/* ============================================================
   TadqiqotMaktabi.uz — Modern SaaS Landing (v4, light)
   Bright, airy, vibrant gradient accents. Stripe/Linear-light.
   ============================================================ */

:root {
    --bg:        #F7F9FE;
    --bg-soft:   #FFFFFF;
    --panel:     #FFFFFF;
    --panel-2:   #F1F4FB;
    --line:      rgba(15, 23, 42, 0.10);
    --line-soft: rgba(15, 23, 42, 0.06);

    --text:      #0F172A;
    --text-2:    #475569;
    --muted:     #8B95A8;

    --indigo:    #6366F1;
    --violet:    #8B5CF6;
    --cyan:      #06B6D4;
    --emerald:   #10B981;

    --grad: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #06B6D4 100%);

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05), 0 4px 14px -4px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.05), 0 14px 34px -12px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 4px 10px rgba(15, 23, 42, 0.05), 0 30px 70px -24px rgba(15, 23, 42, 0.18);

    --container: 1200px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::selection { background: rgba(99, 102, 241, 0.25); }

.wrap { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Background field ---------- */
.bg-stage {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background:
        radial-gradient(ellipse 70% 45% at 50% -8%, rgba(99, 102, 241, 0.14), transparent 60%),
        radial-gradient(ellipse 45% 35% at 90% 10%, rgba(6, 182, 212, 0.10), transparent 60%),
        radial-gradient(ellipse 50% 40% at 5% 85%, rgba(139, 92, 246, 0.08), transparent 60%),
        var(--bg);
}
.bg-stage::before {
    /* fine grid */
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(15, 23, 42, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 25%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 25%, transparent 75%);
}

/* ---------- Typography ---------- */
.h-display {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.06;
    margin: 0;
    color: var(--text);
}
h1.h-display { font-size: clamp(2.6rem, 6.4vw, 4.4rem); }
h2.h-display { font-size: clamp(1.9rem, 4vw, 2.9rem); }

.grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lede {
    font-size: clamp(1.02rem, 1.5vw, 1.18rem);
    color: var(--text-2);
    max-width: 58ch;
    line-height: 1.7;
}

/* ---------- Pills & badges ---------- */
.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.42rem 0.95rem;
    border-radius: 999px;
    border: 1px solid rgba(99, 102, 241, 0.25);
    background: rgba(99, 102, 241, 0.07);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--indigo);
}
.pill .spark {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 8px rgba(6, 182, 212, 0.8);
    animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border-radius: 10px;
    padding: 0.78rem 1.45rem;
    border: 1px solid transparent;
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
        background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.btn-grad {
    background: linear-gradient(135deg, #6366F1, #7C5CF6);
    color: #fff;
    box-shadow: 0 8px 24px -6px rgba(99, 102, 241, 0.45);
}
.btn-grad:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 34px -6px rgba(99, 102, 241, 0.55);
    color: #fff;
}
.btn-ghost {
    background: #fff;
    border-color: var(--line);
    color: var(--text);
    box-shadow: var(--shadow-sm);
}
.btn-ghost:hover {
    border-color: rgba(99, 102, 241, 0.45);
    color: var(--indigo);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn-lg { padding: 0.95rem 1.8rem; font-size: 1rem; border-radius: 12px; }

/* ---------- Topbar ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: rgba(247, 249, 254, 0.75);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.topbar.is-scrolled {
    background: rgba(255, 255, 255, 0.88);
    border-bottom-color: var(--line-soft);
    box-shadow: 0 6px 24px -12px rgba(15, 23, 42, 0.12);
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.12rem;
    letter-spacing: -0.02em;
}
.logo .logo-mark {
    width: 32px; height: 32px;
    border-radius: 9px;
    background: var(--grad);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.95rem;
    box-shadow: 0 4px 14px -2px rgba(99, 102, 241, 0.45);
}
.nav-center {
    display: flex;
    gap: 0.25rem;
    padding: 0.3rem;
    border: 1px solid var(--line-soft);
    border-radius: 999px;
    background: #fff;
    box-shadow: var(--shadow-sm);
}
.nav-center a {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.42rem 1rem;
    border-radius: 999px;
    transition: color 0.2s, background 0.2s;
}
.nav-center a:hover {
    color: var(--indigo);
    background: rgba(99, 102, 241, 0.07);
}
.topbar-cta { display: flex; align-items: center; gap: 0.75rem; }
.link-quiet {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: color 0.2s;
}
.link-quiet:hover { color: var(--text); }

/* ---------- Hero ---------- */
.hero {
    padding: clamp(4rem, 9vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
    text-align: center;
    position: relative;
}
.hero .pill { margin-bottom: 1.6rem; }
.hero h1 { margin: 0 auto 1.4rem; max-width: 17ch; }
.hero .lede { margin: 0 auto 2.4rem; }
.hero-actions {
    display: flex;
    gap: 0.9rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3.2rem;
}

