:root {
    --blue: #0B3D91;
    --blue-dark: #061E45;
    --blue-mid: #123B73;
    --blue-soft: #EAF1FF;
    --gold: #D4AF37;
    --gold-soft: #FFF6D8;
    --white: #FFFFFF;
    --bg: #F4F7FB;
    --text: #172033;
    --muted: #667085;
    --border: #DFE7F2;
    --success: #16A34A;
    --success-soft: #DCFCE7;
    --warning: #F59E0B;
    --warning-soft: #FEF3C7;
    --danger: #DC2626;
    --danger-soft: #FEE2E2;
    --radius: 24px;
    --radius-lg: 32px;
    --shadow: 0 24px 70px rgba(15, 23, 42, 0.10);
    --shadow-strong: 0 34px 90px rgba(15, 23, 42, 0.18);
    --left-panel-width: 48%;
}

/* =========================
   RESET
========================= */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    border: 0;
    cursor: pointer;
}

    button:disabled {
        cursor: not-allowed;
        opacity: 0.58;
        transform: none !important;
    }

input,
select,
textarea {
    width: 100%;
}

.hidden {
    display: none !important;
}

.material-symbols-rounded {
    font-variation-settings: "FILL" 1, "wght" 500, "GRAD" 0, "opsz" 24;
}

/* =========================
   LAYOUT PRINCIPAL
========================= */

.registration-page {
    min-height: 100vh;
    display: grid;
    grid-template-columns: var(--left-panel-width) minmax(0, 1fr);
    background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.10), transparent 28%), var(--bg);
}

/*
   Punto importante:
   La izquierda se queda quieta.
   La derecha scrollea.
   Parece obvio, pero el CSS ama traicionar.
*/

.visual-panel {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    background: radial-gradient(circle at top left, rgba(212, 175, 55, 0.20), transparent 28%), radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.12), transparent 30%), linear-gradient(135deg, var(--blue-dark), var(--blue-mid));
    color: var(--white);
    display: flex;
    align-items: center;
    padding: clamp(28px, 4vw, 54px);
}

.form-panel {
    min-height: 100vh;
    padding: clamp(22px, 4vw, 46px);
    display: grid;
    align-content: start;
    gap: 22px;
    background: radial-gradient(circle at top right, rgba(11, 61, 145, 0.08), transparent 28%), var(--bg);
}

/* =========================
   PANEL VISUAL
========================= */

.visual-content {
    position: relative;
    z-index: 2;
    width: min(720px, 100%);
}

.orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(2px);
    opacity: 0.88;
    pointer-events: none;
}

.orb-one {
    width: 280px;
    height: 280px;
    top: -80px;
    right: -80px;
    background: rgba(212, 175, 55, 0.22);
}

.orb-two {
    width: 360px;
    height: 360px;
    bottom: -130px;
    left: -140px;
    background: rgba(255, 255, 255, 0.10);
}

.back-link {
    width: fit-content;
    min-height: 44px;
    padding: 0 14px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #E5E7EB;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-weight: 850;
    transition: 0.2s ease;
}

    .back-link:hover {
        color: var(--white);
        background: rgba(255, 255, 255, 0.16);
        transform: translateY(-2px);
    }

.brand-block {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: clamp(18px, 2.4vw, 30px);
}

.brand-badge {
    width: 58px;
    height: 58px;
    border-radius: 20px;
    background: var(--gold);
    color: var(--blue-dark);
    display: grid;
    place-items: center;
    font-weight: 950;
    letter-spacing: -0.04em;
    box-shadow: 0 18px 42px rgba(212, 175, 55, 0.28);
    flex: 0 0 auto;
}

.brand-block strong,
.brand-block span {
    display: block;
}

.brand-block strong {
    font-size: 20px;
}

.brand-block span {
    color: #CBD5E1;
    margin-top: 4px;
    font-size: 14px;
    line-height: 1.45;
}

