:root {
    --bg-grad-start: #fef9e7;
    --bg-grad-end: #f6e6a8;
    --text-dark: #2c3e50;
    --text-muted: #5d6d7e;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.8);
    --accent: #c9971f;
    --accent-dark: #a3790f;
    --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

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

html, body {
    min-height: 100%;
}

body {
    font-family: var(--font-stack);
    background: linear-gradient(135deg, var(--bg-grad-start) 0%, var(--bg-grad-end) 100%);
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: var(--accent-dark);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Nav */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 40px;
    flex-wrap: wrap;
    gap: 12px;
}

.nav-brand {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
}

/* Main content wrapper */
.page {
    flex: 1;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 20px 40px 60px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 60px 40px;
    margin-bottom: 40px;
}

.hero .title {
    font-size: 2.5rem;
    font-weight: 300;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero .subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-top: 14px;
    font-weight: 300;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.hero .logo {
    max-width: 220px;
    margin-bottom: 20px;
}

/* Section headings */
.section {
    margin: 48px 0;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 20px;
}

/* Cards / grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    padding: 24px;
}

.case-study-card img {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 16px;
}

.case-study-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.case-study-card p {
    color: var(--text-muted);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.tech-tag {
    background: rgba(201, 151, 31, 0.15);
    color: var(--accent-dark);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
}

/* Skills */
.skills-category {
    margin-bottom: 24px;
}

.skills-category h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
}

.skill-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--glass-border);
    padding: 6px 14px;
    border-radius: 999px;
    margin: 0 8px 8px 0;
    font-size: 0.9rem;
}

/* Blog */
.blog-list-item {
    padding: 20px 24px;
    margin-bottom: 16px;
}

.blog-list-item h3 {
    font-size: 1.2rem;
    margin-bottom: 6px;
}

.blog-list-item .date {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
    display: block;
}

.blog-body {
    line-height: 1.7;
}

.blog-body pre {
    overflow-x: auto;
    background: rgba(0, 0, 0, 0.05);
    padding: 16px;
    border-radius: 8px;
}

.blog-body pre.mermaid {
    background: transparent;
    text-align: center;
    padding: 0;
}

/* Forms */
.form-field {
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
}

.form-field label {
    margin-bottom: 6px;
    font-weight: 500;
}

.form-field input,
.form-field textarea {
    font-family: var(--font-stack);
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.8);
}

.honeypot-field {
    position: absolute;
    left: -9999px;
    top: -9999px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    background: var(--text-dark);
    color: #fff;
    font-weight: 500;
    border: none;
    cursor: pointer;
    font-family: var(--font-stack);
    font-size: 1rem;
}

.btn:hover {
    background: #1a252f;
    text-decoration: none;
}

.messages {
    list-style: none;
    margin-bottom: 20px;
}

.messages li {
    padding: 12px 18px;
    border-radius: 10px;
    margin-bottom: 8px;
}

.messages .success {
    background: rgba(46, 160, 67, 0.15);
    color: #1e6b30;
}

.messages .error {
    background: rgba(200, 60, 60, 0.15);
    color: #8a2020;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer a {
    color: var(--text-muted);
    margin: 0 8px;
}

/* Animation, reused from the original placeholder page */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile responsive styles, matching the breakpoints from the original page */
@media (max-width: 768px) {
    .nav, .page {
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero .title {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .nav, .page {
        padding-left: 15px;
        padding-right: 15px;
    }

    .hero .title {
        font-size: 1.5rem;
    }

    .hero .subtitle {
        font-size: 0.9rem;
    }
}

@media (max-width: 320px) {
    .hero .title {
        font-size: 1.3rem;
    }
}