/* Fase 3: estilos acotados a audiovisual, biblioteca, instituto y redes. */
.phase-three{--p3-ink:#092b59;--p3-text:#365373;--p3-blue:#0867c9;color:var(--p3-ink);font-family:"Segoe UI Variable Display","Segoe UI",Arial,sans-serif;scroll-margin-top:24px}
.p3-wrap{width:min(1240px,calc(100% - 96px));margin-inline:auto}
.phase-three [hidden]{display:none!important}
.phase-three h2,.phase-three h3,.phase-three p{margin-top:0}
.p3-eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:750;letter-spacing:.12em;text-transform:uppercase;color:#185da2;margin-bottom:16px}
.p3-eyebrow:before{content:"";height:2px;width:25px;background:#559cda}
.phase-three h2{font-size:clamp(34px,3.5vw,48px);line-height:1.12;letter-spacing:-.045em;margin-bottom:20px}
.p3-lead{font-size:17px;line-height:1.75;color:var(--p3-text);max-width:650px;margin-bottom:0}
.p3-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:12px 22px;border:1px solid #bdd3eb;border-radius:999px;background:white;color:#0b4687;font-size:14px;font-weight:700;line-height:1.4;transition:background .18s,box-shadow .18s}
.p3-button:hover{background:#eaf5ff;box-shadow:0 5px 15px #07366b12}
.p3-button-primary{background:linear-gradient(115deg,#0867c9,#064da9);border-color:#0860ba;color:white;box-shadow:0 5px 15px #0b59ab24}
.p3-button-primary:hover{background:#064da9}
.phase-three a:focus-visible,.phase-three button:focus-visible,.phase-three iframe:focus-visible,.p3-socials a:focus-visible{outline:3px solid #1672ce;outline-offset:5px}
.p3-icon{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.p3-youtube{padding:76px 0 70px;background:linear-gradient(180deg,#f1f7fe,#fff)}
.p3-channel-heading{display:flex;justify-content:space-between;align-items:center;gap:32px;margin-bottom:30px}
.p3-channel-heading h2{max-width:680px}.p3-channel-heading .p3-button{white-space:nowrap}
.p3-feature{display:grid;grid-template-columns:1.25fr 1fr;border:1px solid #b7d5f1;border-radius:26px;overflow:hidden;background:linear-gradient(130deg,#0a2b58,#104d8b);box-shadow:0 14px 40px #103c6c10;color:white}
.p3-player{aspect-ratio:16/9;position:relative;background:#071b31;align-self:center;overflow:hidden}
.p3-player>img{width:100%;height:100%;object-fit:cover;display:block}
.p3-player-button{position:absolute;inset:0;width:100%;border:0;background:linear-gradient(180deg,transparent 30%,#03162a8f);color:white;display:flex;align-items:end;justify-content:start;padding:22px;gap:12px}
.p3-player-button>span{display:flex;align-items:center;gap:10px;background:#fff;color:#084a91;padding:12px 18px;border-radius:99px;font-size:14px;font-weight:750;box-shadow:0 3px 15px #0003}
.p3-player-button:hover>span{background:#e8f3ff}.p3-player-button:focus-visible{outline-offset:-6px!important;outline-color:white!important}
.p3-player iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#071b31}
.p3-feature-copy{padding:32px;align-self:center}.p3-feature-label{display:flex;align-items:center;gap:9px;color:#c4e2ff;font-size:12px;letter-spacing:.07em;text-transform:uppercase;font-weight:700;margin-bottom:17px}
.p3-feature h3{font-size:clamp(24px,2.15vw,30px);line-height:1.22;letter-spacing:-.025em;margin-bottom:15px}.p3-feature-copy p{color:#d5e6f7;font-size:15px;line-height:1.7;margin-bottom:18px}
.p3-feature-actions{display:flex;gap:15px;flex-wrap:wrap;align-items:center}.p3-feature-link{font-size:14px;color:white;font-weight:700;min-height:44px;display:inline-flex;align-items:center;gap:10px;border-bottom:1px solid #84b2df}
.p3-close-player{background:white;color:#103d6c;border:0;border-radius:8px;padding:10px 12px;min-height:44px;font-size:13px}
.p3-player-status{font-size:13px;line-height:1.6;margin:14px 0 0;color:#365373}.p3-player-status:empty{display:none}
.p3-explore-label{display:flex;justify-content:space-between;gap:18px;align-items:center;margin:30px 0 16px}.p3-explore-label h3{font-size:19px;margin:0}.p3-explore-label span{font-size:13px;color:#365373}
.p3-video-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.p3-video-card{display:flex;flex-direction:column;border:1px solid #cddff2;border-radius:19px;overflow:hidden;background:#fff;box-shadow:0 4px 14px #164e8606;transition:box-shadow .18s}
.p3-video-card:hover{box-shadow:0 10px 25px #164e8616}.p3-video-image{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e7f1fb}.p3-video-image img{width:100%;height:100%;object-fit:cover;display:block}.p3-video-image>span{position:absolute;bottom:10px;right:10px;display:grid;place-items:center;width:32px;height:32px;background:#fff;border-radius:50%;color:#0867c9}
.p3-video-body{padding:19px;display:flex;flex-direction:column;flex:1}.p3-video-category{font-size:12px;font-weight:750;text-transform:uppercase;letter-spacing:.055em;color:#2c5178;margin-bottom:10px}.p3-video-body h3{font-size:17px;line-height:1.45;letter-spacing:-.015em;margin-bottom:18px}.p3-card-link{font-size:13px;font-weight:750;color:#075cae;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;min-height:32px}
