/* ============================================
   PROTON EDUCATION CONSULTANCY - MAIN STYLES
   ============================================ */

/* Spinner Animation */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Visually indicate button is disabled */
.btn-loading {
    opacity: 0.7;
    cursor: not-allowed !important;
}

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

:root {
    --primary-color: #1a4d7a;
    --secondary-color: #2c7fb8;
    --accent-color: #ff6b35;
    --dark-bg: #0d2a42;
    --light-bg: #f5f7fa;
    --text-dark: #2c3e50;
    --text-light: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #ffffff;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    background-color: var(--primary-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 55px;
    width: 55px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    padding: 0.75rem 1.25rem;
    display: block;
    transition: background-color 0.3s ease;
    border-radius: 4px;
    font-weight: 500;
}

/* Prevent menu labels from breaking into multiple lines on desktop */
@media (min-width: 769px) {
    .nav-links a {
        white-space: nowrap;
    }

    .logo span {
        white-space: nowrap;
    }
}

.nav-links a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--dark-bg);
    min-width: 200px;
    box-shadow: var(--shadow-hover);
    border-radius: 4px;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    list-style: none;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    width: 100%;
}

.dropdown-menu a {
    padding: 0.75rem 1.5rem;
    border-radius: 0;
}

.dropdown-menu a:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Mobile Menu Toggle */
.burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    height: 90vh;
    min-height: 600px;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--text-light);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 77, 122, 0.85) 0%, rgba(13, 42, 66, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--accent-color);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
    cursor: pointer;
}

.btn:hover {
    background-color: #e55a2a;
    border-color: #e55a2a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--text-light);
    color: var(--text-light);
}

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

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

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

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: 5rem 2rem;
}

/* Section with background image */
.section-bg {
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    color: var(--text-light);
}

.section-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 77, 122, 0.85) 0%, rgba(13, 42, 66, 0.75) 100%);
    z-index: 0;
}

.section-bg .container {
    position: relative;
    z-index: 1;
}

.section-bg .section-title,
.section-bg .section-subtitle {
    color: var(--text-light);
}

.section-bg .section-subtitle {
    opacity: 0.95;
}

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    background-color: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #555;
}

.about-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* ============================================
   SERVICES GRID
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-top: 4px solid var(--accent-color);
}

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

.service-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-card p {
    color: #666;
    line-height: 1.7;
}

/* ============================================
   DESTINATIONS GRID
   ============================================ */

.destinations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.destination-card {
    position: relative;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.destination-card:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-hover);
}

.destination-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    z-index: 1;
}

.destination-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.destination-card:hover img {
    transform: scale(1.1);
}

.destination-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    z-index: 2;
    color: var(--text-light);
}

.destination-info h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.destination-info p {
    font-size: 1rem;
    opacity: 0.9;
}

/* ============================================
   TESTIMONIALS
   ============================================ */

.testimonials-section {
    background-color: var(--light-bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background-color: #ffffff;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    font-size: 5rem;
    color: var(--secondary-color);
    opacity: 0.2;
    font-family: Georgia, serif;
}

.testimonial-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.author-info p {
    color: #666;
    font-size: 0.9rem;
}

/* ============================================
   CTA BANNER
   ============================================ */

.cta-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-light);
    text-align: center;
    padding: 4rem 2rem;
}

.cta-banner h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-banner p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* ============================================
   UNIVERSITIES GRID
   ============================================ */

.universities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.university-card {
    background-color: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.university-image {
    height: 200px;
    overflow: hidden;
}

.university-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.university-card:hover .university-image img {
    transform: scale(1.1);
}

.university-info {
    padding: 1.5rem;
}

.university-info h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.university-info p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.university-info .location {
    color: var(--secondary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ============================================
   SCHOLARSHIPS GRID
   ============================================ */

.scholarships-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.scholarship-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--accent-color);
    transition: all 0.3s ease;
}

.scholarship-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-hover);
}

.scholarship-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.scholarship-card .amount {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.scholarship-card .details {
    color: #666;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.scholarship-card .eligibility {
    background-color: var(--light-bg);
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.scholarship-card .eligibility h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.scholarship-card .eligibility ul {
    list-style: none;
    padding-left: 0;
}

.scholarship-card .eligibility li {
    padding: 0.25rem 0;
    color: #555;
    padding-left: 1.5rem;
    position: relative;
}

.scholarship-card .eligibility li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-section {
    background-color: var(--light-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-top: 0.5rem;
}

.contact-item-content h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.contact-item-content p {
    color: #666;
    line-height: 1.7;
}

.contact-form {
    background-color: #ffffff;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 3rem 2rem 1.5rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--text-light);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.social-media {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-media a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--text-light);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-media a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 968px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }

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

    .destinations-grid,
    .universities-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .burger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: right 0.3s ease;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        padding: 1rem;
        border-radius: 0;
    }

    .dropdown-menu {
        position: static;
        display: none;
        background-color: rgba(0, 0, 0, 0.2);
        box-shadow: none;
        margin-top: 0;
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .hero {
        height: 70vh;
        min-height: 500px;
        background-attachment: scroll;
    }

    .section-bg {
        background-attachment: scroll;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

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

    section {
        padding: 3rem 1.5rem;
    }

    .services-grid,
    .testimonials-grid,
    .scholarships-grid {
        grid-template-columns: 1fr;
    }

    .destinations-grid {
        grid-template-columns: 1fr;
    }

    .universities-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .cta-banner h2 {
        font-size: 2rem;
    }

    .cta-banner p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 1rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}

/* ============================================
   WHATSAPP CHAT BUTTON
   ============================================ */

.whatsapp-chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: #fff;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    z-index: 9999;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-chat-button:hover {
    background-color: #20BA5A;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-chat-button:active {
    transform: scale(0.95);
}

.whatsapp-chat-button i {
    font-size: 28px;
}

/* Pulse animation for WhatsApp button */
@keyframes pulse {
    0% {
        box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.6);
    }
    100% {
        box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    }
}

/* Responsive adjustments for WhatsApp button */
@media (max-width: 768px) {
    .whatsapp-chat-button {
        width: 50px;
        height: 50px;
        bottom: 15px;
        right: 15px;
        font-size: 24px;
    }
    
    .whatsapp-chat-button i {
        font-size: 24px;
    }
}

/* ============================================
   COST ESTIMATE BLOCK
   ============================================ */

.cost-estimate-block {
    animation: fadeInUp 0.6s ease;
}

.cost-table-container {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cost-table-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.cost-table {
    font-size: 1rem;
}

.cost-table td {
    word-wrap: break-word;
}

/* Responsive adjustments for cost table */
@media (max-width: 768px) {
    .cost-estimate-block h3 {
        font-size: 1.25rem !important;
    }
    
    .cost-table-container {
        padding: 1rem !important;
    }
    
    .cost-table {
        font-size: 0.9rem;
    }
    
    .cost-table td {
        padding: 0.5rem 0 !important;
        font-size: 0.95rem !important;
    }
    
    .cost-table td:last-child {
        font-size: 1rem !important;
    }
    
    .cost-table tr:last-child td {
        font-size: 1.1rem !important;
    }
}

@media (max-width: 480px) {
    .cost-table {
        font-size: 0.85rem;
    }
    
    .cost-table td {
        padding: 0.4rem 0 !important;
        font-size: 0.9rem !important;
    }
    
    .cost-table td:first-child {
        padding-right: 0.5rem;
    }
    
    .cost-table td:last-child {
        font-size: 0.95rem !important;
    }
    
    .cost-table tr:last-child td {
        font-size: 1rem !important;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}