.hero-copy {
    margin-top: clamp(24px, 3.2vw, 38px);
}

.pill {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    color: var(--gold);
    font-size: 13px;
    font-weight: 950;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-copy h1 {
    margin-top: 22px;
    max-width: 780px;
    font-size: clamp(36px, 5.8vw, 70px);
    line-height: 0.98;
    letter-spacing: -0.065em;
}

.hero-copy p {
    max-width: 700px;
    margin-top: 18px;
    color: #D8E2F0;
    line-height: 1.75;
    font-size: 16px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: clamp(30px, 4vw, 42px);
}

    .feature-grid article {
        min-width: 0;
        padding: 18px;
        border-radius: 22px;
        background: rgba(255, 255, 255, 0.11);
        border: 1px solid rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(14px);
    }

        .feature-grid article > span {
            color: var(--gold);
            font-size: 34px;
        }

    .feature-grid strong {
        display: block;
        margin-top: 10px;
        font-size: 16px;
    }

    .feature-grid small {
        display: block;
        margin-top: 6px;
        color: #D8E2F0;
        line-height: 1.5;
    }

/* =========================
   TARJETAS DERECHA
========================= */

.registration-card,
.result-card {
    width: min(940px, 100%);
    margin-inline: auto;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    border: 1px solid rgba(223, 231, 242, 0.92);
    border-radius: var(--radius-lg);
    padding: clamp(22px, 3vw, 34px);
    box-shadow: var(--shadow);
}

.card-heading {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 26px;
}

    .card-heading > span {
        width: 58px;
        height: 58px;
        border-radius: 20px;
        background: var(--blue-soft);
        color: var(--blue);
        display: grid;
        place-items: center;
        font-size: 34px;
        flex: 0 0 auto;
    }

.card-kicker {
    display: block;
    color: var(--gold);
    font-size: 12px;
    font-weight: 950;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.card-heading h2 {
    margin-top: 6px;
    color: var(--blue-dark);
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.04;
    letter-spacing: -0.05em;
}

.card-heading p {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.65;
}

/* =========================
   FORMULARIO
========================= */

.registration-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.full {
    grid-column: 1 / -1;
}

.form-section {
    margin-top: 4px;
}

    .form-section h3 {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--blue-dark);
        font-size: 17px;
        letter-spacing: -0.015em;
    }

        .form-section h3 span {
            color: var(--gold);
        }

.form-group {
    display: grid;
    gap: 8px;
}

    .form-group label {
        color: var(--blue-dark);
        font-size: 14px;
        font-weight: 900;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 52px;
        border: 1px solid var(--border);
        border-radius: 17px;
        background: var(--bg);
        color: var(--text);
        padding: 0 14px;
        outline: none;
        font-weight: 750;
        transition: 0.2s ease;
    }

    .form-group textarea {
        min-height: 110px;
        padding-block: 13px;
        resize: vertical;
    }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #98A2B3;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--blue);
            background: var(--white);
            box-shadow: 0 0 0 4px rgba(11, 61, 145, 0.12);
        }

    .form-group input[readonly],
    .form-group input:disabled,
    .form-group select:disabled {
        background: #EEF3FA;
        color: #475569;
        border-color: #D8E2F0;
        cursor: not-allowed;
    }

    .form-group small {
        color: var(--muted);
        line-height: 1.5;
        font-size: 13px;
    }

/* =========================
   SELECTOR TIPO
========================= */

.type-selector {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.type-card {
    position: relative;
    cursor: pointer;
    min-height: 130px;
    padding: 20px;
    border-radius: 22px;
    background: var(--bg);
    border: 1px solid var(--border);
    display: grid;
    align-content: center;
    gap: 7px;
    transition: 0.2s ease;
}

    .type-card input {
        position: absolute;
        inset: 0;
        opacity: 0;
        cursor: pointer;
    }

    .type-card > span {
        color: var(--blue);
        font-size: 36px;
    }

    .type-card strong {
        color: var(--blue-dark);
        font-size: 18px;
    }

