/* CSS Custom Properties */
:root {
    --color-bg: #F4F4F2;
    --color-text: #0C1425;
    --color-accent: #FFB500;
    --color-border: #ddd;
    --color-card: #ffffff;
    --font-primary: 'Quicksand', sans-serif;
    --container-max-width: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow-light: 0 2px 8px rgba(12, 20, 37, 0.1);
    --shadow-hover: 0 8px 25px rgba(12, 20, 37, 0.15);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-weight: 400;
}

h1, h2, h3 {
    font-family: var(--font-primary);
    font-weight: 600;
    text-align: left;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    padding: 0 2rem;
}

@media (min-width: 768px) {
    p {
        padding: 0;
    }
}

/* Section spacing */
section {
    margin-bottom: 4rem;
}

section:last-child {
    margin-bottom: 0;
}

/* List styling */
ul {
    margin-bottom: 1.5rem;
    margin-left: 1.5rem;
}

ul li {
    margin-bottom: 0.5rem;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 1rem 1.5rem;
}

@media (min-width: 768px) {
    .container {
        padding: 2rem;
    }
}

/* Header and Nav */
header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--color-text);
}

.hamburger {
    display: block;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text);
    padding: 0.5rem;
    margin: -0.5rem;
}

.nav-menu {
    display: none;
    list-style: none;
}

.nav-menu li {
    margin: 1rem 0;
}

.nav-menu a {
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
    position: relative;
    display: inline-block;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-accent);
    font-weight: 500;
}

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
    
    .nav-menu {
        display: flex;
        gap: 1rem;
    }
    
    .nav-menu li {
        margin: 0;
    }
}

/* Hero */
.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    text-align: center;
    margin-bottom: 1rem;
}

.hero p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta {
    background-color: var(--color-accent);
    color: var(--color-text);
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    display: inline-block;
    transition: var(--transition);
    font-weight: 500;
}

.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Principles */
.principles-grid {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .principles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .principles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.principle-card {
    background: var(--color-card);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid rgba(12, 20, 37, 0.08);
}

.principle-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.principle-card h3 {
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.principle-card p {
    color: var(--color-text);
    opacity: 0.8;
    margin-bottom: 0;
    padding: 0;
}

/* Scoring */
.radar-chart {
    text-align: center;
}

.abstract-diagram {
    margin: 2rem auto;
    filter: blur(2px); /* For abstraction */
}

/* Form */
.contact-form {
    max-width: 600px;
    margin: 2rem auto;
    padding: 1.5rem;
    background: var(--color-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(12, 20, 37, 0.08);
}

@media (min-width: 768px) {
    .contact-form {
        padding: 2rem;
    }
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--color-text);
    font-size: 1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.5;
    transition: var(--transition);
    background-color: var(--color-bg);
    color: var(--color-text);
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(229, 192, 123, 0.15);
    background-color: #ffffff;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(12, 20, 37, 0.5);
    font-style: italic;
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
    font-family: var(--font-primary);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 3rem;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    margin: 0;
    margin-top: 0.125rem;
    accent-color: var(--color-accent);
}

.checkbox-text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-text);
    opacity: 0.8;
    padding: 0;
}

/* Button Consistency */
.contact-form .cta {
    margin-top: 1rem;
    width: 100%;
    text-align: center;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Contact Methods */
.contact-methods {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .contact-methods {
        grid-template-columns: repeat(3, 1fr);
    }
}

.contact-method {
    padding: 1.5rem;
    background: var(--color-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.contact-method:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.contact-method h3 {
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.contact-method p {
    margin-bottom: 0;
    font-size: 0.95rem;
    color: var(--color-text);
    opacity: 0.8;
    padding: 0;
}

/* Footer */
footer {
    text-align: center;
    padding: 1rem 0;
    border-top: 1px solid #ddd;
    margin-top: 2rem;
}

/* Mobile menu toggle */
.nav-menu.active {
    display: block;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-light);
}