:root {
    /* --- TEMA DARK (Por defecto) --- */
    --bg-main: #05070a;
    --text-main: #e0e0e0;
    --text-title: #ffffff;
    --card-bg: rgba(10, 20, 30, 0.75);
    --card-border: rgba(0, 255, 0, 0.2);
    --shadow-color: rgba(0, 0, 0, 0.8);
    --tech-primary: #00ff00;
    --tech-primary-glow: rgba(0, 255, 0, 0.7);
    --tech-secondary: #ffffff;
    --glass-blur: blur(10px);
    --skill-bg: rgba(0, 255, 0, 0.1);
    --skill-border: rgba(0, 255, 0, 0.2);
    --social-bg: rgba(255, 255, 255, 0.05);
    --social-border: rgba(255, 255, 255, 0.1);
    --social-text: #ffffff;
    --matrix-fade: rgba(5, 7, 10, 0.05);
    --matrix-color: #00ff00;
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-main: #f8f9fa;
    --text-main: #212529;
    --text-title: #1a1d21;
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-border: rgba(0, 100, 0, 0.2);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --tech-primary: #1a5d1a;
    /* Darker green for readability */
    --tech-primary-glow: transparent;
    /* No glow in light mode as per rules */
    --tech-secondary: #1a1d21;
    --glass-blur: blur(5px);
    --skill-bg: rgba(0, 100, 0, 0.05);
    --skill-border: rgba(0, 100, 0, 0.15);
    --social-bg: rgba(0, 0, 0, 0.05);
    --social-border: rgba(0, 0, 0, 0.1);
    --social-text: #212529;
}

body {
    background-color: transparent !important;
    color: var(--text-main) !important;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- MATRIX BACKGROUND --- */
#matrixCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-color: #05070a;
    opacity: 0;
    animation: canvasFadeIn 3s ease forwards;
}

@keyframes canvasFadeIn {
    to {
        opacity: 1;
    }
}

/* --- TYPOGRAPHY --- */
.font-tech {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}

.text-glow {
    text-shadow: 0 0 10px var(--tech-primary-glow);
}

.text-gradient {
    background: linear-gradient(45deg, var(--tech-primary), var(--tech-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- PROFILE CARD --- */
.profile-container {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, border 0.3s ease;
    max-width: 1000px;
    width: 100%;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transition: 0.5s;
}

.glass-card:hover::before {
    left: 100%;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px var(--tech-primary-glow);
    border-color: var(--tech-primary);
}

/* --- IMAGE STYLES (HOLOGRAM) --- */
.profile-img-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
    max-width: 100%;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

@media (max-width: 576px) {
    .profile-img-wrapper {
        width: 220px;
        height: 220px;
    }
}

.hologram-container {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    z-index: 10;
    box-shadow: 0 0 50px var(--skill-border), inset 0 0 20px var(--skill-border);
    border: 1px solid var(--skill-border);
    background-color: rgba(0, 20, 40, 0.1);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: contrast(1.3) brightness(1.2) sepia(1) hue-rotate(90deg) saturate(3) blur(0.5px);
    opacity: 0.9;
    mix-blend-mode: screen;
    animation: holoFlicker 5s infinite;
    will-change: transform, opacity, filter;
    transition: opacity 0.3s ease;
}

[data-theme='light'] .profile-img {
    mix-blend-mode: multiply;
    /* Better for light backgrounds */
    filter: contrast(1.1) brightness(0.8) sepia(1) hue-rotate(90deg) saturate(2);
}

.static-profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    padding: 8%;
    background-color: var(--bg-main);
    transition: opacity 0.3s ease;
    z-index: 20;
    border-radius: 50%;
}

/* Scanlines Overlay */
.hologram-container::after {
    content: " ";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(to bottom,
            rgba(0, 0, 0, 0) 50%,
            rgba(0, 255, 0, 0.05) 50%);
    background-size: 100% 4px;
    z-index: 12;
    pointer-events: none;
}

/* Glitch/Noise Overlay */
.hologram-container::before {
    content: " ";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: rgba(0, 255, 0, 0.02);
    z-index: 13;
    opacity: 0;
    animation: glitch 4s infinite;
    pointer-events: none;
}