    .type-card small {
        color: var(--muted);
        line-height: 1.45;
    }

    .type-card:has(input:checked) {
        background: var(--blue-soft);
        border-color: rgba(11, 61, 145, 0.28);
        box-shadow: inset 4px 0 0 var(--gold);
    }

        .type-card:has(input:checked) > span {
            color: var(--gold);
        }

    .type-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
    }

/* Selector de pregunta */
.student-origin-gate {
    display: grid;
    gap: 14px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(11, 61, 145, 0.06);
    border: 1px solid rgba(11, 61, 145, 0.14);
}

.origin-copy {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

    .origin-copy > span {
        color: var(--gold);
        font-size: 30px;
    }

    .origin-copy strong {
        display: block;
        color: var(--blue-dark, #061E45);
        font-weight: 950;
    }

    .origin-copy p {
        margin-top: 3px;
        color: var(--text, #172033);
        font-weight: 850;
    }

.origin-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.origin-option {
    min-height: 54px;
    padding: 12px 14px;
    border-radius: 18px;
    border: 1px solid var(--border, #DFE7F2);
    background: var(--white, #FFFFFF);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    color: var(--blue-dark, #061E45);
    cursor: pointer;
    transition: 0.2s ease;
}

    .origin-option:hover {
        border-color: var(--blue, #0B3D91);
        transform: translateY(-1px);
    }

    .origin-option input {
        accent-color: var(--blue, #0B3D91);
    }

#studentOriginHelp {
    color: var(--muted, #667085);
    line-height: 1.45;
}

.type-card.blocked-type {
    opacity: 0.45;
    filter: grayscale(1);
    cursor: not-allowed;
}

    .type-card.blocked-type input {
        cursor: not-allowed;
    }

.type-card.allowed-type {
    border-color: rgba(11, 61, 145, 0.45);
    box-shadow: 0 12px 28px rgba(11, 61, 145, 0.10);
}

@media (max-width: 680px) {
    .origin-options {
        grid-template-columns: 1fr;
    }
}

/* =========================
   LOOKUP INTERNO
========================= */

.lookup-panel {
    padding: 18px;
    border-radius: 24px;
    background: linear-gradient(180deg, #F8FAFC, #F4F7FB);
    border: 1px solid var(--border);
    display: grid;
    gap: 16px;
}

.lookup-copy {
    display: grid;
    gap: 5px;
}

    .lookup-copy strong {
        color: var(--blue-dark);
        font-size: 17px;
    }

    .lookup-copy span {
        color: var(--muted);
        line-height: 1.55;
    }

.lookup-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
}

/* =========================
   INFO BOX
========================= */

.info-box {
    padding: 16px;
    border-radius: 22px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--gold-soft);
    color: #8A5A00;
    border: 1px solid rgba(212, 175, 55, 0.26);
}

    .info-box > span {
        color: var(--gold);
        font-size: 32px;
        flex: 0 0 auto;
    }

    .info-box strong {
        display: block;
    }

    .info-box p {
        margin-top: 4px;
        line-height: 1.6;
    }

/* =========================
   ALERTAS
========================= */

.registration-alert {
    padding: 14px 16px;
    border-radius: 16px;
    font-weight: 850;
    line-height: 1.6;
    border: 1px solid transparent;
}

    .registration-alert.success {
        background: var(--success-soft);
        color: #166534;
        border-color: rgba(22, 163, 74, 0.18);
    }

    .registration-alert.error {
        background: var(--danger-soft);
        color: #991B1B;
        border-color: rgba(220, 38, 38, 0.18);
    }

    .registration-alert.warning {
        background: var(--warning-soft);
        color: #92400E;
        border-color: rgba(245, 158, 11, 0.20);
    }

    .registration-alert.info {
        background: var(--blue-soft);
        color: var(--blue);
        border-color: rgba(11, 61, 145, 0.16);
    }

/* =========================
   BOTONES
========================= */

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 4px;
}

.primary-button,
.secondary-button,
.ghost-button {
    min-height: 48px;
    padding: 0 16px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 950;
    transition: 0.2s ease;
    width: fit-content;
}

