/* ========================================
   HR CONSULTANT - Main Stylesheet
   Brand Colors: #f1c232, #000000, #ffe599
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    /* Brand Colors */
    --brand-primary: #f1c232;
    --brand-light: f4f1ec;
    --brand-dark: #d4a820;
    --dark: #1a1a1a;
    --dark-secondary: #2d2d2d;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Playfair Display', 'Inter', serif;
    
    /* Spacing */
    --container-max: 1280px;
    --section-spacing: 80px;
    --card-radius: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 1.5vw, 1.35rem); }

.section-badge {
    display: inline-block;
    background: var(--brand-light);
    color: var(--dark);
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    margin-bottom: 8px;
}

.section-title span {
    color: var(--brand-primary);
}

.section-subtitle {
    color: var(--gray-500);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 48px;
    text-align: center;
}

.text-center { text-align: center; }
.text-brand { color: var(--brand-primary); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--brand-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-dark:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background: var(--brand-primary);
    transform: translateY(-2px);
}

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

.btn-white:hover {
    background: var(--brand-primary);
    transform: translateY(-2px);
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-base);
    background: transparent;
}

.site-header.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: 10px 0;
}

.site-header.scrolled .logo-text,
.site-header.scrolled .nav-link {
    color: var(--gray-800);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo img {
    max-height: 44px;
    width: auto;
}

.logo-text {
    color: var(--white);
    transition: var(--transition-base);
}

.logo-text span {
    color: var(--brand-primary);
}

/* Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 4px 0;
    transition: var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-primary);
    transition: var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--brand-primary);
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-base);
    border-radius: 2px;
}

.site-header.scrolled .mobile-toggle span {
    background: var(--gray-800);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--dark);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    padding: 120px 24px 80px;
}

.hero-content {
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    background: var(--brand-primary);
    color: var(--dark);
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 16px;
}

.hero h1 span {
    color: var(--brand-primary);
}

.hero p {
    color: rgba(255,255,255,0.8);
    font-size: 1.2rem;
    max-width: 500px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stats .stat {
    display: flex;
    flex-direction: column;
}

.hero-stats .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.hero-stats .stat-label {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

/* ===== Section Spacing ===== */
.section {
    padding: var(--section-spacing) 0;
}

.section-light {
    background: var(--gray-50);
}

.section-white {
    background: var(--white);
}

.section-brand-light {
    background: var(--brand-light);
}

/* ===== Services ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--brand-primary);
    transform: scaleX(0);
    transition: var(--transition-base);
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-primary);
}

.service-icon {
    font-size: 2.8rem;
    margin-bottom: 16px;
    display: block;
}

.service-card h3 {
    margin-bottom: 8px;
}

.service-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* ===== Blog ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    border: 1px solid var(--gray-100);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.blog-card-image {
    height: 220px;
    background: var(--gray-200);
    background-size: cover;
    background-position: center;
    position: relative;
}

.blog-card-image .placeholder-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--gray-400);
}

.blog-card-content {
    padding: 24px;
}

.blog-card-meta {
    display: flex;
    gap: 16px;
    color: var(--gray-400);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.blog-card h3 {
    margin-bottom: 8px;
    font-size: 1.2rem;
}

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

.blog-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.blog-card .read-more {
    color: var(--brand-primary);
    font-weight: 600;
}

.blog-card .read-more:hover {
    gap: 8px;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-100);
}

.contact-info-item:last-child {
    border-bottom: none;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    background: var(--brand-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.contact-info-item p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 4px;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition-base);
    font-family: var(--font-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(241, 194, 50, 0.1);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--dark);
    color: var(--gray-300);
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--gray-400);
    font-size: 0.95rem;
    margin-top: 8px;
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    font-size: 1.1rem;
}

.footer-social a:hover {
    background: var(--brand-primary);
    color: var(--dark);
    transform: translateY(-3px);
}

.footer h4 {
    color: var(--white);
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--gray-400);
    transition: var(--transition-base);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--brand-primary);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    /* Mobile Navigation */
    .mobile-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 16px;
        transition: var(--transition-base);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
        align-items: flex-start;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--gray-800);
        font-size: 1.1rem;
    }
    
    .nav-link::after {
        background: var(--brand-primary);
    }
    
    .hero {
        min-height: 90vh;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }
    
    .hero-stats .stat-number {
        font-size: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .section {
        padding: 50px 0;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .container {
        padding: 0 16px;
    }
}