/* ================================================
   MIFID II PROFESSIONAL CLIENT CERTIFICATION SYSTEM
   Dark Theme Professional Design
   ================================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2a2a2a;
    --bg-tertiary: #333333;
    --accent-orange: #ff9500;
    --accent-green: #00b061;
    --text-primary: #e8e8e8;
    --text-secondary: #b8b8b8;
    --border-light: #2a2a2a;
    --border-medium: #333333;
    --error-red: #ff3b30;
    --warning-yellow: #ffcc00;
    
    /* Typography */
    --font-mono: 'Helvetica Neue', Arial, sans-serif;
    --font-serif: 'Helvetica Neue', Arial, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: var(--font-serif);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.4;
    font-size: 18px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === CONTAINER === */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
}

/* === HEADER === */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.7rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--border-light);
}

.logo img {
    height: 50px;
    width: auto;
}

.back-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-orange);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.back-link:hover {
    opacity: 0.7;
}

/* === TYPOGRAPHY === */
.main-title {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.subtitle {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 300;
}

h2 {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.section-title {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--accent-orange);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-medium);
}

/* === LANDING PAGE === */
.landing-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-section {
    text-align: center;
    margin-bottom: 1.2rem;
}

.info-section,
.process-section,
.next-steps-section,
.disclaimer-section {
    margin-bottom: 1.5rem;
}

.info-section p,
.process-section p,
.next-steps-section p {
    font-size: 1.1rem;
    line-height: 1.5;
    color: var(--text-primary);
}

.criteria-list {
    list-style: none;
    margin: 1rem 0;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-orange);
}

.criteria-list li {
    padding: 0.3rem 0;
    font-size: 1.05rem;
    color: var(--text-primary);
    line-height: 1.4;
    padding-left: 1.5rem;
    text-indent: -1.5rem;
}

.criteria-list li:before {
    content: "• ";
    color: var(--accent-orange);
    font-weight: bold;
    padding-right: 0.7rem;
}

.disclaimer-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.disclaimer-box p {
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
}

.disclaimer-box strong {
    color: var(--accent-orange);
}

.cta-section {
    text-align: center;
    margin: 2rem 0;  /* era: var(--spacing-xl) 0 che è 3rem */
}

/* === BUTTONS === */
.btn-primary,
.btn-submit {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    letter-spacing: 0.05em;
}

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

.btn-primary:hover {
    background-color: #009051;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 176, 97, 0.3);
}

.btn-submit {
    background-color: var(--accent-green);
    color: #ffffff;
    width: 100%;
    max-width: 400px;
}

.btn-submit:hover:not(:disabled) {
    background-color: #009051;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 176, 97, 0.3);
}

.btn-submit:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.5;
}

/* === FORM SECTIONS === */
.form-content {
    max-width: 800px;
    margin: 0 auto;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-medium);
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

/* === FORM FIELDS === */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--accent-orange);
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.required {
    color: var(--error-red);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem;
    font-family: var(--font-serif);
    font-size: 1rem;
    background-color: #ffffff;
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-sm);
    color: #1a1a1a;
    transition: all 0.3s ease;
}

.form-group select {
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
    min-height: 180px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(255, 149, 0, 0.1);
}

.field-error {
    display: block;
    font-size: 0.85rem;
    color: var(--error-red);
    margin-top: var(--spacing-xs);
    font-family: var(--font-mono);
}

/* === CRITERIA COUNTER === */
.criteria-counter {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    padding: 0.7rem 1.5rem;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

#selected-count {
    font-weight: bold;
    color: var(--accent-orange);
    font-size: 1.3rem;
}

.criteria-counter.valid #selected-count {
    color: var(--accent-green);
}

/* === CHECKBOXES === */
.checkbox-group {
    margin-bottom: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    padding: 1rem;
    background-color: transparent;
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.checkbox-label:hover {
    border-color: var(--accent-orange);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border: 2px solid var(--text-secondary);
    border-radius: var(--radius-sm);
    margin-right: 1rem;
    margin-top: 2px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom:after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ffffff;
    font-size: 16px;
    font-weight: bold;
}

.checkbox-content {
    flex: 1;
}

.checkbox-content strong {
    display: block;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.checkbox-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin: 0;
}

.acknowledgment-checkbox .checkbox-label {
    border-color: var(--text-primary);
    background-color: transparent;
}

.acknowledgment-checkbox .checkbox-label:hover {
    border-color: var(--accent-orange);
}

