/* Variables Globales y Tema Claro (Light Mode) */
:root {
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Space Grotesk', monospace;

    /* Colors Light */
    --color-primary: #0f172a;
    --color-primary-var: #0f172a;
    --color-secondary: #475569;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-accent-subtle: rgba(37, 99, 235, 0.08);
    --color-text: #334155;
    --color-text-muted: #64748b;
    
    --color-background: #ffffff;
    --color-bg-subtle: #f8fafc;
    --color-card-bg: #ffffff;
    --color-border: #e2e8f0;
    --color-code-bg: #0f172a;

    --navbar-bg: rgba(255, 255, 255, 0.85);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Tema Oscuro (Dark Mode) Override */
[data-bs-theme="dark"] {
    --color-primary: #f8fafc;
    --color-primary-var: #f8fafc;
    --color-secondary: #94a3b8;
    --color-accent: #3b82f6;
    --color-accent-hover: #60a5fa;
    --color-accent-subtle: rgba(59, 130, 246, 0.12);
    --color-text: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    --color-background: #090d16;
    --color-bg-subtle: #0f172a;
    --color-card-bg: #111827;
    --color-border: #1f2937;
    --color-code-bg: #030712;

    --navbar-bg: rgba(9, 13, 22, 0.85);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
}

/* General Styles */
body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    transition: background-color 0.3s ease, color 0.3s ease;
    scroll-behavior: smooth;
    line-height: 1.6;
}

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

.max-w-700 { max-width: 700px; }
.max-w-800 { max-width: 800px; }
.max-w-900 { max-width: 900px; }
.extra-small { font-size: 0.75rem; }

.bg-theme {
    background-color: var(--color-card-bg) !important;
}

.bg-subtle-section {
    background-color: var(--color-bg-subtle);
}

.border {
    border-color: var(--color-border) !important;
}

.text-accent {
    color: var(--color-accent) !important;
}

.bg-subtle {
    background-color: var(--color-accent-subtle);
}

.bg-accent-subtle {
    background-color: var(--color-accent-subtle);
}

.border-accent {
    border-color: var(--color-accent) !important;
}

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

/* Navbar */
.navbar {
    background-color: var(--navbar-bg);
    backdrop-filter: blur(10px);
    transition: padding 0.3s ease, background-color 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.brand-badge {
    width: 32px;
    height: 32px;
    background-color: var(--color-accent-subtle);
    color: var(--color-accent);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-link {
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent) !important;
}

.btn-theme-toggle {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-primary-var);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-theme-toggle:hover {
    background-color: var(--color-accent-subtle);
    color: var(--color-accent);
}

/* Buttons */
.btn-accent {
    background-color: var(--color-accent);
    color: #ffffff;
    border: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-outline-custom {
    border: 1px solid var(--color-border);
    color: var(--color-primary-var);
    font-weight: 600;
    background: transparent;
    transition: all 0.2s ease;
}

.btn-outline-custom:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background-color: var(--color-accent-subtle);
}

/* Hero Section */
.ai-badge {
    background-color: var(--color-accent-subtle);
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--color-border);
}

.hero-card-wrapper {
    position: relative;
}

.glass-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.status-indicator {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #10b981;
}

.code-preview {
    background-color: var(--color-code-bg);
    color: #f8fafc;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
    overflow-x: auto;
}

.token-keyword { color: #f43f5e; }
.token-variable { color: #38bdf8; }
.token-property { color: #fbbf24; }
.token-string { color: #34d399; }

.bg-card-subtle {
    background-color: var(--color-bg-subtle);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 250px;
    height: 250px;
    background: var(--color-accent);
    opacity: 0.15;
    filter: blur(80px);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

/* Tech Cards */
.tech-card {
    background-color: var(--color-card-bg);
    transition: all 0.2s ease;
}

.tech-card:hover {
    border-color: var(--color-accent) !important;
    transform: translateY(-2px);
}

.tech-card-ai {
    background: linear-gradient(135deg, var(--color-card-bg) 0%, var(--color-bg-subtle) 100%);
    border: 1px solid var(--color-accent) !important;
}

/* Services */
.service-card {
    transition: all 0.2s ease;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    width: 44px;
    height: 44px;
    background-color: var(--color-accent-subtle);
    color: var(--color-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.highlight-service {
    border: 1px solid var(--color-accent) !important;
}

/* Projects */
.project-card {
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.project-img {
    height: 200px;
    object-fit: cover;
    filter: brightness(0.95);
    transition: transform 0.3s ease;
}

.project-card:hover .project-img {
    transform: scale(1.02);
}

/* Timeline */
.timeline-wrapper {
    border-color: var(--color-border) !important;
}

.timeline-dot {
    position: absolute;
    left: -29px;
    top: 4px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background-color: var(--color-accent);
    box-shadow: 0 0 0 4px var(--color-background);
}

/* Contact Cards */
.contact-card {
    transition: all 0.2s ease;
}

.contact-card:hover {
    border-color: var(--color-accent) !important;
    transform: translateY(-2px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-accent-subtle);
    color: var(--color-accent);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

/* Animations & Intersection Observer */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* prefers-reduced-motion Support */
@media (prefers-reduced-motion: reduce) {
    *, ::before, ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .reveal-on-scroll {
        opacity: 1;
        transform: none;
    }
}