/**
 * Heronizando - Liquid Glass Design System
 * Color palette inspired by profile photo: cyan/blue tones with glass morphism
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Color Palette - Cyan/Blue inspired by profile photo */
    --color-primary: #7ec8d9;
    --color-primary-light: #a8dde8;
    --color-primary-dark: #5ba5b5;
    --color-secondary: #4a9db0;
    --color-accent: #6dc5d4;
    
    /* Background colors */
    --color-bg-main: #f0f7f9;
    --color-bg-gradient-start: #d9eef4;
    --color-bg-gradient-end: #e8f5f8;
    
    /* Glass colors */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: rgba(126, 200, 217, 0.1);
    
    /* Text colors */
    --color-text-primary: #2c3e50;
    --color-text-secondary: #5a6c7d;
    --color-text-light: #8a9ba8;
    
    /* Status colors */
    --color-success: #4ecdc4;
    --color-warning: #f9ca24;
    --color-error: #ff6b6b;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(126, 200, 217, 0.08);
    --shadow-md: 0 4px 16px rgba(126, 200, 217, 0.12);
    --shadow-lg: 0 8px 32px rgba(126, 200, 217, 0.16);
    --shadow-xl: 0 16px 48px rgba(126, 200, 217, 0.2);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Blur */
    --blur-sm: 10px;
    --blur-md: 20px;
    --blur-lg: 40px;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* ===== ANIMATED BACKGROUND ===== */
.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 50%, var(--color-bg-main) 100%);
    animation: gradientShift 15s ease infinite;
}

.animated-background::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(126, 200, 217, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(168, 221, 232, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(109, 197, 212, 0.08) 0%, transparent 50%);
    animation: floatingBlobs 20s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 50%, var(--color-bg-main) 100%);
    }
    50% {
        background: linear-gradient(135deg, var(--color-bg-main) 0%, var(--color-bg-gradient-start) 50%, var(--color-bg-gradient-end) 100%);
    }
}

@keyframes floatingBlobs {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

/* ===== LIQUID GLASS CARD ===== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 255, 255, 0.6);
}

.glass-card-sm {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.glass-card-lg {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
}

/* ===== TYPOGRAPHY ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 600;
}

p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-text-secondary);
    line-height: 1.75;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-sm));
    color: var(--color-text-primary);
    border: 1px solid var(--glass-border);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--color-primary);
    color: white;
}

/* ===== HEADER / NAVIGATION ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    box-shadow: var(--shadow-sm);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    list-style: none;
}

.nav-links a {
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.nav-links a:hover {
    color: var(--color-primary);
}

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

/* ===== MAIN CONTAINER ===== */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    padding-top: 100px;
}

/* ===== SECTION STYLES ===== */
section {
    margin-bottom: var(--spacing-2xl);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.hero-content {
    max-width: 800px;
}

.hero-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    border: 4px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
    object-fit: cover;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== GRID SYSTEM ===== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.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));
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio-filters {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: 500;
    color: var(--color-text-primary);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(126, 200, 217, 0.95), transparent);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay h3 {
    color: white;
    margin-bottom: var(--spacing-xs);
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

/* ===== SOCIAL LINKS ===== */
.social-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-sm));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 600;
    transition: all var(--transition-base);
}

.social-link:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.4);
}

.social-icon {
    width: 24px;
    height: 24px;
}

/* ===== FOOTER ===== */
footer {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    color: var(--color-text-light);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        min-height: 80vh;
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

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

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

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.hidden {
    display: none;
}

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

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