/* ============================================================
   LEADSHOT — Case study page (Dao Lai)
   Reuses services.css (header/footer/btn/wrap/sec). Adds showcase blocks.
   ============================================================ */

/* Case hero */
.chero { position: relative; padding-block: var(--space-12) var(--space-16); overflow: hidden; }
.chero__reticle { position: absolute; right: -160px; top: 40%; transform: translateY(-50%); width: 560px; height: 560px; opacity: 0.12; pointer-events: none; z-index: 0; }
.chero__inner { position: relative; z-index: 1; max-width: 900px; }
.chero__kicker { display: inline-flex; align-items: center; gap: 10px; font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-widest); text-transform: uppercase; color: var(--shot); margin-bottom: var(--space-5); }
.chero__kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--shot); box-shadow: 0 0 0 4px color-mix(in srgb, var(--shot) 25%, transparent); }
.chero h1 { font-family: var(--font-display); font-size: clamp(36px, 5.8vw, 66px); font-weight: var(--weight-black); line-height: 1.02; letter-spacing: var(--tracking-tight); margin-bottom: var(--space-6); }
.chero__lead { font-size: clamp(17px, 2vw, 22px); line-height: var(--leading-relaxed); color: var(--fg-on-dark-2); max-width: 720px; }
.chero__meta { display: flex; flex-wrap: wrap; gap: var(--space-8); margin-top: var(--space-10); padding-top: var(--space-8); border-top: 1px solid var(--border-dark); }
.chero__meta div { display: flex; flex-direction: column; gap: 4px; }
.chero__meta dt { font-size: var(--text-xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--fg-on-dark-3); }
.chero__meta dd { font-size: var(--text-base); font-weight: var(--weight-semibold); color: var(--paper); }

/* Screenshot frame */
/* Screenshot / video frame — machined double-bezel (glass plate in an aluminium tray) */
.shot { position: relative; border-radius: 22px; padding: 7px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--white) 9%, transparent), color-mix(in srgb, var(--white) 3%, transparent));
  box-shadow: inset 0 1px 0 0 color-mix(in srgb, var(--white) 16%, transparent), 0 46px 100px -46px rgba(0,0,0,.72), 0 18px 46px -26px rgba(0,0,0,.5); }
.shot img, .shot video { display: block; width: 100%; height: auto; border-radius: 15px; background: #0b1440; box-shadow: 0 0 0 1px rgba(0,0,0,.35); }
.shot--bar::before, .shot--bar::after { content: none; display: none; }
.sec--paper .shot { background: linear-gradient(180deg, #ffffff, #e7eaf1);
  box-shadow: inset 0 1px 0 0 rgba(255,255,255,.9), 0 46px 100px -46px rgba(20,24,40,.26), 0 18px 42px -26px rgba(20,24,40,.15); }
.sec--paper .shot img, .sec--paper .shot video { box-shadow: 0 0 0 1px rgba(20,24,40,.10); }

/* Feature block: text + screenshot, alternating */
.feat { padding-block: var(--space-20); }
.feat__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.feat--reverse .feat__grid { grid-template-columns: 1.15fr 0.85fr; }
.feat--reverse .feat__text { order: 2; }
@media (max-width: 900px) { .feat__grid, .feat--reverse .feat__grid { grid-template-columns: 1fr; gap: var(--space-8); } .feat--reverse .feat__text { order: 0; } }
.feat__tag { display: inline-flex; align-items: center; gap: 8px; font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-widest); text-transform: uppercase; color: var(--shot); margin-bottom: var(--space-4); }
.feat h2 { font-family: var(--font-display); font-size: clamp(24px, 3.2vw, 36px); font-weight: var(--weight-extrabold); line-height: 1.12; letter-spacing: -0.03em; margin-bottom: var(--space-5); }
.feat__text p { font-size: var(--text-lg); line-height: var(--leading-relaxed); color: var(--fg-on-dark-2); margin-bottom: var(--space-4); }
.sec--paper .feat__text p { color: var(--fg2); }
.feat__text p:last-child { margin-bottom: 0; }
.feat__list { list-style: none; display: grid; gap: var(--space-3); margin-top: var(--space-6); }
.feat__list li { position: relative; padding-left: 28px; font-size: var(--text-base); line-height: var(--leading-snug); color: var(--fg-on-dark-2); }
.sec--paper .feat__list li { color: var(--fg2); }
.feat__list li::before { content: ''; position: absolute; left: 0; top: 2px; width: 18px; height: 18px; background: var(--shot); border-radius: 50%; -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/13px no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/13px no-repeat; }

/* Phone frame for mobile screenshots */
.phones { display: flex; gap: var(--space-6); justify-content: center; flex-wrap: wrap; }
.phone { width: 260px; max-width: 44vw; border-radius: 28px; padding: 8px; background: #0b1440; border: 1px solid var(--border-dark-strong); box-shadow: 0 30px 70px -25px rgba(0,0,0,.6); }
.phone img { display: block; width: 100%; height: auto; border-radius: 20px; }
.phone__cap { text-align: center; font-size: var(--text-sm); color: var(--fg-on-dark-3); margin-top: var(--space-3); }

/* Big metrics row */
.mrow { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); margin-top: var(--space-10); }
@media (max-width: 760px) { .mrow { grid-template-columns: 1fr 1fr; gap: var(--space-8); } }
.mrow .m__n { font-family: var(--font-alt-display); font-weight: var(--weight-black); font-size: clamp(30px, 4vw, 46px); line-height: 1; color: var(--shot); letter-spacing: -0.03em; }
.mrow .m__c { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--fg-on-dark-2); }
.sec--paper .mrow .m__c { color: var(--fg2); }

