/* ==========================================================================
   ASI CONSTRUCT - Components (Brutalist Editorial)
   Strict Palette: Void (#000000), Paper (#FFFFFF), Acid (#DFFF00)
   ========================================================================== */

/* ==========================================================================
   Acid Button - Aggressive, high-contrast action button
   Background: #DFFF00; Color: #000000; Padding: 12px 32px
   Font: Inter Bold, 11px, 0.3em tracking
   Hover: increase right-padding, reveal hidden arrow icon
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px 32px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    border: var(--border-thin) solid transparent;
    transition: all var(--duration-normal) var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

/* Primary Button - Acid */
.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-void);
    border-color: var(--color-accent);
}

[data-theme="light"] .btn-primary {
    color: #FFFFFF;
}

.btn-primary::after {
    content: '→';
    position: absolute;
    right: 16px;
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--duration-normal) var(--ease-out-expo);
    color: inherit;
}

.btn-primary:hover {
    padding-right: 48px;
}

.btn-primary:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* Secondary Button - Outline */
.btn-secondary {
    background-color: transparent;
    color: var(--color-text-secondary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Ghost Button - Text Only */
.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
    color: var(--color-accent);
}

/* Large Button */
.btn-lg {
    padding: var(--space-5) var(--space-8);
    font-size: var(--text-sm);
}

/* Full Width Button */
.btn-full {
    width: 100%;
}

/* ==========================================================================
   Pulse Dot - Status Indicator (Acid #DFFF00)
   Pulsing dot next to 'SYSTEM ONLINE' label
   ========================================================================== */

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
    position: relative;
}

.pulse-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(2.5);
        opacity: 0;
    }
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-4);
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-size: var(--text-base);
    transition: border-color var(--duration-fast);
}

[data-theme="light"] .form-input,
[data-theme="light"] .form-textarea {
    background-color: #F5F5F5;
    border-color: rgba(0, 0, 0, 0.2);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Radio/Checkbox Group */
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.radio-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--duration-fast);
    color: var(--color-text-secondary);
}

[data-theme="light"] .radio-option {
    background-color: #F5F5F5;
    border-color: rgba(0, 0, 0, 0.2);
}

.radio-option:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.radio-option input {
    accent-color: var(--color-accent);
}

.radio-option:has(input:checked) {
    background-color: var(--color-accent-10);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ==========================================================================
   Cards - System Specs Grid
   1px #FFFFFF/10 borders, module ID in #DFFF00
   Hover: background shifts to 2% white, title turns #DFFF00
   ========================================================================== */

/* Service Module Card */
.module-card {
    padding: var(--space-8);
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.module-card:hover {
    border-color: var(--color-accent);
    background-color: var(--color-bg-elevated);
}

.module-card:hover .module-title {
    color: var(--color-accent);
}

.module-id {
    font-family: var(--font-sans);
    font-size: 10px;
    letter-spacing: var(--tracking-widest);
    color: var(--color-accent);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
}

.module-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
    transition: color var(--duration-fast);
}

.module-description {
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    opacity: 0.6;
    transition: opacity var(--duration-normal);
}

.module-card:hover .module-description {
    opacity: 1;
}

/* Module CTA */
.module-cta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
    font-family: var(--font-sans);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-muted);
    transition: color var(--duration-fast);
}

.module-card:hover .module-cta {
    color: var(--color-accent);
}

.module-cta-arrow {
    transition: transform var(--duration-fast);
}

.module-card:hover .module-cta-arrow {
    transform: translateX(4px);
}

/* Case Study Card */
.case-card {
    display: block;
    position: relative;
    background-color: var(--color-bg-elevated);
    border: 1px solid transparent;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.case-card:hover {
    border-color: var(--color-accent);
}

.case-card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    position: relative;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter var(--duration-normal);
}

.case-card:hover .case-card-image img {
    filter: grayscale(0%);
}

.case-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-4);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    display: flex;
    gap: var(--space-4);
}

.case-card-stat {
    font-size: var(--text-sm);
}

.case-card-stat-value {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    color: var(--color-accent);
}

.case-card-stat-label {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
}

.case-card-content {
    padding: var(--space-6);
}

.case-card-label {
    font-size: 10px;
    letter-spacing: var(--tracking-widest);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.case-card-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
    color: var(--color-text-primary);
}

.case-card-excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

/* Stat Card */
.stat-card {
    padding: var(--space-8);
    background-color: transparent;
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out-expo);
    cursor: default;
}

.stat-card:hover {
    border-color: var(--color-accent);
    background-color: rgba(0, 71, 171, 0.05);
    box-shadow: 0 0 30px rgba(0, 71, 171, 0.2), 0 0 60px rgba(0, 71, 171, 0.1);
    transform: translateY(-4px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 80px);
    line-height: var(--leading-none);
    color: var(--color-accent);
    margin-bottom: var(--space-2);
    transition: text-shadow var(--duration-normal);
}

.stat-card:hover .stat-number {
    text-shadow: 0 0 20px rgba(0, 71, 171, 0.5);
}

