:root {
    --google-gray: #f1f3f4;
    --google-text: #202124;
    --google-text-light: #5f6368;
    --google-text-muted: #80868b;
    --google-border: #dadce0;
    --google-blue: #1a73e8;
    --google-blue-dark: #1550be;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--google-gray);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--google-text);
}

.min-h-screen {
    min-height: 100vh;
}

/* Form styling */
.form-floating > .form-control {
    border-color: var(--google-border);
    border-radius: 0.25rem;
    font-size: 16px;
}

.form-floating > .form-control:focus {
    border-color: var(--google-blue);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

.form-floating > label {
    color: var(--google-text-muted);
}

.form-control:focus ~ label,
.form-floating > .form-control:focus + label {
    color: var(--google-blue);
}

/* Button styling */
.btn-link {
    color: var(--google-blue);
    font-size: 14px;
}

.btn-link:hover {
    color: var(--google-blue-dark);
}

.btn-primary {
    background-color: var(--google-blue);
    border-color: var(--google-blue);
    font-size: 14px;
    padding: 8px 24px;
}

.btn-primary:hover {
    background-color: var(--google-blue-dark);
    border-color: var(--google-blue-dark);
}

/* Card styling */
.bg-white {
    background-color: #ffffff !important;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

/* Text styling */
.text-muted {
    color: var(--google-text-light) !important;
}

h1 {
    color: var(--google-text);
    font-weight: 400;
}

/* Footer */
footer button:hover {
    color: var(--google-text) !important;
}

/* Select styling */
.form-select-sm {
    font-size: 0.875rem;
    color: var(--google-text-muted);
}

.form-select-sm:focus {
    border-color: var(--google-blue);
    box-shadow: 0 0 0 0.2rem rgba(26, 115, 232, 0.25);
}

/* Responsive - Mobile First */
@media (max-width: 576px) {
    /* Extra small devices */
    .bg-white {
        padding: 20px !important;
        gap: 0.5rem !important;
    }

    .w-25 {
        width: 100% !important;
        margin-bottom: 1rem;
    }

    .flex-grow-1 {
        width: 100% !important;
    }

    h1 {
        font-size: 1.5rem !important;
    }

    .mb-5 {
        margin-bottom: 1rem !important;
    }

    .mb-4 {
        margin-bottom: 0.75rem !important;
    }

    .pt-4 {
        padding-top: 1rem !important;
    }

    .d-flex {
        flex-direction: column !important;
    }

    .justify-content-between {
        justify-content: center !important;
        gap: 0.5rem;
    }

    .align-items-center {
        align-items: stretch !important;
    }

    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    footer {
        flex-direction: column !important;
        gap: 1rem !important;
    }

    footer .d-flex {
        justify-content: center !important;
    }

    img {
        max-width: 80px !important;
    }

    .form-floating {
        margin-bottom: 0.5rem;
    }

    .gap-5 {
        gap: 0 !important;
    }

    .p-5 {
        padding: 1.25rem !important;
    }

    .text-muted.small {
        font-size: 0.8rem !important;
    }
}

/* Tablet devices */
@media (min-width: 577px) and (max-width: 768px) {
    .bg-white {
        padding: 30px !important;
        gap: 1.5rem !important;
        flex-direction: column !important;
    }

    .w-25 {
        width: 100% !important;
        margin-bottom: 1.5rem;
    }

    .flex-grow-1 {
        width: 100% !important;
    }

    h1 {
        font-size: 2rem !important;
    }

    img {
        max-width: 100px !important;
    }

    footer {
        flex-direction: column !important;
        gap: 1.5rem !important;
    }

    footer .d-flex {
        justify-content: center !important;
        flex-direction: row !important;
    }
}

/* Laptop and larger */
@media (min-width: 769px) {
    .bg-white {
        padding: 40px !important;
    }

    .w-25 {
        width: 25% !important;
    }

    .flex-grow-1 {
        flex-grow: 1 !important;
    }

    h1 {
        font-size: 2rem !important;
    }

    img {
        max-width: 120px !important;
    }
}

/* Extra large screens */
@media (min-width: 1200px) {
    .bg-white {
        padding: 50px !important;
    }
}