:root {
    --google-blue: #1a73e8;
    --google-blue-hover: #1557b0;
    --google-gray: #5f6368;
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --text-color: #202124;
    --text-muted: #5f6368;
    --input-border: #dadce0;
    --input-focus: #1a73e8;
    --error-color: #d93025;
    --border-radius: 8px;
}

/* Dark mode compatibility */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #131314;
        --card-bg: #1e1e1f;
        --text-color: #e3e3e3;
        --text-muted: #c4c7c5;
        --input-border: #8e918f;
        --input-focus: #a8c7fa;
        --google-blue: #a8c7fa;
        --google-blue-hover: #c2e7ff;
    }
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Roboto', sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 24px;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    text-align: center;
}

.logo-section {
    margin-bottom: 30px;
}

.logo-title {
    font-family: 'Product Sans', sans-serif;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* Blob logo icon */
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-blue { color: #4285F4; }
.logo-red { color: #EA4335; }
.logo-yellow { color: #FBBC05; }
.logo-green { color: #34A853; }

h2 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 10px;
    letter-spacing: -0.2px;
}

.subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.alert {
    background-color: rgba(217, 48, 37, 0.08);
    border: 1px solid rgba(217, 48, 37, 0.2);
    color: var(--error-color);
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 14px;
    margin-bottom: 24px;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    fill: currentColor;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
    position: relative;
}

.form-input {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    background: transparent;
    color: var(--text-color);
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: var(--input-focus);
    border-width: 2px;
    padding: 15px;
}

/* Float label effect */
.form-label {
    position: absolute;
    left: 16px;
    top: 18px;
    color: var(--text-muted);
    pointer-events: none;
    transition: 0.2s ease all;
    font-size: 16px;
    background-color: var(--card-bg);
    padding: 0 4px;
}

/* Label floating when input is focused or not empty */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -8px;
    left: 10px;
    font-size: 12px;
    color: var(--input-focus);
}

.actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
}

.create-account-link {
    color: var(--google-blue);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
}

.create-account-link:hover {
    color: var(--google-blue-hover);
}

.submit-btn {
    background-color: var(--google-blue);
    color: var(--bg-color);
    border: none;
    border-radius: 4px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.submit-btn:hover {
    background-color: var(--google-blue-hover);
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
}

.footer-links {
    margin-top: 40px;
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 16px;
}

.footer-links a:hover {
    color: var(--text-color);
}

/* Captcha styles */
.captcha-wrapper {
    display: flex;
    gap: 12px;
    align-items: stretch;
    margin-bottom: 20px;
}

.captcha-img-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.02);
}

.captcha-input-group {
    flex: 1;
    margin-bottom: 0 !important;
}

@media (max-width: 480px) {
    .captcha-wrapper {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .captcha-img-container {
        height: 56px;
        justify-content: center;
        gap: 20px;
    }
}

/* PWA Install Banner styling */
.pwa-banner {
    display: none;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(26, 115, 232, 0.08);
    border: 1px solid rgba(26, 115, 232, 0.2);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    margin-bottom: 24px;
    text-align: left;
}

@media (prefers-color-scheme: dark) {
    .pwa-banner {
        background-color: rgba(168, 199, 250, 0.08);
        border-color: rgba(168, 199, 250, 0.2);
    }
}

.pwa-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pwa-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.pwa-text {
    display: flex;
    flex-direction: column;
    font-size: 13px;
}

.pwa-text strong {
    color: var(--text-color);
    font-weight: 500;
}

.pwa-text span {
    color: var(--text-muted);
    font-size: 11px;
}

.pwa-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pwa-btn {
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.pwa-btn.pwa-install {
    background-color: var(--google-blue);
    color: var(--bg-color);
    padding: 6px 12px;
}

.pwa-btn.pwa-install:hover {
    background-color: var(--google-blue-hover);
}

.pwa-btn.pwa-close {
    background: transparent;
    color: var(--text-muted);
    font-size: 20px;
    padding: 0 4px;
    line-height: 1;
}

.pwa-btn.pwa-close:hover {
    color: var(--text-color);
}