/* ===== Design System Variables ===== */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700&display=swap');

:root {
    /* Colors - Softer palette */
    --color-primary: #1058AD;
    --color-primary-dark: #0d4a8f;
    --color-primary-light: #e8f0f8;
    --color-accent: #3498db;
    --color-success: #27ae60;
    --color-danger: #c0392b;
    --color-text: #2c3e50;
    --color-text-muted: #5d6d7e;
    --color-border: #bdc3c7;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Typography */
    --font-family: "Open Sans", sans-serif;
    --font-size-base: 1.0625rem;
    --font-size-sm: 0.9375rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.625rem;
    --font-size-2xl: 2.25rem;
    
    /* Borders - Softer style */
    --border-radius: 4px;
    --border-width: 1px;
    
    /* Box Shadow - Subtle effect */
    --box-shadow: 0 2px 8px rgba(44, 62, 80, 0.12);
    --box-shadow-sm: 0 1px 4px rgba(44, 62, 80, 0.1);
}

/* ===== Base Styles ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-bg-alt);
    padding: var(--spacing-lg);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--color-bg);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* ===== Header ===== */
header {
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: var(--spacing-xl);
    padding-right: calc(var(--spacing-xl) + 150px); /* Space for auth controls */
    border-bottom: var(--border-width) solid var(--color-border);
    position: relative;
}

header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    text-transform: none;
    letter-spacing: normal;
    color: var(--color-primary);
}

header .subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    line-height: 1.5;
    text-transform: none;
    letter-spacing: normal;
}

.header-content {
    display: block;
}

.header-home-link {
    color: var(--color-text);
    text-decoration: none;
    display: inline-block;
}

.header-home-link:hover {
    opacity: 0.8;
}

.header-logo {
    height: 96px;
    width: auto;
}

/* ===== Auth Controls ===== */
#fixed-auth-controls {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 10;
}

#user-info {
    position: relative;
}

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg);
    border: var(--border-width) solid var(--color-border);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--box-shadow-sm);
    position: relative;
    transition: none;
}

.user-menu-btn:hover {
    background-color: var(--color-bg-alt);
}

.user-menu-btn:active {
    box-shadow: none;
    top: 3px;
    left: 3px;
}

.user-menu-btn:focus {
    outline: 2px solid var(--color-text);
    outline-offset: 2px;
}

.user-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.chevron-icon {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
    transition: transform 0.2s;
}

.user-menu-btn[aria-expanded="true"] .chevron-icon {
    transform: rotate(180deg);
}

#user-name-text {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    right: 0;
    min-width: 160px;
    background: var(--color-bg);
    border: var(--border-width) solid var(--color-border);
    box-shadow: var(--box-shadow-sm);
    overflow: hidden;
}

.user-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--color-text);
    text-decoration: none;
    text-transform: none;
    letter-spacing: normal;
    cursor: pointer;
    transition: background-color 0.1s;
}

.user-menu-item:last-child {
    border-bottom: none;
}

.user-menu-item:hover {
    background-color: var(--color-bg-alt);
}

.menu-icon {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: none;
    letter-spacing: normal;
}

.breadcrumb a {
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 2px solid var(--color-text);
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ===== Main Content ===== */
main {
    padding: var(--spacing-xl);
}

/* ===== Form Sections ===== */
.form-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-sm);
}

.form-section h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: var(--border-width) solid var(--color-border);
    text-transform: none;
    letter-spacing: normal;
}

/* ===== Form Groups ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    text-transform: none;
    letter-spacing: normal;
    font-size: var(--font-size-base);
}

.required {
    color: var(--color-danger);
}

/* ===== Form Inputs ===== */
input[type="text"],
input[type="date"],
input[type="url"],
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: var(--border-width) solid var(--color-border);
    background-color: var(--color-bg);
    transition: box-shadow 0.1s;
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="url"]:focus,
select:focus {
    outline: none;
    box-shadow: inset 0 0 0 2px var(--color-text);
}

input:invalid:not(:placeholder-shown),
select:invalid:not(:placeholder-shown) {
    border-color: var(--color-danger);
}

input:invalid:focus:not(:placeholder-shown),
select:invalid:focus:not(:placeholder-shown) {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* ===== Help Text ===== */
.help-text {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    line-height: 1.5;
}

/* ===== Error Messages ===== */
.error-message {
    display: block;
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    min-height: 1.25rem;
}

.error-message:empty {
    display: none;
}

.form-group.has-error input,
.form-group.has-error select {
    border-color: var(--color-danger);
}

/* ===== Checkboxes ===== */
.checkbox-group {
    display: flex;
    align-items: flex-start;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
    margin-bottom: 0;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-group label span {
    line-height: 1.5;
}

/* ===== Buttons ===== */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: var(--border-width) solid var(--color-border);
}

.btn {
    padding: 0.5em 1.25em;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-family);
    text-transform: none;
    letter-spacing: normal;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    box-shadow: var(--box-shadow-sm);
    position: relative;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    transition: background-color 0.15s, box-shadow 0.15s;
}

.btn:hover {
    box-shadow: var(--box-shadow);
}

.btn:active {
    box-shadow: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

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

.btn-primary:disabled {
    background-color: #bdc3c7;
    border-color: #bdc3c7;
    color: #7f8c8d;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-secondary {
    background-color: var(--color-bg);
    color: var(--color-text);
}

.btn-secondary:hover {
    background-color: var(--color-bg-alt);
}

/* ===== Results Section ===== */
.results-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-sm);
}

.results-section h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    text-transform: none;
    letter-spacing: normal;
}

#results-content {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border: var(--border-width) solid var(--color-border);
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    max-height: 400px;
    overflow-y: auto;
}

.success-message {
    padding: var(--spacing-md);
    background-color: #eafaf1;
    border: var(--border-width) solid var(--color-success);
    border-left-width: 4px;
    border-radius: var(--border-radius);
    color: var(--color-success);
    text-transform: none;
    letter-spacing: normal;
    font-weight: 500;
}

.error-alert {
    padding: var(--spacing-md);
    background-color: #fdedec;
    border: var(--border-width) solid var(--color-danger);
    border-left-width: 4px;
    border-radius: var(--border-radius);
    color: var(--color-danger);
    text-transform: none;
    letter-spacing: normal;
    font-weight: 500;
}

/* ===== Footer ===== */
footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    color: var(--color-text-muted);
    border-top: var(--border-width) solid var(--color-border);
    background-color: var(--color-bg);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: var(--font-size-sm);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }

    header,
    main,
    footer {
        padding: var(--spacing-md);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* ===== Loading State ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: "...";
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0%, 20% { content: "."; }
    40% { content: ".."; }
    60%, 100% { content: "..."; }
}