:root {
    --delta-orange: #EC7123;
    --delta-red: #A71D22;
    --delta-white: #FFFFFF;
    --delta-dark: #333333;
    --delta-light: #F5F5F5;
    --delta-soft: #FFF7F2;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--delta-white);
    color: var(--delta-dark);
    font-family: "Inter", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container-shell {
    width: 100%;
    max-width: 80rem;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.section-title {
    color: var(--delta-dark);
    font-size: 1.875rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.section-copy {
    max-width: 48rem;
    margin-top: 1rem;
    color: rgba(51, 51, 51, 0.75);
    font-size: 1rem;
    line-height: 1.75;
}

.card-glass {
    background: var(--delta-white);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 9999px;
    background: var(--delta-orange);
    padding: 0.75rem 1.5rem;
    color: var(--delta-white);
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 18px 40px rgba(236, 113, 35, 0.22);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.btn-primary:hover {
    background: var(--delta-red);
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid rgba(236, 113, 35, 0.2);
    border-radius: 9999px;
    background: var(--delta-white);
    padding: 0.75rem 1.5rem;
    color: var(--delta-dark);
    font-size: 0.875rem;
    font-weight: 600;
    transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.btn-secondary:hover {
    background: var(--delta-light);
    border-color: var(--delta-red);
    transform: translateY(-2px);
}

.reveal {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.show {
    opacity: 1;
    transform: translateY(0);
}

.hero-slider {
    position: relative;
    min-height: 88vh;
    background: var(--delta-dark);
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transform: scale(1.02);
    transition: opacity 0.8s ease, transform 0.8s ease, visibility 0.8s ease;
}

.hero-slide.is-active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.hero-slide-media {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-dot {
    width: 0.95rem;
    height: 0.95rem;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.18);
    padding: 0;
    backdrop-filter: blur(12px);
    transition: background-color 0.3s ease, transform 0.3s ease, border-color 0.3s ease, width 0.3s ease;
}

.hero-dot:hover,
.hero-dot.is-active {
    width: 2.25rem;
    background: var(--delta-white);
    border-color: var(--delta-white);
    transform: translateY(-1px);
}

.shadow-glow {
    box-shadow: 0 24px 60px rgba(236, 113, 35, 0.18);
}

.floating-whatsapp {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 60;
    display: inline-flex;
    align-items: center;
    border-radius: 9999px;
    background: linear-gradient(135deg, #25d366 0%, #1ea952 100%);
    color: var(--delta-white);
    box-shadow: 0 20px 45px rgba(37, 211, 102, 0.28);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.floating-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 24px 55px rgba(37, 211, 102, 0.35);
}

.floating-whatsapp-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.16);
}

.floating-whatsapp-icon svg {
    width: 1.35rem;
    height: 1.35rem;
}

.floating-whatsapp-label {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

@media (min-width: 640px) {
    .container-shell {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }

    .section-copy {
        font-size: 1.125rem;
    }

    .hero-slider {
        min-height: 92vh;
    }
}

@media (min-width: 1024px) {
    .container-shell {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

@media (max-width: 640px) {
    .floating-whatsapp {
        right: 0.85rem;
        bottom: 0.85rem;
        padding: 0.72rem 0.85rem;
    }

    .floating-whatsapp-label {
        display: none;
    }
}