gap: 12px; margin-top: 32px; align-items: center; }
.qf-pagination a, .qf-pagination span {
    border: 1px solid var(--qf-border); background: #fff; border-radius: 10px; padding: 9px 12px;
}
.qf-pagination .is-disabled { opacity: .45; }

.qf-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px 20px;
    border: 1px dashed #d9c9ba;
    background: rgba(255,255,255,.7);
    border-radius: 20px;
}
.qf-empty-state > span { font-size: 34px; }
.qf-empty-state h3 { color: var(--qf-navy); margin: 12px 0 6px; }
.qf-empty-state p { color: var(--qf-muted); }

.qf-teacher-profile-hero { padding: 42px 0 22px; }
.qf-profile-cover {
    background: linear-gradient(135deg, #14213d, #1b3b6b);
    border-radius: 30px;
    padding: 34px;
    color: #fff;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 26px;
    box-shadow: var(--qf-shadow);
}
.qf-profile-avatar-xl {
    width: 112px; height: 112px; border-radius: 28px; display: grid; place-items: center;
    background: linear-gradient(135deg,var(--qf-primary),#ffab73); color: #fff; font-size: 42px; font-weight: 900;
    border: 4px solid rgba(255,255,255,.15);
}
.qf-profile-title { display: flex; align-items: center; gap: 10px; }
.qf-profile-title h1 { font-size: 34px; margin: 0; }
.qf-profile-main > p { color: rgba(255,255,255,.72); line-height: 1.7; }
.qf-verified-lg { width: auto; height: auto; padding: 4px 8px; border-radius: 999px; }
.qf-profile-stats { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 18px; }
.qf-profile-stats div { display: grid; gap: 2px; }
.qf-profile-stats strong { font-size: 18px; }
.qf-profile-stats span { color: rgba(255,255,255,.6); font-size: 11px; }
.qf-profile-actions { display: grid; gap: 10px; min-width: 150px; }
.qf-profile-columns { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
.qf-prose { white-space: pre-line; }
.qf-detail-list { display: grid; gap: 12px; margin-top: 24px; }
.qf-detail-list div { display: flex; justify-content: space-between; border-bottom: 1px solid var(--qf-border); padding-bottom: 10px; }
.qf-detail-list span { color: var(--qf-muted); }

.qf-pricing-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; align-items: stretch; }
.qf-price-card {
    background: #fff; border: 1px solid var(--qf-border); border-radius: 24px;
    padding: 28px; box-shadow: var(--qf-shadow-sm);
}
.qf-price-card.is-featured { border: 2px solid var(--qf-primary); transform: translateY(-8px); }
.qf-price-badge { color: var(--qf-primary-dark); font-weight: 900; font-size: 12px; background: var(--qf-primary-soft); padding: 6px 9px; border-radius: 999px; }
.qf-price-card h2 { color: var(--qf-navy); font-size: 28px; margin: 18px 0; }
.qf-price-line { display: grid; gap: 4px; min-height: 70px; }
.qf-price-line strong { font-size: 30px; color: var(--qf-navy); }
.qf-price-line span { color: var(--qf-muted); font-size: 13px; }
.qf-contact-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }

