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

body {
    font-family: 'Lora', serif;
    overflow-x: hidden;
    background-color: #ffffff;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

/* ============ HEADER ============ */
header {
    position: absolute;
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 40px;
    z-index: 1000;
}

.header-container {
    width: 85vw;
    max-width: 1400px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    border-radius: 120px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header-logo {
    font-weight: 600;
    font-size: 24px;
    color: #000;
    z-index: 1001;
}

.header-menu {
    display: flex;
    gap: 40px;
    position: relative;
    z-index: 5;
}

.header-menu__item {
    font-family: 'Lora', serif;
    font-weight: 500;
    font-size: 18px;
    text-decoration: none;
    color: #000 !important;
    transition: opacity 0.3s ease;
}

.header-menu__item:hover {
    opacity: 0.6;
}

.header-balance {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-balance p {
    font-size: 18px;
}

.header-balance__text {
    font-weight: 400;
}

.header-balance__cost {
    font-weight: 500;
    color: rgba(234, 75, 63, 1);
}

.header-receive__button {
    background-color: rgba(234, 75, 63, 1);
    border: none;
    color: white;
    padding: 14px 24px;
    border-radius: 120px;
    font-family: 'Lora', serif;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 160px;
    text-align: center;
}

.header-receive__button:hover {
    background-color: rgba(200, 60, 50, 1);
    transform: translateY(-2px);
}

/* Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
    display: none;
    cursor: pointer;
}

.overlay.active {
    display: block;
}

/* ============ POPUP ============ */
.popup-container {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    padding: 20px;
    overflow-y: auto;
}

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

.popup-page {
    background: rgb(255, 255, 255);
    width: 100%;
    max-width: 500px;
    border-radius: 30px;
    padding: 40px 30px;
    display: none;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    margin: auto;
}

.popup-page.active {
    display: flex !important;
}

/* Кнопка закрытия попапа */
.popup-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #666;
    transition: all 0.3s ease;
    z-index: 100;
}

.popup-close-btn:hover {
    background: #e0e0e0;
    color: #333;
    transform: rotate(90deg);
}

.popup-first__title {
    font-family: 'Lora', serif;
    font-weight: 600;
    font-size: 28px;
    margin-bottom: 15px;
    color: #333;
    text-align: center;
    line-height: 1.3;
    width: 100%;
}

.popup-first__subtitle {
    font-family: 'Lora', serif;
    font-weight: 400;
    font-size: 16px;
    color: #666;
    line-height: 1.5;
    text-align: center;
    margin-bottom: 30px;
    width: 100%;
}

.popup-first__button {
    background-color: rgba(234, 75, 63, 1);
    border: none;
    color: white;
    padding: 18px 30px;
    border-radius: 120px;
    font-family: 'Lora', serif;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    max-width: 300px;
    margin-top: 20px;
    text-align: center;
    display: block;
}

.popup-first__button:hover {
    background-color: rgba(200, 60, 50, 1);
    transform: translateY(-2px);
}

.popup-first__button:active {
    transform: translateY(0);
}

.popup-first__button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
}

.popup-first__button:disabled:hover {
    background-color: #cccccc;
    transform: none;
}

.popup-first__button.secondary {
    background-color: #6c757d;
    border: 1px solid #6c757d;
}

.popup-first__button.secondary:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

/* ============ VERIFICATION STEPS ============ */
.verification-steps {
    display: flex;
    justify-content: space-between;
    margin: 30px 0;
    width: 100%;
    max-width: 500px;
}

.verification-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
}

.verification-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 20px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: #e0e0e0;
    z-index: 1;
}

.step-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #4285f4;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    z-index: 2;
    position: relative;
}

.step-text {
    font-size: 12px;
    color: #666;
    text-align: center;
    font-weight: 500;
}

/* ============ PROVIDER SELECTOR ============ */
.provider-selector {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.provider-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.provider-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.provider-btn:hover {
    border-color: #4285f4;
    box-shadow: 0 4px 12px rgba(66, 133, 244, 0.1);
    transform: translateY(-2px);
}

