:root {
    --bg-color: #FFFFFF;
    --text-color: #000000;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.15);
    --accent-color: #000000;
    --accent-invert: #FFFFFF;
}
.dark {
    --bg-color: #0A0A0A;
    --text-color: #FFFFFF;
    --glass-bg: rgba(28, 28, 30, 0.4);
    --border-color: rgba(255, 255, 255, 0.05);
    --shadow-color: rgba(0, 0, 0, 0.6);
    --accent-color: #FFFFFF;
    --accent-invert: #000000;
}
body {
    background-color: var(--bg-color) !important;
    color: var(--text-color) !important;
    transition: background-color 0.5s ease, color 0.5s ease;
    font-family: 'Arimo', sans-serif;
    overflow-x: hidden;
}
section, header, footer {
    background-color: transparent !important;
}
.text-accent {
    color: var(--text-color) !important;
    font-weight: 700;
}
.bg-accent {
    background-color: var(--text-color) !important;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.5s ease;
}
.glass-panel:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow-color);
    border-color: var(--text-color);
}

.btn-primary {
    background-color: var(--text-color) !important;
    color: var(--bg-color) !important;
    border: 1px solid var(--text-color);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px var(--shadow-color);
}
.btn-primary:hover {
    background-color: var(--bg-color) !important;
    color: var(--text-color) !important;
    box-shadow: 0 8px 30px var(--shadow-color);
}
.btn-secondary {
    background-color: transparent !important;
    color: var(--text-color) !important;
    border: 1px solid var(--text-color) !important;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px var(--shadow-color);
}
.btn-secondary:hover {
    background-color: var(--text-color) !important;
    color: var(--bg-color) !important;
}

/* Fade Up Animation */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Marquee Styles */
.marquee-container {
    overflow: hidden;
    white-space: nowrap;
    display: flex;
    width: 100vw;
    margin-left: -50vw;
    left: 50%;
    position: relative;
}
.marquee-track {
    display: flex;
    gap: 2rem;
    padding: 2rem 0;
    will-change: transform;
    transform: translateZ(0);
}

/* Portfolio Row 1 & 3: Left */
.marquee-left {
    animation: scroll-left 40s linear infinite;
}
/* Portfolio Row 2: Right */
.marquee-right {
    animation: scroll-right 40s linear infinite;
}
/* Clients: Left (faster) */
.marquee-clients {
    animation: scroll-left 25s linear infinite;
}

/* Hover image enlarge */
.portfolio-item {
    width: 280px;
    height: 180px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(100%);
    border: 1px solid var(--border-color);
}
.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.portfolio-item:hover {
    transform: scale(1.15);
    z-index: 20;
    filter: grayscale(0%);
    box-shadow: 0 30px 60px var(--shadow-color);
    border-color: var(--text-color);
}
@media (min-width: 768px) {
    .portfolio-item {
        width: 400px;
        height: 250px;
    }
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 50px;
    border: 1px solid var(--border-color);
    opacity: 0.5;
    transition: all 0.4s ease;
    height: 160px;
    min-width: 250px;
    background: transparent;
}
.client-logo img {
    max-height: 90px;
    max-width: 160px;
    object-fit: contain;
    filter: grayscale(100%) brightness(0);
    transition: filter 0.4s ease, transform 0.4s ease;
}
.dark .client-logo img {
    filter: grayscale(100%) brightness(0) invert(1);
}
.client-logo:hover {
    opacity: 1;
    border-color: var(--text-color);
}
.client-logo:hover img {
    transform: scale(1.1);
}

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); } 
}
@keyframes scroll-right {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* Custom Cursor Styles */
@media (pointer: fine) {
    body, * { cursor: none !important; }
}
.cursor-dot, .cursor-circle {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 999999;
    border-radius: 50%;
    transform: translate3d(-50%, -50%, 0);
}
@media (pointer: coarse) {
    .cursor-dot, .cursor-circle { display: none !important; }
}
.cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--text-color);
    transition: opacity 0.2s ease;
}
.cursor-circle {
    width: 40px;
    height: 40px;
    border: 1px solid var(--text-color);
    transition: width 0.3s ease, height 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, opacity 0.2s ease;
    opacity: 0.8;
}
.cursor-circle.hovered {
    width: 60px;
    height: 60px;
    background-color: var(--text-color);
    opacity: 0.15;
    border-color: transparent;
    backdrop-filter: blur(2px);
}
.cursor-dot.hovered {
    opacity: 0;
}

/* Ambient Background Blobs */
.ambient-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}
.blob {
    position: absolute;
    border-radius: 50%;
    animation: float-blob 25s infinite alternate ease-in-out;
    will-change: transform;
}
/* Light mode blobs */
.blob-1 {
    width: 65vw;
    height: 65vw;
    background: radial-gradient(circle at center, rgba(0,0,0,0.12) 0%, rgba(0,0,0,0) 65%);
    top: -20%;
    left: -20%;
    animation-delay: 0s;
}
.blob-2 {
    width: 75vw;
    height: 75vw;
    background: radial-gradient(circle at center, rgba(0,0,0,0.08) 0%, rgba(0,0,0,0) 65%);
    bottom: -30%;
    right: -20%;
    animation-duration: 35s;
    animation-delay: -5s;
}
.blob-3 {
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle at center, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0) 65%);
    top: 20%;
    left: 30%;
    animation-duration: 40s;
    animation-delay: -10s;
}

/* Dark mode blobs */
.dark .blob-1 { background: radial-gradient(circle at center, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0) 65%); }
.dark .blob-2 { background: radial-gradient(circle at center, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 65%); }
.dark .blob-3 { background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 65%); }

@keyframes float-blob {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(10%, 15%) scale(1.1); }
    66% { transform: translate(-10%, 5%) scale(0.9); }
    100% { transform: translate(15%, -10%) scale(1.05); }
}

.hide-scrollbar::-webkit-scrollbar { display: none; }
.hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* Splash Screen */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #000000;
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s ease-in-out, transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
}
#splash-screen.hidden {
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
}
.splash-logo {
    width: 400px;
    height: auto;
    animation: pulse 1.5s infinite ease-in-out;
    filter: invert(1); /* Siempre blanco contra fondo negro */
}
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}