/* ==========================================================================
   THEME STYLES - GERARD ISCALA
   Default: Light Mode | Optional: Dark Mode
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Theme Variables
   -------------------------------------------------------------------------- */
:root,
[data-theme="light"] {
    --bg-color: #f8fafc;
    --surface-color: #ffffff;
    --surface-secondary: #f1f5f9;
    --primary-color: #0891b2; /* Deep Cyan / Teal for high contrast */
    --primary-glow: rgba(8, 145, 178, 0.2);
    --secondary-color: #0284c7; /* Electric Blue */
    --accent-gradient: linear-gradient(135deg, #0891b2, #0284c7);
    --cta-text: #ffffff;
    --text-main: #0f172a; /* Slate 900 */
    --text-muted: #475569; /* Slate 600 */
    --text-subtle: #64748b;
    --border-color: rgba(15, 23, 42, 0.08);
    --border-card: rgba(15, 23, 42, 0.08);
    --border-card-hover: #0891b2;
    --glow-shadow: 0 4px 20px rgba(8, 145, 178, 0.25);
    --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
    --card-shadow-hover: 0 20px 35px -5px rgba(8, 145, 178, 0.15), 0 8px 16px -2px rgba(15, 23, 42, 0.05);
    --nav-bg: rgba(248, 250, 252, 0.85);
    --nav-border: rgba(15, 23, 42, 0.08);
    --nav-scrolled-bg: rgba(255, 255, 255, 0.96);
    --nav-scrolled-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    --hero-glow: radial-gradient(circle, rgba(8, 145, 178, 0.12) 0%, transparent 70%);
    --card-hover-bg: radial-gradient(circle at top right, rgba(8, 145, 178, 0.07), transparent 70%);
    --trust-gradient: linear-gradient(180deg, var(--bg-color) 0%, #e2e8f0 100%);
    --project-img-bg: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    --project-img-text: rgba(15, 23, 42, 0.25);
    --tag-bg: rgba(8, 145, 178, 0.1);
    --tag-color: #0e7490;
    --quote-color: rgba(8, 145, 178, 0.15);
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --input-focus-border: #0891b2;
    --input-focus-shadow: 0 0 0 3px rgba(8, 145, 178, 0.18);
    --mobile-menu-bg: #ffffff;
    --banner-bg: #f8fafc;
    --banner-border: rgba(15, 23, 42, 0.1);
    --warning-banner-bg: #fffbeb;
    --warning-banner-border: rgba(245, 158, 11, 0.3);
    --warning-color: #d97706;
    --icon-box-bg: rgba(8, 145, 178, 0.08);
    --logo-filter: drop-shadow(0 2px 6px rgba(8, 145, 178, 0.3));
    --theme-toggle-bg: #e2e8f0;
    --theme-toggle-thumb: #ffffff;
    --theme-toggle-border: #cbd5e1;
    --theme-toggle-icon-color: #475569;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --cta-section-gradient: linear-gradient(180deg, var(--bg-color) 0%, #e2e8f0 100%);
}