.stat-label {
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: var(--space-1);
    color: var(--color-text-primary);
}

.stat-detail {
    font-size: 10px;
    color: var(--color-text-secondary);
    letter-spacing: var(--tracking-wide);
}

/* ==========================================================================
   Navigation
   Fixed top nav, pointer-events-none container
   Left: pulsing #DFFF00 dot + 'SYSTEM ONLINE' (10px, 0.3em tracking)
   ========================================================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    padding: var(--space-6) var(--space-8);
    pointer-events: none; /* Nav floats above but doesn't block clicks */
    transition: all var(--duration-normal);
}

.header.scrolled {
    background-color: var(--color-bg-primary);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    pointer-events: auto; /* Re-enable when scrolled (has background) */
    padding: var(--space-4) var(--space-8);
}

[data-theme="dark"] .header.scrolled {
    background-color: rgba(0, 0, 0, 0.98);
}

[data-theme="light"] .header.scrolled {
    background-color: rgba(250, 250, 250, 0.98);
}

.nav {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    width: 100%;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 400;
    letter-spacing: var(--tracking-tight);
    color: var(--color-text-primary);
    pointer-events: auto; /* Make clickable */
}

.nav-status {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: 10px;
    letter-spacing: var(--tracking-widest);
    color: var(--color-accent);
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-link {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--duration-fast);
    text-decoration: none;
    pointer-events: auto;
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link.active {
    color: var(--color-text-primary);
    text-decoration: underline;
    text-decoration-color: var(--color-accent-30);
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

/* Demo Link - Special Highlight */
.nav-link--demo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--color-accent-10);
    border: 1px solid var(--color-accent-30);
    color: var(--color-accent);
    font-weight: 500;
}

.nav-link--demo:hover {
    background: var(--color-accent-20);
    border-color: var(--color-accent);
}

.nav-demo-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: navDemoPulse 2s ease-in-out infinite;
}

@keyframes navDemoPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    pointer-events: auto; /* Make clickable */
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-2);
    z-index: calc(var(--z-header) + 1);
    pointer-events: auto; /* Make clickable */
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--duration-fast);
}

.mobile-menu-btn.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
    .nav-status {
        display: none;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-8);
        opacity: 0;
        visibility: hidden;
        transition: all var(--duration-normal);
    }

    .nav-links.mobile-open {
        opacity: 1;
        visibility: visible;
    }

    .nav-links .nav-link {
        font-size: var(--text-2xl);
    }

    .nav-cta .btn {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

/* ==========================================================================
   FAQ Accordion
   Active: Blue left border in #DFFF00
   Plus → X rotation on toggle
   ========================================================================== */

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-6) 0;
    text-align: left;
    font-size: var(--text-lg);
    font-weight: 400;
    color: var(--color-text-secondary);
    transition: color var(--duration-fast);
}

.faq-question:hover {
    color: var(--color-accent);
}

.faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    transition: transform var(--duration-normal) var(--ease-out-expo);
    color: var(--color-text-secondary);
}

.faq-item.active .faq-question {
    color: var(--color-accent);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--color-accent);
}

.faq-item.active {
    border-left: 1px solid var(--color-accent);
    padding-left: var(--space-4);
    margin-left: calc(var(--space-4) * -1);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out-expo);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-bottom: var(--space-6);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

/* ==========================================================================
   Badge
   ========================================================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: transparent;
    border: 1px solid var(--color-border);
    font-size: 10px;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.badge-acid {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ==========================================================================
   Cookie Popup - Inverted (Acid background, Void text)
   ========================================================================== */

.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-accent);
    color: var(--color-void);
    padding: var(--space-5);
    z-index: var(--z-modal);
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.cookie-popup.visible {
    transform: translateY(0);
}

.cookie-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-6);
}

.cookie-text h4 {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.cookie-text p {
    font-size: var(--text-sm);
    opacity: 0.8;
}

.cookie-text a {
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: var(--space-3);
    flex-shrink: 0;
}

.cookie-actions .btn {
    padding: var(--space-3) var(--space-5);
}

.cookie-decline {
    background-color: transparent;
    border: 1px solid var(--color-void);
    color: var(--color-void);
}

.cookie-accept {
    background-color: var(--color-void);
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-actions {
        width: 100%;
    }

    .cookie-actions .btn {
        flex: 1;
    }
}

/* ==========================================================================
   Theme Toggle Button
   ========================================================================== */

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--color-border);
    cursor: pointer;
    pointer-events: auto;
    transition: all var(--duration-fast);
}

.theme-toggle:hover {
    border-color: var(--color-accent);
}

.theme-toggle:hover .theme-icon {
    color: var(--color-accent);
}

.theme-icon {
    width: 18px;
    height: 18px;
    color: var(--color-text-secondary);
    transition: color var(--duration-fast);
}

/* Show sun in dark mode, moon in light mode */
.theme-icon-sun {
    display: block;
}

.theme-icon-moon {
    display: none;
}

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

[data-theme="light"] .theme-icon-moon {
    display: block;
}