/* ==========================================
   IR CREATIVE WORKS DESIGN SYSTEM
========================================== */

:root {

    /* Background */

    --background: #01150c;
    --surface: #0b1712;
    --surface-light: #12231b;

    /* Brand */

    --primary: #18b65a;
    --primary-light: #cbffd1;
    --primary-dark: #0f6f38;

    /* Text */

    --text: #ffffff;
    --text-secondary: #9ba8a2;

    /* Effects */

    --glow: 0 0 25px rgba(24, 182, 90, 0.35);
    --radius: 18px;
    --transition: 0.35s ease;
}


/* ==========================================
   GENERAL STYLES
========================================== */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;

    font-family: Arial, sans-serif;
    color: var(--text);

    background:
        radial-gradient(
            circle at 20% 15%,
            rgba(24, 182, 90, 0.18),
            transparent 30%
        ),
        radial-gradient(
            circle at 80% 35%,
            rgba(203, 255, 209, 0.08),
            transparent 28%
        ),
        radial-gradient(
            circle at 50% 90%,
            rgba(24, 182, 90, 0.1),
            transparent 35%
        ),
        linear-gradient(
            180deg,
            var(--background) 0%,
            #020b07 55%,
            var(--background) 100%
        );

    background-attachment: fixed;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}


/* ==========================================
   HERO SECTION
========================================== */

.hero {
    min-height: 70vh;

    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;

    padding: 60px 0;
    margin-bottom: 30px;
}

.hero-text {
    max-width: 650px;
}

.hero-label {
    color: var(--primary);
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.profile-image {
    width: 220px;
    height: 220px;

    object-fit: cover;

    border: 3px solid var(--primary);
    border-radius: 50%;

    box-shadow: var(--glow);
}

.hero-title {
    color: var(--primary-light);
    font-size: 50px;
    line-height: 1.15;

    margin-top: 0;
    margin-bottom: 15px;

    text-shadow: var(--glow);
}

.hero-subtitle {
    color: var(--text);
    font-size: 22px;
    font-weight: bold;
    line-height: 1.5;

    margin-bottom: 15px;
}

.hero-description {
    max-width: 620px;
    margin-bottom: 15px;
}

.hero-location {
    color: var(--primary-light);
    font-weight: bold;
    margin-bottom: 25px;
}


/* ==========================================
   BUTTONS
========================================== */

.hero-buttons,
.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.btn-primary,
.btn-secondary {
    display: inline-block;

    padding: 13px 24px;

    text-decoration: none;
    font-size: 15px;
    font-weight: bold;

    border-radius: 10px;

    transition: var(--transition);
}

.btn-primary {
    color: #021108;
    background-color: var(--primary-light);
    border: 1px solid var(--primary-light);
}

.btn-primary:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-3px);
}

.btn-secondary {
    color: var(--primary-light);
    background-color: transparent;
    border: 1px solid rgba(203, 255, 209, 0.35);
}

.btn-secondary:hover {
    color: var(--text);
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-3px);
}


/* ==========================================
   PORTFOLIO NAVIGATION
========================================== */

.portfolio-navbar {
    display: flex;
    align-items: center;

    padding: 18px 30px;
    margin-bottom: 45px;

    background: rgba(11, 23, 18, 0.82);

    border: 1px solid rgba(203, 255, 209, 0.14);
    border-radius: var(--radius);

    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    box-shadow:
        0 12px 35px rgba(0, 0, 0, 0.22),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);
}


/* IR Creative Works logo link */

.portfolio-brand {
    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    margin-right: 28px;

    text-decoration: none;

    transition:
        transform var(--transition),
        filter var(--transition);
}

.portfolio-brand:hover {
    transform: translateY(-2px) scale(1.04);
    filter: brightness(1.12);
}


/* Small circular logo */

.portfolio-brand-logo {
    display: block;

    width: 52px;
    height: 52px;

    object-fit: cover;

    border: 1px solid rgba(203, 255, 209, 0.35);
    border-radius: 50%;

    box-shadow:
        0 0 15px rgba(24, 182, 90, 0.25);

    transition:
        transform var(--transition),
        box-shadow var(--transition);
}

.portfolio-brand:hover .portfolio-brand-logo {
    box-shadow:
        0 0 24px rgba(24, 182, 90, 0.5);
}


