/* ── Global ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: rgba(212, 165, 116, 0.3);
    color: #064e3b;
}

/* ── Navigation ── */
#nav {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#nav.scrolled {
    background: rgba(253, 252, 248, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(6, 78, 59, 0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #d4a574;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* ── Mobile Menu ── */
.mobile-link {
    position: relative;
}

#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

/* ── Floating Cards ── */
.floating-card-1 {
    animation: floatCard1 6s ease-in-out infinite;
}

.floating-card-2 {
    animation: floatCard2 7s ease-in-out infinite;
}

@keyframes floatCard1 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
}

@keyframes floatCard2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
}

/* ── Scroll Reveal ── */
.reveal-up {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(32px);
    }

    .reveal-left {
        opacity: 0;
        transform: translateX(-32px);
    }

    .reveal-right {
        opacity: 0;
        transform: translateX(32px);
    }

    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: translate(0, 0);
    }
}

/* ── Service Cards ── */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #d4a574, #c48850);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

/* ── Buttons ── */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::after {
    opacity: 1;
}

/* ── Divider ── */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 165, 116, 0.3), transparent);
}

/* ── Form ── */
.form-input {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
    border-color: #d4a574;
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.15);
    outline: none;
}

/* ── Success Message ── */
.success-message {
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.2;
    }

    #top h1 {
        font-size: 2.75rem;
    }

    .floating-card-1,
    .floating-card-2 {
        display: none;
    }
}

@media (max-width: 640px) {
    #top h1 {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 2.25rem;
    }
}