/* ====== VARIABLES ====== */
:root {
    --color-primary: #57486d;
    --color-accent: rgb(255, 200, 154);
    --color-bg: #fafbff;
    --color-text: #251e2e;
    --color-error: #e85050;
    --color-error-bg: #fff5f5;
    --color-error-border: #ffd3da;
    --color-header-bg: #fff;
    --color-footer-bg: #57486d;
    --color-footer-bottom: rgb(255, 200, 154);
}

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

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 88px;
}

/* ====== HEADER ====== */
.main-header {
    width: 100%;
    background: var(--color-header-bg);
    box-shadow: 0 2px 8px rgba(87, 72, 109, 0.09);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 clamp(15px, 5vw, 42px);
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 1001;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.main-logo {
    height: 36px;
    width: auto;
    display: block;
}

/* ====== CONTAINER (CARD) ====== */
.container {
    margin: 26px auto 30px;
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 10px 36px 0 rgba(87, 72, 109, 0.07);
    padding: 44px 48px 40px;
    max-width: 680px;
    width: calc(100% - 40px);
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

h1,
h2 {
    color: var(--color-primary);
    text-align: center;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 26px;
    margin-top: 0;
    letter-spacing: 0.01em;
}

h2 {
    font-size: 1.18rem;
    margin-bottom: 14px;
}

/* ====== FORM SECTIONS ====== */
.form-section,
#service-data-info {
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 1.5px 8px rgba(87, 72, 109, 0.05);
    border: none;
    padding: 12px 0 8px 0;
    margin-bottom: 17px;
}

.form-group {
    margin-bottom: 21px;
}

/* ====== INPUTS ====== */
input[type="text"],
input[type="number"],
select {
    border: 1.5px solid #e3e5e9;
    background: #fcfcfc;
    border-radius: 7px;
    font-size: 1.11rem;
    padding: 13px 16px;
    margin-bottom: 4px;
    outline: none;
    width: 100%;
    color: var(--color-text);
    transition: border 0.14s;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    border-color: var(--color-primary);
    background: #f3f1fd;
}

label {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 7px;
    display: block;
}

small {
    color: #787878;
    font-size: 0.86em;
    margin-top: 3px;
    display: block;
}

/* ====== BUTTONS ====== */
button,
#pay-btn,
#get-receipt-again-btn,
.back-btn {
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    border-radius: 25px;
    border: none;
    padding: 17px 0;
    font-size: 1.11rem;
    margin-top: 15px;
    width: 100%;
    letter-spacing: 0.03em;
    box-shadow: 0 2px 12px rgba(87, 72, 109, 0.06);
    transition: background 0.18s;
    text-transform: uppercase;
    cursor: pointer;
}

button:hover:not(:disabled),
#pay-btn:hover:not(:disabled),
#get-receipt-again-btn:hover:not(:disabled),
.back-btn:hover {
    background: #6a5a85;
}

button:disabled,
#pay-btn:disabled {
    background: #eee5f9;
    color: #b6b1c6;
    cursor: not-allowed;
}

/* ====== LINKS ====== */
a,
.small-link,
.form-link {
    color: var(--color-primary);
    text-decoration: underline;
    font-size: 0.96em;
}

a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* ====== ERROR ====== */
.error-message {
    color: var(--color-error);
    background: var(--color-error-bg);
    border: 1.5px solid var(--color-error-border);
    font-size: 1.03em;
    text-align: center;
    margin-top: 12px;
    padding: 12px;
    border-radius: 8px;
}

/* ====== FOOTER ====== */
.site-footer {
    background: var(--color-footer-bg);
    color: #fff;
    padding: 35px 20px 25px;
    width: 100%;
    margin: 0;
    flex-shrink: 0;
}

.footer-inner {
    max-width: 1150px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 24px;
    font-size: 1.08em;
}

.footer-block {
    min-width: 230px;
    flex: 1;
}

.footer-block h4 {
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.06em;
    margin: 0 0 12px 0;
    letter-spacing: 0.01em;
}

.footer-block strong {
    color: var(--color-accent);
    font-weight: 600;
}

.footer-block a {
    color: #fff;
    text-decoration: none;
    font-size: 1em;
}

.footer-block a:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.footer-contacts {
    color: #fff;
    margin-top: 12px;
    font-size: 1.01em;
    line-height: 1.5;
}

.footer-bottom {
    margin-top: 28px;
    text-align: center;
    color: var(--color-footer-bottom);
    font-size: 0.97em;
}

/* ====== VERSION ====== */
.version-info {
    font-size: 0.83em;
    color: #b3b3b3;
    background: none;
    position: fixed;
    bottom: 10px;
    right: 12px;
    z-index: 1050;
}

/* ====== MODALS ====== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    position: relative;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-content h2 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.modal-info-section {
    margin-bottom: 20px;
    padding: 10px;
    border-radius: 5px;
    background-color: #f9f9f9;
}

