/* ============================================
   RETINA CLOUD - RETRO-FUTURISTIC STYLESHEET
   Base Color Scheme: Black BG / Yellow FG
   ============================================ */

/* CSS Variables */
:root {
    --primary-yellow: #F8F100;
    --background-black: #000000;
    --dark-gray: #1a1a1a;
    --medium-gray: #333333;
    --light-gray: #4a4a4a;
    
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
    --font-terminal: 'Courier New', monospace;
    --font-heading: 'Arial', sans-serif;
    
    --glow-yellow: 0 0 10px rgba(248, 241, 0, 0.5);
    --glow-strong: 0 0 20px rgba(248, 241, 0, 0.8);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--background-black);
    color: var(--primary-yellow);
    font-family: var(--font-mono);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* CRT Screen Effects */
.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            rgba(0, 0, 0, 0.15),
            rgba(0, 0, 0, 0.15) 1px,
            transparent 1px,
            transparent 2px
        );
    pointer-events: none;
    z-index: 9999;
    animation: flicker 0.15s infinite;
}

.scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(248, 241, 0, 0.02) 50%
    );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 9998;
    animation: scan 8s linear infinite;
}

@keyframes flicker {
    0% { opacity: 0.97; }
    50% { opacity: 1; }
    100% { opacity: 0.97; }
}

@keyframes scan {
    0% { background-position: 0 0; }
    100% { background-position: 0 100%; }
}

/* Grid Background */
.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(248, 241, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(248, 241, 0, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

/* Main Container */
.main-container {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.terminal-header {
    margin-bottom: 40px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px 0;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-image {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 0 5px rgba(248, 241, 0, 0.3));
    transition: all 0.3s ease;
}

.logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: bold;
    letter-spacing: 4px;
    text-shadow: var(--glow-yellow);
}

.terminal-bracket {
    font-size: 2rem;
    color: var(--primary-yellow);
    opacity: 0.7;
}

.main-nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--primary-yellow);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 1rem;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    padding: 8px 12px;
    border: 1px solid transparent;
}

.nav-link:hover {
    text-shadow: var(--glow-yellow);
    border: 1px solid var(--primary-yellow);
    background-color: rgba(248, 241, 0, 0.1);
}

.nav-link.active {
    background-color: var(--primary-yellow);
    color: var(--background-black);
    border: 1px solid var(--primary-yellow);
    font-weight: bold;
}

.nav-arrow {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-link:hover .nav-arrow,
.nav-link.active .nav-arrow {
    opacity: 1;
}

.terminal-line {
    height: 2px;
    background: linear-gradient(
        to right,
        transparent,
        var(--primary-yellow),
        transparent
    );
    box-shadow: var(--glow-yellow);
}

/* Content Area */
.content {
    flex: 1;
    margin-bottom: 40px;
}

/* Terminal Box Styles */
.terminal-box {
    margin: 30px 0;
    padding: 0;
}

.section-header,
.section-footer {
    color: var(--primary-yellow);
    font-family: var(--font-terminal);
    font-size: 0.8rem;
    overflow-x: auto;
    white-space: nowrap;
}

.section-content {
    padding: 30px;
    border-left: 2px solid var(--primary-yellow);
    border-right: 2px solid var(--primary-yellow);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 20px;
    letter-spacing: 3px;
}

.terminal-arrow {
    color: var(--primary-yellow);
    margin-right: 10px;
}

/* Inverted Style (Yellow BG / Black FG) */
.terminal-box.inverted .section-content {
    background-color: var(--primary-yellow);
    color: var(--background-black);
}

.terminal-box.inverted .section-title,
.terminal-box.inverted .terminal-arrow {
    color: var(--background-black);
}

/* Footer Styles */
.terminal-footer {
    margin-top: auto;
    padding-top: 40px;
}

.footer-content {
    text-align: center;
    padding: 20px 0;
}

.footer-text {
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.footer-subtext {
    font-size: 0.8rem;
    opacity: 0.7;
}

.blink-cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: 50px;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    letter-spacing: 5px;
    margin-bottom: 20px;
    text-shadow: var(--glow-yellow);
}

.header-line {
    height: 2px;
    background: linear-gradient(
        to right,
        transparent,
        var(--primary-yellow),
        transparent
    );
    margin: 0 auto;
    width: 60%;
}

/* Glitch Effect */
.glitch-text {
    position: relative;
    font-size: 3rem;
    font-family: var(--font-heading);
    letter-spacing: 5px;
    text-transform: uppercase;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch-text::before {
    animation: glitch-1 2s infinite;
    color: var(--primary-yellow);
    z-index: -1;
}

.glitch-text::after {
    animation: glitch-2 3s infinite;
    color: var(--primary-yellow);
    z-index: -2;
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    25% { transform: translate(2px, 0); }
    50% { transform: translate(-2px, 0); }
    75% { transform: translate(0, 2px); }
}

/* Buttons */
.cta-button,
.submit-button {
    background-color: transparent;
    color: var(--primary-yellow);
    border: 2px solid var(--primary-yellow);
    padding: 15px 40px;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin-top: 20px;
}

.cta-button:hover,
.submit-button:hover {
    background-color: var(--primary-yellow);
    color: var(--background-black);
    box-shadow: var(--glow-strong);
    transform: translateY(-2px);
}

.button-bracket {
    font-weight: bold;
}

/* Lists */
.tech-list,
.vision-points,
.partner-types {
    list-style: none;
    margin-top: 20px;
}

.tech-list li,
.vision-point,
.partner-type {
    margin: 15px 0;
    padding-left: 30px;
    position: relative;
}

.list-bullet,
.point-marker,
.type-bullet {
    position: absolute;
    left: 0;
    color: var(--primary-yellow);
}

.terminal-box.inverted .list-bullet,
.terminal-box.inverted .point-marker,
.terminal-box.inverted .type-bullet {
    color: var(--background-black);
}

/* Feature Items */
.tech-features,
.research-areas {
    margin-top: 20px;
}

.feature-item,
.research-item {
    display: flex;
    gap: 15px;
    margin: 20px 0;
    align-items: flex-start;
}

.feature-marker,
.research-marker {
    color: var(--primary-yellow);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.terminal-box.inverted .feature-marker,
.terminal-box.inverted .research-marker {
    color: var(--background-black);
}

/* Forms */
.contact-form {
    max-width: 800px;
    margin: 30px auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    margin-bottom: 10px;
    font-size: 1rem;
    letter-spacing: 2px;
}

.label-bracket {
    opacity: 0.7;
}

.form-input,
.form-textarea {
    width: 100%;
    background-color: var(--dark-gray);
    border: 2px solid var(--primary-yellow);
    color: var(--primary-yellow);
    font-family: var(--font-mono);
    font-size: 1rem;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    box-shadow: var(--glow-yellow);
    background-color: var(--medium-gray);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(248, 241, 0, 0.4);
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
}

.form-actions {
    text-align: center;
}

.form-status {
    margin-top: 20px;
    padding: 15px;
    border: 2px solid var(--primary-yellow);
    text-align: center;
    letter-spacing: 2px;
}

.form-status.hidden {
    display: none;
}

.form-status.success {
    background-color: rgba(248, 241, 0, 0.1);
    color: var(--primary-yellow);
}

.form-status.error {
    background-color: rgba(255, 0, 0, 0.1);
    border-color: #ff0000;
    color: #ff0000;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .main-nav {
        flex-direction: column;
        gap: 15px;
    }
    
    .logo-image {
        height: 60px;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .glitch-text {
        font-size: 2rem;
    }
    
    .section-header,
    .section-footer {
        font-size: 0.6rem;
    }
}