/* Navigation links container */

.portfolio-nav-links {
    flex: 1;

    display: flex;
    align-items: center;
    justify-content: space-evenly;

    flex-wrap: nowrap;

    min-width: 0;
}


/* Individual navigation links */

.portfolio-nav-links a {
    position: relative;

    color: var(--text-secondary);

    text-decoration: none;
    font-size: 15px;
    font-weight: 700;

    white-space: nowrap;

    transition:
        color var(--transition),
        text-shadow var(--transition);
}


/* Animated underline */

.portfolio-nav-links a::after {
    content: "";

    position: absolute;
    left: 0;
    bottom: -6px;

    width: 100%;
    height: 2px;

    background: var(--primary);

    transform: scaleX(0);
    transform-origin: center;

    transition: transform var(--transition);
}


/* Navigation hover effect */

.portfolio-nav-links a:hover {
    color: var(--primary-light);
    text-shadow: var(--glow);
}

.portfolio-nav-links a:hover::after {
    transform: scaleX(1);
}
/* ==========================================
   PROJECT PAGE NAVIGATION
========================================== */
.project-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;

    gap: 42px;

    padding: 20px 28px;
    margin: 28px 0 45px;

    background: rgba(11, 23, 18, 0.82);

    border: 1px solid rgba(203, 255, 209, 0.14);
    border-radius: var(--radius);

    box-shadow:
        0 12px 35px rgba(0, 0, 0, 0.22),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);

    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}


/* IR Studio logo button */

.project-brand {
    display: flex;
    align-items: center;
    justify-content: center;

    flex-shrink: 0;

    text-decoration: none;
}


/* Circular logo */

.project-brand-logo {
    display: block;

    width: 54px;
    height: 54px;

    object-fit: cover;
    object-position: center;

    border: 1px solid rgba(203, 255, 209, 0.35);
    border-radius: 50%;

    box-shadow:
        0 0 15px rgba(24, 182, 90, 0.25);

    transition:
        transform var(--transition),
        box-shadow var(--transition);
}

.project-brand:hover .project-brand-logo {
    transform: scale(1.08);

    box-shadow:
        0 0 24px rgba(24, 182, 90, 0.5);
}


/* Navigation links container */

.project-nav-links {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;

    gap: 42px;
}


/* Individual navigation links */

.project-nav-links a {
    position: relative;

    color: var(--text-secondary);

    text-decoration: none;
    font-size: 15px;
    font-weight: 700;

    white-space: nowrap;

    transition:
        color var(--transition),
        text-shadow var(--transition);
}


/* Animated underline */

.project-nav-links a::after {
    content: "";

    position: absolute;
    left: 0;
    bottom: -6px;

    width: 100%;
    height: 2px;

    background: var(--primary);

    transform: scaleX(0);
    transform-origin: center;

    transition: transform var(--transition);
}


/* Hover effects */

.project-nav-links a:hover {
    color: var(--primary-light);
    text-shadow: var(--glow);
}

.project-nav-links a:hover::after {
    transform: scaleX(1);
}
/* ==========================================
   CLICKABLE TEXT LINKS
========================================== */

.text-link,
.recognition-link {
    position: relative;
    display: inline-block;

    color: inherit;
    text-decoration: none;

    cursor: pointer;

    transition:
        color var(--transition),
        text-shadow var(--transition);
}


/* Animated underline */

.text-link::after,
.recognition-link::after {
    content: "";

    position: absolute;
    left: 0;
    bottom: -4px;

    width: 100%;
    height: 2px;

    background-color: var(--primary);

    transform: scaleX(0);
    transform-origin: left;

    transition: transform var(--transition);
}


/* Link hover effect */

.text-link:hover,
.recognition-link:hover {
    color: var(--primary-light);
    text-shadow: var(--glow);
}

.text-link:hover::after,
.recognition-link:hover::after {
    transform: scaleX(1);
}


/* German recognition links */

.recognition-link {
    color: var(--primary);
    font-weight: bold;
}


/* External-link arrow */

.external-link span {
    display: inline-block;
    margin-left: 4px;

    font-size: 0.85em;

    transition: transform var(--transition);
}

.external-link:hover span {
    transform: translate(3px, -3px);
}

/* ==========================================
   MAIN SECTIONS
========================================== */

section {
    padding: 35px;
    margin-bottom: 30px;

    background: rgba(11, 23, 18, 0.78);

    border: 1px solid rgba(203, 255, 209, 0.14);
    border-radius: var(--radius);

    box-shadow:
        0 15px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);

