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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #f5f2eb;
}
::-webkit-scrollbar-thumb {
    background: #8fb5a0;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4a7a5e;
}

/* ── Scroll Animation Line ── */
@keyframes scrollLine {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}
.scroll-line {
    animation: scrollLine 1.5s ease-in-out infinite;
}

/* ── Reveal Animations ── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Hero Animations ── */
.hero-subtitle {
    animation: slideUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s both;
}

.hero-title {
    animation: slideUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s both;
}

.hero-desc {
    animation: slideUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.6s both;
}

.hero-cta {
    animation: slideUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.8s both;
}

.hero-info {
    animation: slideUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 1s both;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Navbar ── */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(245, 242, 235, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(26, 60, 52, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

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

/* ── Mobile Menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.menu-line {
    left: 50%;
    transform: translateX(-50%);
}

.line-1 { top: 35%; }
.line-2 { top: 50%; }
.line-3 { top: 65%; }

.menu-btn.active .line-1 {
    top: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

.menu-btn.active .line-2 {
    opacity: 0;
}

.menu-btn.active .line-3 {
    top: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    width: 1.5rem;
}

/* ── Service Cards ── */
.service-card {
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover {
    transform: translateY(-4px);
}

/* ── Form Inputs ── */
input::placeholder,
textarea::placeholder {
    color: #b8cfc3;
}

input:focus,
textarea:focus {
    border-color: #4a7a5e !important;
}

/* ── Mobile Menu Links ── */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ── Selection ── */
::selection {
    background: #d4c5a9;
    color: #1a3c34;
}

/* ── Focus Visible ── */
:focus-visible {
    outline: 2px solid #4a7a5e;
    outline-offset: 2px;
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}