:root {
    --primary-color: #6f4e37;
    --primary-dark: #4a3225;
    --primary-light: #8b6f47;
    --secondary-color: #d4a574;
    --accent-color: #c7a17a;
    --background: #faf8f5;
    --card-background: #ffffff;
    --text-dark: #2c2c2c;
    --text-medium: #5a5a5a;
    --text-light: #8a8a8a;
    --border-color: #e0d5c7;
    --shadow: 0 2px 8px rgba(111, 78, 55, 0.1);
    --shadow-hover: 0 4px 16px rgba(111, 78, 55, 0.15);
}

/* Dark Mode */
body.dark-mode {
    --primary-color: #c7a17a;
    --primary-dark: #d4a574;
    --primary-light: #b8956a;
    --secondary-color: #8b6f47;
    --accent-color: #a68b62;
    --background: #1a1a1a;
    --card-background: #2a2a2a;
    --text-dark: #e8e8e8;
    --text-medium: #b8b8b8;
    --text-light: #888888;
    --border-color: #404040;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.4);
}

body.dark-mode header {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

body.dark-mode .main-nav {
    background: #2a2a2a;
}

body.dark-mode .nav-btn {
    background: #1a1a1a;
    color: #e8e8e8;
}

body.dark-mode .nav-btn:hover {
    background: #8b6f47;
}

body.dark-mode .nav-btn.active {
    background: #c7a17a;
    color: #1a1a1a;
}

body.dark-mode .data-table thead {
    background: #8b6f47;
}

body.dark-mode .data-table tbody tr:hover {
    background: #333333;
}

body.dark-mode .tip-box {
    background: linear-gradient(135deg, #3a3420 0%, #2d2a1a 100%);
}

body.dark-mode footer {
    background: #1a1a1a;
}

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

body {
    font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

header h1 {
    font-family: 'Playfair Display', 'Georgia', serif;
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.tagline {
    font-family: 'Crimson Text', 'Georgia', serif;
    font-size: 1.1em;
    opacity: 0.95;
    font-weight: 400;
    font-style: italic;
    letter-spacing: 0.3px;
}

/* Header Controls */
.header-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.control-btn {
    font-family: 'Poppins', sans-serif;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    letter-spacing: 0.3px;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

header .container {
    position: relative;
}

/* Navigation */
.main-nav {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    margin-bottom: 30px;
}

.main-nav .container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 15px 20px;
    justify-content: center;
}

.nav-btn {
    font-family: 'Poppins', sans-serif;
    background: var(--background);
    border: 2px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 600;
    color: var(--text-dark);
    transition: all 0.3s ease;
    letter-spacing: 0.2px;
}

.nav-btn:hover {
    background: var(--secondary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.nav-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-dark);
}

/* Main Content */
main {
    padding: 20px;
    min-height: calc(100vh - 300px);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.4s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section h2 {
    font-family: 'Merriweather', 'Georgia', serif;
    font-size: 2.2em;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--secondary-color);
    font-weight: 700;
    letter-spacing: -0.3px;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.card h3 {
    font-family: 'Lora', 'Georgia', serif;
    color: var(--primary-color);
    font-size: 1.5em;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
    font-weight: 600;
    letter-spacing: -0.2px;
}

.card h4 {
    font-family: 'Lora', 'Georgia', serif;
    color: var(--primary-dark);
    font-size: 1.1em;
    margin-top: 15px;
    margin-bottom: 8px;
    font-weight: 600;
}

/* Method Details */
.method-details .description {
    font-family: 'Crimson Text', 'Georgia', serif;
    font-style: italic;
    color: var(--text-medium);
    margin-bottom: 15px;
    line-height: 1.7;
    font-size: 1.05em;
}

.specs {
    background: var(--background);
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
}

.spec {
    padding: 5px 0;
    border-bottom: 1px solid var(--border-color);
}

.spec:last-child {
    border-bottom: none;
}

.spec strong {
    font-family: 'Inter', sans-serif;
    color: var(--primary-color);
    display: inline-block;
    min-width: 120px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

/* Instructions */
.instructions ol {
    font-family: 'Roboto', sans-serif;
    margin-left: 20px;
    margin-top: 10px;
}

.instructions li {
    margin-bottom: 8px;
    line-height: 1.7;
    font-weight: 400;
}

/* Drink List */
.drink-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.drink {
    background: var(--background);
    padding: 12px 15px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.drink h4 {
    font-family: 'Poppins', sans-serif;
    margin: 0 0 5px 0;
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.2px;
}

.drink p {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    color: var(--text-medium);
    font-size: 0.95em;
}

/* Recipe Cards */
.recipe-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.recipe-content ul li {
    margin-bottom: 5px;
}

.recipe-content ol {
    margin-left: 20px;
    margin-bottom: 15px;
}

.recipe-content ol li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Tables */
.data-table {
    font-family: 'Inter', sans-serif;
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    background: white;
}

.data-table thead {
    background: var(--primary-color);
    color: white;
}

.data-table th {
    font-family: 'Poppins', sans-serif;
    padding: 12px;
    text-align: left;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.85em;
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95em;
}

