/* ============================================================
   КП «СУЧАСНЕ МІСТО» — PAYMENT PAGE STYLES
   Design: official Kharkiv city portal style
   Colors: deep blue + gold/yellow, clean government aesthetic
   ============================================================ */

/* ====== CSS VARIABLES ====== */
:root {
    /* Основна палітра — синьо-жовта (кольори Харкова) */
    --color-primary:      #1a3a6b;   /* темно-синій */
    --color-primary-mid:  #254d96;   /* середній синій */
    --color-primary-light:#3366b3;   /* світлий синій */
    --color-accent:       #f5b800;   /* золотисто-жовтий */
    --color-accent-dark:  #d49e00;   /* темно-золотий */
    --color-accent-light: #fff3b0;   /* світло-жовтий */

    /* Фони */
    --color-bg:           #f0f4f9;
    --color-surface:      #ffffff;
    --color-surface-2:    #f7f9fc;
    --color-border:       #d0dae8;

    /* Текст */
    --color-text:         #1a2340;
    --color-text-muted:   #5a6a82;
    --color-text-light:   #8898aa;

    /* Стани */
    --color-error:        #d32f2f;
    --color-error-bg:     #fff5f5;
    --color-success:      #2e7d32;
    --color-success-bg:   #f1f8f1;

    /* Шапка / футер */
    --color-header-bg:    #ffffff;
    --color-footer-bg:    #1a3a6b;
    --color-stripe:       #f5b800;

    /* Типографіка */
    --font-primary:       'Montserrat', Arial, sans-serif;
    --font-body:          'Open Sans', Arial, sans-serif;

    /* Тіні */
    --shadow-sm:   0 1px 4px rgba(26,58,107,0.08);
    --shadow-md:   0 4px 16px rgba(26,58,107,0.10);
    --shadow-lg:   0 8px 32px rgba(26,58,107,0.13);

    /* Радіуси */
    --radius-sm:   6px;
    --radius-md:   10px;
    --radius-lg:   16px;
    --radius-xl:   22px;
}

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

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 72px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ====== TOP STRIPE ====== */
.top-stripe {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, #ffdd57 40%, var(--color-accent) 100%);
    z-index: 1100;
}

/* ====== HEADER ====== */
.main-header {
    position: fixed;
    top: 4px;
    left: 0;
    right: 0;
    height: 68px;
    background: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(16px, 4vw, 40px);
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.main-logo {
    height: 40px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.logo-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-primary);
    letter-spacing: 0.01em;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    font-weight: 400;
    line-height: 1.2;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    font-family: var(--font-primary);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-primary-mid);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--color-accent-light);
    color: var(--color-primary);
}

/* ====== BREADCRUMB ====== */
.breadcrumb-bar {
    background: var(--color-primary);
    padding: 0;
    width: 100%;
}

.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 8px clamp(16px, 4vw, 40px);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.75);
}

.breadcrumb-inner a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    transition: color 0.15s;
}

.breadcrumb-inner a:hover {
    color: var(--color-accent);
}

.breadcrumb-sep {
    color: rgba(255,255,255,0.45);
    font-size: 0.9rem;
}

/* ====== MAIN & CONTAINER ====== */
.page-main {
    flex: 1 0 auto;
    padding: 24px 16px 40px;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    width: 100%;
}

/* ====== PAGE HEADER ====== */
.page-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-border);
}

.page-header-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-mid));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

h1 {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--color-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

/* ====== SECTION TITLE ====== */
.section-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
    margin: 0 0 18px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

/* ====== LOADING BLOCK ====== */
.loading-block {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 16px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ====== FORM SECTION (CARD) ====== */
.form-section {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    padding: 28px 32px 32px;
    margin-bottom: 20px;
}

/* ====== SERVICE INFO CARD (РЕКВІЗИТИ) ====== */
.service-info-card {
    background: linear-gradient(135deg, #f0f4f9 0%, #e8eef7 100%);
    border: 1px solid #c8d8ef;
    border-left: 4px solid var(--color-primary-mid);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 22px;
}

.service-info-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.service-info-header svg {
    flex-shrink: 0;
    color: var(--color-primary-mid);
}

.service-info-header h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.9rem;
    margin: 0;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.reg-data-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
}

.reg-data-grid p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--color-text);
    line-height: 1.5;
}

.reg-data-grid p strong {
    color: var(--color-primary);
    min-width: 80px;
    display: inline-block;
    font-weight: 600;
}

