/* Beleza & Estilo - Main Styles */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@100;200;300;400;500;600;700;800&display=swap');

/* CSS Variables - Design System */
:root {
    /* Colors - Premium Palette */
    --primary-50: #fdf2f8;
    --primary-100: #fce7f3;
    --primary-200: #fbcfe8;
    --primary-300: #f9a8d4;
    --primary-400: #f472b6;
    --primary-500: #ec4899;
    --primary-600: #db2777;
    --primary-700: #be185d;
    --primary-800: #9d174d;
    --primary-900: #831843;
    
    --secondary-50: #fff7ed;
    --secondary-100: #ffedd5;
    --secondary-200: #fed7aa;
    --secondary-300: #fdba74;
    --secondary-400: #fb923c;
    --secondary-500: #f97316;
    --secondary-600: #ea580c;
    --secondary-700: #c2410c;
    --secondary-800: #9a3412;
    --secondary-900: #7c2d12;
    
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    
    --success-50: #f0fdf4;
    --success-500: #10b981;
    --warning-50: #fffbeb;
    --warning-500: #f59e0b;
    --error-50: #fef2f2;
    --error-500: #ef4444;
    
    /* Typography */
    --font-primary: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing System (8px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    line-height: 1.6;
}

body {
    font-family: var(--font-primary);
    color: var(--neutral-800);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--neutral-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.025em;
}

h1 { 
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
}

h2 { 
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
}

h3 { 
    font-size: clamp(1.25rem, 3vw, 1.875rem);
    font-weight: 600;
}

h4 { 
    font-size: 1.25rem;
    font-weight: 500;
}

h5 { 
    font-size: 1.125rem;
    font-weight: 500;
}

h6 { 
    font-size: 1rem;
    font-weight: 500;
}

p {
    margin-bottom: var(--space-4);
    color: var(--neutral-700);
    line-height: 1.7;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--primary-700);
}

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.75rem;
    color: white;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #ffffff20, #ffffff40);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo:hover {
    transform: scale(1.05);
}

.logo:hover .logo-icon {
    background: linear-gradient(135deg, #ffffff30, #ffffff50);
    transform: rotate(5deg);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: all var(--transition-normal);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    opacity: 0.95;
    z-index: -1;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

/* Navigation Styles */
.nav {
    display: flex;
    gap: var(--space-2);
}

.nav-item {
    padding: var(--space-3) var(--space-6);
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.nav-item::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);
}

.nav-item:hover::before {
    left: 100%;
}

.nav-item:hover,
.nav-item.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.25);
    font-weight: 600;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-700), var(--primary-800));
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-6);
    gap: var(--space-4);
    flex-direction: column;
    animation: slideDown var(--transition-normal);
}

.mobile-nav.active {
    display: flex;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    padding: var(--space-20) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

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

.hero h1 {
    color: white;
    margin-bottom: var(--space-6);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    background: rgba(255, 255, 255, 0.15);
    color: white;
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.hero-cta:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Main Content */
.main-content {
    padding: var(--space-20) 0;
    background: white;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    gap: var(--space-8);
}

.article-card {
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid var(--neutral-100);
    position: relative;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.article-card:hover::before {
    transform: scaleX(1);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.article-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.article-content {
    padding: var(--space-8);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    font-size: 0.875rem;
    color: var(--neutral-500);
}

.article-category {
    background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
    color: var(--primary-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.8rem;
}

.article-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--neutral-900);
    margin-bottom: var(--space-3);
    line-height: 1.3;
}

.article-excerpt {
    color: var(--neutral-600);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--primary-600);
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
}

.read-more::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-600);
    transition: width var(--transition-normal);
}

.read-more:hover::after {
    width: 100%;
}

.read-more:hover {
    color: var(--primary-700);
    transform: translateX(4px);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.sidebar-section {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--neutral-100);
}

.sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--neutral-900);
    margin-bottom: var(--space-6);
    position: relative;
    padding-bottom: var(--space-3);
}

.sidebar-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
    border-radius: var(--radius-full);
}

.trending-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
}

.trending-item:hover {
    background: var(--neutral-50);
    border-color: var(--primary-200);
    transform: translateX(4px);
}

.trending-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.trending-content h4 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--neutral-800);
    margin-bottom: var(--space-1);
    line-height: 1.4;
}

.trending-meta {
    font-size: 0.8rem;
    color: var(--neutral-500);
}

/* Newsletter Signup */
.newsletter-signup {
    background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
    border: 1px solid var(--primary-200);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.form-input {
    padding: var(--space-4);
    border: 2px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    padding: var(--space-4) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Footer */
.footer {
    background: var(--neutral-900);
    color: var(--neutral-300);
    padding: var(--space-20) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-section h3 {
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--primary-400), var(--secondary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    color: var(--neutral-400);
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--space-2) 0;
}

.footer-links a:hover {
    color: var(--primary-400);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid var(--neutral-800);
    padding-top: var(--space-8);
    text-align: center;
    color: var(--neutral-500);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .sidebar {
        grid-row: 1;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: var(--space-16) 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .main-content {
        padding: var(--space-16) 0;
    }
    
    .article-content {
        padding: var(--space-6);
    }
    
    .sidebar-section {
        padding: var(--space-6);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-8);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .header-content {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    
    .hero {
        padding: var(--space-12) 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .main-content {
        padding: var(--space-12) 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .article-image {
        height: 200px;
    }
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none; }
.visible { display: block; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Print Styles */
@media print {
    .header,
    .sidebar,
    .footer {
        display: none;
    }
    
    .main-content {
        padding: 0;
    }
    
    .article-card {
        box-shadow: none;
        border: 1px solid var(--neutral-300);
        break-inside: avoid;
    }
}