/* ============================================
   DESIGN MODERNO ROXO - LINK-IN-BIO
   Mobile-First | Elegância Premium
   ============================================ */

:root {
    /* Cores Primárias */
    --color-primary: #8b5cf6;
    --color-primary-light: #a78bfa;
    --color-primary-dark: #7c3aed;
    --color-accent: #d946ef;
    --color-accent-light: #ec4899;
    
    /* Cores de Fundo */
    --color-bg-dark: #0f172a;
    --color-bg-darker: #0a0f1f;
    --color-bg-card: rgba(30, 41, 59, 0.6);
    
    /* Cores de Texto */
    --color-text-primary: #ffffff;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Efeitos */
    --color-glow: rgba(139, 92, 246, 0.3);
    --color-glow-accent: rgba(217, 70, 239, 0.3);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #d946ef 100%);
    --gradient-primary-hover: linear-gradient(135deg, #a78bfa 0%, #ec4899 100%);
    
    /* Espaçamento */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Transições */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s ease-out;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-dark);
    background-image: 
        radial-gradient(circle at 0% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(217, 70, 239, 0.15) 0%, transparent 50%);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden;
}

/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */

.page-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-md);
    animation: fadeInPage var(--transition-slow);
}

.content-wrapper {
    width: 100%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

/* ============================================
   PÁGINA 1 - ENTRADA
   ============================================ */

.page-1 .header-section {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.profile-container {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid transparent;
    background: var(--gradient-primary);
    background-clip: padding-box;
    box-shadow: 0 0 30px var(--color-glow), 0 0 60px var(--color-glow-accent);
    animation: profilePulse 3s ease-in-out infinite;
}

.brand-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.brand-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-regular);
    max-width: 280px;
    line-height: 1.5;
}

/* ============================================
   PÁGINA 2 - TRANSIÇÃO COM ANIMAÇÃO
   ============================================ */

.page-2 .loading-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.spinner-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
}

.spinner {
    width: 64px;
    height: 64px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spinnerRotate 1.2s cubic-bezier(0.5, 0.1, 0.4, 0.9) infinite;
    box-shadow: 0 0 20px var(--color-glow), inset 0 0 20px var(--color-glow);
}

.loading-text {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    text-shadow: 0 0 10px rgba(217, 70, 239, 0.4);
    animation: textGlow 2s ease-in-out infinite;
}

.page-2 .transition-content {
    background: var(--color-bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideUpFade var(--transition-slow);
}

.transition-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.025em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.transition-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 280px;
    margin: 0;
}

/* ============================================
   PÁGINA 3 - CONTEÚDO FINAL
   ============================================ */

.page-3 .header-section {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.page-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.page-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-regular);
    max-width: 280px;
    line-height: 1.5;
    margin: 0;
}

.navigation-section {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

/* ============================================
   CONTEÚDO PRINCIPAL
   ============================================ */

.main-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

/* ============================================
   BOTÕES E LINKS
   ============================================ */

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 18px var(--spacing-md);
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    text-decoration: none;
    border-radius: 16px;
    font-weight: var(--font-weight-bold);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-smooth);
    box-shadow: 0 10px 15px -3px var(--color-glow);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px var(--color-glow), 0 0 30px var(--color-glow-accent);
    background: var(--gradient-primary-hover);
}

.cta-button:active {
    transform: translateY(-2px);
}

.cta-button.primary {
    background: var(--gradient-primary);
}

.cta-button.secondary {
    background: rgba(139, 92, 246, 0.2);
    border: 2px solid var(--color-primary);
    color: var(--color-text-primary);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.cta-button.secondary:hover {
    background: rgba(139, 92, 246, 0.3);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.4);
}

.cta-button.highlight {
    background: var(--gradient-primary);
    font-size: 1.05rem;
    box-shadow: 0 15px 25px -5px var(--color-glow), 0 0 40px var(--color-glow-accent);
}

.cta-button.highlight:hover {
    box-shadow: 0 25px 35px -5px var(--color-glow), 0 0 50px var(--color-glow-accent);
}

.cta-button.pulse {
    animation: buttonPulse 2s ease-in-out infinite;
}

.back-link {
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
    cursor: pointer;
    display: inline-block;
}

.back-link:hover {
    color: var(--color-text-primary);
    text-decoration: underline;
}

/* ============================================
   FOOTER
   ============================================ */

.footer-section {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-lg);
}

.footer-section p {
    margin: 0;
}

/* ============================================
   ANIMAÇÕES
   ============================================ */

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

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

@keyframes profilePulse {
    0%, 100% {
        box-shadow: 0 0 30px var(--color-glow), 0 0 60px var(--color-glow-accent);
    }
    50% {
        box-shadow: 0 0 40px var(--color-glow), 0 0 80px var(--color-glow-accent);
    }
}

@keyframes buttonPulse {
    0%, 100% {
        box-shadow: 0 10px 15px -3px var(--color-glow);
    }
    50% {
        box-shadow: 0 10px 30px 5px var(--color-glow), 0 0 20px var(--color-glow-accent);
    }
}

@keyframes spinnerRotate {
    to {
        transform: rotate(360deg);
    }
}

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(217, 70, 239, 0.4);
    }
    50% {
        text-shadow: 0 0 20px rgba(217, 70, 239, 0.8);
    }
}

/* ============================================
   RESPONSIVIDADE - MOBILE FIRST
   ============================================ */

/* Tablets (640px+) */
@media (min-width: 640px) {
    .brand-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .transition-title {
        font-size: 1.75rem;
    }
    
    .content-wrapper {
        gap: var(--spacing-xl);
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .page-container {
        padding: var(--spacing-xl);
    }
    
    .content-wrapper {
        max-width: 500px;
    }
    
    .profile-container {
        width: 140px;
        height: 140px;
    }
    
    .brand-title {
        font-size: 2.25rem;
    }
    
    .page-title {
        font-size: 2.25rem;
    }
}

/* ============================================
   ACESSIBILIDADE
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible para Acessibilidade */
.cta-button:focus-visible,
.back-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}