/* ===== RESET E VARIÁVEIS ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de cores única */
    --primary-gradient: linear-gradient(135deg, #4B0082 0%, #00CED1 100%);
    --primary-dark: #4B0082;
    --primary-light: #00CED1;
    --accent-color: #FF6347;
    --accent-hover: #FF7F5B;
    --secondary-bg: #F5DEB3;
    --text-dark: #2F4F4F;
    --text-light: #FFFFFF;
    --text-muted: #6B7280;
    
    /* Tipografia */
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Espaçamentos */
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --element-spacing: 2rem;
    
    /* Transições */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Sombras */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--primary-gradient);
    min-height: 100vh;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* ===== ANIMAÇÕES CSS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Classes de animação */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out forwards;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out forwards;
}

/* ===== COOKIE BANNER ===== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--text-dark);
    color: var(--text-light);
    padding: 1rem;
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-strong);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    gap: 1rem;
}

.cookie-content p {
    flex: 1;
    margin: 0;
    font-size: 0.9rem;
}

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

.cookie-content a:hover {
    text-decoration: underline;
}

.cookie-accept-btn {
    background: var(--accent-color);
    color: var(--text-light);
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.cookie-accept-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* ===== HEADER E NAVEGAÇÃO ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-dark);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.logo:hover {
    color: var(--accent-color);
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    position: relative;
    transition: all var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-fast);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* ===== SECÇÕES GERAIS ===== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== HERO SECTION ===== */
.hero {
    background: var(--primary-gradient);
    color: var(--text-light);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('./img/Knu341.jpg') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-cta {
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* ===== BOTÕES ===== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--text-light);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--text-light);
    transform: translateY(-3px);
}

/* ===== CARDS ===== */
.card {
    background: var(--text-light);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
    height: 100%;
    border: 1px solid rgba(0, 206, 209, 0.1);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.card-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.card-description {
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== GRID LAYOUTS ===== */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===== FORMULÁRIO ===== */
.form-container {
    background: var(--text-light);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-medium);
    max-width: 600px;
    margin: 0 auto;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
}

.form-input,
.form-select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #E5E5E5;
    border-radius: 10px;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: #FAFAFA;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--text-light);
    box-shadow: 0 0 0 3px rgba(255, 99, 71, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.25rem;
    transform: scale(1.2);
    accent-color: var(--accent-color);
}

.checkbox-label {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-muted);
}

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

.checkbox-label a:hover {
    text-decoration: underline;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--text-dark);
    color: var(--text-light);
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-title {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.footer-subtitle {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.footer-description {
    color: #B0B0B0;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #B0B0B0;
}

.contact-icon {
    font-size: 1.2rem;
    width: 1.5rem;
    text-align: center;
}

.contact-item a {
    color: #B0B0B0;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--accent-color);
}

.legal-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.legal-link {
    color: #B0B0B0;
    text-decoration: none;
    transition: all var(--transition-fast);
    padding: 0.25rem 0;
}

.legal-link:hover {
    color: var(--accent-color);
    padding-left: 0.5rem;
}

.footer-bottom {
    margin-top: 3rem;
}

.footer-divider {
    height: 1px;
    background: #404040;
    margin-bottom: 2rem;
}

.footer-bottom-content {
    text-align: center;
    color: #808080;
}

.copyright {
    margin-bottom: 0.5rem;
}

.developed-by {
    font-size: 0.9rem;
    font-style: italic;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--text-light);
        transition: left var(--transition-normal);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form-container {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-info,
    .legal-links {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .form-container {
        padding: 1.5rem 1rem;
    }
}

/* ===== UTILITÁRIOS ===== */
.text-center {
    text-align: center;
}

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

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.hidden {
    display: none;
}

.visible {
    display: block;
}

/* ===== EFEITOS ESPECIAIS ===== */
.glow {
    animation: pulse 2s ease-in-out infinite;
}

.shine {
    position: relative;
    overflow: hidden;
}

.shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.8s ease-in-out;
}

.shine:hover::after {
    left: 100%;
}