/* ==========================================================================
   GLOBAL RESET & VARIABLE ARCHITECTURE
   ========================================================================== */
:root {
    --primary-color: #0b192c; /* Deep Corporate Navy */
    --secondary-color: #1e3e62; /* Architectural Blue */
    --accent-oracle: #f80000; /* Oracle Red tech identity */
    --gold-text: #f1c40f;
    --bg-light: #f8f9fa;
    --bg-dark: #000000;
    --text-main: #333333;
    --text-muted: #666666;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    color: var(--text-main);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==========================================================================
   LAYOUT UTILITY CLASSES
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.text-oracle {
    color: var(--accent-oracle);
    font-weight: 700;
}

.text-gold {
    color: var(--gold-text);
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   TOP SECURITY UTILITY BAR
   ========================================================================== */
.top-bar {
    background-color: #050c16;
    color: #a0aec0;
    font-size: 0.85rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   MAIN NAVIGATION HEADER
   ========================================================================== */
.main-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1.25rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.logo h2 {
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo h2 span {
    color: var(--accent-oracle);
}

.partner-tag {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #a0aec0;
    margin-top: -2px;
}

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

.nav-links a {
    color: #cbd5e0;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-oracle);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent-oracle);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #cc0000;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--white);
}

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

/* ==========================================================================
   HERO / HOMEPAGE SECTION
   ========================================================================== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 6rem 0;
    border-bottom: 4px solid var(--accent-oracle);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 2.75rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero-text p {
    font-size: 1.1rem;
    color: #cbd5e0;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
}

.enterprise-badge {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 2.5rem;
    text-align: center;
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: 3rem;
    color: var(--gold-text);
    margin-bottom: 1rem;
}

/* ==========================================================================
   COMMON SECTION STYLING
   ========================================================================== */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.25rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* ==========================================================================
   ABOUT US SECTION
   ========================================================================== */
.about-section {
    background-color: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.about-card {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 6px;
    border-top: 3px solid var(--secondary-color);
    transition: var(--transition-smooth);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.card-icon {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1.25rem;
}

/* ==========================================================================
   COURSES OFFERED SECTION
   ========================================================================== */
.courses-section {
    background-color: var(--bg-light);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.course-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.course-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.course-header i {
    font-size: 1.25rem;
    color: var(--accent-oracle);
    background-color: rgba(248, 0, 0, 0.05);
    padding: 0.75rem;
    border-radius: 4px;
}

.course-header h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.course-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.tag {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    background-color: #edf2f7;
    color: var(--secondary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

/* ==========================================================================
   CONTACT US SECTION
   ========================================================================== */
.contact-section {
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: center;
}

.contact-info h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    color: var(--text-muted);
}

.info-item i {
    color: var(--secondary-color);
}

.contact-form-container {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e0;
    border-radius: 4px;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(30, 62, 98, 0.1);
}

.form-feedback {
    padding: 0.75rem;
    border-radius: 4px;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.form-feedback.success {
    background-color: #c6f6d5;
    color: #22543d;
}

.form-feedback.error {
    background-color: #fed7d7;
    color: #742a2a;
}

/* ==========================================================================
   ROBUST CORPORATE FOOTER STYLES (FIXED MULTI-COLUMN DESIGN)
   ========================================================================== */
.main-footer {
    background-color: #030914 !important; /* Deep Onyx Black */
    color: #a0aec0 !important;
    padding: 4rem 0 0 0 !important;
    font-size: 0.9rem !important;
    border-top: 2px solid var(--secondary-color) !important;
    width: 100% !important;
    display: block !important;
}

/* Force structural layout alignment across horizontal vectors */
.main-footer .footer-grid {
    display: grid !important;
    grid-template-columns: 2fr 1fr 1fr !important;
    gap: 3rem !important;
    padding-bottom: 3rem !important;
}

.footer-brand h3 {
    color: var(--white) !important;
    font-size: 1.5rem !important;
    margin-bottom: 0.25rem !important;
    font-weight: 800 !important;
}

.footer-brand h3 span {
    color: var(--accent-oracle) !important;
}

.copyright-text {
    margin-top: 1.5rem !important;
    font-weight: 600 !important;
    color: var(--white) !important;
}

.trademark-text {
    font-size: 0.75rem !important;
    color: #4a5568 !important;
    margin-top: 0.5rem !important;
    line-height: 1.4 !important;
}

.footer-links h4 {
    color: var(--white) !important;
    font-size: 1rem !important;
    margin-bottom: 1.2rem !important;
    text-transform: uppercase !important;
    letter-spacing: 1px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    padding-bottom: 0.5rem !important;
}

/* Explicit layout validation parameters targeting browser defaults */
.footer-links ul {
    list-style: none !important;
    list-style-type: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.footer-links ul li {
    margin-bottom: 0.75rem !important;
    list-style: none !important;
    list-style-type: none !important;
}

.footer-links ul li a {
    color: #cbd5e0 !important;
    text-decoration: none !important;
    transition: var(--transition-smooth) !important;
    display: inline-block !important;
}

.footer-links ul li a:hover {
    color: var(--white) !important;
    transform: translateX(4px) !important;
}

/* Bottom Baseline Security Strip */
.footer-bottom-strip {
    background-color: #000000 !important;
    padding: 1.5rem 0 !important;
    border-top: 1px solid rgba(255, 255, 255, 0.05) !important;
}

.footer-security {
    display: flex !important;
    gap: 2rem !important;
    font-size: 0.8rem !important;
}

.footer-security span {
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    color: #a0aec0 !important;
}

.back-to-top {
    color: #cbd5e0 !important;
    text-decoration: none !important;
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    transition: var(--transition-smooth) !important;
}

.back-to-top:hover {
    color: var(--accent-oracle) !important;
}

/* ==========================================================================
   RESPONSIVE LAYOUT OVERRIDES
   ========================================================================== */
@media (max-width: 992px) {
    .hero-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hero-badge-container {
        display: none;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--primary-color);
        padding: 1.5rem;
        gap: 1rem;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    .nav-links.active {
        display: flex;
    }
    .main-footer .footer-grid {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
        text-align: center !important;
    }
    .footer-links ul {
        text-align: center !important;
    }
    .footer-bottom-strip .flex-row {
        flex-direction: column !important;
        gap: 1rem !important;
        text-align: center !important;
    }
    .footer-security {
        flex-direction: column !important;
        gap: 0.5rem !important;
    }
}