/* ========================================
   SQUAREFRIEND - Tron-Inspired Design
   ======================================== */

:root {
    /* Tron Color Palette */
    --neon-blue: #00d4ff;
    --neon-cyan: #00fff7;
    --neon-purple: #b347ff;
    --neon-pink: #ff00ff;
    --dark-bg: #0a0a0f;
    --darker-bg: #05050a;
    --card-bg: rgba(15, 15, 25, 0.8);
    --grid-color: rgba(0, 212, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    --gradient-glow: linear-gradient(135deg, rgba(0, 212, 255, 0.3), rgba(179, 71, 255, 0.3));
    
    /* Fonts */
    --font-display: 'Orbitron', monospace;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --section-padding: clamp(4rem, 10vw, 8rem);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   BACKGROUND EFFECTS
   ======================================== */
.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.glow-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--neon-blue);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--neon-purple);
    bottom: 20%;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: var(--neon-cyan);
    top: 50%;
    right: 20%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 10px) scale(1.05); }
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 2rem;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    color: var(--neon-blue);
    font-size: 1.5rem;
    text-shadow: 0 0 20px var(--neon-blue);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--neon-blue);
}

.btn-nav {
    background: var(--gradient-primary);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    color: var(--text-primary) !important;
    font-weight: 500;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: 0.3s;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--neon-blue);
    background: rgba(0, 212, 255, 0.1);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--neon-cyan);
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--neon-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero Visual - 3D Cube */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cube-container {
    width: 250px;
    height: 250px;
    perspective: 1000px;
}

.cube {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    animation: rotate 20s infinite linear;
}

@keyframes rotate {
    from { transform: rotateX(0) rotateY(0); }
    to { transform: rotateX(360deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    border: 2px solid var(--neon-blue);
    background: rgba(0, 212, 255, 0.05);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3), inset 0 0 20px rgba(0, 212, 255, 0.1);
}

.front { transform: translateZ(100px); }
.back { transform: rotateY(180deg) translateZ(100px); }
.right { transform: rotateY(90deg) translateZ(100px); }
.left { transform: rotateY(-90deg) translateZ(100px); }
.top { transform: rotateX(90deg) translateZ(100px); }
.bottom { transform: rotateX(-90deg) translateZ(100px); }

/* ========================================
   SECTIONS COMMON
   ======================================== */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
}

.section-label {
    display: block;
    font-size: 0.875rem;
    color: var(--neon-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features {
    padding: var(--section-padding) 0;
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--neon-blue);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   MISSION SECTION
   ======================================== */
.mission {
    padding: var(--section-padding) 0;
    position: relative;
    z-index: 1;
    background: linear-gradient(180deg, transparent, rgba(0, 212, 255, 0.03), transparent);
}

.mission-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.mission-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.mission-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
    padding: var(--section-padding) 0;
    position: relative;
    z-index: 1;
}

.cta-card {
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 24px;
    padding: 4rem 2rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-card h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: 1rem;
}

.cta-card > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 550px;
    margin: 0 auto;
    text-align: left;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row input {
    flex: 1;
}

.waitlist-form input[type="text"],
.waitlist-form input[type="email"] {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1rem;
}

.waitlist-form input[type="text"]:focus,
.waitlist-form input[type="email"]:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

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

.form-group {
    margin-bottom: 0.5rem;
}

.tools-label {
    display: block;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: center;
}

.tools-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
}

.tool-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-checkbox:hover {
    border-color: rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.05);
}

.tool-checkbox input[type="checkbox"] {
    display: none;
}

.tool-checkbox .checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.tool-checkbox .checkmark::after {
    content: '✓';
    color: var(--neon-blue);
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.tool-checkbox input[type="checkbox"]:checked + .checkmark {
    border-color: var(--neon-blue);
    background: rgba(0, 212, 255, 0.2);
}

.tool-checkbox input[type="checkbox"]:checked + .checkmark::after {
    opacity: 1;
}

.tool-checkbox .tool-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.tool-checkbox:has(input:checked) .tool-name {
    color: var(--text-primary);
}

.custom-tools-input {
    width: 100%;
    margin-top: 1rem;
    padding: 0.875rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.custom-tools-input:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.custom-tools-input::placeholder {
    color: var(--text-muted);
}

.btn-full {
    width: 100%;
}

.form-message {
    text-align: center;
    padding: 0.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    min-height: 1.5rem;
}

.form-message.success {
    background: rgba(0, 255, 136, 0.1);
    color: #00ff88;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.form-message.error {
    background: rgba(255, 68, 68, 0.1);
    color: #ff4444;
    border: 1px solid rgba(255, 68, 68, 0.2);
}

.form-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: 3rem 0;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--neon-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
        margin-bottom: 2rem;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .cube-container {
        width: 150px;
        height: 150px;
    }

    .cube-face {
        width: 120px;
        height: 120px;
    }

    .front { transform: translateZ(60px); }
    .back { transform: rotateY(180deg) translateZ(60px); }
    .right { transform: rotateY(90deg) translateZ(60px); }
    .left { transform: rotateY(-90deg) translateZ(60px); }
    .top { transform: rotateX(90deg) translateZ(60px); }
    .bottom { transform: rotateX(-90deg) translateZ(60px); }

    .mission-stats {
        gap: 2rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .form-row {
        flex-direction: column;
    }

    .tools-options {
        grid-template-columns: 1fr;
    }
}