/* ==============================
   ROOT VARIABLES
================================= */

:root {
    --green-dark: #1f3d2b;
    --green-medium: #3f6b4f;
    --green-light: #5f8f6b;
    --bg-soft: #f4f8f5;
    --text-muted: #5f6f63;
    --card-bg: rgba(255, 255, 255, 0.75);
}

/* ==============================
   GLOBAL RESET
================================= */

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

html {
  font-size: 16px;
  scrollbar-gutter: stable;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at top left, #e8f2ec, #f7faf8 60%);
    color: var(--green-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==============================
   HEADER (DESKTOP)
================================= */

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 60px;
    position: relative;
}

.brand {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    letter-spacing: 0.5px;
}

/* Desktop nav */
nav {
    display: flex;
    gap: 28px;
}

nav a {
    text-decoration: none;
    color: var(--green-dark);
    font-weight: 500;
    position: relative;
    transition: 0.3s ease;
}

nav a:hover {
    color: var(--green-medium);
}

/* ==============================
   HAMBURGER (DEFAULT HIDDEN)
================================= */

.nav-toggle {
    display: none;
    width: 32px;
    height: 24px;
    position: relative;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
}

/* Hamburger lines */
.nav-toggle span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--green-dark);
    transition: 0.3s ease;
}

/* Line positions */
.nav-toggle span:nth-child(1) {
    top: 0;
}

.nav-toggle span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.nav-toggle span:nth-child(3) {
    bottom: 0;
}

/* X animation */
.nav-toggle.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    top: 50%;
    bottom: auto;
    transform: translateY(-50%) rotate(-45deg);
}

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

footer {
    text-align: center;
    padding: 25px 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

footer a {
    color: var(--green-medium);
    text-decoration: none;
    margin: 0 8px;
    transition: 0.3s ease;
}

footer a:hover {
    color: var(--green-dark);
}

/* ==============================
   MOBILE
================================= */

@media (max-width: 768px) {

    /* Header layout change */
    header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 15px;
        padding: 20px;
    }

    .brand {
        width: 100%;
        text-align: center;
        font-size: 1.2rem;
        line-height: 1.3;
    }

    /* Show hamburger */
    .nav-toggle {
        display: block;
    }

    /* Hide nav initially */
    header nav {
        display: none;
        flex-direction: column;
        align-items: center;
        gap: 20px;
        padding: 20px 0;
        width: 100%;
    }

    /* Show when open */
    header nav.open {
        display: flex;
    }

}