.primary-button {
    background: var(--blue);
    color: var(--white);
    box-shadow: 0 14px 32px rgba(11, 61, 145, 0.22);
}

    .primary-button:hover {
        background: var(--blue-dark);
        transform: translateY(-2px);
    }

.secondary-button,
.ghost-button {
    background: var(--blue-soft);
    color: var(--blue);
}

    .secondary-button:hover,
    .ghost-button:hover {
        background: #DCEAFF;
        transform: translateY(-2px);
    }

/* =========================
   RESULTADO
========================= */

.result-card {
    text-align: center;
}

    .result-card > span {
        color: var(--success);
        font-size: 70px;
    }

    .result-card h2 {
        margin-top: 10px;
        color: var(--blue-dark);
        font-size: clamp(30px, 4vw, 46px);
        letter-spacing: -0.05em;
        line-height: 1.05;
    }

    .result-card p {
        max-width: 680px;
        margin: 12px auto 0;
        color: var(--muted);
        line-height: 1.7;
    }

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 24px;
    text-align: left;
}

    .result-grid article {
        min-width: 0;
        padding: 16px;
        border-radius: 20px;
        background: var(--bg);
        border: 1px solid var(--border);
    }

    .result-grid span {
        display: block;
        color: var(--muted);
        font-size: 12px;
        font-weight: 950;
        text-transform: uppercase;
        letter-spacing: 0.06em;
    }

    .result-grid strong {
        display: block;
        margin-top: 6px;
        color: var(--blue-dark);
        font-size: 16px;
        overflow-wrap: anywhere;
    }

.result-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1180px) {
    :root {
        --left-panel-width: 44%;
    }

    .visual-panel {
        padding: 34px;
    }

    .hero-copy h1 {
        font-size: clamp(34px, 5vw, 54px);
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 960px) {
    .registration-page {
        display: block;
        min-height: 100vh;
    }

    .visual-panel {
        position: relative;
        height: auto;
        min-height: 620px;
        padding: 34px 22px;
    }

    .form-panel {
        height: auto;
        overflow: visible;
        padding: 22px;
    }

    .visual-content {
        width: min(760px, 100%);
        margin-inline: auto;
    }

    .hero-copy {
        margin-top: 30px;
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .visual-panel {
        min-height: auto;
        padding: 28px 18px;
    }

    .brand-block {
        margin-top: 22px;
    }

    .hero-copy {
        margin-top: 26px;
    }

        .hero-copy h1 {
            font-size: clamp(32px, 11vw, 46px);
        }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .registration-card,
    .result-card {
        border-radius: 24px;
        padding: 22px;
    }

    .card-heading {
        display: grid;
    }

    .registration-form,
    .type-selector,
    .lookup-row,
    .result-grid {
        grid-template-columns: 1fr;
    }

        .lookup-row .secondary-button {
            width: 100%;
        }

    .form-actions,
    .result-actions {
        display: grid;
    }

    .primary-button,
    .secondary-button,
    .ghost-button {
        width: 100%;
    }
}

@media (max-width: 440px) {
    .visual-panel {
        padding: 24px 14px;
    }

    .form-panel {
        padding: 14px;
    }

    .registration-card,
    .result-card {
        padding: 18px;
        border-radius: 22px;
    }

    .brand-badge {
        width: 50px;
        height: 50px;
        border-radius: 16px;
    }

    .brand-block {
        align-items: flex-start;
    }

        .brand-block strong {
            font-size: 17px;
        }

        .brand-block span {
            font-size: 12.5px;
        }

    .back-link {
        width: 100%;
        justify-content: center;
    }

    .hero-copy h1 {
        font-size: 32px;
    }

    .hero-copy p {
        font-size: 15px;
    }

    .type-card {
        min-height: 118px;
        padding: 17px;
    }

    .form-group input,
    .form-group select {
        min-height: 50px;
    }
}

/* =========================
   MOTION SAFE
========================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
        animation: none !important;
    }
}