.p3-loading-note{font-size:13px;line-height:1.7;color:#365373;margin:20px 0 0;max-width:800px}
.p3-library{padding:76px 0;background:#f2f7fd;border-block:1px solid #e2edf8}
.p3-library-head{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;margin-bottom:28px}
.p3-resource-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:20px}
.p3-resource-card{display:flex;flex-direction:column;padding:27px;border:1px solid #cbdff3;border-radius:22px;background:white;position:relative;overflow:hidden}
.p3-resource-symbol{width:58px;height:58px;display:grid;place-items:center;background:#e9f4ff;color:#0867c9;border:1px solid #c5dff7;border-radius:16px;margin-bottom:25px}.p3-resource-symbol svg{width:30px;height:30px}
.p3-resource-card h3{font-size:25px;line-height:1.2;letter-spacing:-.025em;margin-bottom:14px}.p3-resource-card p{font-size:15px;line-height:1.75;color:#365373;margin-bottom:23px}.p3-resource-meta{font-size:12px;font-weight:700;line-height:1.6;color:#2c5178;margin-bottom:12px}
.p3-resource-card .p3-card-link{border-top:1px solid #dce8f5;padding-top:17px;min-height:48px;font-size:14px}
.p3-resource-download{background:linear-gradient(150deg,#e1f0ff,#fff)}.p3-resource-download .p3-resource-symbol{background:#fff}.p3-download-note{display:block;font-size:12px;line-height:1.6;color:#365373;margin-bottom:18px}
.p3-library-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid #cbdff3;margin-top:27px;padding-top:24px}.p3-library-bar p{font-size:14px;line-height:1.7;color:#365373;margin:0;max-width:750px}
.p3-about{padding:76px 0;background:#fff}.p3-about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:55px;align-items:center}.p3-about-visual{background:linear-gradient(145deg,#eaf5ff,#f8fbff);border:1px solid #cddff2;border-radius:25px;padding:18px;position:relative}.p3-about-visual img{display:block;width:100%;height:auto;border-radius:14px}.p3-identity-caption{display:flex;align-items:center;gap:12px;margin-top:17px;padding:0 7px 3px;font-size:14px;font-weight:700;color:#194c80}.p3-identity-caption .p3-icon{width:28px;height:28px}
.p3-about-copy h2{font-size:clamp(36px,3.5vw,48px)}.p3-about-copy .p3-lead{font-size:16px;margin-bottom:23px}.p3-principles{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:15px}.p3-principles li{display:flex;gap:13px;align-items:start}.p3-principles li>span{display:grid;place-items:center;flex:0 0 36px;height:36px;background:#edf6ff;border:1px solid #c9e1f6;color:#0867c9;border-radius:11px;font-size:14px;font-weight:750}.p3-principles strong{display:block;font-size:17px;margin-bottom:5px}.p3-principles p{font-size:14px;line-height:1.7;color:#365373;margin:0}
.p3-socials{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.p3-socials a{display:inline-flex;align-items:center;gap:9px;min-height:46px;padding:10px 14px;border:1px solid #bfd5eb;border-radius:12px;background:white;color:#104a87;font-size:13px;font-weight:700}.p3-socials a:hover{background:#e9f4ff}.p3-socials .p3-icon{width:21px;height:21px}
@media(max-width:1100px){.p3-video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.p3-feature{grid-template-columns:1.15fr 1fr}.p3-feature-copy{padding:24px}.p3-resource-card{padding:23px}.p3-resource-card h3{font-size:22px}.p3-about-grid{gap:30px}}
@media(max-width:800px){.p3-wrap{width:calc(100% - 48px)}.p3-channel-heading{align-items:start;flex-direction:column;gap:23px}.p3-feature{grid-template-columns:1fr}.p3-feature-copy{padding:28px}.p3-library-head{grid-template-columns:1fr;gap:23px}.p3-library-head .p3-button{justify-self:start}.p3-resource-grid{grid-template-columns:1fr 1fr}.p3-resource-download{grid-column:1/-1}.p3-about-grid{grid-template-columns:1fr;gap:30px}.p3-about-visual{max-width:620px}.p3-library-bar{align-items:start;flex-direction:column}.p3-explore-label{align-items:start;flex-direction:column;gap:7px}}
@media(max-width:550px){.p3-wrap{width:calc(100% - 36px)}.p3-youtube,.p3-library,.p3-about{padding:48px 0}.phase-three h2{font-size:33px}.p3-lead{font-size:15px}.p3-eyebrow{font-size:11px;letter-spacing:.08em;margin-bottom:13px}.p3-feature{border-radius:20px}.p3-feature-copy{padding:24px}.p3-feature h3{font-size:25px}.p3-feature-copy p{font-size:14px}.p3-player-button{padding:15px}.p3-player-button>span{font-size:13px;padding:10px 14px}.p3-video-grid{grid-template-columns:1fr;gap:18px}.p3-video-body{padding:20px}.p3-video-body h3{font-size:20px}.p3-video-category{font-size:12px}.p3-card-link{min-height:40px;font-size:14px}.p3-resource-grid{grid-template-columns:1fr}.p3-resource-download{grid-column:auto}.p3-resource-card{padding:25px}.p3-resource-card h3{font-size:25px}.p3-resource-symbol{margin-bottom:20px}.p3-library-bar .p3-button{width:100%}.p3-about-visual{padding:12px;border-radius:20px}.p3-identity-caption{font-size:13px;line-height:1.5;padding:0 3px}.p3-about-copy h2{font-size:36px}.p3-about-copy .p3-lead{font-size:15px}.p3-socials{display:grid;grid-template-columns:1fr 1fr}.p3-socials a{justify-content:center;padding-inline:10px}}
@media(prefers-reduced-motion:reduce){.p3-button,.p3-video-card{transition:none}}