/* Professional Dark & Pink Theme */
:root {
    /* Main Theme (Professional Dark Mode) */
    --bg-color: #121212;
    /* Dark Grey/Black background */
    --card-bg: #1e1e1e;
    /* Slightly lighter for cards */
    --text-color: #e0e0e0;
    /* Light grey text for readability */
    --text-muted: #a0a0a0;
    /* Muted text */
    --accent-color: #ff1493;
    /* Deep Pink for primary actions */
    --accent-hover: #ff69b4;
    /* Hot Pink for hover */
    --border-color: #333333;
    /* Subtle dark borders */
    --input-bg: #2c2c2c;
    /* Dark inputs */
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    /* Smooth shadow */
    --border-width: 1px;
    --nav-bg: #000000;
    /* Black Navbar */
    --nav-border: #ff1493;
    /* Pink underline */
}

/* Optional Light Mode for "High Contrast" button if user wants to switch */
body.high-contrast {
    /* Light/High Contrast Mode */
    --bg-color: #ffffff;
    --card-bg: #f8f9fa;
    --text-color: #000000;
    --text-muted: #333333;
    --accent-color: #d10074;
    /* Darker Pink for contrast on white */
    --accent-hover: #ff1493;
    --border-color: #000000;
    --input-bg: #ffffff;
    --shadow: none;
    --border-width: 2px;
    --nav-bg: #ffffff;
    --nav-border: #d10074;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', 'Segoe UI', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

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

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
    flex: 1;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

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

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mt-4 {
    margin-top: 1.5rem;
}

/* Flex Utilities */
.flex-wrap {
    flex-wrap: wrap;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.text-center {
    text-align: center;
}

.w-100 {
    width: 100%;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: radial-gradient(circle at center, #1a0b14 0%, #000000 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    border-top: 4px solid var(--accent-color);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(255, 20, 147, 0.2);
    /* Pink glow */
}

/* Buttons */
button,
.btn,
input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    /* Space between icon and text */
    padding: 12px 20px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background-color 0.3s ease, transform 0.1s ease;
    text-align: center;
    min-width: 100px;
}

button:hover,
.btn:hover,
input[type="submit"]:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-small {
    width: auto;
    padding: 8px 16px;
    font-size: 0.85rem;
    min-width: unset;
}

.btn-secondary {
    background-color: #333;
    color: #fff;
    border: 1px solid #444;
}

.btn-secondary:hover {
    background-color: #444;
}

/* Navbar */
.navbar {
    background-color: var(--nav-bg);
    padding: 0 20px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--nav-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.logo h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-color);
}

.btn-toggle {
    background: transparent !important;
    border: 1px solid var(--text-muted) !important;
    color: var(--text-muted) !important;
    padding: 6px 12px !important;
    width: auto !important;
    font-size: 0.8rem;
    text-transform: none;
}

.btn-toggle:hover {
    border-color: var(--accent-color) !important;
    color: var(--accent-color) !important;
}

/* Logout Link */
.nav-links a.nav-logout {
    color: #ff4444;
}

.nav-links a.nav-logout:hover {
    color: #ff6666;
}

body.high-contrast .nav-links a.nav-logout {
    color: #cc0000;
}

body.high-contrast .nav-links a.nav-logout:hover {
    color: #ff0000;
}

/* Tables */
.table-container {
    overflow-x: auto;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.05);
}

tr:last-child td {
    border-bottom: none;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-color);
    box-shadow: var(--shadow);
}

.stat-title {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Utilities */
.text-danger {
    color: #ff5252;
}

strong {
    color: var(--text-color);
}

p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Overrides */
select option {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Dashboard Specifics */
.chart-wrapper {
    position: relative;
    height: 300px;
    width: 100%;
}

.stat-card {
    position: relative;
    overflow: hidden;
}

.stat-icon {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 2.5rem;
    color: var(--accent-color);
    opacity: 0.1;
    transition: opacity 0.3s ease;
}

.stat-card:hover .stat-icon {
    opacity: 0.2;
    transform: scale(1.1);
}

.page-header {
    margin: 20px 0 30px 0;
}

/* ==================================== */
/* RESPONSIVE DESIGN - Mobile First    */
/* ==================================== */

/* Hamburger Menu Button */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 3px 0;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hamburger Animation */
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation Overlay */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999;
}

