/* ========================================
   Agriculture Portfolio - Main Stylesheet
   ======================================== */

/* ========== CSS Variables & Design System ========== */
:root {
    /* Agriculture-inspired Color Palette */
    --color-primary: #2d5016;
    --color-primary-light: #4a7c3b;
    --color-primary-lighter: #6b9655;
    --color-secondary: #8b7355;
    --color-secondary-light: #a0826d;
    --color-accent: #f4a261;
    --color-accent-light: #f7b98c;

    /* Neutral Colors */
    --color-bg-light: #fdfdf8;
    --color-bg-cream: #f8f6f0;
    --color-text-dark: #2c2c2c;
    --color-text-medium: #555555;
    --color-text-light: #777777;
    --color-white: #ffffff;
    --color-border: #e0d9c8;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(45, 80, 22, 0.08);
    --shadow-md: 0 4px 16px rgba(45, 80, 22, 0.12);
    --shadow-lg: 0 8px 32px rgba(45, 80, 22, 0.16);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ========== Global Styles ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    background-color: var(--color-bg-light);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    line-height: 1.3;
    color: var(--color-primary);
}

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

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

ul {
    list-style: none;
}

/* ========== Navigation ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(253, 253, 248, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(253, 253, 248, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-medium);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-medium);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition-medium);
}

/* ========== Section Styles ========== */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: 0 auto var(--spacing-sm);
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-medium);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== Hero Section ========== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, #fdfdf8 0%, #f0f4e8 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(107, 150, 85, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(244, 162, 97, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.profile-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.profile-frame {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    padding: 8px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    box-shadow: var(--shadow-lg);
    position: relative;
}

.profile-frame::before {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(107, 150, 85, 0.2), rgba(244, 162, 97, 0.2));
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.05);
        opacity: 0.3;
    }
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--color-white);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--color-text-medium);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    opacity: 1 !important;
    visibility: visible !important;
}

/* ========== Buttons ========== */
.btn {
    padding: 0.9rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-medium);
    display: inline-block;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
}

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

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

/* ========== Scroll Indicator ========== */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(-45deg);
    margin: 8px auto;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) rotate(-45deg);
    }

    40% {
        transform: translateY(-10px) rotate(-45deg);
    }

    60% {
        transform: translateY(-5px) rotate(-45deg);
    }
}

/* ========== About Section ========== */
.about-section {
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--color-text-medium);
}

.about-intro {
    font-size: 1.15rem !important;
    color: var(--color-text-dark) !important;
}

.about-illustration {
    display: flex;
    justify-content: center;
    align-items: center;
}

.agri-icon-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.agri-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--color-bg-cream), var(--color-white));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

.agri-icon:hover {
    transform: translateY(-8px) rotate(5deg);
    box-shadow: var(--shadow-md);
}

/* ========== Timeline Styles ========== */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.timeline-marker {
    position: absolute;
    left: -48px;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 4px solid var(--color-white);
    box-shadow: 0 0 0 3px var(--color-primary);
}

.timeline-content {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.timeline-date {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.timeline-institution {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.timeline-grade {
    font-size: 1rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.timeline-details {
    margin-top: var(--spacing-md);
}

.timeline-details h5 {
    font-size: 1.05rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.coursework-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.coursework-list li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-medium);
}

.coursework-list li::before {
    content: '🌿';
    position: absolute;
    left: 0;
    font-size: 0.9rem;
}

.thesis-heading {
    margin-top: var(--spacing-md);
}

.thesis-box {
    background: var(--color-bg-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-accent);
}

.thesis-title {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
}

.thesis-description {
    color: var(--color-text-medium);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========== Education Section ========== */
.education-section {
    background: var(--color-bg-cream);
}

/* ========== Research Section ========== */
.research-section {
    background: var(--color-white);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.research-card {
    background: var(--color-bg-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    border-top: 4px solid var(--color-primary);
}

.research-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.research-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.research-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.research-authors {
    font-size: 0.95rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.research-journal {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.research-abstract {
    color: var(--color-text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.research-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.keyword {
    padding: 0.3rem 0.8rem;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-primary);
}

.research-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.research-doi {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.research-description {
    font-size: 0.95rem;
    color: var(--color-text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.research-card .btn {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

/* ========== Experience Section ========== */
.experience-section {
    background: var(--color-bg-cream);
}

.experience-responsibilities {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.experience-responsibilities li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-medium);
}

