/* Base Styles */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #0f172a;
    --text-color: #1e293b;
    --text-light: #64748b;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --border-radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-light);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

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

section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.primary-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

/* Header & Navigation */
header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    backdrop-filter: blur(5px);
}

#navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    text-decoration: none;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--bg-light);
    border: 2px solid var(--primary-color);
    cursor: pointer;
}

.nav-links {
    display: flex;
}

.nav-links li {
    margin-left: 30px;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .line {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px;
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(-45deg, #f6f9ff, #deeaff, #c7e1ff, #e0eaff);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.hero-text h2 {
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 500px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.profile-img-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background-color: #deeaff;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow);
    border: 5px solid white;
}

.profile-img-placeholder i {
    font-size: 120px;
    color: var(--primary-color);
}

.profile-img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid white;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.profile-img:hover {
    transform: scale(1.05);
}

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

.about-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.personal-details {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Timeline for Experience and Education */
.experience, .education {
    background-color: var(--bg-light);
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background-color: var(--border-color);
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    padding: 20px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
    box-sizing: border-box;
    margin-bottom: 30px;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    right: -10px;
    top: 25px;
    z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

.timeline-content {
    padding: 25px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 10px;
}

.time-period {
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 15px;
}

.timeline-content ul {
    margin-left: 20px;
    list-style: disc;
}

.timeline-content ul li {
    margin-bottom: 8px;
    color: var(--text-light);
}

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

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--secondary-color);
    text-align: center;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.skill-name {
    font-weight: 500;
}

.skill-bar {
    height: 10px;
    background-color: var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 5px;
    transition: var(--transition);
}

/* Projects Section */
.projects {
    background-color: var(--bg-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-img {
    height: 200px;
    background-color: #deeaff;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.project-img-placeholder i {
    font-size: 80px;
    color: var(--primary-color);
}

.project-info {
    padding: 25px;
}

.project-info h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.project-tags span {
    background-color: #deeaff;
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Certifications Section */
.certifications {
    background-color: var(--bg-light);
    padding: 80px 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.certification-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.certification-card:hover {
    transform: translateY(-5px);
}

.certification-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #deeaff;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.certification-icon i {
    font-size: 24px;
    color: var(--primary-color);
}

.certification-info h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--secondary-color);
}

.certification-info p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Contact Section */
.contact {
    background-color: var(--bg-color);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-item {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--text-light);
}

social-links {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

social-links a {
    width: 45px;
    height: 45px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background-color: var(--bg-light);
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: var(--transition);
}

social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.form-group {
    margin-bottom: 20px;
}

input, textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

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

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* Responsive Design */
@media (max-width: 992px) {
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero-text h1 {
        font-size: 3rem;
    }
    
    .hero-text h2 {
        font-size: 1.5rem;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-dot {
        left: 22px !important;
        right: auto !important;
    }
    
    .timeline-item {
        padding-left: 70px;
        padding-right: 20px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 70px 0;
    }
    
    .hero {
        padding: 150px 0 70px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        flex-direction: column-reverse;
    }
    
    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .nav-links {
        position: fixed;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(5px);
        top: 80px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: center;
        height: 0;
        overflow: hidden;
        transition: var(--transition);
    }
    
    .nav-links.active {
        height: 300px;
        padding: 20px 0;
        box-shadow: 0 10px 10px -10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active .line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active .line:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .line:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero-image {
        margin-bottom: 30px;
    }
    
    .profile-img {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
}

/* New Experience Section Styles */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
    gap: 30px;
}

.experience-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.experience-card:hover {
    transform: translateY(-5px);
}

.card-header {
    background-color: #f0f7ff;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid var(--border-color);
}

.role-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.role-info h3 {
    color: var(--secondary-color);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.role-info h4 {
    color: var(--text-color);
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: 5px;
}

.role-info .time-period {
    color: var(--text-light);
    font-style: italic;
    font-size: 0.9rem;
}

.card-body {
    padding: 20px;
}

.card-body ul {
    list-style: disc;
    padding-left: 20px;
}

.card-body li {
    color: var(--text-light);
    margin-bottom: 8px;
}

/* New Education Section Styles */
.education-timeline {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.education-timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--primary-color);
    opacity: 0.3;
    top: 0;
    bottom: 0;
    left: 120px;
    z-index: 1;
}

.education-item {
    display: flex;
    margin-bottom: 40px;
    position: relative;
}

.education-date {
    min-width: 120px;
    text-align: right;
    padding-right: 30px;
    font-weight: bold;
    position: relative;
    display: flex;
    flex-direction: column;
    color: var(--primary-color);
}

.education-date::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    right: -12px;
    background-color: var(--primary-color);
    border: 4px solid white;
    top: 0;
    border-radius: 50%;
    z-index: 2;
}

.education-content {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 25px;
    margin-left: 30px;
    flex-grow: 1;
    display: flex;
    gap: 20px;
    transition: transform 0.3s ease;
}