/* ====== FORM GROUPS & INPUTS ====== */
.dynamic-fields-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4px;
}

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

label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--color-primary);
    margin-bottom: 6px;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    border: 1.5px solid var(--color-border);
    background: var(--color-surface-2);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.97rem;
    padding: 11px 14px;
    color: var(--color-text);
    outline: none;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
    -webkit-appearance: none;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    border-color: var(--color-primary-light);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(37, 77, 150, 0.10);
}

input.readonly {
    background: #f0f2f5;
    color: var(--color-text-muted);
    cursor: default;
}

small, .form-hint {
    display: block;
    margin-top: 4px;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* ====== AMOUNT FORM GROUP ====== */
.amount-form-group {
    margin-top: 8px;
}

/* ====== SUBMIT BUTTON ====== */
.btn-primary,
#pay-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
    color: #fff;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    border-radius: 50px;
    padding: 16px 32px;
    margin-top: 20px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(26,58,107,0.25);
    transition: transform 0.15s, box-shadow 0.15s, background 0.2s;
    position: relative;
    overflow: hidden;
}

.btn-primary::after,
#pay-btn::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 100%);
    pointer-events: none;
}

.btn-primary:hover:not(:disabled),
#pay-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(26,58,107,0.32);
    background: linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-primary-light) 100%);
}

.btn-primary:active:not(:disabled),
#pay-btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled,
#pay-btn:disabled {
    background: #c5cfd9;
    color: #8898aa;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

/* Вторинна кнопка */
.btn-secondary {
    width: 100%;
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid var(--color-primary);
    border-radius: 50px;
    padding: 13px 24px;
    margin-top: 10px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: #fff;
}

/* ====== ERROR ====== */
.error-message {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--color-error);
    background: var(--color-error-bg);
    border: 1.5px solid #f5c6c6;
    border-left: 4px solid var(--color-error);
    font-size: 0.9rem;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    line-height: 1.5;
}

/* ====== SPINNER ====== */
.spinner {
    border: 3px solid rgba(26,58,107,0.12);
    border-top: 3px solid var(--color-primary-mid);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    animation: spin 0.9s linear infinite;
    flex-shrink: 0;
}

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

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

/* ====== VERSION ====== */
.version-info {
    font-size: 0.75rem;
    color: var(--color-text-light);
    position: fixed;
    bottom: 10px;
    right: 14px;
    z-index: 900;
    background: rgba(255,255,255,0.85);
    padding: 2px 8px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

/* ====== MODALS ====== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 25, 55, 0.65);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    padding: 16px;
    backdrop-filter: blur(3px);
}

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

.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(10,25,55,0.3);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(16px) scale(0.98);
    transition: transform 0.25s ease;
    border: 1px solid var(--color-border);
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 24px 28px 18px;
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-primary);
    margin: 0;
    text-align: left;
}

.modal-header-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.confirm-icon {
    background: rgba(37, 77, 150, 0.1);
    color: var(--color-primary-mid);
}

.status-icon {
    background: rgba(245, 184, 0, 0.15);
    color: var(--color-accent-dark);
}

.modal-body {
    padding: 20px 28px 28px;
}

.modal-info-section {
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    margin-bottom: 14px;
}

.modal-info-section h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 10px 0;
}

.modal-info-section p {
    margin: 5px 0;
    font-size: 0.88rem;
    color: var(--color-text);
    line-height: 1.5;
}

.modal-info-section p strong {
    color: var(--color-primary);
    font-weight: 600;
    min-width: 100px;
    display: inline-block;
}

.modal-amounts {
    margin-top: 12px;
    border-top: 1px dashed var(--color-border);
    padding-top: 10px;
}

.modal-amount-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 0.88rem;
    color: var(--color-text);
}

.modal-amount-row.total-row {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    border-top: 1px solid var(--color-border);
    margin-top: 6px;
    padding-top: 8px;
}

.modal-question {
    text-align: center;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--color-primary);
    margin: 18px 0 14px;
}

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

.btn-confirm {
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
    color: #fff;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    border: none;
    border-radius: 50px;
    padding: 14px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 3px 12px rgba(26,58,107,0.22);
}

.btn-confirm:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 18px rgba(26,58,107,0.30);
}

.btn-cancel {
    width: 100%;
    background: transparent;
    color: var(--color-text-muted);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1.5px solid var(--color-border);
    border-radius: 50px;
    padding: 12px;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