.provider-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    flex-shrink: 0;
}

.provider-icon svg {
    width: 24px;
    height: 24px;
}

.provider-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.provider-name {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
}

.provider-desc {
    font-size: 14px;
    color: #666;
}

.provider-btn i {
    color: #999;
    font-size: 14px;
}

/* Specific provider button styles */
.google-provider .provider-icon {
    background: #fff;
    border: 1px solid #dadce0;
}

.yahoo-provider .provider-icon {
    background: #6001D2;
}

.yahoo-provider .provider-icon i {
    color: white;
    font-size: 20px;
}

.outlook-provider .provider-icon {
    background: #0072C6;
}

.outlook-provider .provider-icon i {
    color: white;
    font-size: 20px;
}

/* ============ AUTH PAGES ============ */
.auth-header {
    text-align: center;
    margin-bottom: 30px;
    width: 100%;
}

.auth-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 500;
}

.google-logo {
    background: #fff;
    border: 8px solid #4285f4;
    color: #4285f4;
    font-family: 'Google Sans', Arial, sans-serif;
}

.yahoo-logo {
    background: #6001D2;
    color: white;
    font-family: 'Google Sans', Arial, sans-serif;
}

.outlook-logo {
    background: #0072C6;
    color: white;
}

.outlook-logo svg {
    width: 40px;
    height: 40px;
}

.logo-letter {
    font-family: 'Google Sans', Arial, sans-serif;
    font-weight: 500;
}

.auth-title {
    font-size: 24px;
    color: #202124;
    margin-bottom: 8px;
    font-weight: 400;
    font-family: 'Google Sans', Arial, sans-serif;
}

.auth-subtitle {
    font-size: 16px;
    color: #5f6368;
    margin-bottom: 30px;
    font-family: 'Google Sans', Arial, sans-serif;
}

/* Auth forms */
.auth-form {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.auth-form .form-group {
    margin-bottom: 20px;
    width: 100%;
}

.auth-form .input-wrapper {
    margin-bottom: 0;
    width: 100%;
}

.auth-form .input-wrapper input {
    width: 100%;
    padding: 16px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    font-size: 16px;
    background: white;
    color: #202124;
    font-family: 'Google Sans', Arial, sans-serif;
    transition: all 0.3s ease;
}

.auth-form .input-wrapper input:focus {
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.2);
    outline: none;
}

.auth-links {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.auth-link {
    color: #1a73e8;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    font-family: 'Google Sans', Arial, sans-serif;
}

.auth-link:hover {
    text-decoration: underline;
}

.auth-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

.auth-button {
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-family: 'Google Sans', Arial, sans-serif;
    min-width: 100px;
    transition: all 0.3s ease;
}

.auth-button.secondary {
    background: white;
    color: #5f6368;
    border: 1px solid #dadce0;
}

.auth-button.secondary:hover {
    background: #f8f9fa;
}

.auth-button.primary {
    background: #1a73e8;
    color: white;
}

.auth-button.google-primary {
    background: #1a73e8;
}

.auth-button.yahoo-primary {
    background: #6001D2;
}

.auth-button.outlook-primary {
    background: #0072C6;
}

.auth-button.primary:hover {
    opacity: 0.9;
}

.auth-footer {
    margin-top: 40px;
    text-align: center;
    color: #5f6368;
    font-size: 14px;
    border-top: 1px solid #dadce0;
    padding-top: 20px;
    font-family: 'Google Sans', Arial, sans-serif;
}

/* Checkbox group */
.checkbox-group {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-group label {
    font-size: 14px;
    color: #202124;
    cursor: pointer;
    font-family: 'Google Sans', Arial, sans-serif;
}

/* ============ VERIFICATION CODE ============ */
.code-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.code-info {
    color: #5f6368;
    font-size: 14px;
    text-align: center;
    margin-bottom: 30px;
    line-height: 1.5;
    font-family: 'Google Sans', Arial, sans-serif;
}

.code-inputs {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    gap: 10px;
}

