/* ==========================================================================
   DESIGN SYSTEM - PORTFOLIO CATALOG ("VALENTE OS" NESTED COMPONENT)
   ========================================================================== */

/* Custom Typography Import */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* Variables: Dark Mode (Default) */
:root, [data-theme="dark"] {
    --bg-main: #06080e;
    --bg-mesh-1: rgba(6, 8, 14, 0.95);
    --bg-mesh-2: rgba(15, 20, 35, 0.98);
    --bg-gradient: linear-gradient(135deg, #06080e 0%, #0f1423 50%, #17223c 100%);
    --grid-color: rgba(255, 255, 255, 0.015);
    --glass-bg: rgba(28, 22, 19, 0.42);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.16);
    --glass-shadow: 0 16px 45px -10px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
    --text-main: #f7f3f0;
    --text-muted: #93c5fd;
    --accent-color: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.35);
    --tag-bg: rgba(37, 99, 235, 0.12);
    --tag-border: rgba(37, 99, 235, 0.25);
    --tag-text: #93c5fd;
    --overlay-glass: rgba(15, 23, 42, 0.88);
}

/* Variables: Light Mode */
[data-theme="light"] {
    --bg-main: #e2d6c5;
    --bg-mesh-1: rgba(226, 214, 197, 0.9);
    --bg-mesh-2: rgba(245, 239, 235, 0.95);
    --bg-gradient: linear-gradient(135deg, #e2d6c5 0%, #f5efeb 50%, #dae3f0 100%);
    --grid-color: rgba(139, 115, 95, 0.045);
    --glass-bg: rgba(250, 246, 240, 0.28);
    --glass-border: rgba(255, 255, 255, 0.45);
    --glass-border-hover: rgba(255, 255, 255, 0.7);
    --glass-shadow: 0 12px 40px -10px rgba(85, 60, 48, 0.06), 0 0 0 1px rgba(255, 255, 255, 0.25) inset;
    --text-main: #2e221b;
    --text-muted: #c2410c;
    --accent-color: #c2410c;
    --accent-glow: rgba(194, 65, 12, 0.2);
    --tag-bg: rgba(194, 65, 12, 0.08);
    --tag-border: rgba(194, 65, 12, 0.2);
    --tag-text: #c2410c;
    --overlay-glass: rgba(250, 246, 240, 0.92);
}

/* Floating Blobs Animation */
@keyframes float-blob {
  0% { transform: translate(0px, 0px) scale(1); }
  33% { transform: translate(40px, -60px) scale(1.08); }
  66% { transform: translate(-30px, 30px) scale(0.92); }
  100% { transform: translate(0px, 0px) scale(1); }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    transition: background-color 0.4s ease, border-color 0.4s ease, color 0.4s ease, box-shadow 0.3s ease;
}

body {
    background: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    /* Subtle Quad grid background (blueprint style) */
    background-size: 36px 36px;
    background-image: 
      linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
      linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
}

/* Background Blobs Layer */
.bg-blobs {
    position: fixed;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.25;
    mix-blend-mode: normal;
    animation: float-blob 22s infinite ease-in-out;
}

.blob-1 {
    top: 10%;
    left: 5%;
    width: 35rem;
    height: 35rem;
    background-color: #eedcc6;
}

[data-theme="dark"] .blob-1 {
    background-color: #1e3a8a;
    opacity: 0.12;
}

.blob-2 {
    bottom: 10%;
    right: 5%;
    width: 40rem;
    height: 40rem;
    background-color: #dae3f0;
}

[data-theme="dark"] .blob-2 {
    background-color: #0f172a;
    opacity: 0.15;
}

/* Grain Overlay (Fine texture) */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Premium Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Header Style */
.glass-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 3rem;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.header-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-main) 30%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.glass-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-btn:hover {
    background: var(--glass-border);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

.glass-btn:active {
    transform: translateY(0px) scale(0.98);
}

/* Search Bar */
.search-container {
    position: relative;
    width: 100%;
    max-width: 440px;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: color 0.3s;
}

.glass-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border-radius: 30px;
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    outline: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

[data-theme="light"] .glass-input {
    background: rgba(255, 255, 255, 0.35);
}

.glass-input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.glass-input:focus {
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.25);
    box-shadow: 0 0 20px var(--accent-glow);
}

[data-theme="light"] .glass-input:focus {
    background: rgba(255, 255, 255, 0.55);
}

.glass-input:focus + .search-icon {
    color: var(--accent-color);
}

/* Theme Switching Icons */
[data-theme="dark"] .icon-sun { display: inline; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: inline; }

/* Grid */
main {
    padding: 3rem 4rem;
    max-width: 1540px;
    margin: 0 auto;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: 2.5rem;
}

/* Cards Layout */
.card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 380px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--glass-border);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 15px var(--accent-glow);
}

[data-theme="light"] .card:hover {
    box-shadow: 0 20px 40px -10px rgba(85, 60, 48, 0.12), 0 0 12px var(--accent-glow);
}

.card-img-container {
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    background: #000;
}

.card-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s;
}

.card:hover .card-img-container img {
    transform: scale(1.08);
    opacity: 0.7;
}

/* Bottom Title Bar (Default state) */
.card-title-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.25rem;
    background: rgba(10, 15, 30, 0.78);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    z-index: 2;
    text-align: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
    letter-spacing: -0.02em;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s;
}

[data-theme="light"] .card-title-bar {
    background: rgba(250, 246, 240, 0.85);
    color: #2e221b;
}

.card:hover .card-title-bar {
    transform: translateY(100%);
    opacity: 0;
}

/* Premium Hover Overlay (Frosted Slide-up Panel) */
.card-overlay {
    position: absolute;
    inset: 0;
    background: var(--overlay-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    text-align: center;
    opacity: 0;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s;
}

.card:hover .card-overlay {
    opacity: 1;
    transform: translateY(0);
}

.card-summary {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--text-main);
    opacity: 0.9;
}

.card-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.tech-tag {
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    color: var(--tag-text);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.btn-acessar {
    text-decoration: none;
    background: var(--accent-color);
    color: #fff;
    padding: 0.75rem 2rem;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 8px 20px -6px var(--accent-color);
    transform: translateY(15px);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] .btn-acessar {
    color: #fff !important;
}

.card:hover .btn-acessar {
    transform: translateY(0);
    opacity: 1;
}

.btn-acessar:hover {
    filter: brightness(1.15);
    box-shadow: 0 10px 25px -4px var(--accent-color);
    transform: translateY(-2px);
}

.btn-acessar:active {
    transform: translateY(0) scale(0.98);
}

/* ==========================================================================
   RESPONSIVENESS (FLUID ADJUSTMENTS)
   ========================================================================== */
@media (max-width: 1024px) {
    main {
        padding: 2rem 2rem;
    }
    .glass-header {
        padding: 1rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .glass-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        position: static;
    }
    .search-container {
        max-width: 100%;
    }
    main {
        padding: 1.5rem 1rem;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}