    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    transition: var(--transition);
}

section:hover {
    border-color: rgba(203, 255, 209, 0.35);

    box-shadow:
        0 18px 50px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(24, 182, 90, 0.15);

    transform: translateY(-4px);
}

h2 {
    color: var(--primary-light);
    font-size: 28px;

    margin-top: 0;
    margin-bottom: 25px;
}

h3 {
    color: var(--text);
}

p {
    color: var(--text-secondary);
    line-height: 1.8;
}


/* ==========================================
   SKILLS SECTION
========================================== */

.skills-list {
    list-style: none;

    padding: 0;
    margin: 30px 0;

    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

.skill-card {
    min-height: 285px;
    padding: 28px 20px;

    display: flex;
    flex-direction: column;
    align-items: center;

    text-align: center;

    background: rgba(18, 35, 27, 0.82);

    border: 1px solid rgba(203, 255, 209, 0.16);
    border-radius: var(--radius);

    transition: var(--transition);
}

.skill-card:hover {
    border-color: var(--primary-light);

    box-shadow:
        0 15px 35px rgba(0, 0, 0, 0.35),
        0 0 25px rgba(24, 182, 90, 0.22);

    transform: translateY(-6px);
}

.skill-image {
    width: 80px;
    height: 80px;

    object-fit: contain;

    padding: 10px;
    margin-bottom: 18px;

    background-color: #ffffff;

    border-radius: 12px;
}

.skill-card h3 {
    color: var(--primary-light);
    font-size: 19px;

    margin-top: 0;
    margin-bottom: 12px;
}

.skill-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;

    margin: 0;
}

.additional-skills {
    padding: 25px;
    margin-top: 35px;

    background: rgba(18, 35, 27, 0.65);

    border-left: 4px solid var(--primary);
    border-radius: 12px;
}

.additional-skills h3 {
    color: var(--primary-light);

    margin-top: 0;
    margin-bottom: 15px;
}

.additional-skills p {
    margin: 0;
    line-height: 2;
}


/* ==========================================
   EXPERIENCE SECTION
========================================== */

.experience-card {
    padding: 25px;
    margin-bottom: 22px;

    background-color: var(--surface-light);

    border: 1px solid rgba(203, 255, 209, 0.12);
    border-radius: 14px;
}

.experience-card:last-child {
    margin-bottom: 0;
}

.experience-card h3 {
    color: var(--primary-light);
    margin-top: 0;
    margin-bottom: 8px;
}

.experience-company {
    color: var(--text);
    font-weight: bold;
    margin: 0;
}

.experience-period {
    color: var(--primary);
    font-weight: bold;
    margin-top: 5px;
}

.experience-card li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}


/* ==========================================
   PROJECTS SECTION
========================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.project-card {
    padding: 25px;

    background-color: var(--surface-light);

    border: 1px solid rgba(203, 255, 209, 0.14);
    border-radius: 14px;

    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-5px);
}

.project-card h3 {
    color: var(--primary-light);
    margin-top: 0;
}

.project-tools {
    color: var(--primary);
    font-size: 14px;
    font-weight: bold;
}

.project-link {
    display: inline-block;

    color: var(--primary-light);
    font-weight: bold;
    text-decoration: none;

    margin-top: 10px;
}

.project-link:hover {
    text-decoration: underline;
}


/* ==========================================
   CERTIFICATIONS AND EDUCATION
========================================== */

.certification-list {
    padding-left: 22px;
}

.certification-list li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.education-card {
    padding: 22px;
    margin-bottom: 20px;

    background-color: var(--surface-light);

    border: 1px solid rgba(203, 255, 209, 0.12);
    border-radius: 14px;
}

.education-card:last-child {
    margin-bottom: 0;
}

.education-card h3 {
    color: var(--primary-light);
    margin-top: 0;
}

/* ==========================================
   CASE STUDY SECTION
========================================== */

.case-section {
    margin: 40px 0;
    padding: 36px;

    border: 1px solid rgba(134, 255, 154, 0.25);
    border-radius: 22px;

    background:
        radial-gradient(
            circle at top left,
            rgba(24, 182, 90, 0.08),
            transparent 34%
        ),
        rgba(5, 24, 16, 0.88);

