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

:root {
    /* Cores principais - Dark Mode Blue */
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --blue-accent: #4fc3f7;
    --blue-light: #81d4fa;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --glass-bg: rgba(79, 195, 247, 0.1);
    --glass-border: rgba(79, 195, 247, 0.2);
    
    /* Sombras */
    --shadow-light: 0 8px 32px rgba(31, 38, 135, 0.37);
    --shadow-medium: 0 15px 35px rgba(31, 38, 135, 0.5);
    --shadow-heavy: 0 20px 40px rgba(31, 38, 135, 0.6);
    
    /* Transições */
    --transition-fast: 0.2s ease-in-out;
    --transition-medium: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Espaçamentos */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ===== TEMA ESCURO ===== */
body.dark-theme {
    --primary-color: #0d1421;
    --secondary-color: #1a1a2e;
    --accent-color: #16213e;
    --blue-accent: #29b6f6;
    --blue-light: #4fc3f7;
    --glass-bg: rgba(41, 182, 246, 0.08);
    --glass-border: rgba(41, 182, 246, 0.15);
}

/* ===== ESTILOS GLOBAIS ===== */
body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* ===== BACKGROUND GRADIENT ===== */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
    z-index: -1;
}

.background-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(79, 195, 247, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(129, 212, 250, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(41, 182, 246, 0.08) 0%, transparent 50%);
    animation: gradientShift 10s ease-in-out infinite alternate;
}

@keyframes gradientShift {
    0% { opacity: 0.8; }
    100% { opacity: 1; }
}

/* ===== CONTAINER PRINCIPAL ===== */
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* ===== HEADER DO PERFIL ===== */
.profile-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-light);
    animation: fadeInUp 0.8s ease-out;
}

.profile-image {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--glass-border);
    box-shadow: var(--shadow-medium);
    transition: transform var(--transition-medium);
}

.profile-image:hover {
    transform: scale(1.05);
}

.profile-image i {
    font-size: 2.5rem;
    color: var(--text-primary);
}

.profile-name {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, var(--blue-light) 0%, var(--blue-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-bio {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ===== CONTAINER DE LINKS ===== */
.links-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* ===== TÍTULOS DE SEÇÃO ===== */
.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0 var(--spacing-md);
    padding: 0 var(--spacing-sm);
}

.section-title i {
    font-size: 1.2rem;
    color: var(--blue-accent);
}

.section-title h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== CARDS DE LINK ===== */
.link-card {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-light);
    cursor: pointer;
    transition: all var(--transition-medium);
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.link-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
}

.link-card:hover::before {
    left: 100%;
}

.link-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: rgba(255, 255, 255, 0.3);
}

.link-card:active {
    transform: translateY(0);
}

/* ===== ÍCONES DOS LINKS ===== */
.link-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    margin-right: var(--spacing-md);
    flex-shrink: 0;
    transition: all var(--transition-medium);
}

.link-card:hover .link-icon {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.link-icon i {
    font-size: 1.3rem;
    color: var(--text-primary);
}

/* Cores específicas para diferentes categorias */
.link-card[data-category="article"] .link-icon {
    background: rgba(79, 195, 247, 0.15);
}

.link-card[data-category="academic"] .link-icon {
    background: rgba(41, 182, 246, 0.15);
}

.link-card[data-category="contact"] .link-icon {
    background: rgba(129, 212, 250, 0.15);
}

/* ===== CONTEÚDO DOS LINKS ===== */
.link-content {
    flex: 1;
    min-width: 0;
}

.link-content h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--text-primary);
    line-height: 1.4;
}

.link-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ===== SETA DOS LINKS ===== */
.link-arrow {
    margin-left: var(--spacing-sm);
    opacity: 0.7;
    transition: all var(--transition-medium);
}

.link-card:hover .link-arrow {
    opacity: 1;
    transform: translateX(4px);
}

.link-arrow i {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== FOOTER ===== */
.profile-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-light);
}

.profile-footer p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* ===== BOTÃO DE TEMA ===== */
.theme-toggle {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

.theme-toggle i {
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: transform var(--transition-medium);
}

.theme-toggle:hover i {
    transform: rotate(15deg);
}

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

.link-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.link-card:nth-child(1) { animation-delay: 0.1s; }
.link-card:nth-child(2) { animation-delay: 0.2s; }
.link-card:nth-child(3) { animation-delay: 0.3s; }
.link-card:nth-child(4) { animation-delay: 0.4s; }
.link-card:nth-child(5) { animation-delay: 0.5s; }
.link-card:nth-child(6) { animation-delay: 0.6s; }
.link-card:nth-child(7) { animation-delay: 0.7s; }
.link-card:nth-child(8) { animation-delay: 0.8s; }

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
        max-width: 100%;
    }
    
    .profile-header {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    
    .profile-name {
        font-size: 1.8rem;
    }
    
    .profile-image {
        width: 80px;
        height: 80px;
        margin-bottom: var(--spacing-sm);
    }
    
    .profile-image i {
        font-size: 2rem;
    }
    
    .link-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .link-icon {
        width: 45px;
        height: 45px;
        margin-right: var(--spacing-sm);
    }
    
    .link-icon i {
        font-size: 1.1rem;
    }
    
    .link-content h3 {
        font-size: 0.95rem;
    }
    
    .link-content p {
        font-size: 0.8rem;
    }
    
    .section-title {
        margin: var(--spacing-md) 0 var(--spacing-sm);
    }
    
    .section-title h2 {
        font-size: 1rem;
    }
    
    .theme-toggle {
        width: 45px;
        height: 45px;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
    
    .theme-toggle i {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 12px;
    }
    
    .profile-header {
        padding: var(--spacing-sm);
    }
    
    .profile-name {
        font-size: 1.6rem;
    }
    
    .profile-bio {
        font-size: 0.9rem;
    }
    
    .link-card {
        padding: var(--spacing-sm);
    }
    
    .link-content h3 {
        font-size: 0.9rem;
        line-height: 1.3;
    }
    
    .link-content p {
        font-size: 0.75rem;
    }
}

/* ===== ACESSIBILIDADE ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== ESTADOS DE FOCO ===== */
.link-card:focus,
.theme-toggle:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ===== LOADING STATE ===== */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading .link-card {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}