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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-gradient: linear-gradient(135deg, #2d3561 0%, #1e1e2e 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f5576c;
    --dark-color: #1e1e2e;
    --light-color: #f8f9ff;
    --text-color: #2d3561;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background: var(--light-color);
}

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

/* Navigation with Glass Effect */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-gradient);
    transition: width 0.3s;
    border-radius: 2px;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section with Animated Gradient */
.hero {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe, #43e97b);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    color: white;
    padding: 180px 0 120px;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    25% {
        background-position: 50% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    75% {
        background-position: 50% 100%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(100px, 100px);
    }
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-content {
    flex: 1.2;
    text-align: left;
    position: relative;
    z-index: 1;
}

.hero-visual {
    flex: 0.8;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
    animation: zoomIn 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.profile-pic-container {
    position: relative;
    width: 380px;
    height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blob-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.2) 100%);
    backdrop-filter: blur(5px);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: blobMove 10s linear infinite alternate;
    border: 2px solid rgba(255,255,255,0.5);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

@keyframes blobMove {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    100% { border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%; }
}

.profile-pic-container img {
    width: 320px;
    height: 320px;
    object-fit: cover;
    border-radius: 50%;
    border: 8px solid white;
    box-shadow: 0 15px 45px rgba(0,0,0,0.3);
    z-index: 2;
    position: relative;
}

.profile-placeholder {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: white;
    border: 4px dashed rgba(255,255,255,0.5);
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    animation: fadeInLeft 1s;
    line-height: 1.1;
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-title .greeting {
    font-size: 1.25rem;
    font-weight: 400;
    display: block;
    margin-bottom: 0.5rem;
    opacity: 0.9;
    color: white;
}

.hero-title .name {
    display: block;
    background: linear-gradient(135deg, #ffffff 0%, #ffd89b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 4.8rem;
    font-weight: 900;
    letter-spacing: -2px;
    animation: nameGlow 3s ease-in-out infinite;
}

.hero-subtitle {
    font-size: 1.6rem;
    margin-bottom: 2.5rem;
    animation: fadeInLeft 1s 0.2s backwards;
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.4;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-start;
    animation: fadeInLeft 1s 0.4s backwards;
}

@media (max-width: 1024px) {
    .hero .container {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 40px;
        gap: 3rem;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-title .name {
        font-size: 3.5rem;
    }
    
    .profile-pic-container {
        width: 250px;
        height: 250px;
        margin-top: 2rem;
    }
    
    .profile-pic-container img, .profile-placeholder {
        width: 210px;
        height: 210px;
    }
}

@media (max-width: 480px) {
    .profile-pic-container {
        width: 200px;
        height: 200px;
    }
    
    .profile-pic-container img, .profile-placeholder {
        width: 170px;
        height: 170px;
        border-width: 5px;
    }
    
    .profile-placeholder {
        font-size: 4rem;
    }
}

.btn {
    padding: 14px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    font-weight: 700;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    background: rgba(255, 255, 255, 0.95);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
    backdrop-filter: blur(10px);
    font-weight: 700;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

/* Floating Shapes */
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 0;
}

.shape {
    position: absolute;
    opacity: 0.1;
    animation: float 20s infinite;
}

.shape:nth-child(1) {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    top: 10%;
    left: 10%;
    animation: float 20s infinite, shapeColor 15s infinite;
}

.shape:nth-child(2) {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 30%;
    top: 60%;
    left: 80%;
    animation: float 20s infinite 2s, shapeColor 15s infinite 5s;
}

.shape:nth-child(3) {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20%;
    top: 80%;
    left: 20%;
    animation: float 20s infinite 4s, shapeColor 15s infinite 10s;
}

@keyframes shapeColor {
    0%, 100% {
        background: rgba(255, 255, 255, 0.15);
    }
    25% {
        background: rgba(255, 216, 155, 0.2);
    }
    50% {
        background: rgba(67, 233, 123, 0.2);
    }
    75% {
        background: rgba(79, 172, 254, 0.2);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

/* Section Styles */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 4rem;
    color: var(--dark-color);
    position: relative;
    font-weight: 800;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 5px;
    background: var(--primary-gradient);
    margin: 1.5rem auto;
    border-radius: 3px;
}

/* About Section */
.about {
    background: white;
    position: relative;
}

.about-text p {
    font-size: 1.2rem;
    line-height: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    color: #4a5568;
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.skill-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.skill-icon {
    font-size: 3.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.skill-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
}

.skill-level {
    color: #718096;
    font-size: 1rem;
}

/* Projects Section */
.projects {
    background: white;
}

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

.project-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    padding: 0;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 0;
}

.project-card:hover::before {
    opacity: 0.05;
}

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.project-content {
    padding: 2.5rem 2.5rem 1rem;
    flex-grow: 1;
}

.project-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.project-image-container {
    width: 120px;
    height: 120px;
    position: relative;
    padding: 5px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid white;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: white;
}

.project-card:hover .project-image {
    transform: scale(1.1) rotate(3deg);
}

.project-info {
    flex: 1;
}

.project-body {
    text-align: center;
}

.project-footer {
    padding: 1.5rem 2.5rem 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.project-title {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
    font-weight: 700;
}

.project-description {
    color: #4a5568;
    margin-bottom: 0;
    line-height: 1.8;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
    margin-top: 1rem;
}

