:root {
    --primary: #43A7A5;
    --primary-deep: #2f8482;
    --surface: #C4F1F8;
    --background: #EFFAFD;
    --background-strong: #dcf4f8;
    --text: #16373b;
    --muted: #507277;
    --border: rgba(67, 167, 165, 0.28);
    --shadow: 0 22px 50px rgba(67, 167, 165, 0.16);
    --danger: #b42318;
}

* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    overflow-x: hidden;
    background:
        radial-gradient(circle at top left, rgba(196, 241, 248, 0.88), transparent 40%),
        radial-gradient(circle at bottom right, rgba(67, 167, 165, 0.12), transparent 42%),
        var(--background);
    color: var(--text);
}

.login-shell {
    min-height: 100vh;
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding:
        calc(28px + env(safe-area-inset-top))
        calc(20px + env(safe-area-inset-right))
        calc(28px + env(safe-area-inset-bottom))
        calc(20px + env(safe-area-inset-left));
}

.login-card {
    width: min(100%, 460px);
    max-width: 100%;
    background: linear-gradient(180deg, rgba(196, 241, 248, 0.9), rgba(255, 255, 255, 0.95));
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 34px;
    box-shadow: var(--shadow);
}

.brand-kicker {
    margin: 0 0 8px;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--primary);
}

#login-title {
    margin: 0;
    font-size: clamp(2rem, 4vw, 2.35rem);
    line-height: 1;
    color: var(--primary);
}

.brand-text {
    margin: 14px 0 0;
    color: var(--muted);
    line-height: 1.6;
    font-size: 0.98rem;
}

.login-form {
    margin-top: 28px;
    display: grid;
    gap: 16px;
}

.field {
    display: grid;
    gap: 8px;
}

.field span {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text);
}

.field input {
    width: 100%;
    border: 1px solid rgba(67, 167, 165, 0.28);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.85);
    padding: 15px 16px;
    font-size: 1rem;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67, 167, 165, 0.14);
}

.primary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 16px;
    padding: 14px 18px;
    background: var(--primary);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 12px 24px rgba(67, 167, 165, 0.22);
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.primary-button:hover {
    background: var(--primary-deep);
    transform: translateY(-1px);
}

.primary-button:disabled {
    opacity: 0.7;
    cursor: wait;
    transform: none;
}

.status {
    margin: 0;
    min-height: 1.4rem;
    color: var(--muted);
    font-size: 0.94rem;
}

.status.error {
    color: var(--danger);
}

@media (max-width: 520px) {
    .login-shell {
        padding:
            calc(14px + env(safe-area-inset-top))
            calc(12px + env(safe-area-inset-right))
            calc(14px + env(safe-area-inset-bottom))
            calc(12px + env(safe-area-inset-left));
    }

    .login-card {
        width: 100%;
        padding: 22px;
        border-radius: 22px;
    }

    .login-form {
        gap: 14px;
    }

    .field input,
    .primary-button {
        min-height: 48px;
    }
}

@media (max-width: 430px) {
    .login-card {
        padding: 20px 18px;
        border-radius: 20px;
    }

    #login-title {
        font-size: clamp(1.7rem, 8vw, 2rem);
    }

    .brand-text {
        font-size: 0.94rem;
    }

    .field input {
        padding: 14px 14px;
        font-size: 1rem;
    }

    .primary-button {
        width: 100%;
        padding: 14px 16px;
    }
}