:root {
    /* Brown, White, Grey Theme - Light Mode */
    --bg-primary: #F7F5F2;    /* Soft Warm Off-White */
    --bg-secondary: #FFFFFF;
    
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-border: #E6E2DE;
    --card-blur: 20px;
    
    --text-primary: #4A4036;  /* Dark Brown/Grey */
    --text-secondary: #8C8480; /* Muted warmth */
    
    --accent-primary: #8D6E63; /* Earthy Brown */
    --accent-gradient: linear-gradient(135deg, #8D6E63 0%, #BCAAA4 100%);
    --accent-glow: rgba(141, 110, 99, 0.3);
    
    --input-bg: #FFFFFF;
    --hover-bg: rgba(141, 110, 99, 0.08);

    --font-main: 'Inter', sans-serif;
    --transition-speed: 0.4s;
    --ease-elastic: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
    background: var(--bg-primary);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.app-header {
    padding: 2rem;
    display: flex;
    justify-content: center;
    position: absolute;
    width: 100%;
    top: 0;
    z-index: 100;
}

.logo {
    font-weight: 900;
    font-size: 1.75rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    text-shadow: 0 0 30px rgba(141, 110, 99, 0.2);
}

#main-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Glass Components */
.card, .option-card {
    background: var(--card-bg);
    backdrop-filter: blur(var(--card-blur));
    -webkit-backdrop-filter: blur(var(--card-blur));
    border: 1px solid var(--card-border);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);
    color: var(--text-primary);
}

.card {
    padding: 3rem;
    margin-bottom: 2rem;
    transition: transform var(--transition-speed);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    font-size: 1.125rem;
    transition: all var(--transition-speed) var(--ease-elastic);
    text-decoration: none;
    box-shadow: 0 10px 20px -10px var(--accent-primary);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 20px 40px -10px var(--accent-primary);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--card-border);
    box-shadow: none;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: none;
}

/* Inputs */
.form-input, .comment-box {
    width: 100%;
    padding: 1.25rem;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: all 0.3s;
}

.form-input:focus, .comment-box:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: #fff;
    box-shadow: 0 0 0 4px var(--accent-glow);
}

/* Wizard Options */
.option-card {
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.option-card:hover {
    background: var(--hover-bg);
    transform: translateX(10px);
    border-color: var(--accent-primary);
}

.options-grid {
    display: grid;
    gap: 1rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0f172a; 
}
::-webkit-scrollbar-thumb {
    background: #334155; 
    border-radius: 4px;
}

/* Animations */
.fade-in {
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    opacity: 0;
    transform: translateY(20px);
}

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

/* Specific Page Styles */
.hero-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 24px;
    margin-bottom: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
}

.meal-plan {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
}

.meal-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.meal-label {
    color: var(--accent-primary);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

h1, h2, h3 {
    letter-spacing: -0.02em;
}

label {
    margin-left: 0.5rem;
    margin-bottom: 0.75rem;
    display: block;
    font-weight: 500;
    color: var(--text-secondary);
}

.progress-bar-bg {
    height: 6px; 
    background: rgba(255,255,255,0.1); 
    border-radius: 3px; 
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%; 
    background: var(--accent-gradient); 
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 0 15px var(--accent-primary);
}

.verification-input {
    letter-spacing: 0.5rem;
    font-size: 1.5rem;
    text-align: center;
    font-weight: 700;
}