/* ================================================
   Felipi Fernandes - Personal Portfolio
   Design System & Custom Styles
   ================================================ */

/* ================================================
   Design System - Color Variables
   Base: #c8c5bc (warm beige/gray)
   ================================================ */

:root {
    /* Warm Neutral Palette */
    --warm-50:  #faf9f7;  /* Branco quente (background claro) */
    --warm-100: #f7f6f4;  /* Branco quente */
    --warm-200: #eae8e4;  /* Cinza muito claro quente */
    --warm-300: #dddad4;  /* Cinza claro quente */
    --warm-400: #c8c5bc;  /* COR BASE */
    --warm-500: #b0aca2;  /* Cinza médio quente */
    --warm-600: #8f8b81;  /* Cinza quente */
    --warm-700: #6b6860;  /* Cinza escuro quente */
    --warm-800: #4a4843;  /* Quase preto quente */
    --warm-900: #2a2825;  /* Preto quente */
    --warm-950: #1a1917;  /* Preto profundo quente */
    
    /* Semantic Colors */
    --color-background: var(--warm-50);
    --color-surface: var(--warm-100);
    --color-border: var(--warm-300);
    --color-text-primary: var(--warm-900);
    --color-text-secondary: var(--warm-600);
    --color-text-muted: var(--warm-500);
    --color-accent: var(--warm-400);
}

/* Screen Reader Only - Accessibility */
.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;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Fix para artefatos de renderização do AOS */
[data-aos] {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Custom Selection - Warm */
::selection {
    background-color: rgba(200, 197, 188, 0.4);
    color: var(--warm-900);
}

/* Body base styles */
body {
    overflow-x: hidden;
    background-color: var(--warm-50);
    color: var(--warm-900);
}

/* ================================================
   Navbar Styles
   ================================================ */

nav {
    transition: all 0.3s ease;
}

nav.scrolled {
    box-shadow: 0 1px 3px rgba(42, 40, 37, 0.08);
}

/* ================================================
   Hero Section
   ================================================ */

.hero-gradient {
    background: linear-gradient(180deg, rgba(250, 249, 247, 0) 0%, rgba(250, 249, 247, 1) 100%);
}

/* ================================================
   Project Cards
   ================================================ */

.project-card {
    transform: translateY(0);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
    transform: translateY(-4px);
}

/* Card Tags */
.project-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.project-tag.tag-javascript {
    background-color: #fef3c7;
    color: #92400e;
}

.project-tag.tag-html {
    background-color: #fee2e2;
    color: #991b1b;
}

.project-tag.tag-css {
    background-color: #dbeafe;
    color: #1e40af;
}

.project-tag.tag-frontend {
    background-color: #d1fae5;
    color: #065f46;
}

.project-tag.tag-standalone {
    background-color: #e0e7ff;
    color: #3730a3;
}

.project-tag.tag-bootstrap {
    background-color: #ede9fe;
    color: #7c3aed;
}

.project-tag.tag-backend {
    background-color: #ede9fe;
    color: #5b21b6;
}

.project-tag.tag-ia,
.project-tag.tag-ai {
    background-color: #fce7f3;
    color: #9d174d;
}

.project-tag.tag-api {
    background-color: #cffafe;
    color: #0e7490;
}

.project-tag.tag-tool,
.project-tag.tag-ferramenta {
    background-color: #f3f4f6;
    color: #374151;
}

.project-tag.tag-default {
    background-color: #f3f4f6;
    color: #6b7280;
}

/* ================================================
   Buttons
   ================================================ */

.btn-primary {
    background-color: #111827;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: #1f2937;
}

.btn-secondary {
    background-color: #f3f4f6;
    color: #374151;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background-color: #e5e7eb;
}

/* ================================================
   Animations
   ================================================ */

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Stagger animation for cards */
.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

/* ================================================
   Loading State
   ================================================ */

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ================================================
   Footer
   ================================================ */

footer {
    background-color: var(--warm-950);
    position: relative;
    overflow: hidden;
    isolation: isolate; /* Previne artefatos de renderização */
}

footer * {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Remove qualquer efeito de overflow de animações anteriores */
footer::before,
footer::after {
    display: none !important;
}

/* ================================================
   Responsive Adjustments
   ================================================ */

@media (max-width: 640px) {
    .project-card {
        padding: 1.25rem;
    }
    
    .project-card .flex-wrap.gap-2 {
        flex-direction: column;
    }
    
    .project-card .flex-wrap.gap-2 > a {
        width: 100%;
        justify-content: center;
    }
}

/* ================================================
   Print Styles
   ================================================ */

@media print {
    nav,
    footer,
    .animate-bounce {
        display: none !important;
    }
    
    body {
        background: white !important;
    }
    
    .project-card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #e5e7eb !important;
    }
}