/* ==========================================================================
   GABBANO LOUNGES - DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

/* 1. VARIÁVEIS GLOBAIS & RESET */
:root {
    --color-bg-pure: #000000;
    --color-bg-dark: #070707;
    --color-bg-card: rgba(255, 255, 255, 0.02);
    --color-bg-card-hover: rgba(255, 255, 255, 0.05);
    
    /* Silver & White Palette */
    --color-silver-light: #ffffff;
    --color-silver-primary: #e5e5e7;
    --color-silver-dark: #a1a1a6;
    
    --color-text-white: #ffffff;
    --color-text-gray: #a0a0a0;
    --color-text-muted: #666666;
    
    --font-serif: 'Cinzel', serif;
    --font-sans: 'Montserrat', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --border-glass: 1px solid rgba(255, 255, 255, 0.06);
    --border-silver: 1px solid rgba(255, 255, 255, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-pure);
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-pure);
    color: var(--color-text-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* 2. PARTÍCULAS E ELEMENTOS DE FUNDO */
.bg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.02) 0%, rgba(0, 0, 0, 0) 70%),
                linear-gradient(180deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 1) 100%);
    pointer-events: none;
    z-index: 1;
}

.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: radial-gradient(circle, var(--color-silver-light) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    opacity: 0.25;
    animation: floatUp 20s infinite linear;
}

@keyframes floatUp {
    0% {
        transform: translateY(105vh) translateX(0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 0.35;
    }
    90% {
        opacity: 0.35;
    }
    100% {
        transform: translateY(-5vh) translateX(50px) scale(0.5);
        opacity: 0;
    }
}

/* 3. HEADER (CABEÇALHO) */
.main-header {
    position: relative;
    z-index: 10;
    width: 100%;
    padding: 2rem 5%;
    background: linear-gradient(180deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
}

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

.brand-logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
}

.brand-logo-container:hover .brand-logo {
    transform: rotate(360deg);
    border-color: var(--color-silver-light);
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.3);
}

.brand-name {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 5px;
    background: linear-gradient(135deg, var(--color-text-white) 40%, var(--color-silver-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: var(--border-glass);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--color-text-gray);
    text-transform: uppercase;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #25D366;
    border-radius: 50%;
    box-shadow: 0 0 8px #25D366;
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

/* 4. HERO SECTION (CONTEÚDO PRINCIPAL) */
.hero-section {
    position: relative;
    z-index: 5;
    flex-grow: 1;
    display: flex;
    align-items: center;
    padding: 4rem 5%;
}

.hero-container {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-tagline {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 6px;
    color: var(--color-silver-dark);
    margin-bottom: 1.5rem;
    font-weight: 600;
    opacity: 0.9;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: 8px;
    line-height: 1.1;
    margin-bottom: 0.5rem;
    background: linear-gradient(180deg, #ffffff 60%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--color-silver-primary);
    letter-spacing: 3px;
    margin-bottom: 3.5rem;
    font-weight: 400;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1rem;
    width: 80%;
    max-width: 600px;
}

/* 5. BOTÃO DE AÇÃO (CTA - WHATSAPP) */
.cta-container {
    margin-bottom: 5rem;
    width: 100%;
    display: flex;
    justify-content: center;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: linear-gradient(135deg, var(--color-silver-light) 0%, var(--color-silver-primary) 50%, var(--color-silver-dark) 100%);
    color: var(--color-bg-pure);
    text-decoration: none;
    padding: 1.25rem 2.5rem;
    border-radius: 50px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1),
                inset 0 1px 0px rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
    cursor: pointer;
}

/* Efeito de brilho reflexivo que passa pelo botão */
.cta-button::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 30%;
    height: 200%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.4) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: rotate(25deg);
    animation: reflection 4s infinite ease-in-out;
}

@keyframes reflection {
    0% { left: -60%; }
    30% { left: 140%; }
    100% { left: 140%; }
}

.cta-button:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.25),
                inset 0 1px 0px rgba(255, 255, 255, 0.6);
    background: linear-gradient(135deg, #ffffff 0%, var(--color-silver-light) 100%);
}

.cta-button:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.15);
}

.whatsapp-icon {
    transition: transform 0.5s ease;
}

.cta-button:hover .whatsapp-icon {
    transform: rotate(15deg) scale(1.1);
}

/* 6. GRID DE CARACTERÍSTICAS (BENEFÍCIOS) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    width: 100%;
    max-width: 900px;
    margin-top: 2rem;
}

.feature-card {
    background: var(--color-bg-card);
    border: var(--border-glass);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(0, 0, 0, 0) 100%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-8px);
    background: var(--color-bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6),
                0 0 30px rgba(255, 255, 255, 0.02);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1.25rem;
    filter: drop-shadow(0 4px 8px rgba(255, 255, 255, 0.15));
    transition: transform 0.5s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(5deg);
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
    color: var(--color-text-white);
}

.feature-card p {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-text-gray);
    font-weight: 300;
}

/* 7. FOOTER (RODAPÉ) */
.main-footer {
    position: relative;
    z-index: 10;
    padding: 3rem 5%;
    border-top: var(--border-glass);
    text-align: center;
    background-color: var(--color-bg-dark);
}

.main-footer p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* 8. MEDIA QUERIES (RESPONSIVIDADE) */

/* Dispositivos Médios (Tablets) */
@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 500px;
    }
    
    .hero-subtitle {
        width: 100%;
        margin-bottom: 2.5rem;
    }
}

/* Dispositivos Pequenos (Celulares) */
@media (max-width: 600px) {
    .main-header {
        padding: 1.5rem 5%;
    }
    
    .brand-name {
        font-size: 1.3rem;
        letter-spacing: 3px;
    }
    
    .brand-logo {
        width: 40px;
        height: 40px;
    }
    
    .status-badge {
        padding: 0.4rem 0.8rem;
        font-size: 0.65rem;
    }
    
    .hero-section {
        padding: 2.5rem 5% 4rem 5%;
    }
    
    .hero-tagline {
        font-size: 0.75rem;
        letter-spacing: 4px;
        margin-bottom: 1rem;
    }
    
    .hero-title {
        letter-spacing: 4px;
        margin-bottom: 0.25rem;
    }
    
    .hero-subtitle {
        letter-spacing: 2px;
        margin-bottom: 2.5rem;
        padding-bottom: 0.75rem;
    }
    
    .cta-container {
        margin-bottom: 3.5rem;
    }
    
    .cta-button {
        padding: 1.1rem 2rem;
        font-size: 0.95rem;
        width: 100%;
        max-width: 320px;
    }
    
    .feature-card {
        padding: 2rem 1.5rem;
    }
}

/* Ajuste de altura para telas verticais pequenas ou mobiles em landscape */
@media (max-height: 700px) and (min-width: 600px) {
    .hero-section {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
    .cta-container {
        margin-bottom: 3rem;
    }
}