/* ===== CSS Variables ===== */
:root {
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-surface: #1a1a24;
    --color-surface-hover: #22222e;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-tertiary: rgba(255, 255, 255, 0.5);
    
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-secondary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-accent: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    --color-primary: #667eea;
    --color-primary-light: #8b9eff;
    --color-accent: #f093fb;
    
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --shadow-glow: 0 0 60px rgba(102, 126, 234, 0.3);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.2);
    
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Animated Background ===== */
.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-primary);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-secondary);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--gradient-accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

.shape-4 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    top: 30%;
    left: 10%;
    animation-delay: -15s;
}

.shape-5 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    bottom: 20%;
    right: 15%;
    animation-delay: -8s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.header {
    padding: 32px 0;
    display: flex;
    justify-content: center;
    animation: fadeInDown 0.8s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
}

.logo-icon.small {
    width: 28px;
    height: 28px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ===== Hero Section ===== */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 0 60px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out 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(2.5rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease both;
}

.title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.title-line:nth-child(2) {
    animation-delay: 0.3s;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    max-width: 580px;
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* ===== Signup Form ===== */
.signup-section {
    width: 100%;
    max-width: 480px;
    animation: fadeInUp 0.8s ease 0.5s both;
}

.signup-form {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.input-wrapper {
    flex: 1;
    position: relative;
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-tertiary);
    pointer-events: none;
}

.signup-form input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--color-text-primary);
    outline: none;
    transition: var(--transition-fast);
}

.signup-form input::placeholder {
    color: var(--color-text-tertiary);
}

.signup-form input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 28px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: var(--transition-medium);
    white-space: nowrap;
}

.btn-primary svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-primary:active {
    transform: translateY(0);
}

.signup-note {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* ===== Success Message ===== */
.success-message {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 32px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-md);
    color: #22c55e;
    font-weight: 500;
    animation: fadeInUp 0.5s ease;
}

.success-message.show {
    display: flex;
}

.success-message svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* ===== Features Preview ===== */
.features-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 80px;
    width: 100%;
    max-width: 900px;
}

.feature-card {
    padding: 32px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-medium);
    animation: fadeInUp 0.8s ease both;
}

.feature-card:nth-child(1) { animation-delay: 0.6s; }
.feature-card:nth-child(2) { animation-delay: 0.7s; }
.feature-card:nth-child(3) { animation-delay: 0.8s; }

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    padding: 14px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    color: white;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    line-height: 1.5;
}

/* ===== Footer ===== */
.footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--color-border);
    margin-top: auto;
    animation: fadeInUp 0.8s ease 0.9s both;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.footer-brand {
    max-width: 280px;
}

.logo-small {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.logo-small span {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.footer-address {
    display: flex;
    gap: 12px;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.footer-address svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-address address {
    font-style: normal;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-hover);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .features-preview {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 60px;
    }
    
    .feature-card {
        padding: 24px 20px;
    }
    
    .signup-form {
        flex-direction: column;
    }
    
    .btn-primary {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 32px;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-address {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-address address {
        text-align: center;
    }
    
    .hero-description {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .header {
        padding: 24px 0;
    }
    
    .badge {
        font-size: 0.8125rem;
        padding: 6px 14px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .signup-form input,
    .btn-primary {
        padding: 14px 20px;
    }
    
    .signup-form input {
        padding-left: 44px;
    }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-shape {
        animation: none;
    }
}