.code-input {
    width: 100%;
    height: 60px;
    border: 2px solid #dadce0;
    border-radius: 8px;
    text-align: center;
    font-size: 24px;
    font-weight: 500;
    color: #202124;
    font-family: 'Google Sans', Arial, sans-serif;
    transition: all 0.3s ease;
    background: white;
}

.code-input:focus {
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.2);
    outline: none;
}

.code-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 30px;
    color: #5f6368;
    font-size: 14px;
    font-family: 'Google Sans', Arial, sans-serif;
}

.code-timer i {
    color: #ea4335;
}

.code-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 40px;
    text-align: center;
}

.code-link {
    color: #1a73e8;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    font-family: 'Google Sans', Arial, sans-serif;
}

.code-link:hover {
    text-decoration: underline;
}

/* ============ FORM STYLES ============ */
.personal-form-wrapper,
.card-form-wrapper {
    margin: 20px 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.form-group {
    margin-bottom: 20px;
    width: 100%;
    max-width: 400px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
    font-weight: 500;
    font-family: 'Lora', serif;
    text-align: left;
}

.input-wrapper {
    position: relative;
    width: 100%;
    margin-bottom: 15px;
}

.input-wrapper input {
    width: 100%;
    padding: 16px 16px 16px 50px;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-size: 16px;
    background: #f8f9fa;
    font-family: 'Lora', serif;
    transition: all 0.3s ease;
    color: #333;
    height: 52px;
}

.input-wrapper input:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
    background: #fff;
}

.input-wrapper i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 16px;
    z-index: 2;
}

.show-password {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    z-index: 2;
    height: 20px;
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.show-password:hover {
    color: #4285f4;
}

/* File Upload Styles */
.file-upload-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 20px 0;
    width: 100%;
    max-width: 400px;
    align-items: center;
}

.upload-column {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.file-input {
    display: none;
}

.popup-photo__place {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border: 2px dashed #B0B0B0;
    border-radius: 16px;
    width: 100%;
    height: 180px;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 20px;
    box-sizing: border-box;
    text-align: center;
}

.popup-photo__place:hover {
    border-color: #4285f4;
    background-color: #fff;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    margin-top: 12px;
    color: #333;
}

.upload-hint {
    font-size: 14px;
    color: #666;
    margin-top: 8px;
}

.upload-icon {
    font-size: 40px;
    color: #999;
    margin-bottom: 10px;
}

.upload-filename {
    font-size: 14px;
    color: #4285f4;
    margin-top: 8px;
    text-align: center;
    word-break: break-all;
    width: 100%;
}

.field-note {
    font-size: 14px;
    color: #666;
    margin-top: 10px;
    text-align: center;
    width: 100%;
}

/* Form Rows */
.form-row {
    display: flex;
    gap: 15px;
    width: 100%;
    max-width: 400px;
}

.form-row .form-group {
    flex: 1;
    min-width: 0;
}

/* Success Page */
.success-icon {
    font-size: 80px;
    color: #34a853;
    margin-bottom: 25px;
    text-align: center;
}

.success-icon i {
    font-size: inherit;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 10000;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #4285f4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: #333;
    font-size: 18px;
    font-weight: 500;
    font-family: 'Lora', serif;
}

/* Toast Messages */
.error-toast,
.success-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10001;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    animation: slideIn 0.3s ease;
    font-family: 'Lora', serif;
    max-width: 400px;
    word-break: break-word;
}

.error-toast {
    background: #ea4335;
    color: white;
}

.success-toast {
    background: #34a853;
    color: white;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* ============ VERIFICATION PENDING STYLES ============ */
.verification-pending {
    text-align: center;
    padding: 40px 20px;
    background: #f8f9fa;
    border-radius: 15px;
    margin: 30px 0;
    width: 100%;
    max-width: 400px;
}

.verification-pending .spinner {
    width: 60px;
    height: 60px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #4285f4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 25px;
}

