/* ========================================
   OPTIMUM PROFESSIONAL SOLUTIONS - STYLES
   Premium Corporate Consulting Website
   ======================================== */

/* ========== ROOT VARIABLES ========== */
:root {
    --color-primary: #81d8d0;
    --color-primary-dark: #5fc5bc;
    --color-primary-light: #a3e5df;
    --color-primary-glow: rgba(129, 216, 208, 0.3);
    
    --color-black: #000000;
    --color-dark: #0a0a0a;
    --color-gray-dark: #1a1a1a;
    --color-gray: #333333;
    --color-gray-light: #666666;
    --color-gray-lighter: #999999;
    --color-white: #ffffff;
    --color-off-white: #f8f8f8;
    
    /* ADA Compliant Colors */
    --color-ada-teal: #2C837B;
    --color-ada-teal-light: #4BA29A;
    --color-ada-gray: #767676;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 40px var(--color-primary-glow);
}

/* ========== GLOBAL RESET ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--color-black);
    line-height: 1.2;
    font-weight: 600;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

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

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

/* ========== UTILITIES ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-ada-teal);
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-light);
    line-height: 1.8;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--color-ada-teal-light);
    color: var(--color-white);
    border-color: var(--color-ada-teal-light);
}

.btn-primary:hover {
    background: var(--color-ada-teal);
    border-color: var(--color-ada-teal);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-black);
}

.btn-outline {
    background: transparent;
    color: var(--color-ada-teal);
    border-color: var(--color-ada-teal);
}

.btn-outline:hover {
    background: var(--color-ada-teal);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(129, 216, 208, 0.1);
}

.navbar.scrolled {
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-ops {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: 0 0 20px var(--color-primary-glow);
    font-family: var(--font-display);
    letter-spacing: -1px;
}

.logo-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
    font-family: var(--font-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-white);
    position: relative;
}

.nav-link:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-smooth);
}

.nav-link:not(.btn-primary):hover::after {
    width: 100%;
}

.nav-link.btn-primary {
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-fast);
}

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-black) 100%);
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, var(--color-primary-glow) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, var(--color-primary-glow) 0%, transparent 50%);
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.hero-title-main {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.1;
}

.hero-title-sub {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 5rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
    padding-top: 3rem;
    border-top: 1px solid rgba(129, 216, 208, 0.2);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* ========== ABOUT SECTION ========== */
.about {
    padding: 8rem 0;
    background: var(--color-white);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.feature-card {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--color-white);
    border: 2px solid var(--color-off-white);
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-black);
    border-radius: 50%;
    font-size: 2rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.7;
}

/* ========== SERVICES SECTION ========== */
.services {
    padding: 8rem 0;
    background: linear-gradient(180deg, var(--color-off-white) 0%, var(--color-white) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--color-white);
    padding: 3rem;
    border-radius: 16px;
    border: 2px solid transparent;
    transition: var(--transition-smooth);
    position: relative;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.service-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-white) 0%, rgba(129, 216, 208, 0.05) 100%);
}

.service-card.premium {
    border-color: var(--color-black);
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-black) 100%);
    color: var(--color-white);
}

.service-card.premium * {
    color: var(--color-white);
}

.service-card.premium .service-title,
.service-card.premium h4 {
    color: var(--color-primary);
}

.service-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: var(--color-black);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

/* ADA Compliant: SMB Tier badge */
.service-card:not(.featured):not(.premium) .service-badge {
    background: var(--color-ada-teal-light);
    color: var(--color-white);
}

.service-card.premium .service-badge {
    background: var(--color-white);
    color: var(--color-black);
}

.service-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--color-ada-teal);
}

.service-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-ada-teal);
    font-family: var(--font-display);
    margin-bottom: 1.5rem;
}

.service-price-range {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
    margin-bottom: 1.5rem;
}

.service-card.premium .service-price,
.service-card.premium .service-price-range {
    color: var(--color-primary);
}

.service-description {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--color-gray-light);
}

.service-card.premium .service-description {
    color: rgba(255, 255, 255, 0.8);
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
}

