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

:root {
    --color-bg: #f8f9fa;
    --color-white: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #5a5a5a;
    --color-accent: #1e3a5f;
    --color-accent-hover: #152a45;
    --color-border: #e0e0e0;
    --color-error: #c53030;
    --color-success: #276749;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --max-width: 900px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    --border-radius: 8px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
}

/* Hero Section */
.hero {
    padding: var(--spacing-xxl) 0;
    text-align: center;
    background-color: var(--color-white);
}

.logo {
    display: block;
    margin: 0 auto var(--spacing-lg);
    height: auto;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.hero .supporting-text {
    margin-bottom: var(--spacing-lg);
}

.hero .supporting-text p {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
}

/* Buttons */
.btn {
    display: inline-block;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-white);
}

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

.btn-primary:active {
    transform: translateY(1px);
}

.btn-submit {
    width: 100%;
    position: relative;
}

.btn-submit .btn-loading {
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loading {
    display: inline;
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Sections */
section {
    padding: var(--spacing-xxl) 0;
}

.who-its-for {
    background-color: var(--color-bg);
}

.what-to-expect {
    background-color: var(--color-white);
}

.about {
    background-color: var(--color-bg);
}

.form-section {
    background-color: var(--color-white);
}

/* Cards */
.cards {
    display: grid;
    gap: var(--spacing-md);
}

.card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.card h3 {
    color: var(--color-accent);
}

.card p {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Expect List */
.expect-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.expect-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.expect-list li::before {
    content: '•';
    color: var(--color-accent);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.note {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    font-style: italic;
}

/* About Section */
.about p:last-child {
    margin-bottom: 0;
}

/* Form */
form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.required {
    color: var(--color-error);
}

input[type="text"],
input[type="email"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-family);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-white);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

input.error,
select.error,
textarea.error {
    border-color: var(--color-error);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235a5a5a' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.error-message {
    display: block;
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    min-height: 1.25rem;
}

.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #e6f4ea;
    color: var(--color-success);
    border: 1px solid #a8d5b8;
}

.form-message.error {
    display: block;
    background-color: #fce8e8;
    color: var(--color-error);
    border: 1px solid #f5c6c6;
}

/* Footer */
footer {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

footer p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* Responsive */
@media (min-width: 768px) {
    h1 {
        font-size: 3.25rem;
    }

    .hero {
        padding: var(--spacing-xxl) 0 calc(var(--spacing-xxl) * 1.2);
    }

    .hero .subtitle {
        font-size: 1.375rem;
    }

    .cards {
        grid-template-columns: repeat(3, 1fr);
    }

    .form-group {
        margin-bottom: var(--spacing-lg);
    }

    .btn-submit {
        width: auto;
        min-width: 200px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .btn,
    input,
    select,
    textarea {
        transition: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #1a1a1a;
    }

    .card {
        border-width: 2px;
    }
}