:root {
    --primary: #0d6efd;
    --primary-hover: #0b5ed7;
    --primary-soft: #e8f1ff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --card-bg: #ffffff;
    --page-bg: #f1f5f9;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(145deg, #e0f2fe 0%, #f1f5f9 45%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    color: var(--text);
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(15, 23, 42, 0.04);
    padding: 40px 36px 36px;
    position: relative;
    overflow: hidden;
}

    .login-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, #0d6efd, #38bdf8);
    }

.login-logo {
    text-align: center;
    margin-bottom: 28px;
}

    .login-logo img {
        max-height: 120px;
        max-width: 320px;
        object-fit: contain;
    }

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

    .login-header h1 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0 0 6px;
        color: var(--text);
        letter-spacing: -0.02em;
    }

    .login-header p {
        margin: 0;
        font-size: 0.925rem;
        color: var(--text-muted);
    }

.form-group {
    margin-bottom: 20px;
}

.input-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

    .input-wrapper .material-symbols-outlined {
        position: absolute;
        left: 14px;
        font-size: 20px;
        color: #94a3b8;
        pointer-events: none;
        transition: color 0.2s;
    }

.form-control {
    width: 100%;
    height: 48px;
    padding: 0 16px 0 46px;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    font-size: 0.95rem;
    background: #f8fafc;
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

    .form-control:focus {
        outline: none;
        border-color: var(--primary);
        background: #fff;
        box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.12);
    }

        .form-control:focus + .material-symbols-outlined,
        .input-wrapper:focus-within .material-symbols-outlined {
            color: var(--primary);
        }

/* Password toggle */
.password-field .form-control {
    padding-right: 48px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    color: #94a3b8;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
}

    .toggle-password:hover {
        color: var(--primary);
        background: var(--primary-soft);
    }

    .toggle-password .material-symbols-outlined {
        position: static;
        font-size: 20px;
        pointer-events: none;
    }

/* Validation */
.text-danger {
    font-size: 0.8125rem;
    margin-top: 6px;
    display: block;
}

/* Options row */
.login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 8px 0 28px;
    gap: 12px;
}

.custom-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

    .custom-checkbox input[type="checkbox"] {
        width: 18px;
        height: 18px;
        accent-color: var(--primary);
        cursor: pointer;
        margin: 0;
    }

    .custom-checkbox label {
        font-size: 0.875rem;
        color: var(--text-muted);
        margin: 0;
        cursor: pointer;
    }

.forgot-link {
    font-size: 0.875rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

    .forgot-link:hover {
        color: var(--primary-hover);
        text-decoration: underline;
    }

/* Submit button */
.btn-login {
    width: 100%;
    height: 50px;
    border: none;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 4px 14px rgba(13, 110, 253, 0.35);
}

    .btn-login:hover:not(:disabled) {
        background: var(--primary-hover);
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(13, 110, 253, 0.4);
    }

    .btn-login:active:not(:disabled) {
        transform: translateY(0);
    }

    .btn-login:disabled {
        opacity: 0.7;
        cursor: not-allowed;
    }

/* Error message */
.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 0.875rem;
    margin-bottom: 20px;
}

/* Footer note */
.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px 28px;
        border-radius: 16px;
    }

    .login-header h1 {
        font-size: 1.35rem;
    }
}