/* Rotating Rings (Projector Field) */
.spin-ring {
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--tech-primary);
    border-bottom-color: transparent;
    border-left-color: var(--tech-primary);
    animation: spin 8s linear infinite;
    z-index: 5;
    opacity: 0.6;
    box-shadow: 0 0 15px var(--tech-primary-glow);
}

.spin-ring-2 {
    position: absolute;
    top: -30px;
    left: -30px;
    right: -30px;
    bottom: -30px;
    border-radius: 50%;
    border: 1px dashed var(--skill-border);
    animation: spinReverse 12s linear infinite;
    z-index: 4;
}

.spin-ring-3 {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    border: 1px solid var(--social-border);
    box-shadow: 0 0 20px var(--tech-primary-glow);
    z-index: 6;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes spinReverse {
    100% {
        transform: rotate(-360deg);
    }
}

@keyframes holoFlicker {

    0%,
    100% {
        opacity: 0.9;
        transform: scale(1);
    }

    3% {
        opacity: 0.6;
        transform: translateX(2px);
    }

    6% {
        opacity: 0.9;
        transform: translateX(0);
    }

    50% {
        opacity: 0.9;
        transform: scale(1);
    }

    52% {
        opacity: 0.4;
        transform: skewX(10deg);
    }

    54% {
        opacity: 0.9;
        transform: skewX(0);
    }

    70% {
        opacity: 0.9;
        transform: scale(1);
    }

    71% {
        opacity: 0.2;
        transform: scaleY(0.05) scaleX(1.2);
    }

    72% {
        opacity: 0;
        transform: scale(0);
    }

    78% {
        opacity: 0;
        transform: scale(0);
    }

    79% {
        opacity: 0.2;
        transform: scaleY(0.05) scaleX(1.2);
    }

    80% {
        opacity: 0.9;
        transform: scale(1);
    }
}

@keyframes glitch {
    0% {
        opacity: 0;
    }

    50% {
        opacity: 0;
    }

    51% {
        opacity: 0.5;
        transform: translate(-10px, 0);
        background-color: var(--skill-bg);
    }

    52% {
        opacity: 0.5;
        transform: translate(10px, 0);
    }

    53% {
        opacity: 0;
    }

    71% {
        opacity: 0.2;
        background-color: var(--tech-secondary);
        transform: translate(0, 0);
    }

    72% {
        opacity: 0.1;
        background-color: var(--skill-bg);
    }

    78% {
        opacity: 0.1;
        background-color: var(--skill-bg);
    }

    79% {
        opacity: 0.2;
        background-color: var(--tech-secondary);
    }

    80% {
        opacity: 0;
    }
}

/* --- SKILL TAGS --- */
.skill-tag {
    background: var(--skill-bg);
    border: 1px solid var(--skill-border);
    color: var(--tech-primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin: 0.25rem;
    display: inline-block;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--tech-primary);
    color: var(--bg-main);
    box-shadow: 0 0 15px var(--tech-primary-glow);
    transform: scale(1.05);
}

/* --- CONTENT ANIMATIONS --- */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.social-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--social-bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--social-text);
    font-size: 1.5rem;
    transition: all 0.3s;
    border: 1px solid var(--social-border);
    text-decoration: none;
}

.social-btn:hover {
    background: var(--tech-primary);
    color: var(--bg-main);
    transform: translateY(-5px) rotate(10deg);
    box-shadow: 0 0 20px var(--tech-primary-glow);
}

/* --- HANDWRITING STYLES --- */
.handwriting-text {
    font-family: 'Satisfy', cursive;
    color: var(--tech-primary) !important;
    text-shadow: 0 0 5px var(--tech-primary-glow);
    transition: color 0.3s ease;
}

[data-theme='light'] .handwriting-text {
    text-shadow: none;
}

.typing-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background-color: var(--tech-primary);
    margin-left: 5px;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
    box-shadow: 0 0 5px var(--tech-primary-glow);
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

/* --- THEME TOGGLE --- */
.theme-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.theme-toggle i {
    font-size: 1.2rem;
    color: var(--tech-primary);
}

/* Protection for content-wrapper as per instructions */
[data-theme='light'] .content-wrapper .text-success {
    color: var(--tech-primary) !important;
}