/* css/pages/methodology.css - Technical Methodology page specific styles */

/* ===== PAGE HEADER ===== */

.page-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    position: relative;
    color: white;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(46, 139, 87, 0.1) 0%, transparent 70%);
    transform: rotate(45deg);
}

.page-header-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.page-title {
    color: white;
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    font-family: var(--font-serif);
}

.page-title .title-highlight {
    color: var(--color-accent);
}

.page-subtitle {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
    font-weight: 300;
}

.page-breadcrumb {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

.page-breadcrumb a {
    color: white;
    text-decoration: none;
}

.page-breadcrumb a:hover {
    color: var(--color-accent);
}

.page-header-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    line-height: 0;
    z-index: 3;
}

.page-header-wave svg {
    width: 100%;
    height: auto;
    fill: var(--color-surface);
}

/* ===== INTRODUCTION SECTION ===== */

.intro-section {
    padding: 80px 0 60px;
    background: var(--color-surface);
    position: relative;
    animation: sectionFadeIn 0.8s ease forwards;
}

@keyframes sectionFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.methodology-intro {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.methodology-intro .section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -0.02em;
    display: inline-block;
    position: relative;
    font-family: var(--font-serif);
}

.methodology-intro .title-highlight {
    color: var(--color-secondary);
    position: relative;
    display: inline-block;
}

.methodology-intro .title-highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(245, 158, 11, 0.15);
    z-index: -1;
    border-radius: 4px;
}

.methodology-intro .title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: 20px auto 30px;
    border-radius: 2px;
}

.methodology-intro .intro-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-text-light);
    max-width: 850px;
    margin: 0 auto;
    font-weight: 400;
}

/* ===== ALGORITHM SECTION ===== */

.algorithm-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-background-alt);
}

.algorithm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.algorithm-content .section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.algorithm-step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    align-items: flex-start;
}

.algorithm-step:hover {
    transform: translateX(10px);
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-secondary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h4 {
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.step-content p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Algorithm Visual */
.algorithm-visual {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    min-height: 400px;
}

.algorithm-diagram {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 350px;
}

.diagram-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
}

.diagram-circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-lg);
}

.diagram-circle i {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.diagram-circle span {
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
}

.diagram-nodes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.diagram-node {
    position: absolute;
    text-align: center;
    width: 100px;
    background: var(--color-surface);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.diagram-node i {
    display: block;
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
}

.diagram-node span {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.2;
}

.diagram-node.top-left {
    top: 20px;
    left: 20px;
}

.diagram-node.top-right {
    top: 20px;
    right: 20px;
}

.diagram-node.bottom-left {
    bottom: 20px;
    left: 20px;
}

.diagram-node.bottom-right {
    bottom: 20px;
    right: 20px;
}

.diagram-connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.diagram-connections svg {
    width: 100%;
    height: 100%;
}

/* ===== SYSTEM ARCHITECTURE ===== */

.system-architecture {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
}

.architecture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.architecture-card {
    background: var(--color-background-alt);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    text-align: center;
}

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

.arch-icon {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.architecture-card h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.architecture-card ul {
    list-style: none;
    padding: 0;
}

.architecture-card ul li {
    padding: 0.4rem 0;
    color: var(--color-text-light);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--color-border);
}

.architecture-card ul li:last-child {
    border-bottom: none;
}

/* ===== IMPLEMENTATION SECTION ===== */

.implementation-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
}

.implementation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.impl-card {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all var(--transition-base);
    text-align: center;
}

.impl-card:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.12);
    border-color: var(--color-secondary);
}

.impl-icon {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.impl-card h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.impl-card p {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* ===== REQUIREMENTS SECTION ===== */

.requirements-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-background-alt);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.requirement-card {
    background: var(--color-surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.requirement-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

.requirement-card h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.requirement-card h4 i {
    color: var(--color-secondary);
}

.requirement-card ul {
    list-style: none;
    padding: 0;
}

.requirement-card ul li {
    padding: 0.4rem 0;
    color: var(--color-text-light);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--color-border);
    padding-left: 1.5rem;
    position: relative;
}

.requirement-card ul li:last-child {
    border-bottom: none;
}

.requirement-card ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
}

/* ===== METHODOLOGY CTA ===== */

.methodology-cta {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
    text-align: center;
}

.cta-block h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 2.5rem;
}

.cta-block p {
    color: var(--color-text-light);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

@media (max-width: 1200px) {
    .methodology-intro .section-title {
        font-size: 2.4rem;
    }
    
    .architecture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .implementation-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .requirements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .algorithm-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .algorithm-visual {
        min-height: 350px;
    }
    
    .methodology-intro .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .methodology-intro {
        padding: 0 15px;
    }
    
    .methodology-intro .section-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    .methodology-intro .intro-text {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .architecture-grid {
        grid-template-columns: 1fr;
    }
    
    .implementation-grid {
        grid-template-columns: 1fr;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .algorithm-step {
        padding: var(--spacing-sm);
    }
    
    .diagram-node {
        width: 70px;
        padding: 0.5rem;
    }
    
    .diagram-node i {
        font-size: 1rem;
    }
    
    .diagram-node span {
        font-size: 0.6rem;
    }
    
    .diagram-circle {
        width: 80px;
        height: 80px;
    }
    
    .diagram-circle i {
        font-size: 1.5rem;
    }
    
    .diagram-circle span {
        font-size: 0.6rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 576px) {
    .methodology-intro .section-title {
        font-size: 1.8rem;
    }
    
    .methodology-intro .title-highlight::after {
        height: 5px;
        bottom: 2px;
    }
    
    .methodology-intro .title-underline {
        width: 60px;
        height: 3px;
    }
    
    .methodology-intro .intro-text {
        font-size: 0.95rem;
    }
    
    .diagram-node {
        width: 60px;
    }
    
    .diagram-node.top-left {
        top: 10px;
        left: 10px;
    }
    
    .diagram-node.top-right {
        top: 10px;
        right: 10px;
    }
    
    .diagram-node.bottom-left {
        bottom: 10px;
        left: 10px;
    }
    
    .diagram-node.bottom-right {
        bottom: 10px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .methodology-intro .section-title {
        font-size: 1.6rem;
    }
}

/* Height-based adjustments */
@media (max-height: 700px) and (min-width: 769px) {
    .intro-section {
        padding: 40px 0 25px;
    }
}