.nav-overlay.active {
    display: block;
}

/* Utility Classes for Responsive */
.hide-mobile {
    display: block;
}

.show-mobile {
    display: none;
}

/* ===== Tablet and Small Desktop (max-width: 992px) ===== */
@media screen and (max-width: 992px) {
    .container {
        padding: 20px 15px;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 15px;
    }

    .card {
        padding: 1.5rem;
    }

    th,
    td {
        padding: 12px 10px;
        font-size: 0.9rem;
    }
}

/* ===== Mobile Devices (max-width: 768px) ===== */
@media screen and (max-width: 768px) {

    /* Show Hamburger */
    .hamburger {
        display: flex !important;
    }

    /* Mobile Navigation - HIDDEN BY DEFAULT */
    .nav-links {
        position: fixed !important;
        top: 60px !important;
        left: -100% !important;
        width: 100% !important;
        height: calc(100vh - 60px) !important;
        background-color: var(--nav-bg) !important;
        flex-direction: column !important;
        gap: 0 !important;
        padding: 20px 0 !important;
        transition: left 0.3s ease !important;
        z-index: 1000 !important;
        overflow-y: auto !important;
        align-items: stretch !important;
    }

    /* Mobile Navigation - VISIBLE WHEN ACTIVE */
    .nav-links.active {
        left: 0 !important;
    }

    .nav-links a {
        padding: 15px 25px !important;
        border-bottom: 1px solid var(--border-color) !important;
        width: 100% !important;
        font-size: 1rem !important;
        display: flex !important;
        box-sizing: border-box !important;
    }

    .nav-links a:hover {
        background-color: rgba(255, 20, 147, 0.1) !important;
    }

    .btn-toggle {
        margin: 15px 25px !important;
        width: calc(100% - 50px) !important;
        justify-content: center !important;
    }

    /* Navbar Adjustments */
    .navbar {
        height: 60px;
        padding: 0 15px;
    }

    .logo h2 {
        font-size: 1.2rem;
    }

    .logo img {
        height: 40px !important;
    }

    /* Container & Page Header */
    .container {
        padding: 15px 10px;
    }

    .page-header {
        margin: 15px 0 20px 0;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    /* Flex Between - Stack on Mobile */
    .flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }

    .flex-between .btn,
    .flex-between a.btn {
        width: 100%;
        justify-content: center;
    }

    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stat-card {
        padding: 20px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .stat-title {
        font-size: 0.8rem;
    }

    /* Cards */
    .card {
        padding: 1.25rem;
        margin-bottom: 15px;
        border-radius: 8px;
    }

    /* Charts */
    .chart-wrapper {
        height: 250px;
    }

    /* Forms */
    .form-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="date"],
    select {
        padding: 14px 12px;
        font-size: 16px;
        /* Prevents iOS zoom */
    }

    label {
        font-size: 0.85rem;
    }

    /* Buttons */
    button,
    .btn,
    input[type="submit"] {
        padding: 14px 18px;
        font-size: 0.9rem;
        width: 100%;
    }

    .btn-small {
        padding: 10px 14px;
        font-size: 0.8rem;
        width: auto;
    }

    /* Tables - Responsive */
    .table-container {
        padding: 0.5rem;
        margin: 0 -10px;
        border-radius: 0;
    }

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    th,
    td {
        padding: 12px 15px;
        font-size: 0.85rem;
        min-width: 100px;
    }

    th {
        font-size: 0.75rem;
    }

    /* Action buttons in tables */
    td .flex-center {
        gap: 8px;
    }

    td .btn-small {
        padding: 8px 12px;
        min-width: unset;
    }

    /* Login Card */
    .auth-container {
        padding: 20px;
    }

    .login-card {
        padding: 1.5rem;
        max-width: 100%;
    }

    /* Hide/Show Mobile */
    .hide-mobile {
        display: none !important;
    }

    .show-mobile {
        display: block !important;
    }
}

/* ===== Small Mobile Devices (max-width: 480px) ===== */
@media screen and (max-width: 480px) {
    .navbar {
        height: 55px;
    }

