/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #2c5aa0;
    --primary-dark: #1e3d6f;
    --primary-light: #4a7bc8;
    --secondary-color: #f8f9fa;
    --accent-color: #e8f4fd;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --text-light: #ffffff;
    --border-color: #e9ecef;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #ffffff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0;
}

.nav__subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 400;
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav__link {
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav__link:hover {
    color: var(--primary-color);
    background-color: var(--accent-color);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, var(--accent-color) 0%, #ffffff 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
    font-size: var(--font-size-2xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.hero__description {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero__credentials {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.credential {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.credential__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.credential__icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.hero__actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

.hero__photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-heavy);
    object-fit: cover;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 140px;
}

.btn--primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--shadow-light);
}

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

.btn--secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Section Styles */
.section__title {
    text-align: center;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-3xl);
    position: relative;
}

.section__title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--secondary-color);
}

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

.about__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about__text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-primary);
}

/* Experience Section */
.experience {
    padding: var(--spacing-3xl) 0;
    background-color: #ffffff;
}

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

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--primary-color);
}

.timeline__item {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    padding-left: 80px;
}

.timeline__year {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-medium);
}

.timeline__content {
    background-color: var(--secondary-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--primary-color);
}

.timeline__content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

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

.timeline__grade {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline__description {
    color: var(--text-primary);
    line-height: 1.6;
}

/* Societies Section */
.societies {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-xl);
    background-color: var(--secondary-color);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.societies__title {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-2xl);
    text-align: center;
}

.societies__list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.society__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background-color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
}

.society__item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.society__name {
    font-weight: 600;
    color: var(--text-primary);
}

.society__period {
    color: var(--primary-color);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* Specializations Section */
.specializations {
    padding: var(--spacing-3xl) 0;
    background-color: var(--accent-color);
}

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

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

.specialization__card {
    background-color: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
    border-top: 4px solid var(--primary-color);
}

.specialization__card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.specialization__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    width: 64px;
    height: 64px;
}

.specialization__icon svg {
    width: 48px;
    height: 48px;
    color: var(--primary-color);
}

.specialization__card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.specialization__card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.specialization__list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0;
}

.specialization__list li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    line-height: 1.5;
    position: relative;
    padding-left: var(--spacing-md);
}

.specialization__list li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
    background-color: #ffffff;
}

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

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact__info h3,
.contact__form h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.contact__item {
    display: flex;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--secondary-color);
    border-radius: var(--radius-md);
}

.contact__label {
    font-weight: 600;
    color: var(--primary-color);
    min-width: 120px;
    margin-right: var(--spacing-sm);
}

.contact__value {
    color: var(--text-primary);
    flex: 1;
}

/* Contact CTA Styles */
.contact__cta {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--accent-color);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-color);
}

.contact__cta-text {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.contact__phone-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
}

.contact__phone-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.contact__phone-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.contact__phone-icon svg {
    width: 20px;
    height: 20px;
    color: currentColor;
}

.contact__cta-note {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-style: italic;
}

/* Offices Section Styles */
.offices {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-3xl);
    border-top: 2px solid var(--border-color);
}

.offices__title {
    text-align: center;
    color: var(--primary-color);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.offices__subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-3xl);
}

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

.office__card {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    border: 2px solid var(--border-color);
    transition: all var(--transition-normal);
}

.office__card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.office__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-color) 0%, #ffffff 100%);
    border-bottom: 2px solid var(--border-color);
}

.office__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: var(--shadow-light);
}

.office__icon svg {
    width: 28px;
    height: 28px;
    color: var(--text-light);
}

.office__info {
    flex: 1;
}

.office__name {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.office__location {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    font-weight: 500;
    margin: 0;
}

.office__map {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.office__map iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
}

/* Form Styles */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form__group {
    display: flex;
    flex-direction: column;
}

.form__label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form__input,
.form__textarea {
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-xl) 0;
}

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

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer__info h3 {
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.footer__info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xs);
}

.footer__legal {
    text-align: right;
    color: rgba(255, 255, 255, 0.8);
}

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

.footer__credits {
    text-align: center;
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer__credits p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer__credits-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer__credits-link:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .contact__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .nav__menu {
        display: none;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 var(--spacing-xl);
    }
    
    .hero__title {
        font-size: var(--font-size-4xl);
    }
    
    .hero__subtitle {
        font-size: var(--font-size-xl);
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .section__title {
        font-size: var(--font-size-3xl);
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline__item {
        padding-left: 60px;
    }
    
    .timeline__year {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-xs);
    }
    
    .specializations__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer__legal {
        text-align: center;
    }
    
    .offices__grid {
        grid-template-columns: 1fr;
    }
    
    .office__map {
        height: 350px;
    }
}

@media (max-width: 480px) {
    .nav__container {
        padding: 0 var(--spacing-md);
    }
    
    .hero__container,
    .about__container,
    .experience__container,
    .specializations__container,
    .contact__container {
        padding: 0 var(--spacing-md);
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero__subtitle {
        font-size: var(--font-size-lg);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero__actions {
        flex-direction: column;
    }
    
    .offices__title {
        font-size: var(--font-size-2xl);
    }
    
    .offices__subtitle {
        font-size: var(--font-size-base);
    }
    
    .offices__grid {
        gap: var(--spacing-md);
    }
    
    .office__map {
        height: 280px;
    }
    
    .office__name {
        font-size: var(--font-size-base);
    }
    
    .office__icon {
        width: 40px;
        height: 40px;
    }
    
    .office__icon svg {
        width: 24px;
        height: 24px;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.form__input:focus,
.form__textarea:focus,
.nav__link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --text-primary: #000000;
        --text-secondary: #333333;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .btn,
    .contact__form {
        display: none;
    }
    
    .hero,
    .about,
    .experience,
    .specializations,
    .contact {
        padding: var(--spacing-md) 0;
    }
    
    .section__title {
        color: #000000;
    }
}