/* ---------- Hero app mockup ---------- */
.app-frame {
    max-width: 980px;
    margin: 0 auto;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: #fff;
    box-shadow:
        var(--shadow-lg),
        0 0 90px -20px rgba(99, 102, 241, 0.25);
    overflow: hidden;
    position: relative;
}
.app-frame::before {
    /* top accent line */
    content: '';
    position: absolute;
    top: 0; left: 10%; right: 10%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.7), rgba(6, 182, 212, 0.7), transparent);
    z-index: 1;
}
.app-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.1rem;
    border-bottom: 1px solid var(--line-soft);
    background: var(--panel-2);
}
.app-bar .dot { width: 10px; height: 10px; border-radius: 50%; }
.app-bar .addr {
    margin-left: 0.8rem;
    flex: 1;
    max-width: 320px;
    font-size: 0.72rem;
    color: var(--muted);
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 7px;
    padding: 0.3rem 0.8rem;
    text-align: center;
}
.app-body {
    display: grid;
    grid-template-columns: 200px 1fr;
    min-height: 360px;
    text-align: left;
}
.app-side {
    border-right: 1px solid var(--line-soft);
    padding: 1rem 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    background: #FBFCFF;
}
.app-side .s-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.7rem;
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-2);
}
.app-side .s-item.on {
    background: rgba(99, 102, 241, 0.10);
    color: var(--indigo);
    font-weight: 600;
    box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.18) inset;
}
.app-side .s-item i { font-size: 0.85rem; }
.app-main { padding: 1.3rem 1.4rem; }
.app-main .am-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.1rem;
}
.app-main .am-title b {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.02rem;
    letter-spacing: -0.01em;
}
.chipx {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.22rem 0.6rem;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.10);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.3);
}
.kpi-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
    margin-bottom: 1rem;
}
.kpi {
    border: 1px solid var(--line-soft);
    background: #FBFCFF;
    border-radius: 12px;
    padding: 0.85rem 0.95rem;
}
.kpi small {
    display: block;
    color: var(--muted);
    font-size: 0.68rem;
    margin-bottom: 0.25rem;
}
.kpi b {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: var(--text);
}
.kpi .up { color: #059669; font-size: 0.68rem; margin-left: 0.4rem; font-weight: 600; }
.bars {
    display: flex;
    align-items: flex-end;
    gap: 7px;
    height: 110px;
    padding: 1rem;
    border: 1px solid var(--line-soft);
    background: #FBFCFF;
    border-radius: 12px;
}
.bars span {
    flex: 1;
    border-radius: 4px 4px 2px 2px;
    background: linear-gradient(180deg, #818CF8, #C7D2FE);
    min-height: 12%;
    animation: barGrow 1.2s var(--ease) both;
}
.bars span:nth-child(3n) { background: linear-gradient(180deg, #22D3EE, #A5F3FC); }
.bars span:nth-child(4n) { background: linear-gradient(180deg, #A78BFA, #DDD6FE); }
@keyframes barGrow { from { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Stats strip ---------- */
.stats-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    max-width: 760px;
    margin: 3rem auto 0;
}
.stats-strip .st {
    padding: 1.4rem 1rem;
    text-align: center;
    border-right: 1px solid var(--line-soft);
}
.stats-strip .st:last-child { border-right: none; }
.stats-strip b {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stats-strip span { font-size: 0.84rem; color: var(--muted); }

/* ---------- Sections ---------- */
.section { padding: clamp(4rem, 8vw, 6.5rem) 0; position: relative; }
.sec-head { text-align: center; margin-bottom: 3.2rem; }
.sec-head .pill { margin-bottom: 1.2rem; }
.sec-head p { color: var(--text-2); max-width: 54ch; margin: 1rem auto 0; }

/* ---------- Bento grid ---------- */
.bento {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}
.b-card {
    grid-column: span 2;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow-sm);
    padding: 1.7rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.b-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 24px 50px -20px rgba(99, 102, 241, 0.28);
}
.b-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(99, 102, 241, 0.07), transparent 55%);
    opacity: 0;
    transition: opacity 0.35s var(--ease);
    pointer-events: none;
}
.b-card:hover::after { opacity: 1; }
.b-card.wide { grid-column: span 3; }
.b-icon {
    width: 46px; height: 46px;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 1.1rem;
    background: linear-gradient(135deg, #6366F1, #818CF8);
    color: #fff;
    box-shadow: 0 8px 18px -6px rgba(99, 102, 241, 0.5);
}
.b-card.c-cyan .b-icon { background: linear-gradient(135deg, #06B6D4, #22D3EE); box-shadow: 0 8px 18px -6px rgba(6, 182, 212, 0.5); }
.b-card.c-violet .b-icon { background: linear-gradient(135deg, #8B5CF6, #A78BFA); box-shadow: 0 8px 18px -6px rgba(139, 92, 246, 0.5); }
.b-card.c-emerald .b-icon { background: linear-gradient(135deg, #10B981, #34D399); box-shadow: 0 8px 18px -6px rgba(16, 185, 129, 0.5); }
.b-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin: 0 0 0.5rem;
    color: var(--text);
}
.b-card p { margin: 0; font-size: 0.93rem; color: var(--text-2); line-height: 1.6; }