.modal-info-section p {
    margin: 5px 0;
    font-size: 0.95rem;
    color: var(--color-text);
}

.modal-info-section p strong {
    display: inline-block;
    min-width: 120px;
    color: var(--color-primary);
}

.modal-question {
    text-align: center;
    margin-top: 25px;
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--color-primary);
}

.modal-buttons {
    display: flex;
    justify-content: space-around;
    gap: 15px;
}

.modal-buttons button {
    flex-grow: 1;
    padding: 12px 20px;
    font-size: 1rem;
    border-radius: 5px;
    background: var(--color-primary);
}

.modal-buttons button.confirm-btn {
    background-color: #2ecc40;
}

.modal-buttons button.confirm-btn:hover {
    background-color: #229c30;
}

.modal-buttons button.cancel-btn {
    background-color: #ff4136;
}

.modal-buttons button.cancel-btn:hover {
    background-color: #c90000;
}

/* ====== SPINNER ====== */
.spinner {
    border: 5px solid #eee5f9;
    border-top: 5px solid var(--color-primary);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    animation: spin 0.9s linear infinite;
    margin: 0 auto 18px auto;
    display: block;
}

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

/* ====== UTILITIES ====== */
.hidden-field,
.hidden {
    display: none !important;
}

.form-hint {
    display: block;
    margin-top: 4px;
    font-size: 0.875rem;
    color: #6c757d;
}


/* ====== RESPONSIVE - DESKTOP & TABLET ====== */
@media (min-width: 768px) {
    body {
        padding-top: 94px;
    }

    .main-header {
        height: 70px;
    }

    .main-logo {
        height: 40px;
    }

    .container {
        max-width: 680px;
        padding: 48px 52px 44px;
        margin: 30px auto 40px;
    }

    h1 {
        font-size: 1.75rem;
        margin-bottom: 30px;
    }

    h2 {
        font-size: 1.3rem;
        margin-bottom: 18px;
    }

    input[type="text"],
    input[type="number"],
    select {
        font-size: 1.15rem;
        padding: 14px 18px;
    }

    label {
        font-size: 1.05rem;
    }

    button,
    #pay-btn {
        font-size: 1.15rem;
        padding: 18px 0;
    }

    .form-section,
    #service-data-info {
        padding: 16px 0 12px 0;
        margin-bottom: 20px;
    }

    .form-group {
        margin-bottom: 24px;
    }

    .site-footer {
        padding: 40px 30px 30px;
    }

    .footer-inner {
        padding: 0 20px;
        max-width: 1200px;
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .container {
        max-width: 720px;
        padding: 52px 60px 48px;
    }

    h1 {
        font-size: 2rem;
        margin-bottom: 34px;
    }

    .form-section,
    #service-data-info {
        padding: 20px 0 16px 0;
    }

    .site-footer {
        padding: 45px 40px 35px;
    }
}

/* ====== RESPONSIVE - TABLET ====== */
@media (max-width: 900px) {
    .footer-inner {
        flex-direction: column;
        gap: 20px;
    }

    .footer-block {
        min-width: unset;
        width: 100%;
    }
}

/* ====== RESPONSIVE - MOBILE ====== */
@media (max-width: 600px) {
    body {
        padding-top: 74px;
    }

    .main-header {
        height: 60px;
        padding: 0 15px;
    }

    .main-logo {
        height: 28px;
    }

    .container {
        padding: 24px 20px;
        margin: 16px auto;
        width: calc(100% - 24px);
        border-radius: 16px;
    }

    h1 {
        font-size: 1.35rem;
        margin-bottom: 20px;
    }

    h2 {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }

    .form-section,
    #service-data-info {
        padding: 12px 8px;
        margin-bottom: 14px;
    }

    .form-group {
        margin-bottom: 18px;
    }

    input[type="text"],
    input[type="number"],
    select {
        font-size: 16px;
        padding: 12px 14px;
    }

    button,
    #pay-btn {
        padding: 15px 0;
        font-size: 1rem;
    }
    
    .site-footer {
        padding: 30px 16px 24px;
    }
    
    .footer-inner {
        gap: 18px;
        font-size: 1em;
    }

    .footer-block {
        padding: 0;
    }

    .footer-block h4 {
        font-size: 1.02em;
        margin-bottom: 10px;
    }

    .footer-contacts {
        font-size: 0.95em;
        margin-top: 8px;
    }

    .footer-bottom {
        margin-top: 24px;
        font-size: 0.9em;
    }

    .modal-content {
        width: 94%;
        padding: 24px 20px;
        max-height: 85vh;
    }

    .modal-content h2 {
        font-size: 1.3rem;
        margin-bottom: 16px;
    }

