/* ===== CSS Variables ===== */
:root {
    --color-bg: #0a0a0b;
    --color-bg-elevated: #141416;
    --color-surface: #1a1a1e;
    --color-border: #2a2a30;
    
    --color-text: #f5f5f7;
    --color-text-muted: #8a8a8e;
    --color-text-subtle: #5a5a5e;
    
    --color-accent: #00d4aa;
    --color-accent-glow: rgba(0, 212, 170, 0.3);
    --color-accent-hover: #00eebb;
    
    --color-secondary: #ff6b35;
    
    --font-display: 'Anybody', sans-serif;
    --font-body: 'DM Sans', system-ui, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
}

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

/* ===== Background Effects ===== */
.bg-pattern {
    position: fixed;
    inset: 0;
    background-image: 
        radial-gradient(circle at 1px 1px, var(--color-border) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

.gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-accent-glow), transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15), transparent 70%);
    bottom: -100px;
    left: -100px;
    animation-delay: -10s;
}

@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(10px, 10px) scale(1.02); }
}

/* ===== Layout ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* ===== Header & Logo ===== */
.header {
    text-align: center;
    animation: fadeInDown 0.8s ease-out;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.logo-mark {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    border-radius: var(--radius-md);
    transform: rotate(0deg);
    transition: transform var(--transition-base);
}

.logo-mark:hover {
    transform: rotate(30deg);
}

.logo-icon {
    font-size: 2rem;
    color: var(--color-bg);
}

.logo-text {
    font-family: var(--font-display);
    font-size: clamp(2rem, 8vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1;
}

.logo-precision {
    color: var(--color-text);
}

.logo-press {
    color: var(--color-accent);
}

.tagline {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 500;
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 12vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-line {
    display: block;
}

.hero-accent {
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== Features ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.feature {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.feature:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -20px var(--color-accent-glow);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.feature h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.feature p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ===== Signup Section ===== */
.signup {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.signup-content {
    background: linear-gradient(135deg, var(--color-surface), var(--color-bg-elevated));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.signup-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
}

.signup-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.signup-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Form ===== */
.signup-form {
    max-width: 450px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 6px;
    transition: border-color var(--transition-base);
}

.form-group:focus-within {
    border-color: var(--color-accent);
}

.form-group input[type="email"] {
    flex: 1;
    background: transparent;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    color: var(--color-text);
    font-family: var(--font-body);
    outline: none;
    min-width: 0;
}

.form-group input::placeholder {
    color: var(--color-text-subtle);
}

.btn-submit {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-accent), #00b894);
    color: var(--color-bg);
    border: none;
    border-radius: var(--radius-full);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-submit:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px -10px var(--color-accent-glow);
}

.btn-submit:active {
    transform: scale(0.98);
}

.btn-icon {
    transition: transform var(--transition-fast);
}

.btn-submit:hover .btn-icon {
    transform: translateX(4px);
}

.signup-note {
    font-size: 0.8rem;
    color: var(--color-text-subtle);
    margin-top: var(--spacing-sm);
}

/* ===== Success Message ===== */
.success-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    animation: fadeInUp 0.4s ease-out;
}

.success-icon {
    width: 24px;
    height: 24px;
    background: var(--color-accent);
    color: var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.success-message p {
    color: var(--color-accent);
    font-weight: 500;
}

.hidden {
    display: none !important;
}

/* ===== Footer ===== */
.footer {
    margin-top: auto;
    text-align: center;
    padding-top: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.social-link:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.copyright {
    font-size: 0.85rem;
    color: var(--color-text-subtle);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .container {
        padding: var(--spacing-lg) var(--spacing-sm);
        gap: var(--spacing-lg);
    }
    
    .form-group {
        flex-direction: column;
        border-radius: var(--radius-md);
        padding: var(--spacing-xs);
    }
    
    .form-group input[type="email"] {
        text-align: center;
    }
    
    .btn-submit {
        justify-content: center;
        border-radius: var(--radius-md);
    }
    
    .signup-content {
        padding: var(--spacing-lg);
    }
    
    .features {
        grid-template-columns: 1fr;
    }
}

/* ===== Loading State ===== */
.btn-submit.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn-submit.loading .btn-text {
    visibility: hidden;
}

.btn-submit.loading .btn-icon {
    position: absolute;
    animation: spin 1s linear infinite;
}

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