.sms-api-page{background:#fff;font-family:Manrope,Arial,sans-serif}.api-section{padding:88px 0}.api-soft{background:#f3f6f7}.api-hero{padding:74px 0 86px}.api-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(440px,.78fr);gap:78px;align-items:center}.api-hero h1{max-width:780px;margin:0;font-size:clamp(56px,5.5vw,76px);font-weight:600;letter-spacing:-.055em;line-height:.98}.api-hero-copy>p{max-width:670px;margin:26px 0 0;color:var(--muted);font-size:18px;line-height:1.55}.api-marker{display:flex;align-items:center;gap:10px;margin-top:24px;color:var(--ink);font-size:12px;font-weight:700}.api-marker i{width:4px;height:4px;border-radius:50%;background:var(--blue)}.api-actions{display:flex;gap:11px;margin-top:28px;flex-wrap:wrap}
.request-visual{display:grid;gap:11px;padding:27px;border-radius:30px;background:#e8f3f6;box-shadow:0 28px 70px rgba(16,40,62,.11)}.request-label{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px}.request-label span{color:var(--blue);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.request-label b{font-size:12px}.request-line,.response-line{display:flex;gap:5px;padding:17px;border-radius:16px;background:#fff;flex-direction:column}.request-line small,.response-line small{color:var(--muted);font-size:9px;text-transform:uppercase;letter-spacing:.06em}.request-line strong,.response-line strong{font-size:14px}.response-line span{color:var(--muted);font-size:10px}.request-route{display:grid;grid-template-columns:1fr auto 1fr;gap:9px;align-items:center;padding:14px;border-radius:16px;background:var(--ink);color:#fff;font-size:11px;font-weight:700;text-align:center}.request-route i{color:#8fd8ae;font-style:normal}.request-status{display:flex;align-items:center;gap:8px;padding:9px 3px;color:var(--green);font-size:10px;font-weight:700}.request-status i{width:8px;height:8px;border-radius:50%;background:var(--green)}
.api-section-head{margin-bottom:38px}.api-section-head.split{display:grid;grid-template-columns:1.08fr .72fr;gap:80px;align-items:end}.api-section-head h2,.status-grid h2,.error-box h2,.faq-copy h2,.connect-box h2{max-width:790px;margin:0;font-size:52px;font-weight:600;letter-spacing:-.045em;line-height:1.04}.api-section-head>p,.api-section-head.split>p{margin:0;color:var(--muted);font-size:15px}.format-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.format-card{min-height:410px;padding:34px;border:1px solid var(--line);border-radius:28px;background:#fff}.format-card>span,.docs-grid article>span{color:var(--blue);font-size:11px;font-weight:700;letter-spacing:.06em}.format-card h3{max-width:480px;margin:58px 0 12px;font-size:31px;letter-spacing:-.03em;line-height:1.1}.format-card p{max-width:520px;color:var(--muted)}.format-card ul{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:28px 0 0;padding:0;list-style:none}.format-card li{padding:11px 13px;border-radius:12px;background:#f3f6f7;font-size:12px;font-weight:700}.smpp-link{display:inline-flex;margin-top:22px;color:var(--blue);font-size:13px;font-weight:700}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.process-grid article{min-height:235px;padding:27px;border-top:3px solid var(--blue);background:#f7f9fa}.process-grid span{color:var(--blue);font-size:11px;font-weight:700}.process-grid h3{margin:52px 0 8px;font-size:24px}.process-grid p{margin:0;color:var(--muted);font-size:14px}.route-strip{display:grid;grid-template-columns:repeat(7,auto);gap:14px;align-items:center;margin-top:20px;padding:23px;border-radius:22px;background:var(--ink);color:#fff}.route-strip span{padding:14px;border:1px solid #36536a;border-radius:12px;font-size:11px;font-weight:700;text-align:center}.route-strip i{color:#8fd8ae;font-style:normal;text-align:center}