/* ---------- Roles ---------- */
.roles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
.role-card {
    border-radius: 18px;
    border: 1px solid var(--line);
    padding: 1.8rem;
    background: #fff;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.role-card:hover { transform: translateY(-4px); }
.role-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
}
.role-card.r1::before { background: linear-gradient(90deg, #10B981, #34D399); }
.role-card.r2::before { background: linear-gradient(90deg, #6366F1, #818CF8); }
.role-card.r3::before { background: linear-gradient(90deg, #06B6D4, #22D3EE); }
.role-card.r1:hover { border-color: rgba(16, 185, 129, 0.4); box-shadow: 0 24px 50px -20px rgba(16, 185, 129, 0.3); }
.role-card.r2:hover { border-color: rgba(99, 102, 241, 0.4); box-shadow: 0 24px 50px -20px rgba(99, 102, 241, 0.3); }
.role-card.r3:hover { border-color: rgba(6, 182, 212, 0.4); box-shadow: 0 24px 50px -20px rgba(6, 182, 212, 0.3); }
.role-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}
.r1 .role-tag { background: rgba(16, 185, 129, 0.10); color: #059669; }
.r2 .role-tag { background: rgba(99, 102, 241, 0.10); color: var(--indigo); }
.r3 .role-tag { background: rgba(6, 182, 212, 0.10); color: #0891B2; }
.role-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
    color: var(--text);
}
.role-card ul { list-style: none; margin: 0; padding: 0; }
.role-card li {
    display: flex;
    gap: 0.65rem;
    align-items: baseline;
    padding: 0.5rem 0;
    color: var(--text-2);
    font-size: 0.92rem;
    border-top: 1px solid var(--line-soft);
}
.role-card li i { font-size: 0.8rem; }
.r1 li i { color: #10B981; }
.r2 li i { color: var(--indigo); }
.r3 li i { color: #06B6D4; }

/* ---------- Steps ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
.step {
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow-sm);
    padding: 1.6rem 1.4rem;
    position: relative;
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.step:hover {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-md);
}
.step .s-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.1em;
}
.step h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.08rem;
    font-weight: 600;
    margin: 0.7rem 0 0.4rem;
    color: var(--text);
}
.step p { margin: 0; font-size: 0.88rem; color: var(--text-2); }

/* ---------- CTA ---------- */
.cta {
    border-radius: 24px;
    background:
        radial-gradient(ellipse 60% 90% at 20% 110%, rgba(6, 182, 212, 0.35), transparent 55%),
        radial-gradient(ellipse 60% 80% at 85% -10%, rgba(139, 92, 246, 0.4), transparent 55%),
        linear-gradient(135deg, #6366F1, #7C5CF6);
    text-align: center;
    padding: clamp(3.5rem, 7vw, 5.5rem) 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 70px -24px rgba(99, 102, 241, 0.55);
}
.cta h2 { margin-bottom: 1rem; color: #fff; }
.cta p { color: rgba(255, 255, 255, 0.85); max-width: 50ch; margin: 0 auto 2.2rem; }
.cta .pill {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.35);
    color: #fff;
}
.cta .btn-grad {
    background: #fff;
    color: var(--indigo);
    box-shadow: 0 10px 28px -8px rgba(0, 0, 0, 0.3);
}
.cta .btn-grad:hover { color: var(--violet); }
.cta .btn-ghost {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff;
    box-shadow: none;
}
.cta .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #fff;
    color: #fff;
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--line-soft);
    padding: 3rem 0 2rem;
    background: #fff;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--line-soft);
}
.footer-desc { max-width: 300px; color: var(--muted); font-size: 0.9rem; margin-top: 0.9rem; }
.f-cols { display: flex; gap: 3.5rem; flex-wrap: wrap; }
.f-col h4 {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 0.9rem;
    font-weight: 700;
}
.f-col a {
    display: block;
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.22rem 0;
    transition: color 0.2s;
}
.f-col a:hover { color: var(--indigo); }
.footer-bottom {
    padding-top: 1.6rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.8rem;
    color: var(--muted);
    font-size: 0.82rem;
}

/* ---------- Reveal (ui.js) ---------- */
.reveal-init { opacity: 0; transform: translateY(24px); }
.reveal-in {
    opacity: 1;
    transform: none;
    transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
}

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .nav-center { display: none; }
    .bento { grid-template-columns: repeat(2, 1fr); }
    .b-card, .b-card.wide { grid-column: span 1; }
    .roles { grid-template-columns: 1fr; }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .app-body { grid-template-columns: 1fr; }
    .app-side { display: none; }
}
@media (max-width: 600px) {
    .bento { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .stats-strip { grid-template-columns: 1fr; }
    .stats-strip .st { border-right: none; border-bottom: 1px solid var(--line-soft); }
    .stats-strip .st:last-child { border-bottom: none; }
    .topbar-cta .link-quiet { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    .reveal-init { opacity: 1 !important; transform: none !important; }
}