:root {
    --registration-blue: #4f83ff;
    --registration-blue-dark: #3972f1;
    --registration-blue-soft: #eff4ff;
    --registration-text: #0f172a;
    --registration-muted: #98a2b3;
    --registration-label: #667085;
    --registration-line: #e3e7ed;
    --registration-page: #f8fafc;
    --registration-card: #ffffff;
    --registration-navy: #111827;
    --registration-danger: #d92d20;
    --registration-success: #067647;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    color: var(--registration-text);
    background: var(--registration-page);
    font-family:
        Inter,
        ui-sans-serif,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

button,
input {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.registration-page {
    min-height: 100vh;
    padding: 32px 24px 48px;
}

.registration-layout {
    width: min(1006px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 526px) minmax(380px, 450px);
    gap: 28px;
    align-items: start;
}

.registration-card,
.benefits-card {
    background: var(--registration-card);
    border: 1px solid #dfe3e8;
    border-radius: 18px;
    box-shadow:
        0 2px 4px rgba(16, 24, 40, .04),
        0 10px 28px rgba(16, 24, 40, .035);
}

.registration-card {
    overflow: hidden;
}

.auth-tabs {
    height: 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid #edf0f3;
}

.auth-tab {
    position: relative;
    display: grid;
    place-items: center;
    color: #9aa1b2;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
}

.auth-tab.active {
    color: var(--registration-blue);
}

.auth-tab.active::after {
    position: absolute;
    right: 20px;
    bottom: 0;
    left: 20px;
    height: 2px;
    background: var(--registration-blue);
    content: "";
}

.registration-content {
    padding: 35px 35px 34px;
}

.registration-heading {
    margin-bottom: 29px;
}

.registration-heading h1,
.benefits-content h2 {
    margin: 0;
    color: #0b1324;
    letter-spacing: -.035em;
}

.registration-heading h1 {
    font-size: 27px;
    line-height: 1.2;
}

.registration-heading p {
    margin: 5px 0 0;
    color: var(--registration-muted);
    font-size: 15px;
    line-height: 1.5;
}

.section-label,
.form-label {
    color: var(--registration-label);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .025em;
}

.section-label {
    margin: 0 0 14px;
}

.social-buttons {
    display: grid;
    gap: 12px;
}

.social-button {
    width: 100%;
    min-height: 55px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 13px;
    font-size: 16px;
    font-weight: 650;
    cursor: pointer;
    transition:
        border-color .16s ease,
        box-shadow .16s ease,
        transform .16s ease;
}

.social-button:hover {
    transform: translateY(-1px);
}

.google-button {
    color: #1f2937;
    background: #fff;
    border: 1px solid #d9dee6;
}

.google-button:hover {
    border-color: #bfc7d2;
    box-shadow: 0 7px 18px rgba(16, 24, 40, .06);
}

.apple-button {
    color: #fff;
    background: var(--registration-navy);
    border: 1px solid var(--registration-navy);
}

.apple-button:hover {
    box-shadow: 0 8px 19px rgba(17, 24, 39, .18);
}

.google-mark {
    width: 23px;
    height: 23px;
    display: grid;
    place-items: center;
    color: #4285f4;
    font-size: 21px;
    font-weight: 900;
}

.apple-mark {
    position: relative;
    width: 22px;
    height: 23px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 19px;
}

.apple-mark::before {
    position: absolute;
    top: -4px;
    left: 12px;
    font-size: 11px;
    content: "◆";
    transform: rotate(20deg);
}

.registration-divider {
    margin: 25px 0 27px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 14px;
    align-items: center;
    color: var(--registration-muted);
    font-size: 14px;
}

.registration-divider::before,
.registration-divider::after {
    height: 1px;
    background: #dfe4ea;
    content: "";
}

.account-type-switch {
    margin-bottom: 35px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.account-type-button {
    min-height: 80px;
    padding: 11px 12px;
    color: #667085;
    background: #fff;
    border: 2px solid #e1e5eb;
    border-radius: 14px;
    display: grid;
    gap: 6px;
    place-items: center;
    font-size: 14px;
    font-weight: 650;
    cursor: pointer;
    transition:
        color .15s ease,
        background .15s ease,
        border-color .15s ease,
        box-shadow .15s ease;
}

.account-type-button:hover {
    border-color: #a9c2ff;
}

.account-type-button.active {
    color: var(--registration-blue);
    background: var(--registration-blue-soft);
    border-color: var(--registration-blue);
    box-shadow: 0 0 0 1px rgba(79, 131, 255, .04);
}

.account-type-icon {
    font-size: 21px;
    line-height: 1;
}

.registration-form {
    display: block;
}

.form-field {
    min-width: 0;
    margin: 0 0 24px;
    padding: 0;
    border: 0;
}

.form-label {
    display: block;
    margin: 0 0 10px;
}

.form-input {
    width: 100%;
    height: 50px;
    padding: 0 15px;
    color: #344054;
    background: #fbfcfe;
    border: 1px solid #d9dee6;
    border-radius: 14px;
    outline: none;
    font-size: 16px;
    transition:
        border-color .16s ease,
        background .16s ease,
        box-shadow .16s ease;
}