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

/* ====== FOOTER ====== */
.site-footer {
    background: var(--color-footer-bg);
    color: rgba(255,255,255,0.85);
    padding: 40px 0 0;
    flex-shrink: 0;
    border-top: 4px solid var(--color-accent);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 40px);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.footer-brand {}

.footer-logo {
    height: 48px;
    width: auto;
    margin-bottom: 12px;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.footer-brand-desc {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    margin: 0;
    max-width: 260px;
}

.footer-block h4 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 14px 0;
}

.footer-contacts {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-contacts p {
    margin: 0;
    font-size: 0.84rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.5;
}

.footer-contacts a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.15s;
}

.footer-contacts a:hover {
    color: var(--color-accent);
}

.footer-hours {
    font-size: 0.78rem !important;
    color: rgba(255,255,255,0.55) !important;
    margin-top: 4px !important;
}

.footer-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-nav li a {
    font-size: 0.84rem;
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    transition: color 0.15s;
}

.footer-nav li a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 32px;
    padding: 16px clamp(16px, 4vw, 40px);
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.78rem;
    color: rgba(255,255,255,0.5);
}

.footer-powered a {
    color: rgba(255,255,255,0.65);
    text-decoration: none;
}

.footer-powered a:hover {
    color: var(--color-accent);
}

/* ====== PAYMENT RESULT PAGE ====== */
.payment-result-container h1 {
    font-size: 1.5rem;
}

#payment-status-message-display {
    padding: 20px;
    margin: 20px 0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    line-height: 1.6;
}

#payment-status-message-display.success {
    background: var(--color-success-bg);
    border: 2px solid #a5d6a7;
    color: var(--color-success);
}

#payment-status-message-display.error {
    background: var(--color-error-bg);
    border: 2px solid #f5c6c6;
    color: var(--color-error);
}

#payment-status-message-display.pending {
    background: #fffde7;
    border: 2px solid #fff176;
    color: #795548;
}

.receipt-section {
    margin: 20px 0;
    padding: 18px;
    background: var(--color-surface-2);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.receipt-section p {
    margin: 0;
    font-size: 0.95rem;
}

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

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

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}

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

.receipt-status-text {
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-primary-light);
    font-weight: 500;
    padding: 10px 14px;
    margin: 14px 0;
    background: rgba(37,77,150,0.07);
    border-radius: var(--radius-md);
}

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

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

/* ====== RESPONSIVE ====== */

/* Tablet ≥ 768px */
@media (min-width: 768px) {
    body { padding-top: 76px; }

    .reg-data-grid {
        grid-template-columns: 1fr 1fr;
    }

    .dynamic-fields-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0 20px;
    }

    #dynamic-fields .form-group:has(#amount-container) {
        grid-column: 1 / -1;
    }

    .modal-buttons {
        flex-direction: row;
    }

    .action-buttons {
        flex-direction: row;
    }

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

/* Desktop ≥ 1024px */
@media (min-width: 1024px) {
    .container {
        max-width: 780px;
    }

    .form-section {
        padding: 32px 40px 36px;
    }

    #modal-dynamic-data-display {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px 16px;
    }
}

/* Tablet nav hidden */
@media (max-width: 820px) {
    .header-nav { display: none; }
    .logo-subtitle { display: none; }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

/* Mobile ≤ 600px */
@media (max-width: 600px) {
    body { padding-top: 68px; }

    .main-header { height: 64px; }
    .top-stripe  { height: 3px; }

    .main-logo { height: 32px; }
    .logo-title { font-size: 0.88rem; }

    .page-main { padding: 16px 12px 32px; }

    .form-section {
        padding: 20px 18px 24px;
        border-radius: var(--radius-lg);
    }

    h1 { font-size: 1.3rem; }
    .section-title { font-size: 1rem; }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-brand { grid-column: 1; }
    .footer-brand-desc { max-width: 100%; }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 4px;
    }

    .modal-content {
        border-radius: var(--radius-lg);
        max-height: 88vh;
    }

    .modal-header {
        padding: 18px 20px 14px;
    }

    .modal-body {
        padding: 16px 20px 22px;
    }

    .modal-buttons {
        flex-direction: column;
    }
}

/* Small mobile ≤ 375px */
@media (max-width: 375px) {
    .form-section { padding: 16px 14px 20px; }
    h1 { font-size: 1.18rem; }
}

/* iOS 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; }
}