    .modal-info-section {
        padding: 12px 10px;
        margin-bottom: 16px;
    }

    .modal-info-section p {
        font-size: 0.9rem;
    }

    .modal-buttons {
        gap: 12px;
        flex-direction: column;
    }

    .modal-buttons button {
        width: 100%;
        padding: 14px 20px;
    }

    .version-info {
        font-size: 0.75em;
        bottom: 8px;
        right: 8px;
    }
}

/* ====== RESPONSIVE - SMALL MOBILE (iPhone SE) ====== */
@media (max-width: 375px) {
    .container {
        width: calc(100% - 20px);
        padding: 20px 16px;
        margin: 12px auto;
    }

    h1 {
        font-size: 1.25rem;
    }

    .footer-block h4 {
        font-size: 1em;
    }

    .footer-contacts {
        font-size: 0.9em;
    }
}

/* ====== RESPONSIVE - LARGE MOBILE (iPhone 14 Pro Max) ====== */
@media (min-width: 430px) and (max-width: 600px) {
    .container {
        max-width: 400px;
    }
}

/* ====== iOS SPECIFIC FIXES ====== */
@supports (-webkit-touch-callout: none) {
    body {
        -webkit-text-size-adjust: 100%;
    }

    input[type="text"],
    input[type="number"],
    select {
        font-size: 16px !important;
    }

    .modal-content {
        -webkit-overflow-scrolling: touch;
    }
}



/* ====== DESKTOP OPTIMIZATIONS ====== */

/* Tablet оптимізація */
@media (min-width: 768px) {
    body {
        padding-top: 80px;
    }

    .main-header {
        height: 70px;
    }

    .main-logo {
        height: 40px;
    }

    h1 {
        font-size: 1.75rem;
        margin-bottom: 20px;
    }
    
    h2 {
        font-size: 1.25rem;
        margin-bottom: 12px;
    }
    
    h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    
    .container {
        padding: 36px 48px 40px;
        margin-top: 20px;
        margin-bottom: 24px;
    }

    .form-section,
    #service-data-info {
        padding: 18px 24px 14px;
    }
}

/* Desktop - 2 колонки */

/* ====== HIDDEN INPUTS IN GRID ====== */
#dynamic-fields .form-group:has(input[type="hidden"]) {
    display: none;
}

@media (min-width: 1024px) {
    .container {
        max-width: 880px;
    }
    
    /* Динамічні поля в 2 колонки */
    #dynamic-fields {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px 24px;
        justify-items: start;
    }
    
    #dynamic-fields .form-group {
        width: 100%;
    }
    
    /* Якщо поле description_pay - на всю ширину */
    #dynamic-fields .form-group.full-width {
        grid-column: 1 / -1;
    }
    
    /* Реквізити в 2 колонки */
    #reg-data-display {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px 24px;
    }
    
    #reg-data-display p {
        margin: 8px 0;
    }
    
    /* Amount field на всю ширину */
    .form-group:has(#amount-container) {
        grid-column: 1 / -1;
    }
    
    /* Компактніші відступи */
    .form-section,
    #service-data-info {
        padding: 16px 24px 14px;
        margin-bottom: 14px;
    }
    
    .form-group {
        margin-bottom: 16px;
    }

    input[type="text"],
    input[type="number"],
    select {
        font-size: 1rem;
        padding: 12px 16px;
    }

    button,
    #pay-btn {
        font-size: 1.05rem;
        padding: 16px 0;
    }
}

/* Large Desktop - 3 колонки */
@media (min-width: 1440px) {
    .container {
        max-width: 1080px;
        padding: 40px 56px 44px;
    }
    
    /* 3 колонки для динамічних полів якщо їх 3+ */
    #dynamic-fields {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 16px 28px;
        justify-items: start;
    }
    
    #dynamic-fields .form-group {
        width: 100%;
    }
    
    /* Реквізити в 3 колонки */
    #reg-data-display {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 10px 28px;
    }

    .form-section,
    #service-data-info {
        padding: 20px 28px 16px;
    }
}

/* XL Desktop - максимальна ширина */
@media (min-width: 1920px) {
    .container {
        max-width: 1200px;
    }

    .footer-inner {
        max-width: 1400px;
    }
}

/* ====== PAYMENT RESULT PAGE SPECIFIC ====== */
.payment-result-container {
    text-align: center;
}

#payment-status-message-display {
    padding: 20px;
    margin: 20px 0;
    border-radius: 12px;
    font-size: 1.1rem;
    line-height: 1.6;
}

#payment-status-message-display.success {
    background: #d4edda;
    border: 2px solid #c3e6cb;
    color: #155724;
}

#payment-status-message-display.error {
    background: var(--color-error-bg);
    border: 2px solid var(--color-error-border);
    color: var(--color-error);
}

#payment-status-message-display.pending {
    background: #fff3cd;
    border: 2px solid #ffeaa7;
    color: #856404;
}