/* Modules grid */
.mods { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); margin-top: var(--space-8); }
@media (max-width: 820px) { .mods { grid-template-columns: 1fr; } }
.mod { border: 1px solid var(--border-dark); border-radius: var(--radius-lg); padding: var(--space-6); background: color-mix(in srgb, var(--white) 3%, transparent); }
.mod h3 { font-family: var(--font-display); font-size: var(--text-xl); font-weight: var(--weight-bold); margin-bottom: var(--space-2); }
.mod p { font-size: var(--text-base); line-height: var(--leading-body); color: var(--fg-on-dark-2); }
.mod__ico { width: 30px; height: 30px; color: var(--shot); margin-bottom: var(--space-3); }

/* Tech stack pills */
.stack { display: flex; flex-wrap: wrap; gap: 10px; margin-top: var(--space-8); }
.stack span { font-family: var(--font-mono); font-size: var(--text-sm); padding: 8px 14px; border-radius: var(--radius-full); border: 1px solid var(--border-dark-strong); color: var(--fg-on-dark-2); background: color-mix(in srgb, var(--white) 3%, transparent); }
.sec--paper .stack span { border-color: var(--border-light); color: var(--fg2); background: var(--white); }

/* full-bleed screenshot caption */
.shotcap { margin-top: var(--space-4); font-size: var(--text-sm); color: var(--fg-on-dark-3); text-align: center; }
.sec--paper .shotcap { color: var(--fg2); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(30px); filter: blur(6px); transition: opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1), filter .9s cubic-bezier(.16,1,.3,1); }
.reveal.in { opacity: 1; transform: none; filter: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; filter: none; transition: none; } }

/* --- Screencasts (video screens) + bilingual block --- */
.chero__media { position: relative; z-index: 1; margin-top: var(--space-10); max-width: 1000px; }
.chero__media::before { content: ''; position: absolute; left: 50%; top: 4%; width: 84%; height: 80%; transform: translateX(-50%); background: radial-gradient(58% 58% at 50% 42%, color-mix(in srgb, var(--shot) 42%, transparent), transparent 72%); filter: blur(74px); opacity: .5; z-index: -1; pointer-events: none; }
.bilang { display: grid; grid-template-columns: 1.6fr 0.9fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; margin-top: var(--space-8); }
@media (max-width: 900px) { .bilang { grid-template-columns: 1fr; gap: var(--space-8); justify-items: center; } }
.bilang__video { width: 100%; }
.bilang__cap { text-align: center; font-size: var(--text-sm); color: var(--fg2); margin-top: var(--space-3); }
.sec--paper .phone__cap { color: var(--fg2); }

/* --- Premium elevation: metric cards, phone, CTA, buttons --- */
.mrow > div { padding: var(--space-6); border-radius: 18px; background: color-mix(in srgb, var(--white) 4%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--white) 8%, transparent); transition: transform .5s cubic-bezier(.16,1,.3,1), box-shadow .5s cubic-bezier(.16,1,.3,1); }
.mrow > div:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--shot) 45%, transparent); }
.sec--paper .mrow > div { background: #fff; box-shadow: inset 0 0 0 1px rgba(20,24,40,.07), 0 24px 44px -30px rgba(20,24,40,.22); }

.phone { border: none; border-radius: 34px; padding: 10px; background: linear-gradient(180deg, #10173e, #0a0f2e); box-shadow: inset 0 1px 0 0 rgba(255,255,255,.12), 0 50px 90px -40px rgba(0,0,0,.7), 0 20px 40px -24px rgba(0,0,0,.5); }
.phone img { border-radius: 24px; }

.cta { position: relative; overflow: hidden; }
.cta::before { content: ''; position: absolute; left: 50%; top: -30%; width: 72%; height: 130%; transform: translateX(-50%); background: radial-gradient(50% 50% at 50% 50%, color-mix(in srgb, var(--shot) 55%, transparent), transparent 70%); filter: blur(90px); opacity: .32; z-index: 0; pointer-events: none; }
.cta > .wrap { position: relative; z-index: 1; }
.btn--submit { display: inline-flex; align-items: center; gap: 12px; transition: transform .5s cubic-bezier(.32,.72,0,1), box-shadow .5s cubic-bezier(.32,.72,0,1); }
.btn--submit:active { transform: scale(.985); }
.btn--submit .btn__ico { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: rgba(0,0,0,.16); font-size: 15px; line-height: 1; transition: transform .5s cubic-bezier(.32,.72,0,1); }
.btn--submit:hover .btn__ico { transform: translate(3px,-1px); }

/* Документы: галерея PDF (счёт + акт) */
.docs { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); margin-top: var(--space-6); }
@media (max-width: 700px) { .docs { grid-template-columns: 1fr; } }
.docs .shot { padding: 8px; background: #fff; }
.docs .shot img { background: #fff; border-radius: 6px; box-shadow: 0 0 0 1px rgba(20,24,40,.08); }

/* «Три рабочих места» — визуализация реальными экранами в устройствах */
.mods--visual { grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.mods--visual .mod { padding: 0; border: none; background: transparent; }
.mod__shot { height: 250px; display: grid; place-items: center; margin-bottom: var(--space-5); }
.mods--visual .mod .shot { width: 100%; height: 100%; padding: 6px; border-radius: 16px; }
.mods--visual .mod .shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; border-radius: 11px; }
.mod__shot--phone .phone { width: 138px !important; max-width: 138px !important; height: 100%; padding: 7px; border-radius: 22px; }
.mod__shot--phone .phone img { width: 100% !important; height: 100% !important; object-fit: cover; object-position: top center; border-radius: 15px; }
.mods--visual .mod h3 { margin-bottom: var(--space-2); }
@media (max-width: 820px) { .mods--visual { grid-template-columns: 1fr; } .mod__shot { height: 260px; } }