    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.22),
        inset 0 0 30px rgba(24, 182, 90, 0.025);
}

.section-heading {
    margin-bottom: 30px;
}

.section-heading h2 {
    margin-bottom: 8px;

    color: var(--primary-light);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.heading-line {
    position: relative;

    display: block;
    width: 65px;
    height: 3px;

    margin-bottom: 18px;

    border-radius: 20px;

    background: var(--primary-light);
    box-shadow: var(--glow);
}

.heading-line::after {
    content: "";

    position: absolute;
    top: 50%;
    right: -15px;

    width: 7px;
    height: 7px;

    border-radius: 50%;

    background: var(--primary);
    box-shadow: var(--glow);

    transform: translateY(-50%);
}

.section-heading p {
    max-width: 760px;
    margin: 0;

    color: rgba(255, 255, 255, 0.78);
    font-size: 1.05rem;
    line-height: 1.7;
}


/* ==========================================
   ANALYTICAL PROCESS FLOW
========================================== */

.process-flow {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 28px;
    align-items: stretch;
}

/*
   The arrow elements remain in the HTML, but they are hidden.
   The connecting arrows are created with CSS so the six cards
   fit correctly inside the 1200px container.
*/

.flow-arrow {
    display: none;
}

.process-card {
    position: relative;

    min-width: 0;
    min-height: 365px;
    padding: 24px 16px;

    border: 1px solid rgba(154, 255, 167, 0.24);
    border-radius: 20px;

    background:
        linear-gradient(
            145deg,
            rgba(24, 182, 90, 0.08),
            rgba(255, 255, 255, 0.015)
        );

    text-align: center;

    transition:
        transform 0.3s ease,
        border-color 0.3s ease,
        box-shadow 0.3s ease;
}

/* Glowing connector arrow between desktop cards */

.process-card:not(:last-of-type)::after {
    content: "→";

    position: absolute;
    top: 50%;
    right: -25px;
    z-index: 3;

    color: #74ff42;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;

    text-shadow:
        0 0 8px rgba(101, 255, 65, 0.75),
        0 0 18px rgba(101, 255, 65, 0.35);

    transform: translateY(-50%);
}

.process-card:hover {
    border-color: rgba(128, 255, 104, 0.65);

    box-shadow:
        0 18px 35px rgba(0, 0, 0, 0.35),
        0 0 24px rgba(82, 255, 74, 0.12);

    transform: translateY(-8px);
}

.process-icon {
    display: flex;
    align-items: center;
    justify-content: center;

    width: 96px;
    height: 96px;

    margin: 0 auto 18px;

    border: 2px solid rgba(83, 255, 50, 0.55);
    border-radius: 50%;

    color: #8cff70;
    font-size: 2.5rem;
    font-weight: 700;

    background:
        radial-gradient(
            circle,
            rgba(75, 255, 55, 0.14),
            rgba(0, 0, 0, 0.2)
        );

    box-shadow:
        inset 0 0 20px rgba(73, 255, 55, 0.1),
        0 0 18px rgba(73, 255, 55, 0.08);
}

.process-label {
    display: inline-block;

    margin-bottom: 14px;
    padding: 5px 10px;

    border: 1px solid rgba(67, 255, 42, 0.65);
    border-radius: 20px;

    color: #78ff55;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;

    background: rgba(23, 86, 22, 0.26);
}

.process-card h3 {
    margin: 0 0 12px;

    color: #ffffff;
    font-size: 1.35rem;
}

.process-card p {
    margin: 0;

    color: rgba(255, 255, 255, 0.75);
    line-height: 1.55;
}

/* ==========================================
   VISUALIZATIONS OVERVIEW
========================================== */

.visualization-card-grid {

    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:20px;

    margin-top:30px;

}

.visualization-card{

    min-width:0;
    padding:22px;

    display:flex;
    align-items:flex-start;
    gap:16px;

    border:1px solid rgba(24,182,90,.2);
    border-radius:16px;

    background:
        linear-gradient(
            145deg,
            rgba(24,182,90,.08),
            rgba(255,255,255,.015)
        );

    transition:.3s;

