:root {
    --background: #eef2f6;
    --surface: #ffffff;
    --surface-soft: #f7f9fb;
    --primary: #174a6e;
    --primary-hover: #103a58;
    --accent: #26a69a;
    --text: #17212b;
    --text-soft: #66727f;
    --border: #d9e1e8;
    --danger: #b42318;
    --danger-background: #fef3f2;
    --shadow: 0 24px 60px rgba(17, 36, 52, 0.14);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
}

body {
    background: var(--background);
    color: var(--text);
    font-family:
        Inter,
        "Segoe UI",
        Arial,
        sans-serif;
}

button,
input {
    font: inherit;
}

.login-page {
    display: grid;
    grid-template-columns: minmax(420px, 1.1fr) minmax(400px, 0.9fr);
    min-height: 100vh;
}

.login-presentation {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100vh;
    padding: 48px 64px;
    color: #ffffff;
    background:
        linear-gradient(
            145deg,
            rgba(10, 46, 70, 0.98),
            rgba(23, 74, 110, 0.92)
        );
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-symbol {
    display: inline-grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.48);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.brand h1,
.brand p {
    margin: 0;
}

.brand h1 {
    font-size: 22px;
}

.brand p {
    margin-top: 3px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 13px;
}

.presentation-content {
    max-width: 620px;
    margin: auto 0;
    padding: 70px 0;
}

.presentation-label {
    display: inline-block;
    margin-bottom: 18px;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #b9ebe4;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.presentation-content h2 {
    max-width: 570px;
    margin: 0;
    font-size: clamp(38px, 5vw, 68px);
    line-height: 1.04;
    letter-spacing: -0.045em;
}

.presentation-content p {
    max-width: 570px;
    margin: 28px 0;
    color: rgba(255, 255, 255, 0.76);
    font-size: 18px;
    line-height: 1.7;
}

.presentation-content ul {
    display: grid;
    gap: 13px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.presentation-content li {
    position: relative;
    padding-left: 28px;
    color: rgba(255, 255, 255, 0.86);
}

.presentation-content li::before {
    position: absolute;
    top: 2px;
    left: 0;
    content: "✓";
    color: #75d8cb;
    font-weight: 800;
}

.login-area {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 40px;
}

.login-card {
    width: min(100%, 460px);
    padding: 44px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.mobile-brand {
    display: none;
}

.login-header {
    margin-bottom: 30px;
}

.eyebrow {
    display: block;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.login-header h2 {
    margin: 0 0 10px;
    font-size: 30px;
    letter-spacing: -0.03em;
}

.login-header p {
    margin: 0;
    color: var(--text-soft);
    line-height: 1.6;
}

.alert {
    margin-bottom: 22px;
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 14px;
}

.alert-error {
    border: 1px solid #fecdca;
    background: var(--danger-background);
    color: var(--danger);
}

.login-form {
    display: grid;
    gap: 22px;
}

.form-group {
    display: grid;
    gap: 9px;
}

.form-group label {
    color: #34404b;
    font-size: 14px;
    font-weight: 700;
}

.form-group input {
    width: 100%;
    height: 50px;
    padding: 0 15px;
    border: 1px solid var(--border);
    border-radius: 12px;
    outline: none;
    background: var(--surface-soft);
    color: var(--text);
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease;
}

.form-group input:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(23, 74, 110, 0.1);
}

.password-wrapper {
    position: relative;
}

.password-wrapper input {
    padding-right: 88px;
}

.show-password-button {
    position: absolute;
    top: 50%;
    right: 10px;
    border: 0;
    background: transparent;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transform: translateY(-50%);
}

.primary-button {
    min-height: 52px;
    border: 0;
    border-radius: 12px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 800;
    cursor: pointer;
    transition:
        background 0.2s ease,
        transform 0.2s ease;
}

.primary-button:hover {
    background: var(--primary-hover);
}

.primary-button:active {
    transform: translateY(1px);
}

.primary-button:disabled {
    cursor: wait;
    opacity: 0.7;
}

.login-footer {
    margin-top: 30px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
}

.login-footer p {
    margin: 0;
    color: var(--text-soft);
    font-size: 12px;
    text-align: center;
}

@media (max-width: 980px) {
    .login-page {
        grid-template-columns: 1fr;
    }

    .login-presentation {
        display: none;
    }

    .login-area {
        padding: 24px;
    }

    .mobile-brand {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 30px;
    }

    .mobile-brand .brand-symbol {
        border-color: var(--border);
        background: var(--primary);
    }
}

@media (max-width: 520px) {
    .login-area {
        padding: 0;
        background: var(--surface);
    }

    .login-card {
        min-height: 100vh;
        padding: 32px 24px;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }
}