.service-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1rem;
    color: var(--color-gray);
}

.service-card.premium .service-features li {
    color: rgba(255, 255, 255, 0.9);
}

.service-features i {
    color: var(--color-primary);
    font-size: 1.125rem;
}

.service-tiers {
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.tier {
    padding: 1.5rem;
    background: rgba(129, 216, 208, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(129, 216, 208, 0.2);
}

.service-card.premium .tier {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(129, 216, 208, 0.2);
}

.tier h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-black);
}

.service-card.premium .tier h4 {
    color: var(--color-primary);
}

.tier-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.tier-features {
    list-style: none;
}

.tier-features li {
    padding: 0.5rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--color-gray-light);
}

.service-card.premium .tier-features li {
    color: rgba(255, 255, 255, 0.8);
}

.tier-features i {
    color: var(--color-primary);
    font-size: 0.75rem;
    margin-top: 0.35rem;
}

.service-timeline {
    font-size: 0.95rem;
    color: var(--color-ada-gray);
    font-style: italic;
    margin: 1.5rem 0;
    text-align: center;
}

.service-card.premium .service-timeline {
    color: rgba(255, 255, 255, 0.6);
}

.service-card .btn {
    margin-top: auto;
}

.services-note {
    text-align: center;
    max-width: 800px;
    margin: 4rem auto 0;
    padding: 2rem;
    background: rgba(129, 216, 208, 0.1);
    border-radius: 12px;
    border: 1px solid var(--color-primary);
}

.services-note p {
    font-size: 1.125rem;
    color: var(--color-gray);
    margin: 0;
}

/* ========== PROCESS SECTION ========== */
.process {
    padding: 8rem 0;
    background: var(--color-white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.process-step {
    position: relative;
    padding: 2.5rem 2rem;
    background: var(--color-off-white);
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.process-step:hover {
    transform: translateY(-10px);
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
}

.step-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
    opacity: 0.3;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    line-height: 1;
}

.step-content {
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.step-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-light);
}

/* ========== CTA SECTION ========== */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-black) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, var(--color-primary-glow) 0%, transparent 60%),
        radial-gradient(circle at 70% 50%, var(--color-primary-glow) 0%, transparent 60%);
    opacity: 0.4;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
}

/* ========== CONTACT SECTION ========== */
.contact {
    padding: 8rem 0;
    background: var(--color-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(129, 216, 208, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-black);
}

.contact-item a {
    color: var(--color-ada-teal);
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item p {
    color: var(--color-gray-light);
    line-height: 1.6;
    margin: 0;
}

/* ========== FORM STYLES ========== */
.contact-form {
    background: var(--color-off-white);
    padding: 3rem;
    border-radius: 16px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-family: var(--font-primary);
    border: 2px solid transparent;
    border-radius: 8px;
    background: var(--color-white);
    color: var(--color-gray);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    background: rgba(129, 216, 208, 0.1);
    color: var(--color-primary-dark);
    border: 1px solid var(--color-primary);
    display: block;
}

.form-message.error {
    background: rgba(255, 59, 48, 0.1);
    color: #c41e3a;
    border: 1px solid #c41e3a;
    display: block;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-image {
    height: 60px;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    font-style: italic;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: var(--color-primary);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(129, 216, 208, 0.1);
    color: var(--color-primary);
    border-radius: 50%;
    font-size: 1.125rem;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(129, 216, 208, 0.2);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 0;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: var(--transition-smooth);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about,
    .services,
    .process,
    .contact {
        padding: 5rem 0;
    }
    
    .about-features,
    .services-grid,
    .process-steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .logo-text {
        display: none;
    }
    
    .logo-image {
        height: 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .section-header {
        margin-bottom: 3rem;
    }
    
    .service-card,
    .contact-form {
        padding: 2rem 1.5rem;
    }
    
    .process-step {
        padding: 2rem 1.5rem;
    }
    
    .step-number {
        font-size: 3rem;
        top: 0.75rem;
        right: 1rem;
    }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

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

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}