:root {
    --bg-color: #212529;
    --card-bg: #343a40;
    --text-color: #f8f9fa;
    --text-secondary: #c1c1c1;
    --accent-color: #e4c603;
    --border-color: #495057;
    --modal-overlay: rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

input, textarea, select {
    -webkit-user-select: text;
    user-select: text;
}

html {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 18px;
    line-height: 1.6;
    padding-bottom: 70px; 
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.content-wrapper {
    position: relative;
}

.content-wrapper::after {
    content: '';
    position: fixed;
    bottom: 60px;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(to top, var(--bg-color), transparent);
    pointer-events: none;
}

.page-content {
    padding: 1.5rem;
    padding-top: 0;
}

.page-header {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.page-header img:not(.header-emblem) {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, var(--bg-color) 25%, transparent 100%);
    z-index: 1;
}

#header-home img {
    object-position: center center;
}

#header-emergencia img {
    object-position: center center;
}

#header-operacao img {
    object-position: center center;
}

#header-manifesto img {
    object-position: center center;
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

h3 {
    margin-bottom: 1.7rem;
    font-weight: 600;
}

.page-header h1 {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 2;
    padding: 1.9rem;
    padding-top: 0;
    padding-left: 1.5rem;
    margin-bottom: 0;
    font-size: 1.75rem;
    line-height: 1.2;
}

.header-emblem {
    position: absolute;
    bottom: 7.2rem;
    left: 1.5rem;
    width: 160px;
    height: auto;
    z-index: 3;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

ul {
    margin-left: 20px;
    margin-bottom: 1.7rem;
    color: var(--text-secondary);
}

.action-bar {
    display: flex;
    margin-top: 0.5rem;
    margin-bottom: 1.7rem;
}

.text-accent {
    color: var(--accent-color);
    font-weight: 700;
}

.share-chip {
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
    padding: 6px 16px 6px 12px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-family: inherit;
}

.share-chip .material-symbols-rounded {
    font-size: 18px;
    color: var(--accent-color);
}

.accordion-header {
    background-color: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    padding: 16px;
    width: 100%;
    border: 1px solid var(--border-color);
    text-align: left;
    outline: none;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.accordion-header .material-symbols-rounded {
    transition: transform 0.3s ease;
    color: var(--accent-color);
}

.accordion-header.active .material-symbols-rounded {
    transform: rotate(180deg);
}

.accordion-panel {
    padding: 0 8px;
    background-color: transparent;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    margin-bottom: 8px;
}

.accordion-body {
    padding: 25px 8px 5px 8px;
    color: var(--text-secondary);
}

.q-code-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: -10px;
    margin-bottom: 20px;
}

.q-code-table th, .q-code-table td {
    padding: 12px 0;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.q-code-table th {
    color: var(--accent-color);
    font-weight: 700;
    white-space: nowrap;
    padding-right: 55px;
    border-bottom: 2px solid var(--border-color);
}

.q-code-table tr:last-child td {
    border-bottom: none;
}

.channel-list-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.channel-card {
    display: flex;
    background-color: var(--card-bg);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    align-items: center;
    justify-content: center;
}

.channel-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-align: right;
    padding-right: 1rem;
    border-right: 1px solid var(--border-color);
}

.channel-freq {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    text-align: left;
    padding-left: 1rem;
}

.cor-emergencia {
    background-color: #610000;
}

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: var(--bg-color);
    z-index: 1000;
}

.bottom-nav nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 100%;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    height: 100%;
    padding: 4px 0;
    transition: color 0.2s ease;
}

.nav-btn .material-symbols-rounded {
    font-size: 28px;
}

.nav-btn.active {
    color: var(--accent-color);
}

@media (hover: hover) {
    .nav-btn:not(.active):hover {
        color: var(--accent-color);
    }
}

.menu-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 60px;
    background: var(--modal-overlay);
    z-index: 1100;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    padding: 1rem;
    animation: fadeIn 0.3s ease;
}