.example-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.code-card{border-radius:26px;background:var(--ink);color:#fff;overflow:hidden}.code-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid #36536a}.code-head span{color:#b9c9d3;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.code-head b{color:#8fd8ae;font-size:11px}.code-card pre{margin:0;padding:28px;font-size:13px;line-height:1.7;overflow:auto}.code-card em{color:#7ec3e8;font-style:normal}.code-card strong{color:#98dfb6;font-weight:600}.code-legend{display:grid;gap:1px;border:1px solid var(--line);border-radius:26px;background:var(--line);overflow:hidden}.code-legend article{padding:24px;background:#fff}.code-legend code{color:var(--blue);font-size:13px;font-weight:700}.code-legend p{margin:12px 0 0;color:var(--muted);font-size:13px}
.capability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.capability-grid article{min-height:170px;padding:24px;border:1px solid var(--line);border-radius:20px;background:#fff}.capability-grid h3{margin:0 0 9px;font-size:18px}.capability-grid p{margin:0;color:var(--muted);font-size:12px;line-height:1.5}.status-section{background:#e8f3f6}.status-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:90px;align-items:center}.status-grid>div:first-child>p{max-width:560px;color:var(--muted)}.status-visual{display:grid;grid-template-columns:.72fr 1.28fr;gap:13px;padding:24px;border-radius:28px;background:#fff}.status-message{display:flex;padding:21px;border-radius:18px;background:#f3f6f7;flex-direction:column}.status-message small{color:var(--muted);font-size:9px;text-transform:uppercase;letter-spacing:.06em}.status-message strong{margin-top:8px;font-size:24px}.status-message span{margin-top:auto;color:var(--muted);font-size:9px}.status-list{display:grid;gap:8px}.status-list>div{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px;border:1px solid var(--line);border-radius:13px}.status-list code{color:var(--blue);font-size:11px}.status-list b{font-size:11px}
.compact-section{padding:62px 0}.error-box{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:end;padding:35px;border-radius:28px;background:#fff}.error-box h2{font-size:40px}.error-box p{margin:0;color:var(--muted)}.error-box a{display:inline-flex;margin-top:17px;color:var(--blue);font-size:13px;font-weight:700}.docs-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.docs-grid article{display:flex;min-height:300px;padding:30px;border:1px solid var(--line);border-radius:26px;flex-direction:column}.docs-grid h3{margin:48px 0 9px;font-size:25px}.docs-grid p{max-width:500px;margin:0;color:var(--muted);font-size:14px}.docs-grid a{margin-top:auto;color:var(--blue);font-size:13px;font-weight:700}.docs-note{margin:16px 0 0;color:var(--muted);font-size:12px}.api-faq{background:#f3f6f7}.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:90px}.faq-copy p{max-width:350px;color:var(--muted)}.api-faq-list{border-top:1px solid #cdd9de}.api-faq-list details{padding:19px 0;border-bottom:1px solid #cdd9de}.api-faq-list summary{position:relative;padding-right:42px;cursor:pointer;font-size:17px;font-weight:600;list-style:none}.api-faq-list summary::-webkit-details-marker{display:none}.api-faq-list summary::after{content:"+";position:absolute;right:3px;top:-4px;color:var(--blue);font-size:27px;font-weight:400}.api-faq-list details[open] summary::after{content:"−"}.api-faq-list p{max-width:700px;margin:11px 0 0;color:var(--muted);font-size:14px}.api-connect{padding:76px 0 96px}.connect-box{position:relative;display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;padding:52px;border-radius:36px;background:#dfeef2;overflow:hidden}.connect-box::before{content:"";position:absolute;inset:0 0 auto;height:5px;background:linear-gradient(90deg,var(--green) 0 50%,var(--blue) 50%)}.connect-box>div>p{color:var(--muted)}.api-form{display:grid;gap:14px;padding:27px;border-radius:25px;background:#fff;box-shadow:0 22px 55px rgba(16,40,62,.08)}.api-form label{font-size:12px;font-weight:700}.api-form input,.api-form textarea{display:block;width:100%;margin-top:6px;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fff}.api-form textarea{min-height:96px;resize:vertical}.api-form small{color:var(--muted);font-size:9px}