.verification-pending h3 {
    color: #202124;
    font-size: 22px;
    margin-bottom: 12px;
    font-family: 'Google Sans', Arial, sans-serif;
    font-weight: 500;
}

.verification-pending p {
    color: #5f6368;
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 8px;
    font-family: 'Google Sans', Arial, sans-serif;
}

.verification-pending .hint {
    color: #9aa0a6;
    font-size: 14px;
    font-style: italic;
    margin-top: 15px;
}

/* ============ MAIN CONTENT ============ */
.intro {
    position: relative;
    overflow: hidden;
    padding-bottom: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.intro::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -15px;
    width: 100%;
    height: 200px;
    background: linear-gradient(
        to top,
        white 0%,
        rgba(255, 255, 255, 1.8) 30%,
        rgba(255, 255, 255, 0) 100%
    );
    filter: blur(8px);
    z-index: 4;
    pointer-events: none;
}

.intro-container {
    position: relative;
    width: 85vw;
    max-width: 1400px;
    margin-top: 150px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.intro-left {
    flex: 1;
    max-width: 700px;
    display: flex;
    flex-direction: column;
}

.intro-left__top {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.intro-left__title {
    font-weight: 600;
    font-size: 64px;
    color: #000;
    line-height: 1.2;
    position: relative;
}

.intro-left__title img {
    display: inline-block;
    vertical-align: middle;
    margin: 0 10px;
    height: 40px;
    width: auto;
}

.intro-left__text {
    font-weight: 400;
    font-size: 18px;
    color: #666;
    line-height: 1.6;
    max-width: 600px;
}

.intro-left__button {
    font-family: 'Lora', serif;
    font-weight: 500;
    font-size: 18px;
    text-decoration: none;
    color: white !important;
    background: #000;
    padding: 18px 40px;
    border-radius: 120px;
    max-width: 200px;
    text-align: center;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.intro-left__button:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.intro-right {
    flex: 1;
    max-width: 600px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.intro__picture {
    width: 100%;
    max-width: 600px;
    height: auto;
}

/* ============ SURVEY SECTION ============ */
.survey {
    position: relative;
    margin-top: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 40px 20px;
}

.survey-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 800px;
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.survey-card {
    background: rgba(234, 75, 63, 1);
    border-radius: 30px;
    padding: 40px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    position: absolute;
    top: 0;
    width: 100%;
    max-width: 700px;
    height: 760px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transition: transform 0.5s ease, opacity 0.3s ease;
    overflow: hidden;
}

.survey-card.active {
    display: flex;
    transform: rotate(0deg) !important;
    z-index: 10;
    opacity: 1;
}

.survey-card.buffer-card {
    display: flex;
    opacity: 0.9;
}

.survey-card.finish-card {
    background: rgba(234, 75, 63, 1);
    justify-content: space-between;
}

.survey-card__backline {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 2;
    opacity: 0.1;
}

.survey-card__navigation {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 40px;
    z-index: 3;
}

.survey-nav {
    display: block;
    width: calc(20% - 8px);
    height: 16px;
    border-radius: 120px;
    background: rgba(255, 255, 255, 0.3);
    transition: background-color 0.3s ease;
}

.survey-nav.active {
    background: white;
}

.survey-content {
    text-align: center;
    z-index: 3;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.survey-content__question {
    font-size: 48px;
    font-weight: 600;
    color: white;
    line-height: 1.2;
    margin-bottom: 30px;
    max-width: 600px;
}

.survey-content__num-question {
    color: white;
    font-size: 18px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.survey-content__finish-text {
    font-size: 20px;
    color: white;
    max-width: 600px;
    margin-top: 20px;
    line-height: 1.6;
}

.survey-answers {
    display: flex;
    gap: 30px;
    z-index: 3;
    justify-content: center;
    align-items: center;
}

.survey-answers button {
    background: white;
    border: none;
    border-radius: 120px;
    padding: 20px;
    font-family: 'Lora', serif;
    font-weight: 500;
    font-size: 24px;
    color: #333;
    cursor: pointer;
    outline: none;
    width: 180px;
    height: 180px;
    transition: transform 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.survey-answers button:hover {
    transform: scale(1.05);
}

