/* Root Variables */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

/* Header Styles */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.75rem;
    color: var(--primary-color);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.nav-menu a:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--bg-white);
    padding: 1rem 2.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.cta-button:hover {
    background-color: #d97706;
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Content Sections */
.content-section {
    padding: 5rem 0;
}

.content-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    font-weight: 700;
}

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

/* Tips Grid */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tip-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.tip-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

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

.tip-card p {
    color: var(--text-light);
    line-height: 1.8;
}

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

.column h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.checklist {
    list-style: none;
    padding-left: 0;
}

.checklist li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
    border-bottom: 1px solid var(--border-color);
}

.checklist li:last-child {
    border-bottom: none;
}

.checklist li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

/* Interview Guide */
.interview-guide {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.guide-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

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

.guide-item p {
    color: var(--text-light);
    line-height: 1.8;
}

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

.strategy-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--accent-color);
}

.strategy-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.strategy-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Insights */
.insights {
    max-width: 900px;
    margin: 2rem auto;
    text-align: left;
}

.insights p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Blog Section */
.blog-intro {
    text-align: center;
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.blog-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    border-top: 3px solid var(--primary-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--accent-color);
}

.blog-date {
    font-size: 0.875rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.blog-card h3 a {
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
}

.blog-card h3 a:hover {
    color: var(--primary-color);
}

.blog-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.read-more:hover {
    color: var(--secondary-color);
    gap: 0.75rem;
}

/* About Section */
.about-section {
    background: linear-gradient(to bottom, var(--bg-white), var(--bg-light));
    padding: 5rem 0;
}

.about-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    font-weight: 700;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    text-align: justify;
}

.about-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Blog Post Page Styles */
.blog-post-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 4rem 2rem 3rem;
    text-align: center;
}

.blog-post-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.blog-post-meta {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.blog-post-content {
    max-width: 800px;
    margin: 3rem auto;
    padding: 0 2rem;
}

.blog-post-content h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.blog-post-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.blog-post-content p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.blog-post-content ul,
.blog-post-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.blog-post-content li {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.blog-post-content strong {
    color: var(--text-dark);
    font-weight: 600;
}

.highlight-box {
    background: var(--bg-light);
    border-left: 4px solid var(--accent-color);
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    border-radius: 0.5rem;
}

.highlight-box h3 {
    margin-top: 0;
}

.back-to-blog {
    display: inline-block;
    margin: 3rem auto;
    padding: 1rem 2rem;
    background-color: var(--primary-color);
    color: var(--bg-white);
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.back-to-blog:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

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

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

.footer-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--bg-white);
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #9ca3af;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1.5rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .content-section h2 {
        font-size: 2rem;
    }

    .tips-grid,
    .content-columns,
    .interview-guide,
    .strategies {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 4rem 1rem;
    }

    .content-section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.75rem;
    }

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

    .content-section h2 {
        font-size: 1.75rem;
    }

    .tip-card,
    .guide-item,
    .strategy-card {
        padding: 1.5rem;
    }
}

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

/* Print Styles */
@media print {
    .header,
    .footer,
    .cta-button {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    .content-section {
        page-break-inside: avoid;
    }
}