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

html {
    max-width: 100%;
    overflow-x: hidden;
    height: 100%;
    height: 100vh;
    height: 100dvh;
    background: #000000;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

:root {
    /* Colors */
    --primary-900: #000000;
    --primary-800: #0a0a0a;
    --primary-700: #121212;
    --primary-600: #1a1a1a;
    --primary-500: #222222;
    --primary-400: #2a2a2a;
    --primary-300: #333333;
    --primary-200: #404040;
    --primary-100: #4d4d4d;
    --primary-50: #666666;
    
    --accent-blue: #00d4ff;
    --accent-purple: #8b5cf6;
    --accent-green: #00ff88;
    --accent-pink: #ff0080;
    
    --text-primary: #ffffff;
    --text-secondary: #a8b2d1;
    --text-muted: #6b7688;
    
    --surface-primary: rgba(26, 31, 54, 0.8);
    --surface-secondary: rgba(45, 53, 97, 0.6);
    --surface-accent: rgba(0, 212, 255, 0.1);
    
    --border-primary: rgba(107, 117, 199, 0.2);
    --border-accent: rgba(0, 212, 255, 0.3);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: 
        linear-gradient(135deg, #000000 0%, #0a0a0a 25%, #1a1a2e 50%, #16213e 75%, #0f0f23 100%),
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 0, 128, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
    background-color: #000000;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    position: relative;
    margin: 0;
    padding: 0;
    width: 100%;
    max-width: 100%;
    height: 100%;
    height: 100vh;
    height: 100dvh;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    -webkit-overflow-scrolling: touch;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}

/* Background Effects */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    z-index: -1;
    overflow: hidden;
    background: #000000;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 20%, rgba(0, 212, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(139, 92, 246, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 20% 70%, rgba(255, 0, 128, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 30%, rgba(0, 255, 136, 0.06) 0%, transparent 40%);
    animation: pulse 12s ease-in-out infinite;
}

.radar-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: grid-move 25s linear infinite;
    opacity: 0.6;
}

.floating-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(0, 212, 255, 0.6);
    border-radius: 50%;
    animation: float-particle 8s ease-in-out infinite;
}

.floating-particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
    box-shadow: 
        200px 300px 0 rgba(0, 212, 255, 0.4),
        400px 100px 0 rgba(255, 0, 128, 0.3),
        600px 400px 0 rgba(0, 255, 136, 0.4),
        800px 200px 0 rgba(139, 92, 246, 0.3);
}

.floating-particles::after {
    top: 60%;
    right: 15%;
    animation-delay: 4s;
    background: rgba(139, 92, 246, 0.6);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    background: rgba(12, 18, 33, 0.8);
    border-bottom: 1px solid var(--border-primary);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.radar-icon {
    position: relative;
    width: 32px;
    height: 32px;
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radar-sweep {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: conic-gradient(transparent, var(--accent-blue));
    animation: radar-sweep 2s linear infinite;
}

.radar-dot {
    width: 4px;
    height: 4px;
    background: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-blue);
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.beta-badge {
    font-size: 0.6rem;
    font-weight: 600;
    background: rgba(255, 0, 128, 0.1);
    color: var(--accent-pink);
    margin-left: 0.5rem;
    padding: 0.2rem 0.4rem;
    border: 1px solid var(--accent-pink);
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    padding-top: calc(90px + env(safe-area-inset-top));
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    padding: 0 1rem;
    box-sizing: border-box;
}

.hero-content {
    text-align: center;
    width: 100%;
}

.hero-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    gap: 0.75rem;
}

.hero-logo .brand-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.announcement-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface-accent);
    border: 1px solid var(--border-accent);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-blue);
    margin-bottom: 2rem;
    animation: glow 2s ease-in-out infinite;
}

.badge-icon {
    font-size: 1rem;
}

/* Signup Container */
.signup-container {
    width: 100%;
}

.signup-card {
    background: rgba(26, 31, 54, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(107, 117, 199, 0.2);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.signup-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
}

.card-header {
    margin-bottom: 1.5rem;
    text-align: center;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.card-subtitle {
    color: rgba(168, 178, 209, 0.8);
    font-size: 0.875rem;
}

/* Form Styles */
.signup-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.form-input {
    background: rgba(45, 53, 97, 0.6);
    border: 1px solid rgba(107, 117, 199, 0.3);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    color: #ffffff;
    transition: all 0.2s ease;
    font-family: inherit;
    width: 100%;
}

.form-input:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
    background: rgba(45, 53, 97, 0.8);
}

.form-input::placeholder {
    color: rgba(168, 178, 209, 0.6);
}

.twitter-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.twitter-prefix {
    position: absolute;
    left: 1rem;
    color: rgba(168, 178, 209, 0.8);
    font-weight: 500;
    z-index: 1;
    font-size: 0.95rem;
}

.twitter-input {
    padding-left: 2rem;
}

/* Twitter Verification */
.twitter-verification {
    background: var(--surface-secondary);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-top: var(--space-md);
}

.verification-info {
    display: flex;
    gap: var(--space-md);
}

.info-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--surface-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}

.info-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.info-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: 0.95rem;
}

.tweet-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--accent-blue);
    color: white;
    text-decoration: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--transition-fast);
    margin-bottom: var(--space-lg);
}

.tweet-link:hover {
    background: #00b8e6;
    transform: translateY(-1px);
}

.twitter-icon {
    width: 20px;
    height: 20px;
}

.verify-button {
    background: var(--surface-primary);
    border: 1px solid var(--border-accent);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.verify-button:hover {
    background: var(--surface-secondary);
    border-color: var(--accent-blue);
}