[data-theme="dark"] {
    --bg-color: #0a0f1e;
    --surface-color: #161c2e;
    --surface-secondary: rgba(255, 255, 255, 0.03);
    --primary-color: #00d4d4; /* Neon cyan */
    --primary-glow: rgba(0, 212, 212, 0.3);
    --secondary-color: #1e90ff; /* Electric blue */
    --accent-gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --cta-text: #000000;
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --text-subtle: #64748b;
    --border-color: rgba(255, 255, 255, 0.05);
    --border-card: rgba(255, 255, 255, 0.06);
    --border-card-hover: var(--primary-color);
    --glow-shadow: 0 0 20px rgba(0, 212, 212, 0.3);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 212, 212, 0.15);
    --nav-bg: rgba(10, 15, 30, 0.8);
    --nav-border: rgba(255, 255, 255, 0.05);
    --nav-scrolled-bg: rgba(10, 15, 30, 0.95);
    --nav-scrolled-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    --hero-glow: radial-gradient(circle, rgba(0, 212, 212, 0.1) 0%, transparent 70%);
    --card-hover-bg: radial-gradient(circle at top right, rgba(0, 212, 212, 0.1), transparent 70%);
    --trust-gradient: linear-gradient(180deg, var(--bg-color) 0%, #111827 100%);
    --project-img-bg: linear-gradient(45deg, #1e293b, #0f172a);
    --project-img-text: rgba(255, 255, 255, 0.1);
    --tag-bg: rgba(0, 212, 212, 0.1);
    --tag-color: var(--primary-color);
    --quote-color: rgba(0, 212, 212, 0.2);
    --input-bg: rgba(255, 255, 255, 0.03);
    --input-border: rgba(255, 255, 255, 0.1);
    --input-focus-border: var(--primary-color);
    --input-focus-shadow: 0 0 15px rgba(0, 212, 212, 0.2);
    --mobile-menu-bg: #0a0f1e;
    --banner-bg: rgba(255, 255, 255, 0.02);
    --banner-border: rgba(255, 255, 255, 0.05);
    --warning-banner-bg: rgba(245, 158, 11, 0.05);
    --warning-banner-border: rgba(245, 158, 11, 0.2);
    --warning-color: #f59e0b;
    --icon-box-bg: rgba(0, 212, 212, 0.1);
    --logo-filter: drop-shadow(0 0 8px rgba(0, 212, 212, 0.6));
    --theme-toggle-bg: #1e293b;
    --theme-toggle-thumb: #0f172a;
    --theme-toggle-border: rgba(255, 255, 255, 0.1);
    --theme-toggle-icon-color: #f8fafc;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --cta-section-gradient: linear-gradient(180deg, var(--bg-color) 0%, #111827 100%);
}

/* --------------------------------------------------------------------------
   2. Global Theme Adaptations
   -------------------------------------------------------------------------- */
body {
    background-color: var(--bg-color) !important;
    color: var(--text-main) !important;
    transition: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

nav {
    background: var(--nav-bg) !important;
    border-bottom: 1px solid var(--nav-border) !important;
    transition: background 0.3s ease, border-color 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease !important;
}

nav.scrolled {
    background: var(--nav-scrolled-bg) !important;
    box-shadow: var(--nav-scrolled-shadow) !important;
}

.logo img {
    filter: var(--logo-filter) !important;
    transition: filter 0.3s ease, transform 0.3s ease !important;
}

.nav-links a {
    color: var(--text-muted) !important;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color) !important;
}

.hero::before {
    background: var(--hero-glow) !important;
}

.hero h1 {
    color: var(--text-main) !important;
}

.hero p {
    color: var(--text-muted) !important;
}

.cta-button {
    color: var(--cta-text) !important;
    box-shadow: var(--glow-shadow) !important;
}

.service-card {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s ease,
                box-shadow 0.3s ease,
                background-color 0.3s ease !important;
}

.service-card:hover {
    border-color: var(--border-card-hover) !important;
    box-shadow: var(--card-shadow-hover) !important;
}

.service-card::before {
    background: var(--card-hover-bg) !important;
}

.service-card h3 {
    color: var(--primary-color) !important;
}

.service-card p {
    color: var(--text-muted) !important;
}

.trust-section {
    background: var(--trust-gradient) !important;
}

.trust-item h3 {
    color: var(--text-main) !important;
}

.trust-item p {
    color: var(--text-muted) !important;
}

.contact-item {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
    color: var(--text-main) !important;
}

.contact-item:hover {
    border-color: var(--secondary-color) !important;
    box-shadow: 0 8px 30px rgba(2, 132, 199, 0.2) !important;
}

.contact-item span {
    color: var(--text-main) !important;
}

.contact-form {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
}

.form-group label {
    color: var(--text-muted) !important;
}

.form-control {
    background: var(--input-bg) !important;
    border: 1px solid var(--input-border) !important;
    color: var(--text-main) !important;
}

.form-control:focus {
    background: var(--input-bg) !important;
    border-color: var(--input-focus-border) !important;
    box-shadow: var(--input-focus-shadow) !important;
}

