:root {
    --white: #FFFFFF;
    --ice-blue: #F4F7F9;
    --slate-blue: #2C3E50; /* Primary Brand Blue */
    --accent-blue: #5D8AA8;
    --silver: #D1D5D8;
    --text-body: #444444;
}

/* Global Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-body);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, .logo {
    color: var(--slate-blue);
    font-weight: 600;
}

.italic {
    font-family: 'Playfair Display', serif;
    font-style: italic;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
    background: var(--white);
    border-bottom: 1px solid var(--ice-blue);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 5px;
    text-decoration: none;
    color: var(--slate-blue);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-body);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    transition: 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-blue);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--slate-blue);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 70vh;
    background-color: var(--ice-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 10%;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--slate-blue);
    color: var(--white);
    text-decoration: none;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
    transition: 0.3s ease;
}

.btn:hover {
    background: var(--accent-blue);
}

.btn-full {
    width: 100%;
    text-align: center;
}

/* Product Grid (The Formula Page) */
.product-reveal {
    min-height: 90vh;
    padding: 5% 0;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.product-image-container {
    text-align: center;
}

.product-image {
    max-width: 90%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.05));
}

.formula-subtitle {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 1.3rem;
    color: var(--accent-blue);
    margin: 10px 0;
}

.label {
    display: inline-block;
    background: var(--ice-blue);
    padding: 5px 12px;
    font-size: 0.7rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

/* Specs List */
.specs {
    list-style: none;
    margin: 2rem 0;
}

.specs li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.check {
    color: var(--accent-blue);
    margin-right: 12px;
    font-weight: bold;
}

/* Waitlist UI — inline (Formula page) */
.waitlist-integrated {
    margin-top: 20px;
    padding: 25px;
    background: var(--ice-blue);
    border: 1px solid var(--silver);
    border-radius: 4px;
    position: relative;
}

/* Waitlist UI — modal overlay (Home page) */
.waitlist-modal {
    position: fixed;
    inset: 0;
    background: rgba(44, 62, 80, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1rem;
}

.waitlist-modal .form-wrapper {
    background: var(--white);
    padding: 3rem;
    max-width: 480px;
    width: 100%;
    position: relative;
}

.waitlist-modal h2 {
    margin-bottom: 0.5rem;
}

.waitlist-modal p {
    margin-bottom: 1.5rem;
    color: var(--text-body);
}

.hidden { display: none; }

.standard-form {
    display: flex;
    gap: 10px;
}

.standard-form input {
    flex-grow: 1;
    padding: 12px;
    border: 1px solid var(--silver);
    font-family: inherit;
}

.close-form {
    position: absolute;
    top: 5px;
    right: 10px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--silver);
}

/* About / Story Styling */
.about-content, .home-philosophy {
    padding: 100px 10%;
    text-align: center;
}

.elaborate-story {
    padding: 80px 10%;
}

.divider-line {
    border: none;
    border-top: 1px solid var(--silver);
    margin: 60px auto;
    max-width: 700px;
}

.text-right {
    text-align: right;
}

.content-narrow {
    max-width: 700px;
    margin: 0 auto;
}

.story-block {
    margin-bottom: 60px;
}

/* Responsive — Tablet & Mobile */
@media (max-width: 768px) {
    /* Nav: show hamburger, hide links by default */
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--ice-blue);
        padding: 1.5rem 10%;
        gap: 1.5rem;
        z-index: 999;
    }

    .nav-links.open {
        display: flex;
    }

    .navbar {
        padding: 1.2rem 6%;
    }

    /* Hero */
    .hero {
        height: auto;
        min-height: 60vh;
        padding: 4rem 6%;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    /* Sections */
    .about-content,
    .home-philosophy {
        padding: 60px 6%;
    }

    .elaborate-story {
        padding: 60px 6%;
    }

    .text-right {
        text-align: left;
    }

    /* Product grid */
    .product-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .specs li {
        justify-content: center;
    }

    /* Form */
    .standard-form {
        flex-direction: column;
    }

    /* Modal */
    .waitlist-modal .form-wrapper {
        padding: 2rem 1.5rem;
    }

    /* FAQ */
    .cta-block {
        padding: 30px 20px;
    }
}

/* Responsive — Small phones */
@media (max-width: 480px) {
    .navbar {
        padding: 1rem 5%;
    }

    .hero h1 {
        font-size: 1.9rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

    .btn {
        padding: 0.85rem 1.75rem;
        font-size: 0.75rem;
    }

    .formula-subtitle {
        font-size: 1.1rem;
    }
}
/* FAQ Specific Styling */
.faq-container {
    text-align: left;
    margin-top: 50px;
}

.faq-item {
    margin-bottom: 40px;
    border-bottom: 1px solid var(--ice-blue);
    padding-bottom: 20px;
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--slate-blue);
}

.faq-item p {
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.8;
}

.cta-block {
    margin-top: 60px;
    padding: 40px;
    background-color: var(--ice-blue);
}

.cta-block p {
    margin-bottom: 20px;
    font-weight: 600;
}