.qf-auth-section { padding: 70px 0; min-height: calc(100vh - 76px); display: grid; place-items: center; }
.qf-auth-card {
    width: min(940px,100%);
    margin-inline: auto;
    background: #fff;
    border: 1px solid var(--qf-border);
    border-radius: 30px;
    box-shadow: var(--qf-shadow);
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    overflow: hidden;
}
.qf-auth-copy { padding: 48px; background: linear-gradient(135deg,#fff7ef,#fff); }
.qf-auth-copy h1 { color: var(--qf-navy); font-size: 42px; letter-spacing: -1.5px; margin: 18px 0; }
.qf-auth-copy p { color: var(--qf-muted); line-height: 1.8; }
.qf-auth-points { display: grid; gap: 10px; margin-top: 28px; }
.qf-auth-points span { background: rgba(255,255,255,.8); border: 1px solid var(--qf-border); border-radius: 12px; padding: 12px; font-weight: 700; }
.qf-login-form { padding: 48px; display: flex; flex-direction: column; justify-content: center; }
.qf-login-form h2 { color: var(--qf-navy); font-size: 30px; margin: 0 0 6px; }
.qf-login-form > p { color: var(--qf-muted); margin: 0 0 24px; }
.qf-login-form label { display: grid; gap: 8px; margin-bottom: 16px; font-weight: 700; }
.qf-login-form label span { font-size: 13px; color: #474a57; }
.qf-login-form input {
    border: 1px solid var(--qf-border);
    border-radius: 12px;
    min-height: 48px;
    padding: 12px 14px;
    outline: none;
    background: #fffdfa;
}
.qf-login-form input:focus { border-color: var(--qf-primary); box-shadow: 0 0 0 4px rgba(243,107,33,.08); }
.qf-form-error { color: #9d2626; background: #fff0f0; border: 1px solid #f4c4c4; padding: 10px 12px; border-radius: 10px; margin-bottom: 14px; font-size: 13px; }
.qf-login-help { display: flex; justify-content: center; gap: 6px; margin-top: 18px; color: var(--qf-muted); font-size: 13px; }
.qf-link-button { border: 0; background: none; color: var(--qf-primary-dark); font-weight: 900; padding: 0; }

.qf-footer { background: #111a2e; color: #fff; margin-top: 20px; padding: 52px 0 20px; }
.qf-footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 30px; }
.qf-footer-brand { color: #fff; }
.qf-footer p { color: rgba(255,255,255,.6); max-width: 420px; line-height: 1.8; }
.qf-footer h3 { margin: 0 0 14px; font-size: 14px; }
.qf-footer a { display: block; color: rgba(255,255,255,.65); margin: 9px 0; font-size: 13px; }
.qf-footer a:hover { color: #fff; }
.qf-footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 34px; padding-top: 18px; display: flex; justify-content: space-between; color: rgba(255,255,255,.45); font-size: 12px; }

/* Portal */
.qf-portal-body { background: #f7f4ef; min-height: 100vh; }
.qf-app-shell { min-height: 100vh; display: grid; grid-template-columns: var(--qf-sidebar) 1fr; direction: rtl; }
.qf-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: #fff;
    border-inline-end: 1px solid var(--qf-border);
    padding: 22px 16px;
    display: flex;
    flex-direction: column;
    z-index: 40;
}
.qf-sidebar-head { display: flex; justify-content: space-between; align-items: center; padding: 0 8px 20px; }
.qf-sidebar-close { display: none; border: 0; background: none; font-size: 24px; }
.qf-profile-chip {
    display: flex; align-items: center; gap: 10px;
    background: var(--qf-surface-soft);
    border: 1px solid #f1dfcf;
    padding: 12px;
    border-radius: 16px;
    margin-bottom: 18px;
}
.qf-avatar {
    width: 42px; height: 42px; border-radius: 13px;
    display: grid; place-items: center; background: linear-gradient(135deg,var(--qf-navy),#294d84); color: #fff; font-weight: 900;
}
.qf-profile-chip strong { display: block; font-size: 13px; color: var(--qf-navy); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 150px; }
.qf-profile-chip small { color: var(--qf-muted); font-size: 11px; }
.qf-side-nav { display: grid; gap: 4px; overflow-y: auto; padding-inline: 2px; }
.qf-side-link {
    min-height: 44px;
    border: 0;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 11px;
    border-radius: 12px;
    padding: 10px 12px;
    color: #4f5260;
    font-size: 13px;
    font-weight: 700;
    background: transparent;
    text-align: start;
}
.qf-side-link span {
    width: 26px; height: 26px; border-radius: 8px;
    display: grid; place-items: center; color: var(--qf-navy);
    background: #f6f3ef;
}
.qf-side-link:hover { background: #faf7f3; color: var(--qf-navy); }
.qf-side-link.is-active { background: var(--qf-primary-soft); color: var(--qf-primary-dark); }
.qf-side-link.is-active span { color: #fff; background: var(--qf-primary); }
.qf-side-divider { height: 1px; background: var(--qf-border); margin: 8px 10px; }
.qf-side-bottom { margin-top: auto; display: grid; gap: 4px; padding-top: 16px; border-top: 1px solid var(--qf-border); }

