/*
 * Peer-Review Platform for Academic Authors
 * Main CSS File - Bootstrap 5 Integration
 * Conservative design with pastel high-contrast colors
 */

/* CSS Variables - Color Palette */
:root {
    /* Primary Colors */
    --primary-blue: #6581bf;
    --primary-green: #6ebd98;
    --primary-purple: #af93e4;
    --primary-orange: #dcb481;
    --primary-teal: #44999e;
    
    /* Light Shades */
    --light-blue: #e5eaf4;
    --light-green: #e7fff3;
    --light-purple: #ffffff;
    --light-orange: #ffffff;
    --light-teal: #d2f3ef;
    
    /* Dark Shades */
    --dark-blue: #324177;
    --dark-green: #437a5e;
    --dark-purple: #745190;
    --dark-orange: #b07c3f;
    --dark-teal: #377878;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #80878e;
    --dark-gray: #454e54;
    --black: #000000;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.5;
    
    /* Spacing */
    --section-padding: 4rem 0;
    --container-max-width: 1200px;
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--dark-gray);
    background-color: var(--white);
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.51rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.86rem;
}

h4 {
    font-size: 1.53rem;
}

h5 {
    font-size: 1.37rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--gray);
}

/* Header Styles */
.navbar {
    background-color: var(--white);
    box-shadow: 0 7px 9px rgba(0,0,0,0.1);
    padding: 1rem 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 11px rgba(0,0,0,0.15);
    padding: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.53rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--dark-blue);
}

.navbar-nav .nav-link {
    color: var(--gray);
    font-weight: 500;
    margin: 0 0.5rem;
    transition: var(--transition-base);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-blue);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-teal) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--section-padding);
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 1.63rem;
}

.hero-content p {
    font-size: 1.30rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

/* Section Styles */
.section {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.57rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.27rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Card Styles */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 8px 6px rgba(0,0,0,0.1);
    transition: var(--transition-base);
    margin-bottom: 2rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

.card-header {
    background-color: var(--light-blue);
    border-bottom: 1px solid var(--primary-blue);
    padding: 1.5rem;
    border-radius: 0.75rem 0.75rem 0 0;
}

.card-body {
    padding: 2rem;
}

.card-title {
    color: var(--dark-blue);
    font-size: 1.55rem;
    margin-bottom: 1rem;
}

.card-text {
    color: var(--gray);
    margin-bottom: 1.75rem;
}

/* Button Styles */
.btn {
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: var(--dark-blue);
    border-color: var(--dark-blue);
    color: var(--white);
}

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

.btn-secondary:hover {
    background-color: var(--dark-green);
    border-color: var(--dark-green);
    color: var(--white);
}

/* Price Badge */
.price-badge {
    background-color: var(--primary-orange);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    display: inline-block;
}

/* Team Member Cards */
.team-member {
    text-align: center;
    margin-bottom: 2rem;
}

.team-member img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 4px solid var(--primary-blue);
}

.team-member h4 {
    color: var(--dark-blue);
    margin-bottom: 0.57rem;
}

.team-member p {
    color: var(--primary-green);
    font-weight: 500;
}

/* Form Styles */
.form-control {
    border-radius: 0.5rem;
    border: 2px solid var(--light-gray);
    padding: 0.75rem;
    transition: var(--transition-base);
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(84, 131, 183, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--dark-gray);
    margin-bottom: 0.74rem;
}

/* Footer */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer h5 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.footer a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    border-top: 1px solid var(--gray);
    padding-top: 1rem;
    margin-top: 2rem;
    text-align: center;
}

/* Gallery */
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-base);
}

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

/* FAQ Cards */
.faq-card {
    background-color: var(--light-gray);
    border-left: 4px solid var(--primary-blue);
    margin-bottom: 1rem;
}

.faq-question {
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 0.58rem;
}

.faq-answer {
    color: var(--gray);
}

/* Blog Cards */
.blog-card {
    background-color: var(--white);
    border: 1px solid var(--light-gray);
    transition: var(--transition-base);
}

.blog-card:hover {
    border-color: var(--primary-blue);
}

.blog-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-excerpt {
    color: var(--gray);
    font-size: 0.93rem;
}

/* Utilities */
.text-primary {
    color: var(--primary-blue);
}

.text-secondary {
    color: var(--primary-green);
}

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

.bg-primary {
    background-color: var(--primary-blue);
}

.bg-secondary {
    background-color: var(--primary-green);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .team-member img {
        width: 150px;
        height: 150px;
    }
}

/* Decorative Elements */
.decorative-shape {
    position: absolute;
    z-index: -1;
    opacity: 0.1;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    top: 10%;
    right: 10%;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background-color: var(--primary-green);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    bottom: 10%;
    left: 10%;
}

/* Process Steps */
.process-step {
    position: relative;
    display: inline-block;
    margin-bottom: 1rem;
}

.step-number {
    position: absolute;
    top: -10px;
    right: -10px;
    background-color: var(--primary-orange);
    color: var(--white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.87rem;
}



/* Contact Info Styles */
.contact-info {
    background-color: var(--light-blue);
    padding: 2rem;
    border-radius: 0.75rem;
    margin-bottom: 2rem;
}

.contact-info h5 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--gray);
    margin-bottom: 0.65rem;
}

.contact-info i {
    color: var(--primary-blue);
    margin-right: 0.5rem;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    max-width: 400px;
    background-color: var(--white);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.notification-content {
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification-info {
    background-color: var(--light-blue);
    border-left: 4px solid var(--primary-blue);
}

.notification-success {
    background-color: var(--light-green);
    border-left: 4px solid var(--primary-green);
}

.notification-error {
    background-color: var(--light-orange);
    border-left: 4px solid var(--primary-orange);
}

.notification-warning {
    background-color: var(--light-purple);
    border-left: 4px solid var(--primary-purple);
}

.notification i {
    font-size: 1.29rem;
}

.notification-info i {
    color: var(--primary-blue);
}

.notification-success i {
    color: var(--primary-green);
}

.notification-error i {
    color: var(--primary-orange);
}

.notification-warning i {
    color: var(--primary-purple);
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--dark-blue);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 6px;
} 


/* Team Social Links - Square Style */
.team-social-links {
    margin-top: 18px;
    padding: 12px 0;
}

.social-icons-grid {
    display: flex;
    gap: 12px;
    justify-content: center;
    align-items: center;
}

.social-link {
    display: inline-flex;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 17px;
    transition: all 0.3s ease;
    box-shadow: 0 3px 12px rgba(0,0,0,0.15);
    position: relative;
}

.social-link:hover {
    transform: translateY(-2px) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    color: white;
}

.facebook-link {
    background: #1877f2;
    border: 2px solid #1877f2;
}

.facebook-link:hover {
    background: #166fe5;
    border-color: #166fe5;
}

.linkedin-link {
    background: #0a66c2;
    border: 2px solid #0a66c2;
}

.linkedin-link:hover {
    background: #0959aa;
    border-color: #0959aa;
}

.x-link {
    background: #000000;
    border: 2px solid #000000;
    position: relative;
}

.x-link::after {
    content: '✕';
    font-weight: bold;
    font-size: 18px;
}

.x-link:hover {
    background: #333333;
    border-color: #333333;
}

.x-link i {
    display: none;
}

@media (max-width: 768px) {
    .social-icons-grid {
        gap: 8px;
    }
    
    .social-link {
        width: 38px;
        height: 38px;
        font-size: 15px;
    }
}