.verify-icon {
    font-size: 1rem;
}

/* Submit Button */
.submit-button {
    background: linear-gradient(135deg, #00d4ff, #8b5cf6);
    border: none;
    color: white;
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    font-family: inherit;
    margin-top: 0.5rem;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 212, 255, 0.4);
}

.submit-button:active {
    transform: translateY(0);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.button-text {
    transition: var(--transition-fast);
}

.button-icon {
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.submit-button:hover .button-icon {
    transform: translateX(2px);
}

/* Disabled Notice */
.disabled-notice {
    text-align: center;
    padding: var(--space-xl);
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.disabled-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    opacity: 0.8;
}

.disabled-notice h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: #ff3b30;
}

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

/* Success Message */
.success-message {
    text-align: center;
    padding: var(--space-xl);
    background: var(--surface-accent);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    margin-top: var(--space-lg);
}

.success-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: white;
}

.success-message h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--accent-blue);
}

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

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

@keyframes radar-sweep {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.3); }
    50% { box-shadow: 0 0 40px rgba(0, 212, 255, 0.6); }
}

@keyframes float-particle {
    0%, 100% { 
        transform: translateY(0px) translateX(0px);
        opacity: 0.6;
    }
    25% { 
        transform: translateY(-20px) translateX(10px);
        opacity: 1;
    }
    50% { 
        transform: translateY(-10px) translateX(-5px);
        opacity: 0.8;
    }
    75% { 
        transform: translateY(-30px) translateX(15px);
        opacity: 0.9;
    }
}

@keyframes confetti-fall {
    0% {
        transform: translateY(-10px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 0.5rem;
        padding-top: calc(70px + env(safe-area-inset-top));
        min-height: 100vh;
        min-height: 100dvh;
        display: flex;
        align-items: flex-start;
        justify-content: center;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .container {
        max-width: 100%;
        width: 100%;
        padding: 0 0.5rem;
        margin: 0;
        box-sizing: border-box;
    }
    
    .signup-card {
        padding: 1rem;
        margin: 0;
        width: 100%;
        border-radius: 12px;
        box-sizing: border-box;
    }
    
    .hero-logo .brand-text {
        font-size: 1.125rem;
    }
    
    .verification-info {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .info-icon {
        align-self: center;
    }
    
    .nav-container {
        padding: 0 0.5rem;
        height: 60px;
        box-sizing: border-box;
    }
    
    .navbar {
        height: 60px;
    }
    
    .announcement-badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
        margin-bottom: 1.5rem;
    }
    
    /* Mobile optimizations */
    body {
        background-attachment: scroll;
        background-color: #000000 !important;
    }
    
    .background-container {
        background-attachment: scroll;
        background-color: #000000 !important;
    }
    
    .floating-particles::before {
        box-shadow: 
            100px 150px 0 rgba(0, 212, 255, 0.3),
            200px 50px 0 rgba(255, 0, 128, 0.2),
            300px 200px 0 rgba(0, 255, 136, 0.3),
            400px 100px 0 rgba(139, 92, 246, 0.2);
    }
    
    .radar-grid {
        background-size: 30px 30px;
        opacity: 0.4;
    }
    
    * {
        -webkit-tap-highlight-color: transparent;
    }
    
    html, body, .background-container, .hero-section {
        background-color: #000000 !important;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 0.25rem;
        padding-top: calc(60px + env(safe-area-inset-top));
        min-height: 100vh;
        min-height: 100dvh;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .hero-logo .brand-text {
        font-size: 1rem;
    }
    
    .signup-card {
        padding: 0.75rem;
        margin: 0;
        width: 100%;
        box-sizing: border-box;
    }
    
    .radar-icon {
        width: 24px;
        height: 24px;
    }
    
    .form-input {
        padding: 0.75rem;
        font-size: 16px;
        width: 100%;
        box-sizing: border-box;
    }
    
    .twitter-input {
        padding-left: 1.5rem;
    }
    
    .twitter-prefix {
        left: 0.75rem;
        font-size: 16px;
    }
    
    .nav-container {
        padding: 0 0.25rem;
        height: 50px;
        box-sizing: border-box;
    }
    
    .navbar {
        height: 50px;
    }
    
    .announcement-badge {
        font-size: 0.7rem;
        padding: 0.3rem 0.6rem;
        margin-bottom: 1rem;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
    
    .card-subtitle {
        font-size: 0.8rem;
    }
    
    .container {
        padding: 0 0.25rem;
    }
    
    /* iPhone specific fixes */
    html, body {
        position: fixed;
        width: 100%;
        height: 100%;
        overflow: hidden;
        background-color: #000000 !important;
        touch-action: manipulation;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        -webkit-overflow-scrolling: touch;
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    
    .hero-section {
        position: relative;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        height: 100vh;
        height: 100dvh;
        height: -webkit-fill-available;
    }
    
    * {
        background-color: transparent !important;
    }
    
    html, body, .background-container {
        background-color: #000000 !important;
    }
}

/* iOS Safari specific fixes */
@supports (-webkit-touch-callout: none) {
    .hero-section {
        min-height: -webkit-fill-available;
    }
    
    body {
        min-height: -webkit-fill-available;
        background-color: #000000 !important;
    }
    
    .background-container {
        height: -webkit-fill-available;
        background-color: #000000 !important;
    }
    
    html {
        height: -webkit-fill-available;
        background-color: #000000 !important;
    }
    
    * {
        background-color: transparent;
    }
    
    body, html, .background-container {
        background-color: #000000 !important;
    }
}