/* Reset and Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg: #fafafa;
    --color-text: #1a1a1a;
    --color-text-secondary: #555;
    --color-text-muted: #777;
    --color-accent: #1a472a;
    --color-accent-hover: #143620;
    --color-border: #ddd;
    --color-border-light: #eee;
    --color-error: #c42b2b;
    --color-error-bg: #fdf2f2;
    --color-success: #1a472a;
    --color-success-bg: #f0f7f2;
    --color-box-bg: #fff;
    --shadow-soft: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-medium: 0 4px 12px rgba(0,0,0,0.08);
    --radius: 4px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: Georgia, "Times New Roman", serif;
    --max-width: 680px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    padding: 2rem 1rem;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.lang-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    background: var(--color-box-bg);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.lang-btn:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.lang-btn.active {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border-light);
}

header h1 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-style: italic;
}

/* Counter Section */
.counter-section {
    margin-bottom: 3rem;
    text-align: center;
}

.counter-box {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 2.5rem;
    background: var(--color-box-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.counter-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.counter-label {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

/* Main Content - Petition Text */
main {
    background: var(--color-box-bg);
    padding: 2.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    margin-bottom: 2.5rem;
}

main h1 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

main h2 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

main h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

main p {
    margin-bottom: 1rem;
    text-align: justify;
    hyphens: auto;
}

main p:last-child {
    margin-bottom: 0;
}

main hr {
    border: none;
    border-top: 1px solid var(--color-border-light);
    margin: 1.5rem 0;
}

main strong {
    font-weight: 600;
}

main em {
    font-style: italic;
}

main blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

main ul, main ol {
    margin: 1rem 0 1rem 1.5rem;
}

main li {
    margin-bottom: 0.5rem;
}

/* Signature Section */
.signature-section {
    background: var(--color-box-bg);
    padding: 2.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    margin-bottom: 2.5rem;
}

.signature-section h2 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-align: center;
}

.form-intro {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Form Styles */
form {
    max-width: 400px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}

input[type="text"] {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: var(--color-bg);
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--color-text);
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
}

input[type="text"].error {
    border-color: var(--color-error);
    background-color: var(--color-error-bg);
}

.input-hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* Honeypot - hidden field */
.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

.submit-btn:hover {
    background: var(--color-accent-hover);
}

.submit-btn:active {
    transform: translateY(1px);
}

.submit-btn:disabled {
    background: var(--color-text-muted);
    cursor: not-allowed;
}

/* Form Messages */
.form-message {
    padding: 1rem;
    border-radius: var(--radius);
    font-size: 0.9375rem;
    text-align: center;
    margin-top: 1rem;
    display: none;
}

.form-message.visible {
    display: block;
}

.form-message.error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border: 1px solid rgba(196, 43, 43, 0.2);
}

.form-message.success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid rgba(26, 71, 42, 0.2);
}

/* Success Section */
.success-section {
    margin-bottom: 2.5rem;
}

.success-section.hidden {
    display: none;
}

.success-box {
    background: var(--color-success-bg);
    border: 1px solid rgba(26, 71, 42, 0.2);
    padding: 2.5rem;
    border-radius: var(--radius);
    text-align: center;
}

.success-icon {
    width: 64px;
    height: 64px;
    color: var(--color-success);
    margin-bottom: 1.5rem;
}

.success-box h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-success);
}

.success-box p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.success-count {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

#success-count-number {
    color: var(--color-accent);
}

.share-panel {
    margin-top: 2rem;
    padding-top: 1.75rem;
    border-top: 1px solid rgba(26, 71, 42, 0.16);
}

.share-panel h3 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.share-panel p {
    margin-bottom: 1rem;
}

.share-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 8rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(26, 71, 42, 0.18);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.15s ease, border-color 0.2s ease, background 0.2s ease;
}

.share-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(26, 71, 42, 0.35);
    background: rgba(255, 255, 255, 0.96);
}

.share-btn-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

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

.share-message {
    padding: 0.875rem 1rem 0;
    border-radius: var(--radius);
    font-size: 0.9375rem;
    text-align: center;
    display: none;
}

.share-message.visible {
    display: block;
}

.share-message.success {
    color: var(--color-success);
}

.share-message.error {
    color: var(--color-error);
}

/* Footer */
footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border-light);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 640px) {
    body {
        padding: 1.5rem 1rem;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    main {
        padding: 1.5rem;
    }
    
    .signature-section {
        padding: 1.5rem;
    }
    
    .counter-box {
        padding: 1.25rem 2rem;
    }
    
    .counter-number {
        font-size: 2rem;
    }
    
    .success-box {
        padding: 1.5rem;
    }

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

    .share-btn {
        width: 100%;
    }
    
    main h2 {
        font-size: 1rem;
    }
}

/* Print Styles */
@media print {
    .lang-toggle,
    .signature-section,
    .success-section {
        display: none;
    }
    
    body {
        background: white;
        padding: 0;
    }
    
    main {
        border: none;
        box-shadow: none;
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible for Keyboard Navigation */
:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 2px;
}

/* Selection Color */
::selection {
    background: rgba(26, 71, 42, 0.2);
    color: var(--color-text);
}