/* ========== Skills Section ========== */
.skills-section {
    background: var(--color-white);
}

.skills-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.skill-category {
    background: var(--color-bg-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.category-title {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    text-align: center;
}

.skill-item {
    margin-bottom: var(--spacing-md);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.skill-name {
    font-weight: 600;
    color: var(--color-text-dark);
}

.skill-percentage {
    color: var(--color-accent);
    font-weight: 600;
}

.skill-bar {
    height: 10px;
    background: var(--color-white);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lighter));
    border-radius: var(--radius-sm);
    width: 0;
    transition: width 1.5s ease-out;
}

/* ========== Certifications Section ========== */
.certifications-section {
    background: var(--color-bg-cream);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.cert-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-medium);
    border: 2px solid transparent;
}

.cert-card:hover {
    border-color: var(--color-accent);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.cert-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.cert-title {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.cert-issuer {
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.cert-year {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.cert-description {
    font-size: 0.95rem;
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* ========== Conferences Section ========== */
.conferences-section {
    background: var(--color-white);
}

.conferences-list {
    display: grid;
    gap: var(--spacing-md);
}

.conference-card {
    background: var(--color-bg-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    position: relative;
    border-left: 5px solid var(--color-primary);
}

.conference-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.conference-type {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.conference-type.oral {
    background: var(--color-accent);
    color: var(--color-white);
}

.conference-type.participation {
    background: var(--color-primary-lighter);
    color: var(--color-white);
}

.conference-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.conference-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: 0.95rem;
    color: var(--color-text-medium);
}

.conference-description {
    color: var(--color-text-medium);
    line-height: 1.7;
}

/* ========== Honors & Awards Section ========== */
.honors-section {
    background: var(--color-bg-cream);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.award-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.award-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

.award-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.award-badge {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

.award-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.award-organization {
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.award-year {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.award-description {
    font-size: 0.95rem;
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* ========== Volunteering Section ========== */
.volunteering-section {
    background: var(--color-white);
}

.leadership-grid {
    display: grid;
    gap: var(--spacing-md);
}

.leadership-card {
    background: var(--color-bg-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

.leadership-card:hover {
    box-shadow: var(--shadow-md);
}

.leadership-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.leadership-title {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.leadership-org {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.leadership-period {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.leadership-responsibilities {
    list-style: disc;
    padding-left: var(--spacing-md);
}

.leadership-responsibilities li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-medium);
}

.leadership-location {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.leadership-description {
    font-size: 0.95rem;
    color: var(--color-text-medium);
    line-height: 1.7;
}

/* ========== Languages Section ========== */
.languages-section {
    background: var(--color-bg-cream);
}

.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.language-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-medium);
}

.language-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.language-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.language-level {
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.language-proficiency {
    height: 10px;
    background: var(--color-bg-cream);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.proficiency-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-sm);
    transition: width 1s ease-out;
}

/* ========== Contact Section ========== */
.contact-section {
    background: var(--color-white);
    position: relative;
    overflow: hidden;
}

.contact-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(107, 150, 85, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(244, 162, 97, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.contact-form {
    background: var(--color-bg-cream);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.9rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-medium);
    background: var(--color-white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(45, 80, 22, 0.1);
}

.btn-submit {
    width: 100%;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--color-bg-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    opacity: 1 !important;
    visibility: visible !important;
    align-items: center;
}

.info-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.info-icon {
    font-size: 2rem;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
}

.info-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--color-primary);
}

.info-content h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.info-content p {
    color: var(--color-text-medium);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
}

.social-link {
    padding: 0.7rem 1.3rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition-medium);
}

.social-link:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

/* ========== Footer ========== */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    text-align: center;
}

.footer p {
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-style: italic;
    opacity: 0.9;
}

/* ========== Responsive Design ========== */

/* Tablet */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .agri-icon-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .coursework-list {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background: var(--color-white);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        gap: var(--spacing-sm);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .profile-frame {
        width: 220px;
        height: 220px;
    }

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

    .section {
        padding: var(--spacing-lg) 0;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -38px;
    }

    .skills-categories {
        grid-template-columns: 1fr;
    }

    .agri-icon-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .agri-icon {
        width: 80px;
        height: 80px;
        font-size: 2.5rem;
    }

    .conference-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

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

    .section-title {
        font-size: 1.8rem;
    }

    .profile-frame {
        width: 180px;
        height: 180px;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }
}