.survey-answers button:active {
    transform: scale(0.98);
}

.survey-answers button img {
    max-width: 80px;
    max-height: 80px;
    margin-bottom: 15px;
}

.multiple-answers {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
    width: 100%;
    max-width: 500px;
}

.multiple-answer-btn {
    padding: 20px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.1);
    font-size: 20px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    backdrop-filter: blur(10px);
}

.multiple-answer-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
}

.multiple-answer-btn.selected {
    background: white;
    color: rgba(234, 75, 63, 1);
    border-color: white;
}

/* ============ ABOUT SECTION ============ */
.about {
    padding: 80px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #f8f9fa;
}

.about-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 85vw;
    max-width: 1400px;
    gap: 60px;
}

.about-right {
    flex: 1;
    max-width: 700px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.about-right__title {
    font-size: 56px;
    font-weight: 600;
    color: #000;
    line-height: 1.2;
}

.about-right__subtitle {
    font-size: 18px;
    font-weight: 400;
    color: #666;
    line-height: 1.6;
}

.about-right__button {
    background: #000;
    padding: 20px 40px;
    border-radius: 120px;
    text-decoration: none;
    color: white !important;
    text-align: center;
    font-size: 18px;
    font-weight: 500;
    max-width: 350px;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.about-right__button:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.about-left {
    flex: 1;
    max-width: 600px;
    display: flex;
    justify-content: center;
}

.about-left__picture {
    width: 100%;
    max-width: 600px;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* ============ BURGER MENU ============ */
.burger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.burger-line {
    display: block;
    width: 100%;
    height: 3px;
    background: #000;
    transition: all 0.3s ease;
}

.burger-btn.active .burger-line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
    background: white;
}

.burger-btn.active .burger-line:nth-child(2) {
    opacity: 0;
}

.burger-btn.active .burger-line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
    background: white;
}

.header-balance-menu {
    display: none;
}

/* ============ MOBILE RESPONSIVE ============ */
@media (max-width: 1200px) {
    .intro-container,
    .about-container {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    
    .intro-left {
        align-items: center;
        text-align: center;
    }
    
    .intro-left__title {
        font-size: 48px;
    }
    
    .about-right__title {
        font-size: 48px;
    }
    
    .intro__picture,
    .about-left__picture {
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .header-container {
        width: 95vw;
        padding: 15px 20px;
    }
    
    .header-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(234, 75, 63, 1);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transition: right 0.3s ease;
        z-index: 999;
    }
    
    .header-menu.active {
        right: 0;
    }
    
    .header-menu__item {
        font-size: 24px;
        color: white !important;
    }
    
    .burger-btn {
        display: flex;
    }
    
    .header-balance {
        display: none;
    }
    
    .header-balance-menu {
        display: block;
        color: white;
        text-align: center;
    }
    
    .popup-page {
        padding: 30px 20px;
        border-radius: 20px;
        margin: 10px;
        max-width: 95%;
    }
    
    .popup-first__title {
        font-size: 24px;
    }
    
    .popup-first__subtitle {
        font-size: 14px;
    }
    
    .popup-first__button {
        padding: 16px 24px;
        font-size: 16px;
    }
    
    .intro-left__title {
        font-size: 36px;
    }
    
    .intro-left__text {
        font-size: 16px;
    }
    
    .intro-left__button {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    .survey-card {
        padding: 30px 20px;
        height: 600px;
        max-width: 95%;
    }
    
    .survey-content__question {
        font-size: 32px;
    }
    
    .survey-answers button {
        width: 140px;
        height: 140px;
        font-size: 20px;
    }
    
    .survey-answers button img {
        max-width: 60px;
        max-height: 60px;
    }
    
    .multiple-answers {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .multiple-answer-btn {
        padding: 16px;
        font-size: 18px;
    }
    