.submit-btn {
    color: var(--cta-text) !important;
    box-shadow: var(--glow-shadow) !important;
}

.skill-item {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
}

.skill-item:hover {
    border-color: var(--primary-color) !important;
    box-shadow: var(--glow-shadow) !important;
}

.skill-item span {
    color: var(--text-muted) !important;
}

.project-card {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
}

.project-card:hover {
    border-color: var(--secondary-color) !important;
    box-shadow: var(--card-shadow-hover) !important;
}

.project-img {
    background-color: var(--surface-secondary);
}

.project-img:not([style*="background"]) {
    background: var(--project-img-bg);
}

.project-img::after {
    display: none !important;
}

.project-tag {
    background: var(--tag-bg) !important;
    color: var(--tag-color) !important;
}

.project-info h3 {
    color: var(--text-main) !important;
}

.project-info p {
    color: var(--text-muted) !important;
}

.testimonial-card {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
}

.testimonial-card::before {
    color: var(--quote-color) !important;
}

.testimonial-content {
    color: var(--text-muted) !important;
}

.author-info h4 {
    color: var(--text-main) !important;
}

footer {
    border-top: 1px solid var(--border-card) !important;
    color: var(--text-muted) !important;
}

/* Detail Pages Specific Styles */
.back-link {
    color: var(--text-muted) !important;
}

.back-link:hover {
    color: var(--primary-color) !important;
}

/* CTA section (product-cta) - uses theme-aware gradient */
.product-cta {
    background: var(--cta-section-gradient) !important;
}

/* Hero headings in detail pages (ciberseguridad, networking, infraestructura, etc.) - gradient text */
.product-hero h1,
.hero .product-badge ~ h1,
.hero h1.gradient-text {
    background: var(--accent-gradient) !important;
    -webkit-background-clip: text !important;
    background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
}

/* Service card heading in detail pages */
.service-card h3 {
    color: var(--primary-color) !important;
}

/* Spec / Layer / Feature / Stat items */
.spec-item h3,
.layer-card h3,
.feature-item h3,
.stat-item h3 {
    color: var(--text-main) !important;
}

.spec-item p,
.layer-card p,
.feature-item p,
.stat-item p {
    color: var(--text-muted) !important;
}

.spec-item strong,
.stat-item strong {
    color: var(--primary-color) !important;
}

/* Bottom CTA container on detail pages */
.bottom-cta {
    background: transparent !important;
}

.product-badge {
    background: var(--tag-bg) !important;
    color: var(--tag-color) !important;
    border-color: var(--primary-glow) !important;
}

.protection-banner {
    background: var(--warning-banner-bg) !important;
    border: 1px solid var(--warning-banner-border) !important;
}

.protection-banner .banner-text h2 {
    color: var(--text-main) !important;
}

.protection-banner .banner-text p {
    color: var(--text-muted) !important;
}

.cta-card {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
}

.cta-card h2 {
    color: var(--text-main) !important;
}

.cta-card p {
    color: var(--text-muted) !important;
}

.icon-box {
    background: var(--icon-box-bg) !important;
}

.spec-item,
.protocol-item,
.feature-item,
.layer-card,
.stat-item {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow) !important;
}

/* Mobile Menu Adaptations */
@media (max-width: 768px) {
    .nav-links {
        background: var(--mobile-menu-bg) !important;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15) !important;
    }

    .nav-links a {
        color: var(--text-main) !important;
    }

    .mobile-menu-btn span {
        background: var(--text-main) !important;
    }
}

/* --------------------------------------------------------------------------
   3. Theme Switch Toggle Component
   -------------------------------------------------------------------------- */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    width: 64px;
    height: 32px;
    background: var(--theme-toggle-bg);
    border: 1px solid var(--theme-toggle-border);
    border-radius: 9999px;
    padding: 3px 6px;
    cursor: pointer;
    outline: none;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.theme-toggle-btn:hover {
    box-shadow: 0 0 12px var(--primary-glow);
    border-color: var(--primary-color);
}

.theme-toggle-btn:focus-visible {
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Track Icons */
.theme-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    z-index: 1;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-icon svg {
    width: 14px;
    height: 14px;
}