}

.visualization-card:hover{

    border-color:var(--primary);

    box-shadow:
        0 15px 35px rgba(0,0,0,.3),
        0 0 22px rgba(24,182,90,.13);

    transform:translateY(-5px);

}

.visualization-icon{

    flex:0 0 42px;

    width:42px;
    height:42px;

    display:flex;
    align-items:center;
    justify-content:center;

    border:1px solid var(--primary);
    border-radius:12px;

    background:rgba(24,182,90,.11);

    color:var(--primary-light);

    font-size:.8rem;
    font-weight:800;

}

.visualization-card-content{

    flex:1;
    min-width:0;

}

.visualization-card-content h3{

    margin:0 0 9px;

    color:var(--text);

    font-size:1.05rem;

}

.visualization-card-content p{

    margin:0;

    color:var(--text-secondary);

    line-height:1.65;

}

/* ==========================================
   KEY FINDINGS
========================================== */

.findings-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.finding-item {
    position: relative;
    overflow: hidden;

    display: flex;
    align-items: flex-start;
    gap: 18px;

    padding: 18px 18px 18px 20px;

    border: 1px solid transparent;
    border-left: 3px solid transparent;
    border-radius: 14px;

    background: transparent;

    transition:
        transform 0.35s ease,
        background-color 0.35s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease;
}

.finding-item::before {
    content: "";

    position: absolute;
    top: 0;
    left: -120%;

    width: 70%;
    height: 100%;

    background:
        linear-gradient(
            90deg,
            transparent,
            rgba(24, 182, 90, 0.10),
            transparent
        );

    transform: skewX(-20deg);

    transition: left 0.7s ease;
}

.finding-item:hover {
    transform: translateX(8px);

    border-color: rgba(24, 182, 90, 0.20);
    border-left-color: var(--primary);

    background-color: rgba(24, 182, 90, 0.07);

    box-shadow:
        0 10px 26px rgba(0, 0, 0, 0.22),
        0 0 20px rgba(24, 182, 90, 0.10);
}

.finding-item:hover::before {
    left: 140%;
}

.finding-icon {
    position: relative;
    z-index: 1;
    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    width: 48px;
    height: 48px;

    border: 2px solid rgba(71, 255, 39, 0.65);
    border-radius: 50%;

    color: #83ff50;
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1;

    background:
        radial-gradient(
            circle,
            rgba(63, 255, 44, 0.14),
            rgba(0, 0, 0, 0.18)
        );

    box-shadow:
        0 0 15px rgba(67, 255, 46, 0.24),
        inset 0 0 15px rgba(67, 255, 46, 0.08);

    transition:
        transform 0.35s ease,
        color 0.35s ease,
        background 0.35s ease,
        box-shadow 0.35s ease;
}

.finding-item:hover .finding-icon {
    transform: rotate(10deg) scale(1.12);

    color: var(--background);
    background: var(--primary);

    box-shadow:
        0 0 22px rgba(24, 182, 90, 0.48),
        inset 0 0 12px rgba(255, 255, 255, 0.10);
}

.finding-content {
    position: relative;
    z-index: 1;

    flex: 1;
    min-width: 0;
}

.finding-content h3 {
    margin: 0 0 5px;

    color: #ffffff;
    font-size: 1.08rem;
    line-height: 1.4;

    transition:
        color 0.3s ease,
        transform 0.3s ease;
}

.finding-item:hover .finding-content h3 {
    color: var(--primary-light);
    transform: translateX(3px);
}

.finding-content p {
    margin: 0;

    color: rgba(255, 255, 255, 0.68);
    line-height: 1.6;

    transition:
        color 0.3s ease,
        transform 0.3s ease;
}

.finding-item:hover .finding-content p {
    color: rgba(255, 255, 255, 0.84);
    transform: translateX(3px);
}

@media (max-width: 600px) {

    .finding-item {
        padding: 16px;
        gap: 14px;
    }

    .finding-item:hover {
        transform: translateX(4px);
    }

    .finding-icon {
        width: 42px;
        height: 42px;

        font-size: 1.35rem;
    }
}
/* ==========================================
   BUSINESS RECOMMENDATIONS
========================================== */

