/* How-to videos: help button and modal player (poster, glass play button and caption follow the conference page). */
.howto-row{margin:0 0 20px}
.howto-button{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:8px 18px 8px 10px;border:1.5px solid #cfd8de;border-radius:999px;background:#fff;color:#006da8;font:inherit;font-size:15px;font-weight:700;cursor:pointer;box-shadow:none;transform:none}
.howto-button:hover{border-color:#006da8;background:#f4f9fc}
.howto-button:focus-visible,.howto-close:focus-visible,.howto-play:focus-visible{outline:3px solid #ffbf47;outline-offset:3px}
.howto-button{position:relative}
/* Attention hint: the play icon itself turns green and pulses for ten seconds (set from howto.js). */
.howto-button.is-pulsing .howto-icon-help{border-radius:50%;animation:howto-pulse 1.6s ease-out infinite}
.howto-button.is-pulsing .howto-icon-help circle{fill:#e6f3e9;stroke:#3d924d}
.howto-button.is-pulsing .howto-icon-help polygon{fill:#3d924d;stroke:#3d924d}
@keyframes howto-pulse{0%{box-shadow:0 0 0 0 rgba(61,146,77,.65)}70%{box-shadow:0 0 0 10px rgba(61,146,77,0)}100%{box-shadow:0 0 0 0 rgba(61,146,77,0)}}
@media(prefers-reduced-motion:reduce){.howto-button.is-pulsing .howto-icon-help{animation:none}}
.howto-icon{width:28px;height:28px;flex:none}
.howto-icon-help circle{fill:#eaf5fb;stroke:#006da8;stroke-width:1.6}
.howto-icon-help polygon{fill:#006da8;stroke:#006da8;stroke-width:1.8;stroke-linejoin:round}

.howto-dialog{position:fixed;inset:auto 20px 20px auto;margin:0;z-index:60;width:min(440px,calc(100% - 24px));max-height:calc(100dvh - 40px);padding:0;border:1.5px solid #cfd8de;border-radius:20px;background:#fff;color:#1b3a52;box-shadow:0 18px 60px rgba(8,28,44,.35);overflow:auto}
.howto-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px 12px}
.howto-title{margin:0;font-size:17px;line-height:1.3;color:#1b3a52}
.howto-close{flex:none;width:44px;height:44px;border-radius:50%;border:1.5px solid #cfd8de;background:#fff;display:grid;place-items:center;cursor:pointer;padding:0;box-shadow:none;transform:none}
.howto-close .howto-icon{width:20px;height:20px;fill:none;stroke:#1b3a52;stroke-width:2.4;stroke-linecap:round}

.howto-stage{position:relative;margin:0 18px;height:230px;border-radius:18px;overflow:hidden;background:#06355c;color:#fff}
.howto-poster{position:absolute;inset:0;background:linear-gradient(135deg,#0b4f8a,#06355c) center/cover no-repeat}
.howto-poster::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 35%,rgba(0,40,70,.9))}
.howto-stage.is-playing .howto-poster{display:none}
.howto-stage iframe,.howto-stage video{position:absolute;inset:0;width:100%;height:100%;border:0;background:#000}
.howto-tag{position:absolute;left:20px;top:18px;z-index:2;background:rgba(255,255,255,.92);color:#0b4f8a;font-weight:800;font-size:12px;letter-spacing:.1em;text-transform:uppercase;padding:6px 12px;border-radius:999px}
.howto-play{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.14);backdrop-filter:blur(6px);border:2px solid rgba(255,255,255,.7);z-index:2;display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;box-shadow:none;min-height:0}
.howto-play .howto-icon{width:32px;height:32px;fill:#fff;stroke:#fff;stroke-width:2.6;stroke-linejoin:round}
.howto-play:hover:not(:disabled){background:rgba(255,255,255,.26)}
.howto-play:disabled{cursor:default;border-style:dashed;opacity:.8}
.howto-cap{position:absolute;left:24px;right:24px;bottom:20px;z-index:2}
.howto-cap b{display:block;font-family:'Fira Sans',sans-serif;font-style:italic;font-weight:800;font-size:18px;line-height:1.15}
.howto-cap span{display:inline-block;font-size:13px;margin-top:8px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:5px 14px;line-height:1.3}

.howto-steps{padding:16px 18px 20px}
.howto-steps h3{margin:0 0 10px;font-size:16px;color:#006da8}
.howto-steps ol{margin:0;padding-left:22px;display:grid;gap:8px;font-size:15px;line-height:1.55;color:#33495a}
@media(max-width:600px){
  .howto-dialog{inset:auto 8px 8px 8px;width:auto;max-height:70dvh}
  .howto-stage{height:190px}
  .howto-play{width:56px;height:56px}.howto-play .howto-icon{width:24px;height:24px}
  .howto-cap{left:14px;right:14px;bottom:12px}.howto-cap b{font-size:16px}
  .howto-tag{left:12px;top:12px;font-size:10px}
}
/* Launcher below the section tabs: monitor with a play button. */
.howto-hero-wrap{display:flex;justify-content:center;margin:18px 0 6px}
.howto-hero{display:flex;flex-direction:column;align-items:center;box-sizing:content-box;width:clamp(180px,50vw,230px);padding:18px 20px 20px;border:0;border-radius:26px;background:transparent;color:#1b3a52;font:inherit;cursor:pointer;box-shadow:none;transform:none;transition:background-color .2s}
.howto-hero:hover,.howto-hero:focus-visible{background:#eef3f7;box-shadow:none;transform:none}
.howto-hero-screen{display:grid;place-items:center;width:100%;aspect-ratio:16/10;border:7px solid #cfd8de;border-radius:14px;background:#06355c center/cover no-repeat;box-shadow:0 8px 22px rgba(0,30,60,.22)}
.howto-hero-play{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.9);border:2px solid #fff}
.howto-hero-play .howto-icon{width:26px;height:26px;fill:#006da8;stroke:#006da8;stroke-width:2;stroke-linejoin:round}
.howto-hero-stand{width:22%;height:14px;background:#cfd8de;clip-path:polygon(15% 0,85% 0,100% 100%,0 100%)}
.howto-hero-stand::after{content:""}
.howto-hero-label{margin-top:6px;padding:8px 16px;min-height:44px;box-sizing:border-box;display:inline-flex;align-items:center;border-radius:999px;background:#fff;border:1.5px solid #cfd8de;color:#006da8;font-weight:700;font-size:15px}
.howto-hero:hover .howto-hero-play{background:#fff;transform:scale(1.06)}
.howto-hero:focus-visible{outline:3px solid #ffbf47;outline-offset:6px;border-radius:14px}
.howto-hero.is-pulsing .howto-hero-play{background:#e6f3e9;border-color:#3d924d;animation:howto-hero-pulse 1.6s ease-out infinite}
.howto-hero.is-pulsing .howto-hero-play .howto-icon{fill:#2f7a3d;stroke:#2f7a3d}
@keyframes howto-hero-pulse{0%{box-shadow:0 0 0 0 rgba(61,146,77,.8)}70%{box-shadow:0 0 0 18px rgba(61,146,77,0)}100%{box-shadow:0 0 0 0 rgba(61,146,77,0)}}
@media(prefers-reduced-motion:reduce){.howto-hero.is-pulsing .howto-hero-play{animation:none;box-shadow:0 0 0 6px rgba(61,146,77,.5)}}
@media print{.howto-row,.howto-dialog,.howto-hero-wrap{display:none!important}}