/* ==========================================================================
   1. VARIABLES & DESIGN SYSTEM
   ========================================================================== */
:root {
    /* Color Palette */
    --color-bg-primary: #FCFBF9;      /* Elegant soft off-white/cream */
    --color-bg-secondary: #F4F1EC;    /* Warm beige alternative */
    --color-text-primary: #1A1A1A;    /* Sharp luxury black */
    --color-text-muted: #666666;      /* Mid-tone grey for descriptions */
    --color-accent-gold: #C5A880;     /* Muted, desaturated luxury gold */
    --color-accent-gold-hover: #B3966E;
    --color-border: #E5E0D8;          /* Light warm grey borders */
    --color-white: #FFFFFF;

    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Montserrat', Helvetica, Arial, sans-serif;

    /* Layout & Animation */
    --max-width: 1200px;
    --max-width-narrow: 760px;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: all 0.2s ease;
}

/* ==========================================================================
   2. BASE STYLES & RESET
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-weight: 300;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 400;
    margin: 0 0 16px 0;
    color: var(--color-text-primary);
    letter-spacing: 0.02em;
}

p {
    margin: 0 0 16px 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   3. UTILITY & CONTAINER STYLES
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    width: 100%;
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: 0 24px;
}

/* Bulletproof Visually Hidden (Netlify Honeypot Trap) */
.bot-trap {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   4. HEADER & NAVIGATION
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(252, 251, 249, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.brand-logo {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
}

.sub-logo {
    font-family: var(--font-sans);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent-gold);
    margin-left: 8px;
    font-weight: 500;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-menu a {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    font-weight: 500;
}

.nav-menu a:hover {
    color: var(--color-text-primary);
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1006;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    position: relative;
    transition: var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: var(--transition-fast);
    left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { bottom: -7px; }

/* ==========================================================================
   5. BUTTONS & INTERACTIVE ELEMENTS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 11px;
}

/* ==========================================================================
   6. HERO SECTION
   ========================================================================== */
.hero-section {
    padding: 160px 0 80px 0;
    text-align: center;
}

.hero-content h1 {
    font-size: clamp(36px, 5vw, 64px);
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 18px);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 32px auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ==========================================================================
   7. APPLICATION FORM STYLING
   ========================================================================== */
.application-section {
    padding: 80px 0 140px 0;
    background-color: var(--color-bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 32px;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 14px;
}

.application-form {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    padding: 48px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.02);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.grid-full {
    grid-column: span 2;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 8px;
    color: var(--color-text-primary);
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--color-text-primary);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-gold);
}

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

/* Custom File Upload Styling */
.file-upload-wrapper {
    position: relative;
    width: 100%;
    border: 1px dashed var(--color-border);
    background-color: var(--color-white);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.file-upload-wrapper:hover {
    border-color: var(--color-accent-gold);
}

.file-upload-wrapper input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.file-chosen {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ==========================================================================
   8. DIGITAL SIGNATURE PAD & CHECKBOX STYLING
   ========================================================================== */
.signature-wrapper {
    width: 100%;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    transition: var(--transition-fast);
}

.signature-wrapper:focus-within, 
.signature-wrapper:hover {
    border-color: var(--color-accent-gold);
}

#signatureCanvas {
    width: 100%;
    height: 200px;
    border: 1px dashed var(--color-border);
    background-color: var(--color-white);
    cursor: crosshair;
    touch-action: none;
}

#clearSignature {
    margin-top: 16px;
    padding: 8px 16px;
    font-size: 11px;
    align-self: flex-end; 
}

/* Authorization Checkbox Group Styling ("ilysmp...") */
.checkbox-group {
    flex-direction: row !important;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent-gold);
    cursor: pointer;
}

.checkbox-group label {
    margin-bottom: 0 !important;
    text-transform: none !important;
    font-size: 14px !important;
    cursor: pointer;
    font-weight: 400 !important;
}

/* ==========================================================================
   9. ERROR & VALIDATION STATES
   ========================================================================== */
.error-message {
    display: none;
    font-size: 11px;
    color: #d9534f;
    margin-top: 6px;
    letter-spacing: 0.05em;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea,
.form-group.has-error .file-upload-wrapper,
.form-group.has-error .signature-wrapper {
    border-color: #d9534f;
}

.form-group.has-error .error-message {
    display: block;
}

/* ==========================================================================
   10. MODAL POPUP STYLING
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 2000;
    padding: 24px;
}

.modal-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    width: 100%;
    max-width: 500px;
    padding: 48px;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.modal-overlay.is-active .modal-container {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text-primary);
}

.modal-content {
    text-align: center;
}

.success-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 1px solid var(--color-accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
    color: var(--color-accent-gold);
}

.modal-content h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.modal-content p {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 32px;
}

/* ==========================================================================
   11. FOOTER
   ========================================================================== */
.main-footer {
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

/* ==========================================================================
   12. ANIMATIONS & RESPONSIVE BREAKPOINTS
   ========================================================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.scroll-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .application-form {
        padding: 32px 24px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .grid-full {
        grid-column: span 1;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--color-bg-primary);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
        padding: 120px 40px 40px 40px;
        transition: var(--transition-smooth);
        z-index: 1005;
    }

    .nav-menu.is-active {
        right: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }

    .nav-menu a {
        font-size: 14px;
    }
}