    .logo h2 {
        font-size: 1rem;
        letter-spacing: 1px;
    }

    .logo img {
        height: 35px !important;
    }

    h1 {
        font-size: 1.3rem;
    }

    h2 {
        font-size: 1.15rem;
    }

    .container {
        padding: 10px 8px;
    }

    .card {
        padding: 1rem;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-value {
        font-size: 1.3rem;
    }

    .stat-icon {
        font-size: 2rem;
        right: 15px;
        top: 15px;
    }

    /* Smaller buttons */
    button,
    .btn,
    input[type="submit"] {
        padding: 12px 14px;
        font-size: 0.85rem;
        letter-spacing: 0.5px;
    }

    .btn-small {
        padding: 8px 10px;
        font-size: 0.75rem;
    }

    /* Table cells */
    th,
    td {
        padding: 10px 12px;
        font-size: 0.8rem;
        min-width: 80px;
    }

    /* Chart smaller */
    .chart-wrapper {
        height: 200px;
    }

    /* Search hero in busca_produtos */
    .search-hero {
        padding: 25px 15px;
    }

    .search-hero h1 {
        font-size: 1.2rem;
    }

    .search-input {
        font-size: 1rem;
        padding: 12px 15px;
    }

    /* Products grid */
    .products-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .product-image-container {
        height: 160px;
    }

    .product-name {
        font-size: 1rem;
    }

    .price-value {
        font-size: 1.2rem;
    }
}

/* ===== Touch Device Improvements ===== */
@media (hover: none) and (pointer: coarse) {

    /* Larger touch targets */
    button,
    .btn,
    input[type="submit"],
    a.btn {
        min-height: 44px;
    }

    .btn-small {
        min-height: 38px;
    }

    .nav-links a {
        min-height: 48px;
    }

    /* Remove hover effects on touch */
    .card:hover {
        transform: none;
    }

    .product-card:hover {
        transform: none;
        box-shadow: var(--shadow);
    }

    .product-card:hover .product-image {
        transform: none;
    }

    tr:hover td {
        background-color: transparent;
    }
}

/* ===== Landscape Mobile ===== */
@media screen and (max-width: 768px) and (orientation: landscape) {
    .nav-links {
        height: calc(100vh - 60px);
        top: 60px;
    }

    .chart-wrapper {
        height: 200px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Print Styles ===== */
@media print {

    .navbar,
    .hamburger,
    .nav-overlay,
    .btn,
    button {
        display: none !important;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    body {
        background: #fff;
        color: #000;
    }
}

/* ===== Alerts ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(46, 125, 50, 0.2);
    border: 1px solid #4caf50;
    color: #81c784;
}

.alert-error {
    background: rgba(198, 40, 40, 0.2);
    border: 1px solid #ef5350;
    color: #ef9a9a;
}

.alert-warning {
    background: rgba(255, 152, 0, 0.2);
    border: 1px solid #ff9800;
    color: #ffcc80;
}

.alert i {
    font-size: 1.25rem;
}

/* Text Utilities */
.text-warning {
    color: #ffc107;
}

.text-success {
    color: #4caf50;
}

.text-muted {
    color: var(--text-muted);
}

/* ===== High Contrast Mode - Mobile Specific ===== */
@media screen and (max-width: 768px) {

    /* Hamburger in High Contrast */
    body.high-contrast .hamburger span {
        background-color: #d10074 !important;
    }

    /* Nav Links in High Contrast */
    body.high-contrast .nav-links {
        background-color: #ffffff !important;
        border-right: 2px solid #d10074 !important;
    }

    body.high-contrast .nav-links a {
        color: #333333 !important;
        border-bottom: 1px solid #cccccc !important;
    }

    body.high-contrast .nav-links a:hover {
        background-color: rgba(209, 0, 116, 0.1) !important;
        color: #d10074 !important;
    }

    /* Navbar in High Contrast */
    body.high-contrast .navbar {
        background-color: #ffffff !important;
        border-bottom: 2px solid #d10074 !important;
    }

    /* Overlay in High Contrast */
    body.high-contrast .nav-overlay {
        background: rgba(0, 0, 0, 0.5) !important;
    }

    /* Toggle Button in High Contrast */
    body.high-contrast .btn-toggle {
        border-color: #333 !important;
        color: #333 !important;
    }

    body.high-contrast .btn-toggle:hover {
        border-color: #d10074 !important;
        color: #d10074 !important;
    }
}