.form-input::placeholder {
    color: #98a2b3;
}

.form-input:focus {
    background: #fff;
    border-color: #75a1ff;
    box-shadow: 0 0 0 4px rgba(79, 131, 255, .12);
}

.form-input.readonly-input {
    color: #596173;
    border-color: #e1e5eb;
    background: #f2f4f7;
    cursor: default;
}

.form-input.readonly-input:focus {
    border-color: #d9dee6;
    background: #f2f4f7;
    box-shadow: none;
}

.form-input.user-invalid {
    border-color: #f04438;
    box-shadow: 0 0 0 3px rgba(240, 68, 56, .08);
}

.field-validation {
    min-height: 18px;
    margin-top: 6px;
    display: block;
    color: var(--registration-danger);
    font-size: 12px;
    line-height: 1.4;
}

.field-validation:empty {
    min-height: 0;
    margin-top: 0;
}

.terms-validation {
    margin: -15px 0 18px 30px;
}

.company-type-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.company-type-option {
    min-width: 0;
    cursor: pointer;
}

.company-type-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.company-type-option span {
    min-height: 46px;
    padding: 8px;
    display: grid;
    place-items: center;
    color: #5f687a;
    background: #f8fafc;
    border: 1px solid #dfe4ea;
    border-radius: 13px;
    font-size: 13px;
    transition:
        color .15s ease,
        background .15s ease,
        border-color .15s ease;
}

.company-type-option input:focus-visible + span {
    outline: 3px solid rgba(79, 131, 255, .2);
    outline-offset: 2px;
}

.company-type-option input:checked + span {
    color: var(--registration-blue);
    background: #edf3ff;
    border-color: #c6d6ff;
}

.terms-row {
    margin: 1px 0 22px;
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    gap: 11px;
    align-items: start;
    color: #667085;
    font-size: 13px;
    line-height: 1.55;
    cursor: pointer;
}

.terms-row input {
    width: 19px;
    height: 19px;
    margin: 1px 0 0;
    accent-color: var(--registration-blue);
    cursor: pointer;
}

.terms-row a,
.login-prompt a {
    color: #3d78f5;
    font-weight: 650;
    text-decoration: none;
}

.terms-row a:hover,
.login-prompt a:hover {
    text-decoration: underline;
}

.registration-legal {
  max-width: 430px;
  margin: 14px auto 0;
  color: #98a2b3;
  font-size: 12px;
  line-height: 1.55;
  text-align: center;
}

.registration-legal a {
  color: #4f86f7;
  font-weight: 700;
  text-decoration: none;
}

.registration-legal a:hover {
  text-decoration: underline;
}

.registration-submit {
    width: 100%;
    min-height: 55px;
    padding: 0 18px;
    color: #fff;
    background: linear-gradient(
        135deg,
        var(--registration-blue),
        var(--registration-blue-dark));
    border: 0;
    border-radius: 14px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(79, 131, 255, .2);
    transition:
        filter .16s ease,
        opacity .16s ease,
        transform .16s ease;
}

.registration-submit:hover:not(:disabled) {
    filter: brightness(.98);
    transform: translateY(-1px);
}

.registration-submit:disabled {
    color: rgba(255, 255, 255, .94);
    background: #9dbcf5;
    box-shadow: none;
    cursor: not-allowed;
}

.registration-feedback {
    margin: 14px 0 0;
    padding: 11px 13px;
    color: var(--registration-danger);
    background: #fff4f2;
    border: 1px solid #fecdca;
    border-radius: 11px;
    font-size: 13px;
    line-height: 1.45;
}

.registration-feedback.validation-summary-valid,
.registration-feedback:empty {
    display: none;
}

.registration-feedback ul {
    margin: 0;
    padding-left: 18px;
}

.registration-feedback.success {
    color: var(--registration-success);
    background: #ecfdf3;
    border-color: #abefc6;
}

.registration-note {
    max-width: 340px;
    margin: 22px auto 0;
    color: #a1a9ba;
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
}

.invitation-summary {
    margin: 0 0 28px;
    padding: 16px;
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    color: #344054;
    border: 1px solid #cddcff;
    border-radius: 14px;
    background: #f5f8ff;
}

.invitation-summary > span {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    color: var(--registration-blue);
    border-radius: 11px;
    background: #e8f0ff;
    font-size: 19px;
}

.invitation-summary strong {
    display: block;
    font-size: 14px;
}

.invitation-summary p {
    margin: 4px 0 0;
    color: #667085;
    font-size: 12px;
}

.invitation-error {
    padding: 21px;
    color: #8f2f3d;
    border: 1px solid #f0c3ca;
    border-radius: 14px;
    background: #fff5f6;
}

.invitation-error strong {
    display: block;
    font-size: 15px;
}

.invitation-error p {
    margin: 7px 0 15px;
    font-size: 13px;
    line-height: 1.5;
}