.qf-app-main { min-width: 0; }
.qf-topbar {
    min-height: 78px;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--qf-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    position: sticky;
    top: 0;
    z-index: 30;
}
.qf-topbar-title { display: flex; align-items: center; gap: 12px; }
.qf-topbar-title h1 { font-size: 20px; color: var(--qf-navy); margin: 0; }
.qf-topbar-title p { margin: 4px 0 0; color: var(--qf-muted); font-size: 12px; }
.qf-top-actions { display: flex; align-items: center; gap: 8px; }
.qf-icon-btn {
    width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--qf-border);
    background: #fff; display: grid; place-items: center; color: var(--qf-navy); font-weight: 900;
}
.qf-sidebar-open { display: none; }
.qf-connection-dot {
    width: 10px; height: 10px; border-radius: 50%; background: #bbb; box-shadow: 0 0 0 4px rgba(0,0,0,.04);
}
.qf-connection-dot.is-online { background: var(--qf-green); box-shadow: 0 0 0 4px rgba(58,166,117,.12); }
.qf-connection-dot.is-offline { background: var(--qf-red); box-shadow: 0 0 0 4px rgba(215,85,85,.12); }
.qf-page-wrap { padding: 24px; max-width: 1500px; margin-inline: auto; }
.qf-page-alert { padding: 12px 14px; border-radius: 12px; margin-bottom: 16px; background: #fff3e7; border: 1px solid #ffd2ae; color: #8b480d; font-size: 13px; }

.qf-stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-bottom: 18px; }
.qf-stat-card {
    background: #fff; border: 1px solid var(--qf-border); border-radius: 17px; padding: 18px;
    box-shadow: var(--qf-shadow-sm); min-width: 0;
}
.qf-stat-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.qf-stat-icon {
    width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
    background: var(--qf-primary-soft); color: var(--qf-primary-dark); font-weight: 900;
}
.qf-stat-card small { color: var(--qf-muted); }
.qf-stat-card strong { display: block; margin-top: 12px; font-size: 26px; color: var(--qf-navy); }
.qf-stat-foot { margin-top: 8px; font-size: 11px; color: var(--qf-muted); }
.qf-stat-foot .good { color: var(--qf-green); font-weight: 900; }

.qf-dashboard-grid { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(320px,.8fr); gap: 18px; }
.qf-panel {
    background: #fff; border: 1px solid var(--qf-border); border-radius: 18px;
    box-shadow: var(--qf-shadow-sm); overflow: hidden;
}
.qf-panel-head { padding: 18px 20px; border-bottom: 1px solid var(--qf-border); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.qf-panel-head h2 { margin: 0; color: var(--qf-navy); font-size: 16px; }
.qf-panel-head p { margin: 4px 0 0; color: var(--qf-muted); font-size: 11px; }
.qf-panel-body { padding: 18px 20px; }
.qf-panel-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.qf-action-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.qf-action-card {
    border: 1px solid var(--qf-border);
    border-radius: 15px;
    padding: 16px;
    background: linear-gradient(145deg,#fff,#fffcf8);
}
.qf-action-card strong { color: var(--qf-navy); display: block; margin-bottom: 6px; }
.qf-action-card p { color: var(--qf-muted); font-size: 12px; line-height: 1.6; margin: 0 0 12px; }
.qf-action-card button, .qf-action-card a { color: var(--qf-primary-dark); font-weight: 900; font-size: 12px; border: 0; background: none; padding: 0; }

