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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    height: 100vh;
    overflow: hidden;
    background: var(--bg-primary);
    display: grid;
    grid-template-columns: auto 360px auto;
    grid-template-rows: auto 1fr auto;
    grid-template-areas: 
        "header-left header-center header-right"
        "main-left main-center main-right"
        "footer-left footer-center footer-right";
    color: var(--text-primary);
}

/* Header Styles */
.header-left, .header-right {
    background: var(--bg-primary);
}

.header-left { grid-area: header-left; }
.header-right { grid-area: header-right; }

.header-center {
    grid-area: header-center;
    background: var(--main-gradient);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    height: 50px;
    box-shadow: var(--shadow-main);
    z-index: 1000;
    position: relative;
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-on-main);
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: var(--transition-normal);
}

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

.header-buttons {
    display: flex;
    gap: 12px;
}

.btn-header {
    padding: 5px 10px;
    border: 2px solid var(--white-transparent-30);
    background: var(--white-transparent-10);
    color: var(--text-on-main);
    border-radius: 25px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.btn-header:hover {
    background: var(--surface);
    color: var(--main-dark);
    border-color: var(--surface);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Main Content Styles */
.main-left, .main-right {
    background: var(--bg-primary);
}

.main-left { grid-area: main-left; }
.main-right { grid-area: main-right; }

.main-center {
    grid-area: main-center;
    background: var(--surface-elevated);
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 8px;
}

.main-center::-webkit-scrollbar {
    display: none;
    width: 0;
}

/* Footer Styles */
.footer-left, .footer-right {
    background: var(--bg-primary);
}

.footer-left { grid-area: footer-left; }
.footer-right { grid-area: footer-right; }

.footer-center {
    grid-area: footer-center;
    background: var(--main-gradient);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 6px 10px;
    height: 50px;
    box-shadow: var(--shadow-main);
    z-index: 1000;
    position: relative;
}

.footer-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--white-transparent-70);
    text-decoration: none;
    transition: var(--transition-normal);
    padding: 4px 6px;
    border-radius: 12px;
    position: relative;
}

.footer-item:hover {
    color: var(--accent-gold);
    background: var(--white-transparent-10);
    transform: translateY(-2px);
}

.footer-item.active {
    color: var(--surface);
    background: var(--white-transparent-20);
}

.footer-item i {
    font-size: 16px;
}

.footer-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    filter: brightness(0.8);
    transition: var(--transition-normal);
}

.footer-item:hover .footer-icon {
    filter: brightness(1.2);
    transform: scale(1.1);
}

.footer-item.active .footer-icon {
    filter: brightness(1);
}

/* Form Styles */
.login-form,
.register-form,
.reset-form {
    padding: var(--padding-sm);
}

.form-group {
    margin-bottom: var(--margin-md);
}

.form-label {
    display: block;
    margin-bottom: var(--margin-xs);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    border-radius: var(--border-radius-md);
    padding: var(--padding-sm);
    border: 1px solid var(--main-transparent-20);
    background: var(--surface-elevated);
    transition: var(--transition-normal);
    width: 100%;
    color: var(--text-primary);
}

.form-control::placeholder {
    color: var(--text-light);
    opacity: 0.7;
}

.form-control:focus {
    border-color: var(--main-light);
    box-shadow: 0 0 0 3px var(--main-transparent-20);
    outline: none;
}

.form-check-input {
    margin-right: var(--margin-sm);
    accent-color: var(--main-solid);
}

.btn-login,
.btn-register,
.btn-reset {
    background: var(--main-gradient);
    color: var(--text-on-main);
    border: none;
    border-radius: var(--border-radius-md);
    padding: var(--padding-sm);
    font-weight: 600;
    width: 100%;
    transition: var(--transition-normal);
    cursor: pointer;
}

.btn-login:hover,
.btn-register:hover,
.btn-reset:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-on-main);
}

.login-links,
.register-links,
.reset-links {
    text-align: center;
    margin-top: var(--margin-md);
}