.education-content:hover {
    transform: translateY(-5px);
}

.education-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #deeaff;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.education-icon i {
    font-size: 20px;
    color: var(--primary-color);
}

.education-details h3 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.education-details h4 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 15px;
}

.education-details ul {
    list-style: disc;
    padding-left: 20px;
}

.education-details li {
    color: var(--text-light);
    margin-bottom: 8px;
}

/* Responsive styles for new sections */
@media (max-width: 992px) {
    .experience-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .education-timeline::after {
        left: 30px;
    }
    
    .education-date {
        min-width: 60px;
        font-size: 0.8rem;
        padding-right: 15px;
    }
    
    .education-date::after {
        right: -8px;
        width: 16px;
        height: 16px;
    }
    
    .education-content {
        margin-left: 15px;
    }
}

@media (max-width: 576px) {
    .education-content {
        flex-direction: column;
    }
    
    .education-icon {
        margin-bottom: 15px;
    }
}

/* Enhanced Card Hover Effects */
.experience-card:hover, .education-content:hover, .project-card:hover, .certification-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.role-icon, .education-icon, .certification-icon {
    transition: transform 0.3s ease;
}

.experience-card:hover .role-icon, .education-content:hover .education-icon, .certification-card:hover .certification-icon {
    transform: scale(1.1) rotate(5deg);
}

/* Animated gradient background for hero section */
.hero {
    background: linear-gradient(-45deg, #f6f9ff, #deeaff, #c7e1ff, #e0eaff);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Resume Template Styles - Used for PDF generation */
#resume-template {
    background-color: white;
    padding: 40px;
    font-family: 'Arial', sans-serif;
    max-width: 800px;
    margin: 0 auto;
}

.resume-container {
    background-color: #fff;
    color: #333;
}

.resume-header {
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 2px solid #2563eb;
    padding-bottom: 15px;
}

.resume-name {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #1e40af;
}

.resume-title {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 10px;
    color: #2563eb;
}

.resume-contact {
    font-size: 14px;
    color: #64748b;
}

.resume-section {
    margin-bottom: 20px;
}

.resume-section h2 {
    font-size: 20px;
    color: #1e40af;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 5px;
    margin-bottom: 10px;
}

.resume-item {
    margin-bottom: 15px;
}

.resume-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

.resume-item-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #0f172a;
}

.resume-item-header span {
    font-size: 14px;
    color: #64748b;
}

.resume-item p {
    font-size: 14px;
    margin-bottom: 5px;
    color: #334155;
}

.resume-item ul {
    padding-left: 20px;
    margin-bottom: 0;
}

.resume-item li {
    font-size: 14px;
    margin-bottom: 3px;
    color: #334155;
}

.skills-section {
    margin-bottom: 20px;
}

.resume-skills {
    display: flex;
    justify-content: space-between;
}

.skill-group {
    flex: 1;
}

.skill-group h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #0f172a;
}

.skill-group ul {
    padding-left: 20px;
}

.skill-group li {
    font-size: 14px;
    margin-bottom: 3px;
    color: #334155;
}

.certification-list {
    list-style-type: disc;
    padding-left: 20px;
}

.certification-list li {
    font-size: 14px;
    margin-bottom: 3px;
    color: #334155;
}

/* Spinner for CV download button */
.spinner {
    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;
    display: inline-block;
    margin-left: 8px;
    vertical-align: middle;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#download-cv.loading span {
    opacity: 0.7;
}

#download-cv.loading .spinner {
    display: inline-block;
}

/* Resume Header Content */
.resume-header-content {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.resume-photo {
    width: 100px;
    flex-shrink: 0;
}

.resume-photo img {
    width: 100%;
    border-radius: 50%;
    border: 2px solid #2563eb;
}

.resume-header-text {
    flex-grow: 1;
}

/* Multi-page Layout Styles */
.page-section {
    padding-top: 150px;
}

.featured-sections {
    background-color: var(--bg-color);
    padding: 80px 0;
}

.featured-sections .container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.section-preview {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.section-preview:hover {
    transform: translateY(-5px);
}

.section-preview h2 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.section-preview p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.section-preview .btn {
    align-self: center;
}

/* Enhanced Featured Sections for Homepage */
.featured-sections {
    background-color: var(--bg-light);
    padding: 80px 0;
}

.featured-sections .section-title {
    margin-bottom: 60px;
}

.sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.section-preview {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.section-preview:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.preview-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: #deeaff;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 25px;
    transition: var(--transition);
}

.preview-icon i {
    font-size: 36px;
    color: var(--primary-color);
    transition: var(--transition);
}

.section-preview:hover .preview-icon {
    transform: scale(1.1) rotate(5deg);
    background-color: var(--primary-color);
}

.section-preview:hover .preview-icon i {
    color: white;
}

.section-preview h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.section-preview p {
    margin-bottom: 25px;
    color: var(--text-light);
    flex-grow: 1;
}

.section-preview .btn {
    margin-top: auto;
}

/* Adding more breathing room to page sections */
.page-section {
    padding-top: 150px;
    min-height: calc(100vh - 100px);
}