/* === WARNING BOX === */
.warning-box {
    background-color: transparent;
    border: 2px solid var(--warning-yellow);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    margin-bottom: 1rem;
}

.warning-box h3 {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--warning-yellow);
    margin-bottom: 0.8rem;
    white-space: nowrap;
}

.warning-box p {
    color: var(--text-primary);
    margin-bottom: 0.8rem;
    line-height: 1.4;
    font-size: 0.95rem;
}

.warning-box ul {
    list-style: none;
    margin-left: 1rem;
}

.warning-box li {
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    padding-left: 1.2rem;
    position: relative;
    line-height: 1.4;
    font-size: 0.95rem;
}

.warning-box li:before {
    content: "•";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--warning-yellow);
    font-weight: bold;
}

/* === VALIDATION MESSAGE === */
.validation-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    display: none;
}

.validation-message.error {
    display: block;
    background-color: rgba(255, 59, 48, 0.1);
    border: 1px solid var(--error-red);
    color: var(--error-red);
}

.validation-message.success {
    display: block;
    background-color: rgba(0, 176, 97, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

/* === SUBMIT SECTION === */
.submit-section {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.submit-note {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* === MODALS === */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    text-align: center;
    border: 1px solid var(--border-medium);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.modal-content.success .modal-icon {
    color: var(--accent-green);
}

.modal-content.error .modal-icon {
    color: var(--error-red);
}

.modal-content h2 {
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-md);
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.modal-content .btn-primary {
    margin-top: var(--spacing-md);
}

/* === FOOTER === */
.page-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.page-footer p {
    margin: 0;
    display: inline;
}

.page-footer p:after {
    content: " - ";
    margin: 0 0.5rem;
}

.page-footer p:last-child:after {
    content: "";
}

/* === DESKTOP ONLY MODIFICATIONS === */
@media (min-width: 769px) {
    .main-title {
        font-size: 2rem;
    }
    
    .info-section p,
    .process-section p,
    .next-steps-section p {
        line-height: 1.35;
    }
    
    .cta-section {
        margin: 1.5rem 0;
    }
    
    .subtitle {
        margin-top: 0.1rem;
    }
    
    h2 {
        margin-bottom: 0.5rem;
    }
    
    .submit-section {
        margin-top: 1.5rem;
        padding: 1rem;
    }
    
    .submit-note {
        margin-top: 0.8rem;
    }
    
    .form-header {
        margin-bottom: 1rem;
    }
}

/* === TABLET RESPONSIVE === */
@media (min-width: 768px) and (max-width: 1279px) {
    body {
        font-size: 16px;
        font-family: 'Helvetica Neue', Arial, sans-serif;
    }
    
    .main-title {
        font-size: 1.9rem;
    }
    
    h2 {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 1.15rem;
    }
    
    .info-section p,
    .process-section p,
    .next-steps-section p {
        font-size: 1rem;
    }
    
    .btn-primary,
    .btn-submit {
        font-size: 0.95rem;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .form-group textarea {
        min-height: 180px;
        font-size: 1rem;
    }
    
    .checkbox-content strong {
        font-size: 0.95rem;
    }
    
    .checkbox-content p {
        font-size: 0.95rem;
    }
}

/* === MOBILE RESPONSIVE === */
@media (max-width: 767px) {
    body {
        font-size: 16px;
    }
    
    .container {
        padding: 1rem;
    }
    
    .page-header {
        padding-bottom: 0.8rem;
        margin-bottom: 1rem;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 0.9rem;
    }
    
    h2 {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .info-section p,
    .process-section p,
    .next-steps-section p {
        font-size: 0.95rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }
    
    .logo img {
        height: 40px;
    }
    
    .form-section {
        padding: 1rem;
    }
    
    .checkbox-label {
        padding: 0.8rem;
    }
    
    .checkbox-content strong {
        font-size: 0.95rem;
    }
    
    .checkbox-content p {
        font-size: 0.9rem;
    }
    
    .warning-box {
        padding: 1rem;
    }
    
    .warning-box h3 {
        font-size: 0.9rem;
    }
    
    .modal-content {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 1.6rem;
    }
    
    .btn-primary,
    .btn-submit {
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .criteria-counter {
        font-size: 0.95rem;
        padding: 0.6rem 1.2rem;
    }
    
    #selected-count {
        font-size: 1.1rem;
    }
}