    .about-right__title {
        font-size: 36px;
    }
    
    .about-right__subtitle {
        font-size: 16px;
    }
    
    .about-right__button {
        padding: 18px 32px;
        font-size: 16px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .popup-photo__place {
        height: 150px;
        padding: 15px;
    }
    
    .upload-text {
        font-size: 14px;
    }
    
    .upload-icon {
        font-size: 32px;
    }
    
    .popup-close-btn {
        top: 10px;
        right: 10px;
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    .verification-steps {
        max-width: 100%;
    }
    
    .verification-step:not(:last-child)::after {
        right: -40%;
    }
    
    .step-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    .step-text {
        font-size: 11px;
    }
    
    .provider-btn {
        padding: 14px 16px;
    }
    
    .provider-icon {
        width: 32px;
        height: 32px;
        margin-right: 12px;
    }
    
    .provider-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .provider-name {
        font-size: 14px;
    }
    
    .provider-desc {
        font-size: 12px;
    }
    
    .auth-logo {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .auth-title {
        font-size: 20px;
    }
    
    .auth-subtitle {
        font-size: 14px;
    }
    
    .auth-form .input-wrapper input {
        padding: 14px;
        font-size: 14px;
    }
    
    .auth-button {
        padding: 10px 20px;
        font-size: 13px;
        min-width: 80px;
    }
    
    .code-input {
        height: 50px;
        font-size: 20px;
    }
    
    .verification-pending {
        padding: 30px 15px;
        margin: 20px 0;
    }
    
    .verification-pending .spinner {
        width: 50px;
        height: 50px;
        margin-bottom: 20px;
    }
    
    .verification-pending h3 {
        font-size: 18px;
    }
    
    .verification-pending p {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 12px 15px;
    }
    
    .header-logo {
        font-size: 20px;
    }
    
    .popup-page {
        padding: 25px 15px;
        border-radius: 15px;
    }
    
    .popup-first__title {
        font-size: 22px;
    }
    
    .popup-first__subtitle {
        font-size: 13px;
        margin-bottom: 20px;
    }
    
    .popup-first__button {
        padding: 14px 20px;
        font-size: 15px;
    }
    
    .intro-left__title {
        font-size: 28px;
    }
    
    .intro-left__text {
        font-size: 15px;
    }
    
    .survey-card {
        height: 500px;
        padding: 25px 15px;
    }
    
    .survey-content__question {
        font-size: 26px;
    }
    
    .survey-answers {
        gap: 15px;
    }
    
    .survey-answers button {
        width: 120px;
        height: 120px;
        font-size: 18px;
    }
    
    .survey-answers button img {
        max-width: 50px;
        max-height: 50px;
    }
    
    .survey-card__navigation {
        margin-bottom: 30px;
    }
    
    .survey-nav {
        height: 12px;
    }
    
    .about-right__title {
        font-size: 28px;
    }
    
    .about-right__subtitle {
        font-size: 15px;
    }
    
    .input-wrapper input {
        padding: 14px 14px 14px 45px;
        font-size: 15px;
        height: 48px;
    }
    
    .popup-photo__place {
        height: 130px;
        padding: 12px;
    }
    
    .upload-text {
        font-size: 13px;
    }
    
    .upload-icon {
        font-size: 28px;
    }
    
    .error-toast,
    .success-toast {
        padding: 12px 20px;
        font-size: 14px;
        max-width: 90%;
        right: 5%;
        left: 5%;
    }
    
    .verification-step:not(:last-child)::after {
        right: -30%;
    }
    
    .step-text {
        font-size: 10px;
    }
    
    .auth-logo {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .auth-title {
        font-size: 18px;
    }
    
    .auth-subtitle {
        font-size: 13px;
    }
    
    .code-input {
        height: 45px;
        font-size: 18px;
    }
    
    .verification-pending {
        padding: 25px 12px;
    }
    
    .verification-pending .spinner {
        width: 40px;
        height: 40px;
        margin-bottom: 15px;
    }
    
    .verification-pending h3 {
        font-size: 16px;
    }
    
    .verification-pending p {
        font-size: 13px;
    }
}