.qf-list { display: grid; gap: 10px; }
.qf-list-item {
    border: 1px solid var(--qf-border);
    border-radius: 13px;
    padding: 12px 14px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}
.qf-list-main { min-width: 0; }
.qf-list-main strong { display: block; color: var(--qf-navy); font-size: 13px; }
.qf-list-main span { display: block; color: var(--qf-muted); font-size: 11px; margin-top: 4px; }
.qf-badge {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px; padding: 5px 9px; font-size: 10px; font-weight: 900; white-space: nowrap;
    background: #f3f1ed; color: #5a5d68;
}
.qf-badge.orange { background: var(--qf-primary-soft); color: var(--qf-primary-dark); }
.qf-badge.green { background: var(--qf-green-soft); color: #1c7951; }
.qf-badge.red { background: #fff0f0; color: #aa3939; }
.qf-badge.blue { background: #edf3ff; color: #2f5fb7; }
.qf-badge.yellow { background: #fff7dc; color: #8b6412; }

.qf-progress-block { display: grid; gap: 15px; }
.qf-progress-row { display: grid; gap: 7px; }
.qf-progress-label { display: flex; justify-content: space-between; gap: 12px; font-size: 12px; }
.qf-progress-label span { color: var(--qf-muted); }
.qf-progress-label strong { color: var(--qf-navy); }
.qf-progress-track { height: 9px; border-radius: 999px; background: #eee8e1; overflow: hidden; }
.qf-progress-track i { display: block; width: var(--value,0%); height: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--qf-primary),#ffaf75); }

.qf-chart-box { min-height: 220px; display: flex; align-items: end; gap: 10px; padding: 24px 10px 8px; border-bottom: 1px solid var(--qf-border); }
.qf-chart-bar {
    flex: 1; min-width: 18px; height: var(--h,30%);
    background: linear-gradient(180deg,var(--qf-primary),#ffb27f);
    border-radius: 8px 8px 2px 2px;
    position: relative;
}
.qf-chart-bar::after {
    content: attr(data-label); position: absolute; inset-block-start: calc(100% + 8px); inset-inline: 0; text-align: center; font-size: 9px; color: var(--qf-muted);
}

.qf-table-wrap { overflow-x: auto; }
.qf-table { width: 100%; border-collapse: collapse; min-width: 740px; }
.qf-table th, .qf-table td { padding: 12px 10px; text-align: start; border-bottom: 1px solid var(--qf-border); font-size: 12px; }
.qf-table th { color: var(--qf-muted); font-weight: 700; background: #fdfaf6; }
.qf-table td { color: #3e414d; }
.qf-table strong { color: var(--qf-navy); }
.qf-table tr:hover td { background: #fffaf6; }

.qf-toolbar {
    display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
    margin-bottom: 16px;
}
.qf-toolbar-group { display: flex; flex-wrap: wrap; gap: 8px; }
.qf-input, .qf-select, .qf-textarea {
    min-height: 42px; border: 1px solid var(--qf-border); border-radius: 11px; background: #fff; padding: 9px 12px; outline: none; color: var(--qf-text);
}
.qf-input:focus, .qf-select:focus, .qf-textarea:focus { border-color: var(--qf-primary); box-shadow: 0 0 0 4px rgba(243,107,33,.07); }
.qf-input { min-width: 220px; }
.qf-textarea { min-height: 100px; resize: vertical; width: 100%; }

.qf-cards-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.qf-data-card {
    background: #fff; border: 1px solid var(--qf-border); border-radius: 16px; padding: 18px; box-shadow: var(--qf-shadow-sm);
}
.qf-data-card h3 { color: var(--qf-navy); margin: 0 0 8px; font-size: 15px; }
.qf-data-card p { color: var(--qf-muted); font-size: 12px; line-height: 1.7; }
.qf-data-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.qf-data-footer { display: flex; justify-content: space-between; gap: 10px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--qf-border); }