.menu-modal-content {
    background-color: var(--card-bg);
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    padding: 1rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    transform: translateY(20px);
    opacity: 0;
    animation: slideUp 0.3s ease forwards;
}

.menu-modal-content a {
    display: flex;
    align-items: center;
    padding: 12px 10px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
}

.menu-modal-content a .material-symbols-rounded {
    margin-right: 16px;
    font-size: 26px;
}

.menu-modal-content a.active {
    color: var(--accent-color);
    background-color: rgba(232, 210, 26, 0.1);
}

@media (hover: hover) {
    .menu-modal-content a:not(.active):hover {
        background-color: rgba(0, 0, 0, 0.2);
    }
}

.system-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}

.system-modal-card {
    background-color: var(--bg-color);
    border-radius: 12px;
    width: 100%;
    max-width: 320px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: zoomIn 0.3s ease forwards;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.system-modal-card h3 {
    color: var(--text-color);
    margin-bottom: 12px;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
}

.system-modal-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 1rem;
    line-height: 1.5;
}

.system-modal-actions {
    display: flex;
    width: 100%;
    gap: 12px;
    justify-content: center;
}

.sys-modal-btn {
    flex: 1;
    padding: 6px;
    border: none;
    border-radius: 18px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sys-modal-btn:active {
    opacity: 0.8;
}

.sys-btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.sys-btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        transform: translateY(20px);
        opacity: 0;
    }
    to { 
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes zoomIn {
    from { 
        transform: scale(0.9);
        opacity: 0;
    }
    to { 
        transform: scale(1);
        opacity: 1;
    }
}

.install-toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    background-color: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 10px 12px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    white-space: nowrap;
    animation: slideDown 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.install-toast .material-symbols-rounded {
    font-size: 20px;
    line-height: 1;
}

@keyframes slideDown {
    from {
        top: -80px;
        opacity: 0;
    }
    to {
        top: 20px;
        opacity: 1;
    }
}

.ios-prompt {
    position: fixed;
    bottom: 55px;
    left: 50%;
    transform: translateX(-50%);
    width: 350px;
    max-width: calc(100% - 30px);
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 20px 15px 15px 20px;
    box-shadow: 0px 4px 20px rgba(0,0,0,0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    z-index: 2500;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    animation: slideUpPrompt 0.5s ease-out;
}

.ios-prompt .close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.ios-prompt p {
    margin: 0 0 15px 0;
    font-size: 16px;
    padding-right: 20px;
    color: var(--text-color);
}

.ios-prompt .step {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.ios-prompt .step strong {
    color: var(--text-color);
}

.ios-prompt .step svg {
    margin: 0 8px;
    stroke: var(--accent-color);
}

@keyframes slideUpPrompt {
    from { 
        transform: translate(-50%, 50px); 
        opacity: 0; 
    }
    to { 
        transform: translate(-50%, 0); 
        opacity: 1; 
    }
}

@media (min-width: 768px) {
    body {
        display: flex;
        justify-content: center;
    }

    .content-wrapper,
    .bottom-nav {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .content-wrapper::after {
        width: 600px;
        max-width: 100%;
        left: 50%;
        transform: translateX(-50%);
        right: auto;
    }

    .menu-modal-overlay {
        left: auto;
        right: auto;
        width: 100%;
        max-width: 600px;
        bottom: 60px;
    }

    .system-modal-overlay {
        width: 100%;
        max-width: 600px;
        left: 50%;
        transform: translateX(-50%);
    }
}

#header-sobre img {
    object-position: center;
}

.action-bar-compact {
    margin-top: -1rem;
    margin-bottom: 1.7rem;
    display: flex;
}

.tech-list {
    list-style: none;
    margin-left: 0;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.tech-list .material-symbols-rounded {
    color: var(--accent-color);
}

.page-header video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    transform: scale(1.6);
    transform-origin: 50% 100%;
}

.resource-card {
    margin: 2.5rem 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.resource-card h4 {
    font-size: 1.75rem;
    color: var(--text-color);
}

.resource-card p {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.resource-card img {
    border-radius: 8px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    max-width: 95%;
}