.data-table tbody tr:hover {
    background: var(--background);
}

/* Metric Info */
.metric-info {
    line-height: 1.7;
}

.metric-info ul {
    margin: 10px 0 15px 20px;
}

.metric-info li {
    margin-bottom: 8px;
}

.metric-info code {
    font-family: 'Fira Code', 'Courier New', monospace;
    background: var(--background);
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--primary-dark);
    font-size: 0.9em;
    font-weight: 500;
    letter-spacing: -0.3px;
}

/* Tip Box */
.tip-box {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #fff9e6 0%, #fff3d4 100%);
    border-left: 4px solid var(--secondary-color);
    padding: 15px;
    margin: 15px 0;
    border-radius: 6px;
}

.tip-box strong {
    font-family: 'Poppins', sans-serif;
    color: var(--primary-color);
    font-weight: 600;
}

/* Grind Levels */
.grind-levels {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.grind-level {
    background: var(--background);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-light);
}

.grind-level h4 {
    font-family: 'Poppins', sans-serif;
    margin: 0 0 8px 0;
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.grind-level p {
    font-family: 'Roboto', sans-serif;
    margin: 5px 0;
    font-size: 0.95em;
}

.texture {
    color: var(--text-medium);
    font-style: italic;
}

.use {
    color: var(--text-dark);
}

.time {
    color: var(--primary-light);
}

/* Grinder and Equipment Info */
.grinder-info, .equipment-list, .maintenance-guide {
    line-height: 1.7;
}

.grinder-info h4, .equipment-list h4, .maintenance-guide h4 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.grinder-info p, .equipment-list p {
    margin: 5px 0;
}

.equipment-list ul, .maintenance-guide ul {
    margin: 10px 0 15px 20px;
}

.equipment-list li, .maintenance-guide li {
    margin-bottom: 8px;
}

/* Species Info */
.species-info h4 {
    color: var(--primary-color);
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1.2em;
}

.species-info ul {
    margin: 10px 0 20px 20px;
}

.species-info li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Roast Levels */
.roast-levels {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.roast {
    background: var(--background);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.roast h4 {
    margin: 0 0 10px 0;
    color: var(--primary-color);
}

.roast p {
    margin: 5px 0;
    font-size: 0.95em;
}

/* Origin Profiles */
.origin-profiles {
    line-height: 1.7;
}

.origin-profiles h4 {
    color: var(--primary-color);
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1.15em;
}

.origin-profiles p {
    margin: 5px 0;
    padding-left: 15px;
}

/* Processing Methods */
.processing-methods {
    line-height: 1.7;
}

.processing-methods h4 {
    color: var(--primary-color);
    margin-top: 20px;
    margin-bottom: 8px;
}

.processing-methods p {
    margin: 5px 0;
}

/* Storage Guide */
.storage-guide h4 {
    color: var(--primary-color);
    margin-top: 20px;
    margin-bottom: 10px;
}

.storage-guide ul {
    margin: 10px 0 15px 20px;
}

.storage-guide li {
    margin-bottom: 8px;
}

.storage-guide p {
    margin: 10px 0;
}

/* Troubleshooting */
.troubleshooting {
    line-height: 1.7;
}

.troubleshooting h4 {
    color: var(--primary-color);
    margin-top: 15px;
    margin-bottom: 5px;
}

.troubleshooting p {
    margin: 5px 0;
    padding-left: 10px;
}

/* Terminology List */
.terminology-list {
    line-height: 1.7;
}

.terminology-list dt {
    font-family: 'Poppins', sans-serif;
    color: var(--primary-color);
    font-weight: 700;
    margin-top: 15px;
    font-size: 1.05em;
    letter-spacing: 0.2px;
}

.terminology-list dd {
    font-family: 'Roboto', sans-serif;
    margin-left: 20px;
    margin-bottom: 10px;
    color: var(--text-medium);
    font-size: 0.98em;
}

/* Footer */
footer {
    background: var(--primary-dark);
    color: white;
    text-align: center;
    padding: 30px 20px;
    margin-top: 50px;
}

footer p {
    font-family: 'Inter', sans-serif;
    opacity: 0.9;
    font-weight: 400;
    letter-spacing: 0.3px;
}

/* Input and Button Styling */
input[type="text"],
input[type="number"],
select {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
}

button {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

/* Additional Typography Polish */
p {
    font-family: 'Roboto', sans-serif;
    line-height: 1.7;
}

ul, ol {
    font-family: 'Roboto', sans-serif;
}

strong, b {
    font-weight: 600;
}

em, i {
    font-family: 'Crimson Text', 'Georgia', serif;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .tagline {
        font-size: 1em;
    }

    .main-nav .container {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding: 10px;
    }

    .nav-btn {
        padding: 8px 16px;
        font-size: 0.9em;
        white-space: nowrap;
    }

    .cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .content-section h2 {
        font-size: 1.8em;
    }

    .card h3 {
        font-size: 1.3em;
    }

    .data-table {
        font-size: 0.9em;
    }

    .data-table th,
    .data-table td {
        padding: 8px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.6em;
    }

    .container {
        padding: 0 15px;
    }

    .card {
        padding: 20px;
    }

    .spec strong {
        min-width: 100px;
        font-size: 0.9em;
    }
}

/* Print Styles */
@media print {
    .main-nav {
        display: none;
    }

    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .content-section {
        display: block !important;
    }
}