.qf-kanban { display: grid; grid-template-columns: repeat(5,minmax(240px,1fr)); gap: 12px; overflow-x: auto; padding-bottom: 8px; }
.qf-kanban-col { background: #f5f1ec; border: 1px solid var(--qf-border); border-radius: 16px; padding: 12px; min-height: 440px; }
.qf-kanban-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.qf-kanban-head strong { font-size: 12px; color: var(--qf-navy); }
.qf-kanban-list { display: grid; gap: 10px; }
.qf-lead-card { background: #fff; border: 1px solid var(--qf-border); border-radius: 13px; padding: 13px; box-shadow: 0 5px 15px rgba(30,34,45,.04); }
.qf-lead-card strong { display: block; color: var(--qf-navy); font-size: 12px; }
.qf-lead-card p { color: var(--qf-muted); font-size: 10px; line-height: 1.6; }
.qf-lead-card footer { display: flex; justify-content: space-between; gap: 8px; font-size: 9px; color: var(--qf-muted); }

.qf-empty-panel { padding: 44px 20px; text-align: center; color: var(--qf-muted); }
.qf-empty-panel span { font-size: 30px; }
.qf-empty-panel h3 { color: var(--qf-navy); margin: 10px 0 5px; }

.qf-loading-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.qf-skeleton { border-radius: 17px; background: linear-gradient(90deg,#eee8e0 25%,#faf6f1 50%,#eee8e0 75%); background-size: 200% 100%; animation: qf-shimmer 1.3s infinite linear; }
.qf-skeleton-stat { height: 120px; }
.qf-skeleton-panel { height: 320px; grid-column: span 2; }
@keyframes qf-shimmer { to { background-position: -200% 0; } }

.qf-modal-backdrop {
    position: fixed; inset: 0; z-index: 100;
    background: rgba(17,26,46,.45); backdrop-filter: blur(5px);
    display: grid; place-items: center; padding: 20px;
}
.qf-modal {
    width: min(620px,100%); max-height: calc(100vh - 40px); overflow: auto;
    background: #fff; border-radius: 22px; border: 1px solid var(--qf-border); box-shadow: var(--qf-shadow);
}
.qf-modal-head { padding: 18px 20px; border-bottom: 1px solid var(--qf-border); display: flex; justify-content: space-between; align-items: center; }
.qf-modal-head h3 { margin: 0; color: var(--qf-navy); }
.qf-modal-close { border: 0; background: #f5f1ec; border-radius: 9px; width: 34px; height: 34px; }
.qf-modal-body { padding: 20px; }
.qf-form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.qf-form-field { display: grid; gap: 6px; }
.qf-form-field.full { grid-column: 1/-1; }
.qf-form-field label { font-size: 12px; font-weight: 800; color: #454854; }
.qf-modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }

.qf-toast-stack { position: fixed; z-index: 200; inset-inline-end: 18px; inset-block-end: 18px; display: grid; gap: 8px; }
.qf-toast {
    min-width: 260px; max-width: 390px;
    background: #18233e; color: #fff; border-radius: 13px; padding: 12px 14px;
    box-shadow: var(--qf-shadow); font-size: 12px; animation: qf-toast-in .22s ease;
}
.qf-toast.error { background: #8f3434; }
.qf-toast.success { background: #22734f; }
@keyframes qf-toast-in { from { transform: translateY(8px); opacity: 0; } }

