* {
    box-sizing: border-box;
}

:root {
    --navy: #0b1f3a;
    --blue: #274975;
    --blue-soft: #eaf1fb;
    --page: #f5f9ff;
    --text-muted: #718096;
    --white: #ffffff;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    color: var(--navy);
    background:
        radial-gradient(circle at 12% 18%, rgba(39, 73, 117, 0.08), transparent 28%),
        radial-gradient(circle at 88% 80%, rgba(29, 78, 216, 0.07), transparent 25%),
        var(--page);
    font-family: "DM Sans", system-ui, sans-serif;
}

a {
    color: var(--blue);
}

.signup-header {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 24px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    color: var(--navy);
    font-family: "Lora", Georgia, serif;
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-decoration: none;
}

.brand span {
    color: #4779bd;
}

.home-link {
    color: #526782;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

.home-link:hover,
.back-link a:hover {
    color: #1d4ed8;
}

.signup-layout {
    width: min(1080px, calc(100% - 40px));
    margin: 28px auto 48px;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: clamp(36px, 7vw, 90px);
    flex: 1;
}

.welcome-panel {
    padding: 24px 0;
}

.eyebrow {
    margin: 0 0 16px;
    color: #4779bd;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.16em;
}

.welcome-panel h1 {
    margin: 0 0 22px;
    font-family: "Lora", Georgia, serif;
    font-size: clamp(2.5rem, 5vw, 4.2rem);
    font-weight: 500;
    line-height: 1.12;
    letter-spacing: -0.045em;
}

.welcome-panel h1 em {
    color: #315d91;
    font-weight: 400;
}

.welcome-copy {
    max-width: 430px;
    margin: 0;
    color: #60738c;
    font-size: 1.02rem;
    line-height: 1.8;
}

.welcome-note {
    max-width: 390px;
    margin-top: 42px;
    padding: 17px 19px;
    display: flex;
    align-items: flex-start;
    gap: 13px;
    border: 1px solid #dce7f5;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.65);
}

.note-mark {
    color: #4779bd;
    font-size: 1.25rem;
}

.welcome-note p {
    margin: 0;
    color: #526782;
    font-size: 0.9rem;
    line-height: 1.6;
}

.form-panel {
    width: 100%;
    max-width: 520px;
    justify-self: end;
    padding: clamp(26px, 4vw, 42px);
    border: 1px solid #e2eaf4;
    border-radius: 22px;
    background: var(--white);
    box-shadow: 0 20px 60px rgba(11, 31, 58, 0.09);
}

.form-heading {
    margin-bottom: 27px;
}

.form-heading .eyebrow {
    margin-bottom: 10px;
}

.form-heading h2 {
    margin: 0 0 8px;
    font-family: "Lora", Georgia, serif;
    font-size: clamp(1.7rem, 3vw, 2.1rem);
    font-weight: 600;
}

.form-heading > p:last-child {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.field {
    margin-bottom: 17px;
}

.field label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.86rem;
    font-weight: 700;
}

.field input {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid #d9e2ee;
    border-radius: 10px;
    outline: none;
    background: #fbfdff;
    color: var(--navy);
    font: inherit;
    font-size: 0.9rem;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

.field input:focus {
    border-color: #4779bd;
    box-shadow: 0 0 0 3px rgba(71, 121, 189, 0.12);
}

.field input::placeholder {
    color: #a1adbd;
}

.password-wrap {
    position: relative;
}

.password-wrap input {
    padding-right: 62px;
}

.toggle-password {
    position: absolute;
    top: 50%;
    right: 13px;
    transform: translateY(-50%);
    padding: 5px;
    border: 0;
    background: transparent;
    color: var(--blue);
    cursor: pointer;
    font: inherit;
    font-size: 0.8rem;
    font-weight: 700;
}

.field-hint {
    display: block;
    margin-top: 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.terms {
    margin: 7px 0 18px;
    display: flex;
    align-items: flex-start;
    gap: 9px;
    color: #60738c;
    font-size: 0.8rem;
    line-height: 1.5;
}

.terms input {
    margin-top: 3px;
    accent-color: var(--blue);
}

.terms a,
.signin-prompt a {
    color: var(--blue);
    font-weight: 700;
    text-decoration: none;
}

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

.form-message {
    min-height: 0;
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.5;
}

.form-message:not(:empty) {
    margin-bottom: 13px;
}

.form-message.error {
    color: #b42318;
}

.form-message.success {
    color: #176b45;
}

.submit-button {
    width: 100%;
    min-height: 51px;
    padding: 13px 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 0;
    border-radius: 11px;
    background: var(--navy);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    transition: background 180ms ease, box-shadow 180ms ease;
}

.submit-button:hover {
    background: #274975;
}

.signin-prompt {
    margin: 21px 0 0;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.85rem;
}

.back-link {
    margin: 17px 0 0;
    text-align: center;
    font-size: 0.82rem;
}

.back-link a {
    color: #718096;
    text-decoration: none;
}

.signup-footer {
    width: min(1080px, calc(100% - 40px));
    margin: 0 auto;
    padding: 19px 0 24px;
    border-top: 1px solid #dce5f0;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: #8292a8;
    font-size: 0.78rem;
}

/* Tablet and mobile */
@media (max-width: 760px) {
    .signup-layout {
        max-width: 540px;
        margin-top: 12px;
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .welcome-panel {
        padding: 10px 4px 0;
    }

    .welcome-panel h1 {
        font-size: clamp(2.4rem, 9vw, 3.4rem);
    }

    .welcome-note {
        display: none;
    }

    .form-panel {
        max-width: none;
        justify-self: stretch;
    }
}

@media (max-width: 480px) {
    .signup-header {
        padding: 19px 20px;
    }

    .signup-layout {
        width: calc(100% - 28px);
        margin-bottom: 30px;
    }

    .form-panel {
        padding: 25px 19px;
        border-radius: 17px;
    }

    .signup-footer {
        width: calc(100% - 36px);
        flex-direction: column;
        gap: 6px;
    }
}

/* Submission state */
.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}