.invitation-error a {
    min-height: 38px;
    padding: 0 13px;
    display: inline-flex;
    align-items: center;
    color: #fff;
    border-radius: 10px;
    background: var(--registration-blue);
    font-size: 12px;
    font-weight: 750;
    text-decoration: none;
}

.login-prompt {
    margin: 23px 0 0;
    color: #a1a9ba;
    font-size: 14px;
    text-align: center;
}

.benefits-card {
    position: sticky;
    top: 32px;
    overflow: hidden;
}

.benefits-accent {
    height: 4px;
    background: var(--registration-blue);
}

.benefits-content {
    padding: 36px 34px 37px;
}

.benefits-eyebrow {
    margin: 0 0 14px;
    color: var(--registration-blue);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: .14em;
}

.benefits-content h2 {
    max-width: 350px;
    font-size: 25px;
    line-height: 1.15;
}

.benefits-tabs {
    margin: 35px 0 25px;
    padding: 3px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #f7f8fa;
    border: 1px solid #edf0f3;
    border-radius: 13px;
}

.benefits-tab {
    min-height: 42px;
    padding: 8px 12px;
    color: #98a2b3;
    background: transparent;
    border: 0;
    border-radius: 11px;
    font-weight: 700;
    cursor: pointer;
}

.benefits-tab.active {
    color: var(--registration-blue);
    background: #fff;
    box-shadow:
        0 1px 3px rgba(16, 24, 40, .08),
        0 2px 8px rgba(16, 24, 40, .04);
}

.benefits-panel {
    display: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.benefits-panel.active {
    display: grid;
}

.benefit-item {
    min-height: 145px;
    padding: 20px;
    background: #fff;
    border: 1px solid #e8ebef;
    border-radius: 15px;
    box-shadow:
        0 1px 2px rgba(16, 24, 40, .04),
        0 5px 13px rgba(16, 24, 40, .035);
}

.benefit-item p {
    min-height: 37px;
    margin: 0 0 5px;
    color: #525d70;
    font-size: 14px;
    line-height: 1.2;
}

.benefit-item strong {
    display: block;
    color: var(--registration-blue);
    font-size: 24px;
    line-height: 1.16;
}

.benefit-item .benefit-icons {
    color: #0f172a;
    font-size: 22px;
    letter-spacing: .05em;
}

.benefit-item span {
    display: block;
    margin-top: 9px;
    color: #a0a8b8;
    font-size: 13px;
    line-height: 1.45;
}

.benefits-tip {
    margin-top: 20px;
    padding: 16px;
    color: #4c7df6;
    background: #f7faff;
    border: 1px dashed #bcd0ff;
    border-radius: 13px;
    font-size: 13px;
    line-height: 1.55;
}

.benefits-disclaimer {
    margin: 30px 0 0;
    color: #a1a9ba;
    font-size: 12px;
    line-height: 1.55;
}

.is-hidden {
    display: none !important;
}

@media (max-width: 960px) {
    .registration-layout {
        max-width: 670px;
        grid-template-columns: 1fr;
    }

    .benefits-card {
        position: static;
    }
}

@media (max-width: 620px) {
    .registration-page {
        padding: 14px 12px 32px;
    }

    .registration-content,
    .benefits-content {
        padding: 27px 21px;
    }

    .auth-tab.active::after {
        right: 10px;
        left: 10px;
    }

    .registration-heading h1 {
        font-size: 24px;
    }

    .account-type-switch,
    .company-type-options,
    .benefits-panel.active {
        grid-template-columns: 1fr;
    }

    .account-type-button {
        min-height: 68px;
        grid-template-columns: auto auto;
        justify-content: center;
    }

    .benefits-content h2 {
        font-size: 23px;
    }

    .benefit-item {
        min-height: 0;
    }
}

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

/* Student registration */
.account-type-switch { grid-template-columns:repeat(3,minmax(0,1fr)); }
.account-type-button { min-width:0; }
.student-registration-note { padding:16px; margin:24px 0 0; border:1px solid #ddd5ff; border-radius:14px; background:#f2efff; color:#5b45eb; font-size:14px; line-height:1.5; }
.student-only-fields[hidden], .student-registration-note[hidden] { display:none; }
.student-only-fields { display:grid; gap:24px; }
.student-year-field { border:0; padding:0; margin:0; min-width:0; }
.student-year-options { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:10px; }
.student-year-options label { position:relative; cursor:pointer; }
.student-year-options input { position:absolute; opacity:0; width:100%; height:100%; margin:0; cursor:pointer; }
.student-year-options span { display:grid; place-items:center; min-height:46px; border:1px solid #e1e4ee; border-radius:14px; background:#f7f8fc; color:#727d91; }
.student-year-options input:checked + span { background:#eff3ff; border-color:#afc5ff; color:#477bff; }
.student-year-options input:focus-visible + span { outline:2px solid #477bff; outline-offset:2px; }
@media (max-width:480px) { .account-type-button { padding:12px 5px; font-size:12px; } }