@media(max-width:1050px){.api-hero-grid,.status-grid,.connect-box{grid-template-columns:1fr;gap:45px}.api-section-head.split,.error-box,.faq-layout{grid-template-columns:1fr;gap:28px}.request-visual{max-width:720px}.example-grid{grid-template-columns:1fr}.route-strip{grid-template-columns:1fr}.route-strip i{transform:rotate(90deg)}.capability-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.api-section{padding:64px 0}.api-hero{padding:50px 0 66px}.api-hero h1{font-size:46px}.api-section-head h2,.status-grid h2,.faq-copy h2,.connect-box h2{font-size:39px}.format-grid,.process-grid,.docs-grid{grid-template-columns:1fr}.format-card{min-height:auto}.format-card h3{margin-top:34px}.status-visual{grid-template-columns:1fr}.connect-box{padding:30px 24px}.form-row{grid-template-columns:1fr}.error-box{padding:28px}.error-box h2{font-size:36px}}
@media(max-width:520px){.request-visual{padding:19px}.request-route{grid-template-columns:1fr}.request-route i{transform:rotate(90deg)}.format-card{padding:25px}.format-card ul,.capability-grid{grid-template-columns:1fr}.code-card pre{padding:20px;font-size:11px}.status-list>div{align-items:flex-start;flex-direction:column;gap:5px}.api-actions{align-items:stretch;flex-direction:column}.api-actions .button{width:100%}}

/* Refinement pass: alternate major technical moments with denser information blocks. */
#formats{padding:72px 0}#formats .api-section-head{margin-bottom:30px}.format-card{min-height:330px;padding:28px 30px}.format-card h3{margin:38px 0 10px}.format-card ul{margin-top:21px}.format-card li{padding:9px 12px}
#process{padding:82px 0}.process-grid{position:relative;gap:22px}.process-grid article{position:relative;min-height:164px;padding:21px 27px}.process-grid h3{margin:0 0 8px}.process-grid article:not(:last-child)::after{content:"→";position:absolute;z-index:2;top:50%;right:-28px;display:grid;width:34px;height:34px;place-items:center;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--blue);font-size:15px;font-weight:700;transform:translateY(-50%)}
#example{padding:90px 0}
#capabilities{padding:66px 0}#capabilities .api-section-head{margin-bottom:28px}.capability-grid{gap:10px}.capability-grid article{min-height:116px;padding:18px 20px}.capability-grid h3{margin-bottom:6px}.capability-grid p{line-height:1.42}
.status-section{padding:82px 0}.status-grid{grid-template-columns:.62fr 1.38fr;gap:60px}.status-visual{padding:28px}.status-list>div{padding:16px}
.code-legend{grid-template-rows:repeat(3,1fr);gap:0;background:#fff}
.code-legend article{display:flex;justify-content:center;min-height:0;border-bottom:1px solid var(--line);flex-direction:column}
.code-legend article:last-child{border-bottom:0}
.compact-section{padding:38px 0}.error-box{gap:52px;padding:26px 30px}.error-box h2{font-size:36px}.error-box .eyebrow{margin-bottom:12px}
#docs{padding:70px 0}#docs .api-section-head{margin-bottom:30px}.docs-grid article{min-height:260px}.docs-grid h3{margin-top:36px}
@media(max-width:1050px){.status-grid{grid-template-columns:1fr;gap:38px}.status-visual{max-width:820px}.process-grid article:not(:last-child)::after{display:none}.format-card{min-height:310px}}
@media(max-width:760px){#formats,#process,#example,#capabilities,.status-section,#docs{padding:60px 0}.format-card{min-height:auto;padding:25px}.capability-grid article{min-height:auto}.error-box{padding:24px}.docs-grid article{min-height:235px}}