.receipt-section {
    margin: 24px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.receipt-section p {
    margin: 0;
    font-size: 1.05rem;
}

.receipt-section a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
}

.receipt-section a:hover {
    color: var(--color-accent);
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.action-buttons button {
    margin-top: 0;
}

/* Payment Result Mobile */
@media (max-width: 600px) {
    .payment-result-container {
        padding: 20px 16px;
    }

    #payment-status-message-display {
        padding: 16px;
        margin: 16px 0;
        font-size: 1rem;
    }

    .receipt-section {
        padding: 16px;
        margin: 20px 0;
    }

    .receipt-section p {
        font-size: 0.95rem;
    }

    .action-buttons {
        gap: 10px;
        margin-top: 20px;
    }
}

@media (max-width: 375px) {
    #payment-status-message-display {
        padding: 14px;
        font-size: 0.95rem;
    }

    .receipt-section {
        padding: 14px;
    }
}

/* Payment Result Desktop Optimizations */
@media (min-width: 768px) {
    .payment-result-container {
        padding: 48px 52px 44px;
    }

    #payment-status-message-display {
        padding: 24px;
        margin: 24px 0;
        font-size: 1.2rem;
    }

    .receipt-section {
        padding: 24px;
        margin: 28px 0;
    }

    .receipt-section p {
        font-size: 1.1rem;
    }

    .action-buttons {
        flex-direction: row;
        gap: 16px;
        margin-top: 28px;
    }

    .action-buttons button {
        flex: 1;
    }
}

@media (min-width: 1200px) {
    .payment-result-container {
        padding: 52px 60px 48px;
    }

    #payment-status-message-display {
        padding: 28px;
        font-size: 1.25rem;
    }

    .receipt-section {
        padding: 28px;
    }
}

/* ====== DESKTOP MODAL OPTIMIZATION ====== */
@media (min-width: 768px) {
    .modal-content {
        max-width: 600px;
        padding: 36px 40px;
    }

    .modal-content h2 {
        font-size: 1.6rem;
    }

    .modal-info-section {
        padding: 16px 20px;
    }

    .modal-buttons {
        gap: 20px;
    }

    .modal-buttons button {
        padding: 14px 28px;
        font-size: 1.05rem;
    }
}

@media (min-width: 1024px) {
    .modal-content {
        max-width: 700px;
    }

    /* Дані в 2 колонки */
    #modal-dynamic-data-display {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px 20px;
    }

    #modal-dynamic-data-display p {
        margin: 6px 0;
    }
}

/* ====== DESKTOP PAYMENT RESULT OPTIMIZATION ====== */
@media (min-width: 768px) {
    .payment-result-container {
        max-width: 600px;
    }

    #payment-status-message-display {
        padding: 28px 32px;
        font-size: 1.2rem;
    }

    .receipt-section {
        padding: 24px 28px;
    }

    .action-buttons {
        flex-direction: row;
        gap: 16px;
        margin-top: 28px;
    }

    .action-buttons button {
        flex: 1;
    }
}

@media (min-width: 1024px) {
    .payment-result-container {
        max-width: 700px;
        padding: 40px 48px;
    }

    #payment-status-message-display {
        padding: 32px 40px;
        font-size: 1.3rem;
    }
}

/* ====== FIX: Dynamic Fields Alignment ====== */
#dynamic-fields .form-group {
    text-align: left;
}

#dynamic-fields label {
    text-align: left;
}

#dynamic-fields input,
#dynamic-fields select,
#dynamic-fields textarea {
    text-align: left;
}

/* Ensure reg-data is also left-aligned */
#reg-data-display {
    text-align: left;
}

#reg-data-display p {
    text-align: left;
}

/* ====== CRITICAL FIX: Force left alignment for grid items ====== */
@media (min-width: 1024px) {
    #dynamic-fields {
        justify-items: start;
    }
    
    #dynamic-fields .form-group {
        width: 100%;
        text-align: left;
    }
}

@media (min-width: 1440px) {
    #dynamic-fields {
        justify-items: start;
    }
}

/* ====== RECEIPT STATUS MESSAGE ====== */
.receipt-status-text {
    text-align: center;
    font-size: 1rem;
    color: #667eea;
    font-weight: 500;
    padding: 12px 16px;
    margin: 16px 0;
    background: #f0f4ff;
    border-radius: 8px;
    border: 1px solid #d0d9ff;
}

.receipt-status-text:empty {
    display: none;
}

/* Disabled button state */
button:disabled {
    opacity: 0.6 !important;
    cursor: not-allowed !important;
    background: #b8b8b8 !important;
}

@media (max-width: 600px) {
    .receipt-status-text {
        font-size: 0.9rem;
        padding: 10px 14px;
        margin: 14px 0;
    }
}