.theme-icon-sun {
    color: #eab308; /* Warm golden sun */
}

.theme-icon-moon {
    color: #38bdf8; /* Cyan/sky moon */
}

/* Sliding Indicator Thumb */
.theme-toggle-thumb {
    position: absolute;
    top: 3px;
    left: 4px;
    width: 24px;
    height: 24px;
    background: var(--surface-color);
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                background-color 0.3s ease;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* State: Light Mode */
[data-theme="light"] .theme-toggle-thumb {
    transform: translateX(0);
}

[data-theme="light"] .theme-icon-sun {
    opacity: 0;
}

[data-theme="light"] .theme-icon-moon {
    opacity: 0.7;
}

/* State: Dark Mode */
[data-theme="dark"] .theme-toggle-thumb {
    transform: translateX(30px);
    background: #0f172a;
}

[data-theme="dark"] .theme-icon-sun {
    opacity: 0.7;
}

[data-theme="dark"] .theme-icon-moon {
    opacity: 0;
}

/* Thumb inner active icon */
.thumb-icon {
    width: 13px;
    height: 13px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

[data-theme="light"] .thumb-icon.sun-active {
    display: block;
    color: #d97706;
}

[data-theme="light"] .thumb-icon.moon-active {
    display: none;
}

[data-theme="dark"] .thumb-icon.sun-active {
    display: none;
}

[data-theme="dark"] .thumb-icon.moon-active {
    display: block;
    color: #38bdf8;
}

/* Navigation layout integration */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .nav-actions {
        gap: 1rem;
    }
    
    .theme-switch-wrapper {
        margin-right: 0.5rem;
    }
}

/* --------------------------------------------------------------------------
   4. Additional Element Overrides (handles inline hardcoded colors)
   -------------------------------------------------------------------------- */

/* CTA button hover - theme-aware glow */
.cta-button:hover {
    box-shadow: var(--card-shadow-hover) !important;
    transform: translateY(-3px);
}

/* Service card hover - theme-aware box-shadow */
.service-card:hover {
    box-shadow: var(--card-shadow-hover) !important;
}

/* Logo animation override — suppress neon glow in light mode */
[data-theme="light"] .logo img {
    animation: none !important;
    filter: var(--logo-filter) !important;
}

[data-theme="light"] .logo img:hover {
    filter: var(--logo-filter) drop-shadow(0 4px 8px rgba(8, 145, 178, 0.4)) brightness(1.1) !important;
    transform: scale(1.05);
}

/* Logo icons hover glow — theme-aware */
[data-theme="light"] .logo:hover .logo-icons svg {
    filter: drop-shadow(0 0 4px rgba(8, 145, 178, 0.6)) !important;
}

/* Section headings */
section h2:not(.gradient-text) {
    color: var(--text-main) !important;
}

/* General text areas */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
}

/* Testimonial author company */
.author-info span {
    color: var(--text-subtle) !important;
}

/* Form placeholders */
.form-control::placeholder {
    color: var(--text-subtle) !important;
    opacity: 1;
}

/* Contact item icon */
.contact-item-icon {
    background: var(--icon-box-bg) !important;
}

/* Section padding and theme-aware decoration elements */
.skill-category-title,
.skills-intro {
    color: var(--text-muted) !important;
}

/* Hero Split & Floating Cards Theme Integration */
.floating-card {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: var(--card-shadow-hover) !important;
}

.floating-card .card-title {
    color: var(--text-main) !important;
}

.floating-card .card-subtitle {
    color: var(--text-muted) !important;
}

.hero-status-badge {
    background: var(--tag-bg) !important;
    border-color: var(--border-card) !important;
    color: var(--primary-color) !important;
}

.secondary-btn {
    background: var(--surface-secondary) !important;
    border-color: var(--border-card) !important;
    color: var(--text-main) !important;
}

.secondary-btn:hover {
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
}

.metric-num {
    color: var(--text-main) !important;
}

.metric-label {
    color: var(--text-muted) !important;
}

.metric-divider {
    background: var(--border-card) !important;
}