.tech-tag {
    background: var(--primary-gradient);
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
    font-size: 1.05rem;
}

.project-link:hover {
    gap: 1rem;
}

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

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 2.5rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.contact-item:hover::before {
    transform: scaleX(1);
}

.contact-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.contact-icon {
    font-size: 3rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.contact-label {
    font-weight: 700;
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
    color: var(--dark-color);
}

.contact-value a {
    color: #4a5568;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-value a:hover {
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--dark-gradient);
    color: white;
    text-align: center;
    padding: 3rem 0;
}

.footer a {
    color: #ffd89b;
    text-decoration: none;
    transition: color 0.3s;
}

.footer a:hover {
    color: white;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding-bottom: 70px; /* Space for bottom nav */
    }

    .hamburger {
        display: none; /* Hide hamburger on mobile, use bottom nav instead */
    }

    .navbar {
        display: none; /* Hide top navbar on mobile */
    }

    .hero {
        padding: 80px 0 60px;
        margin-top: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero .container {
        flex-direction: column-reverse;
        gap: 2rem;
    }

    .hero-visual {
        width: 100%;
        margin-bottom: 1rem;
    }

    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
    }

    .hero-title .greeting {
        font-size: 1rem;
        margin-bottom: 0.3rem;
    }

    .hero-title .name {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2.5rem;
    }

    .container {
        padding: 0 15px;
    }

    .skills-grid,
    .projects-grid,
    .contact-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .project-card,
    .skill-card,
    .contact-item {
        padding: 1.5rem;
    }

    .project-title {
        font-size: 1.4rem;
    }

    .skill-name {
        font-size: 1.2rem;
    }

    /* Bottom Navigation */
    .bottom-nav {
        display: flex;
    }
}

/* Bottom Navigation */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 8px 0;
    justify-content: space-around;
    align-items: center;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #718096;
    font-size: 0.75rem;
    padding: 8px 12px;
    border-radius: 12px;
    transition: all 0.3s;
    min-width: 60px;
}

.bottom-nav-item i {
    font-size: 1.3rem;
    margin-bottom: 4px;
}

.bottom-nav-item span {
    font-weight: 600;
}

.bottom-nav-item.active {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.bottom-nav-item:active {
    transform: scale(0.95);
}

/* Tablet Responsive */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

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

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

/* Large Desktop */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
}

/* Back to Top Button */
/* Project Preview Modal Styles */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    z-index: 2000;
    display: none;
    flex-direction: column;
}

.project-modal.active {
    display: flex;
}

.modal-header {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    padding: 0.8rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: #475569;
    font-weight: 600;
}

.modal-info i {
    color: #10b981; /* Safe green */
}

.modal-close {
    background: #ef4444;
    color: white;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 8px;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.modal-close:hover {
    background: #dc2626;
    transform: rotate(90deg);
}

.modal-body {
    flex: 1;
    position: relative;
}

#projectFrame {
    width: 100%;
    height: 100%;
    border: none;
}

.modal-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

@media (max-width: 768px) {
    .modal-header {
        padding: 0.5rem 1rem;
    }
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    font-size: 1.2rem;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Install App Button Style */
.install-app-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: var(--success-gradient);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: none;
    align-items: center;
    gap: 10px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: floatBtn 3s ease-in-out infinite;
}

.install-app-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.install-app-btn i {
    font-size: 1.1rem;
}

@keyframes floatBtn {
    0% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

.projects-controls {
    display: flex;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.items-per-page {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    box-shadow: var(--shadow-sm);
}

.items-per-page label {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 500;
}

.items-per-page select {
    border: 1px solid #e2e8f0;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: all 0.3s;
}

.items-per-page select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.pagination {
    margin-top: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.pagination-info {
    font-size: 0.9rem;
    color: #64748b;
}

.pagination-buttons {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.pagination-buttons button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #e2e8f0;
    background: white;
    color: #475569;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pagination-buttons button:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pagination-buttons button.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.pagination-buttons button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f8fafc;
}

.pagination-buttons .dots {
    color: #94a3b8;
    margin: 0 0.2rem;
}

.page-nav {
    font-size: 0.8rem;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.6);
}

.back-to-top:active {
    transform: scale(0.95);
}

.back-to-top i {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Adjust for mobile with bottom nav */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 90px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }

    .install-app-btn {
        bottom: 95px;
        left: 20px;
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}

.login-prompt {
    color: #64748b;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.login-prompt:hover {
    color: var(--primary-color);
}

.login-prompt i {
    font-size: 0.8rem;
}
/* Login Modal Styles */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
}

.login-modal.active {
    display: flex;
}

.login-content {
    background: white;
    width: 90%;
    max-width: 400px;
    padding: 2.5rem;
    border-radius: 20px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    color: #1e293b;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: #64748b;
    font-size: 0.95rem;
}

.modal-close-simple {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: #94a3b8;
    cursor: pointer;
    line-height: 1;
}

.login-form .form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #475569;
}

.login-form input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-family: inherit;
    transition: all 0.3s;
}

.login-form input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    transition: all 0.3s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-error {
    margin-top: 1rem;
    color: #ef4444;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
}

/* Update bottom nav for mobile alignment */
@media (max-width: 768px) {
    .bottom-nav {
        grid-template-columns: repeat(5, 1fr);
    }
}