/* === Base Reset & Telegram Theme === */
:root {
    --tg-theme-bg-color: #ffffff;
    --tg-theme-text-color: #000000;
    --tg-theme-hint-color: #999999;
    --tg-theme-link-color: #2481cc;
    --tg-theme-button-color: #2481cc;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #f0f0f0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--tg-theme-text-color);
    background-color: var(--tg-theme-bg-color);
    -webkit-font-smoothing: antialiased;
}

body.modal-open {
    overflow: hidden;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 12px;
}

/* === App Header (USM-3 + VK Mini App) === */
.app-header {
    text-align: center;
    padding: 12px 12px 20px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--tg-theme-secondary-bg-color);
}

.app-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--tg-theme-text-color);
}

.app-subtitle {
    margin-top: 4px;
    font-size: 14px;
    color: var(--tg-theme-hint-color);
}

/* VK Mini App: native top bar overlaps the page, push content below it. */
body.vk-miniapp .container {
    padding-top: 64px;
}

/* === Auth Error === */
.auth-error {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    color: var(--tg-theme-hint-color);
    font-size: 18px;
    padding: 24px;
}

/* === Gallery Grid (T013) === */
.reports-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    padding-bottom: 24px;
}

@media (min-width: 480px) {
    .reports-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.report-tile {
    background-color: var(--tg-theme-secondary-bg-color);
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    border-left: 4px solid transparent;
    position: relative;
}

.report-tile:active {
    transform: scale(0.97);
}

.report-tile .tile-child-name {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 4px;
}

.report-tile .tile-date {
    font-size: 13px;
    color: var(--tg-theme-hint-color);
    margin-bottom: 8px;
}

.report-tile .tile-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    color: #fff;
}

.report-tile .tile-status {
    font-size: 13px;
    color: var(--tg-theme-hint-color);
    margin-top: 8px;
}

/* Category colors: yellow=preschool, blue=school, green=adult */
.category-preschool { background-color: #FFC107; color: #333; }
.category-school { background-color: #2196F3; }
.category-adult { background-color: #4CAF50; }

.tile-border-preschool { border-left-color: #FFC107; }
.tile-border-school { border-left-color: #2196F3; }
.tile-border-adult { border-left-color: #4CAF50; }

/* === Tile States (T021) === */
.tile-generating {
    opacity: 0.75;
    cursor: default;
}

.tile-generating:active {
    transform: none;
}

.tile-generating .spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--tg-theme-hint-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
    margin-right: 4px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.tile-error {
    opacity: 0.6;
    cursor: default;
}

.tile-error:active {
    transform: none;
}

.tile-error .tile-status {
    color: #e57373;
}

/* === Empty State (T020) === */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    color: var(--tg-theme-hint-color);
    padding: 32px 24px;
}

.empty-state p {
    font-size: 18px;
    margin-bottom: 8px;
}

.empty-state .empty-hint {
    font-size: 14px;
}

/* === Error State (T023) === */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    padding: 32px 24px;
}

.error-state p {
    font-size: 18px;
    color: var(--tg-theme-hint-color);
    margin-bottom: 16px;
}

.error-state .retry-btn {
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    border: none;
    border-radius: 8px;
    padding: 10px 24px;
    font-size: 15px;
    cursor: pointer;
}

.error-state .retry-btn:active {
    opacity: 0.8;
}

/* === Modal Overlay (T016) === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.modal-container {
    background-color: var(--tg-theme-bg-color);
    width: 100%;
    max-width: 600px;
    max-height: 92vh;
    overflow-y: auto;
    border-radius: 16px 16px 0 0;
    padding: 20px;
    position: relative;
    -webkit-overflow-scrolling: touch;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--tg-theme-hint-color);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.modal-body {
    padding-top: 8px;
}

/* Modal Header */
.modal-header {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--tg-theme-secondary-bg-color);
}

.modal-header .modal-child-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.modal-header .modal-meta {
    font-size: 14px;
    color: var(--tg-theme-hint-color);
}

.modal-header .modal-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    color: #fff;
    margin-left: 8px;
    vertical-align: middle;
}

/* Contact Block (T019) */
.contact-block {
    background-color: var(--tg-theme-secondary-bg-color);
    border-left: 3px solid var(--tg-theme-link-color);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 20px;
}

.contact-block .contact-label {
    font-size: 13px;
    color: var(--tg-theme-hint-color);
    margin-bottom: 4px;
}

.contact-block a {
    color: var(--tg-theme-link-color);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
}

/* === Download Bar === */
.download-bar {
    position: sticky;
    top: 0;
    z-index: 2;
    background-color: var(--tg-theme-bg-color);
    padding: 12px 0;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--tg-theme-secondary-bg-color);
}

.download-btn {
    display: block;
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s ease;
    text-align: center;
}

.download-btn:active {
    opacity: 0.8;
}

.download-btn-active {
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
}

.download-btn-pay {
    background-color: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
    border: 1px solid var(--tg-theme-hint-color);
}

.download-btn-pdf {
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
}

.download-price {
    opacity: 0.7;
    font-weight: 400;
    margin-left: 4px;
}

.price-old {
    text-decoration: line-through;
    opacity: 0.5;
    font-weight: 400;
    font-size: 14px;
}

.price-new {
    color: #e53935;
    font-weight: 700;
    font-size: 16px;
}

.price-current {
    font-weight: 600;
}

.discount-timer {
    text-align: center;
    font-size: 13px;
    color: #e53935;
    margin-top: 8px;
    padding: 6px 12px;
    background-color: #fce4ec;
    border-radius: 8px;
}

.timer-value {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}


/* Report Sections */
.report-section {
    margin-bottom: 20px;
}

.report-section h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--tg-theme-text-color);
}

.report-section .section-content {
    font-size: 15px;
    line-height: 1.6;
    color: var(--tg-theme-text-color);
}

.report-section .section-content p {
    margin-bottom: 10px;
}

.report-section .section-content ul,
.report-section .section-content ol {
    padding-left: 20px;
    margin-bottom: 10px;
}

.report-section .section-content li {
    margin-bottom: 4px;
}

/* Disclaimer */
.disclaimer {
    font-size: 13px;
    font-style: italic;
    color: var(--tg-theme-hint-color);
    border-top: 1px solid var(--tg-theme-secondary-bg-color);
    padding-top: 16px;
    margin-top: 24px;
    line-height: 1.5;
}

/* Modal Loading */
.modal-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--tg-theme-hint-color);
}

.modal-loading .spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--tg-theme-hint-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 10px;
}

.modal-error {
    text-align: center;
    padding: 40px 20px;
    color: var(--tg-theme-hint-color);
}

.modal-error .retry-btn {
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    border: none;
    border-radius: 8px;
    padding: 10px 24px;
    font-size: 15px;
    cursor: pointer;
    margin-top: 16px;
}

/* === Responsive (T026) === */
@media (max-width: 375px) {
    .container {
        padding: 8px;
    }
    .report-tile {
        padding: 12px;
    }
    .modal-container {
        padding: 16px;
    }
    .report-section .section-content {
        font-size: 14px;
    }
}

@supports (padding-top: env(safe-area-inset-top)) {
    .modal-container {
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
    }
    .container {
        padding-top: calc(12px + env(safe-area-inset-top));
    }
}

@media (orientation: landscape) {
    .modal-container {
        max-height: 88vh;
        border-radius: 12px 12px 0 0;
    }
}