:root {
    /* Palette: Moody Glass Morning (No Blue allowed) */
    --sand-base: #f3e9d8;
    --sand-outer: #e6dac3;
    --sand-darker: #d9cbb2;
    --emerald-accent: #059669;
    --emerald-dark: #047857;
    --charcoal-text: #262626;
    --charcoal-light: #404040;
    
    /* Structure & Effects */
    --radius: 20px;
    --btn-shadow: 4px 4px 0 var(--charcoal-text);
    --glass-bg: rgba(243, 233, 216, 0.6);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-blur: blur(12px);
    
    --max-width: 1100px;
}

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

body {
    background-color: var(--sand-outer);
    color: var(--charcoal-text);
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    line-height: 1.8;
    padding: max(10px, 2vw);
    min-height: 100vh;
}

/* Wide outer margin & inset frame */
.site-frame {
    background-color: var(--sand-base);
    border: 1px solid rgba(38, 38, 38, 0.15);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - max(20px, 4vw));
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

/* Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    border-bottom: 1px solid var(--sand-darker);
    position: relative; /* Static/relative flow, not sticky */
}

.brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--charcoal-text);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.desktop-nav {
    display: flex;
    gap: 30px;
}

.desktop-nav a {
    color: var(--charcoal-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: color 0.2s;
}

.desktop-nav a:hover {
    color: var(--emerald-accent);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--charcoal-text);
    font-weight: bold;
}

.mobile-nav-menu {
    display: none;
    flex-direction: column;
    background: var(--sand-darker);
    padding: 20px;
    border-radius: 0 0 var(--radius) var(--radius);
    text-align: center;
}

.mobile-nav-menu.active {
    display: flex;
}

.mobile-nav-menu a {
    padding: 15px;
    color: var(--charcoal-text);
    text-decoration: none;
    font-weight: bold;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* Layout Blocks */
section {
    width: 100%;
    padding: 60px 20px;
}

.section-alt {
    background-color: var(--sand-darker);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--charcoal-text);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -1px; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }
p { margin-bottom: 20px; font-size: 1.1rem; }

/* Hero Section */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    background-color: var(--charcoal-text); /* Fallback */
    border-radius: var(--radius);
    margin: 20px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(38,38,38,0.3), rgba(38,38,38,0.8));
    z-index: 1;
}

.hero-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    opacity: 0.7;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--sand-base);
    max-width: 800px;
}

.hero-content h1 {
    color: var(--sand-base);
}

/* Glassmorphic Components */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.05);
}

.glass-row {
    display: flex;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 15px;
    gap: 20px;
}

/* Buttons */
.btn, button.btn {
    display: inline-block;
    background-color: var(--emerald-accent);
    color: var(--sand-base);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    padding: 14px 28px;
    border-radius: var(--radius);
    border: none;
    box-shadow: var(--btn-shadow);
    cursor: pointer;
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
    margin-top: 10px;
}

.btn:hover, button.btn:hover {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0 var(--charcoal-text);
}

.btn-secondary {
    background-color: var(--charcoal-text);
    color: var(--sand-base);
}

/* Grids & Layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.split-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius);
}

/* Message Composer Tool */
.composer-tool {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--sand-darker);
    padding: 40px;
    border-radius: var(--radius);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--charcoal-light);
    background: var(--sand-base);
    font-family: inherit;
    font-size: 1rem;
    color: var(--charcoal-text);
}

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

.preview-box {
    background: var(--sand-base);
    border: 2px dashed var(--charcoal-light);
    border-radius: var(--radius);
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

#output-preview {
    flex-grow: 1;
    white-space: pre-wrap;
    font-family: monospace;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.tool-actions {
    display: flex;
    gap: 15px;
}

/* Footer */
.site-footer {
    margin-top: auto;
    background-color: var(--charcoal-text);
    color: var(--sand-base);
    padding: 60px 40px 20px;
    border-radius: 0 0 var(--radius) var(--radius);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--sand-base);
    margin-bottom: 15px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col a {
    color: var(--sand-base);
    text-decoration: none;
    opacity: 0.8;
}

.footer-col a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Scroll Reveal Class */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Media Queries */
@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .site-header {
        padding: 15px 20px;
    }
    .split-layout, .composer-tool {
        grid-template-columns: 1fr;
    }
    .hero {
        margin: 10px;
        min-height: 50vh;
    }
    body {
        padding: 10px;
    }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}