.login-links a,
.register-links a,
.reset-links a {
    color: var(--main-solid);
    text-decoration: none;
    transition: var(--transition-normal);
    font-size: 14px;
}

.login-links a:hover,
.register-links a:hover,
.reset-links a:hover {
    color: var(--main-dark);
    text-decoration: underline;
}

.form-check-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.form-check {
    margin-bottom: var(--margin-sm);
    display: flex;
    align-items: center;
}

.text-muted {
    font-size: 13px;
    margin-bottom: var(--margin-md) !important;
    color: var(--text-light);
}

/* Success Message Styles */
.success-message {
    text-align: center;
    padding: var(--padding-xl);
}

.success-icon {
    font-size: 48px;
    color: var(--accent-success);
    margin-bottom: var(--margin-xl);
}

.success-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--margin-md);
    color: var(--text-primary);
}

.success-text {
    color: var(--text-secondary);
    margin-bottom: var(--margin-xl);
    line-height: 1.5;
}

.btn-back {
    background: var(--main-gradient);
    color: var(--text-on-main);
    border: none;
    border-radius: var(--border-radius-md);
    padding: var(--padding-sm) var(--padding-lg);
    font-weight: 600;
    transition: var(--transition-normal);
    text-decoration: none;
    display: inline-block;
    margin-top: var(--margin-md);
}

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-on-main);
}

/* Terms and Privacy Styles */
.terms-content {
    padding: var(--padding-md);
}

.terms-content h3 {
    font-size: 18px;
    margin-bottom: var(--margin-md);
    color: var(--text-primary);
}

.terms-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--margin-md);
    line-height: 1.6;
}

.terms-content ul {
    margin-bottom: var(--margin-md);
    padding-left: var(--padding-xl);
}

.terms-content li {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--margin-sm);
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animated-in {
    opacity: 1;
    transform: translateY(0);
}

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

/* Estilos para Modal de Temas */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--surface-elevated);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 360px;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.3s ease;
    overflow: hidden;
}

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

.modal-header {
    background: var(--main-gradient);
    color: var(--text-on-main);
    padding: var(--padding-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--accent-gold);
    transform: scale(1.1);
}

.modal-body {
    padding: var(--padding-lg);
}

/* Opções de Tema */
.theme-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-md);
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-normal);
    padding: var(--padding-sm);
    border-radius: var(--border-radius-md);
}

.theme-option:hover {
    background: var(--main-transparent-10);
    transform: translateY(-3px);
}

.theme-preview {
    width: 100%;
    height: 80px;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--margin-sm);
    border: 2px solid var(--main-transparent-20);
    transition: var(--transition-normal);
}

.theme-option:hover .theme-preview {
    border-color: var(--main-solid);
}

.theme-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* Previews dos Temas */
.default-theme {
    background: linear-gradient(135deg, #1e293b 0%, #1e293b 100%);
    position: relative;
}

.default-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
}

.ocean-theme {
    background: linear-gradient(135deg, #082f49 0%, #0c4a6e 100%);
    position: relative;
}

.ocean-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #06b6d4 0%, #0e7490 100%);
}

.sunset-theme {
    background: linear-gradient(135deg, #431407 0%, #7c2d12 100%);
    position: relative;
}

.sunset-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

.forest-theme {
    background: linear-gradient(135deg, #14532d 0%, #166534 100%);
    position: relative;
}

.forest-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
}

/* Novos Temas */
.black-theme {
    background: linear-gradient(135deg, #000000 0%, #111111 100%);
    position: relative;
}

.black-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
}

.green-theme {
    background: linear-gradient(135deg, #052e16 0%, #064e3b 100%);
    position: relative;
}

.green-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #15803d 0%, #166534 100%);
}

.blue-theme {
    background: linear-gradient(135deg, #0c1c36 0%, #172554 100%);
    position: relative;
}

.blue-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
}

.fuchsia-theme {
    background: linear-gradient(135deg, #3b0764 0%, #4a044e 100%);
    position: relative;
}

.fuchsia-theme::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background: linear-gradient(135deg, #c026d3 0%, #a21caf 100%);
}