@media (max-width: 1100px) {
    .qf-feature-grid { grid-template-columns: repeat(2,1fr); }
    .qf-teacher-grid, .qf-teacher-grid-large { grid-template-columns: repeat(2,1fr); }
    .qf-stats-grid { grid-template-columns: repeat(2,1fr); }
    .qf-cards-grid { grid-template-columns: repeat(2,1fr); }
    .qf-dashboard-grid { grid-template-columns: 1fr; }
    .qf-action-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 900px) {
    .qf-nav-inner { grid-template-columns: auto 1fr auto; }
    .qf-main-links { display: none; position: absolute; inset-inline: 18px; inset-block-start: 70px; background: #fff; border: 1px solid var(--qf-border); border-radius: 16px; padding: 12px; box-shadow: var(--qf-shadow); flex-direction: column; align-items: stretch; }
    .qf-main-links.is-open { display: flex; }
    .qf-nav-actions { margin-inline-start: auto; }
    .qf-mobile-menu { display: block; }
    .qf-hero-grid { grid-template-columns: 1fr; }
    .qf-hero-visual { min-height: 420px; }
    .qf-profile-cover { grid-template-columns: auto 1fr; }
    .qf-profile-actions { grid-column: 1/-1; grid-template-columns: repeat(2,1fr); }
    .qf-profile-columns { grid-template-columns: 1fr; }
    .qf-pricing-grid { grid-template-columns: 1fr; }
    .qf-price-card.is-featured { transform: none; }
    .qf-contact-grid { grid-template-columns: 1fr; }
    .qf-auth-card { grid-template-columns: 1fr; }
    .qf-auth-copy { display: none; }

    .qf-app-shell { grid-template-columns: 1fr; }
    .qf-sidebar {
        position: fixed; inset-block: 0; inset-inline-start: auto; inset-inline-end: 0;
        width: min(var(--qf-sidebar), calc(100vw - 42px));
        transform: translateX(110%); transition: transform .22s ease;
        box-shadow: var(--qf-shadow);
    }
    .qf-sidebar.is-open { transform: translateX(0); }
    .qf-sidebar-close, .qf-sidebar-open { display: grid; }
}

@media (max-width: 680px) {
    .qf-container { width: min(100% - 24px,1180px); }
    .qf-nav-actions .qf-btn-ghost { display: none; }
    .qf-brand { font-size: 24px; }
    .qf-hero { padding-top: 38px; }
    .qf-hero-copy h1 { font-size: 42px; }
    .qf-hero-copy > p { font-size: 16px; }
    .qf-hero-actions { display: grid; }
    .qf-hero-visual { min-height: 390px; }
    .qf-float-card { display: none; }
    .qf-section { padding: 54px 0; }
    .qf-feature-grid, .qf-split, .qf-teacher-grid, .qf-teacher-grid-large { grid-template-columns: 1fr; }
    .qf-section-head-inline { display: grid; gap: 14px; }
    .qf-cta-box { display: grid; padding: 28px; }
    .qf-footer-grid { grid-template-columns: repeat(2,1fr); }
    .qf-footer-grid > div:first-child { grid-column: 1/-1; }
    .qf-footer-bottom { display: grid; gap: 8px; }
    .qf-profile-cover { grid-template-columns: 1fr; text-align: center; justify-items: center; padding: 24px; }
    .qf-profile-title { justify-content: center; }
    .qf-profile-stats { justify-content: center; }
    .qf-profile-actions { width: 100%; grid-template-columns: 1fr; }
    .qf-search-wide { grid-template-columns: 1fr; }

    .qf-topbar { padding: 12px 14px; }
    .qf-topbar-title p { display: none; }
    .qf-page-wrap { padding: 14px; }
    .qf-stats-grid, .qf-loading-grid { grid-template-columns: 1fr 1fr; }
    .qf-skeleton-panel { grid-column: 1/-1; }
    .qf-action-grid, .qf-cards-grid { grid-template-columns: 1fr; }
    .qf-form-grid { grid-template-columns: 1fr; }
    .qf-form-field.full { grid-column: auto; }
    .qf-toolbar { display: grid; }
    .qf-toolbar-group { display: grid; grid-template-columns: 1fr; }
    .qf-input, .qf-select { width: 100%; min-width: 0; }
}

@media (max-width: 430px) {
    .qf-stats-grid { grid-template-columns: 1fr; }
    .qf-profile-stats { display: grid; grid-template-columns: repeat(2,1fr); width: 100%; }
}