.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.recommendation-item {
    position: relative;
    overflow: hidden;

    display: flex;
    align-items: flex-start;
    gap: 18px;

    padding: 20px;

    border: 1px solid transparent;
    border-left: 3px solid transparent;
    border-radius: 14px;

    background: transparent;

    transition:
        transform 0.35s ease,
        background-color 0.35s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease;
}

.recommendation-item::before {
    content: "";

    position: absolute;
    top: 0;
    left: -120%;

    width: 70%;
    height: 100%;

    background:
        linear-gradient(
            90deg,
            transparent,
            rgba(24, 182, 90, 0.10),
            transparent
        );

    transform: skewX(-20deg);

    transition: left 0.7s ease;
}

.recommendation-item:hover {
    transform: translateX(8px);

    border-color: rgba(24, 182, 90, 0.22);
    border-left-color: var(--primary);

    background-color: rgba(24, 182, 90, 0.07);

    box-shadow:
        0 10px 28px rgba(0, 0, 0, 0.24),
        0 0 20px rgba(24, 182, 90, 0.11);
}

.recommendation-item:hover::before {
    left: 140%;
}

.recommendation-number {
    position: relative;
    z-index: 1;
    flex: 0 0 46px;

    width: 46px;
    height: 46px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: 1px solid var(--primary);
    border-radius: 13px;

    background: rgba(24, 182, 90, 0.10);
    color: var(--primary-light);

    font-size: 0.82rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0.04em;

    transition:
        transform 0.35s ease,
        background-color 0.35s ease,
        color 0.35s ease,
        box-shadow 0.35s ease;
}

.recommendation-item:hover .recommendation-number {
    transform: rotate(8deg) scale(1.10);

    background: var(--primary);
    color: var(--background);

    box-shadow:
        0 0 20px rgba(24, 182, 90, 0.42);
}

.recommendation-content {
    position: relative;
    z-index: 1;

    flex: 1;
    min-width: 0;
}

.recommendation-content h3 {
    margin: 0 0 9px;

    color: var(--text);
    font-size: 1.12rem;
    line-height: 1.4;

    transition:
        color 0.3s ease,
        transform 0.3s ease;
}

.recommendation-item:hover .recommendation-content h3 {
    color: var(--primary-light);
    transform: translateX(3px);
}

.recommendation-content p {
    margin: 0;

    color: var(--text-secondary);
    line-height: 1.7;

    transition:
        color 0.3s ease,
        transform 0.3s ease;
}

.recommendation-item:hover .recommendation-content p {
    color: rgba(255, 255, 255, 0.84);
    transform: translateX(3px);
}

/* MOBILE */

@media (max-width: 600px) {

    .recommendation-item {
        padding: 16px;
        gap: 14px;
    }

    .recommendation-item:hover {
        transform: translateX(4px);
    }

    .recommendation-number {
        flex-basis: 40px;
        width: 40px;
        height: 40px;
    }

    .recommendation-content h3 {
        font-size: 1rem;
    }
}

/* ==========================================
   FOOTER
========================================== */

footer {
    padding: 35px 20px;

    color: var(--text-secondary);
    text-align: center;
}

footer p {
    margin: 5px 0;
}
/* ==========================================
   BEHIND THE ANALYSIS — HTML DETAILS
========================================== */

.analysis-section {
    padding: 38px;
    border: 1px solid rgba(24, 182, 90, 0.35);
    border-radius: 22px;
    background:
        radial-gradient(
            circle at top left,
            rgba(24, 182, 90, 0.09),
            transparent 38%
        ),
        rgba(1, 21, 12, 0.84);
}

.analysis-details-list {
    display: grid;
    gap: 14px;
    margin-top: 34px;
}

.analysis-details {
    overflow: hidden;
    border: 1px solid rgba(24, 182, 90, 0.24);
    border-radius: 16px;
    background: rgba(11, 23, 18, 0.8);
    transition: var(--transition);
}

.analysis-details:hover,
.analysis-details[open] {
    border-color: var(--primary);
}

.analysis-details[open] {
    box-shadow: 0 0 25px rgba(24, 182, 90, 0.11);
}

.analysis-summary {
    display: grid;
    grid-template-columns: 105px minmax(0, 1fr) 40px;
    align-items: center;
    gap: 24px;
    padding: 21px 24px;
    cursor: pointer;
    list-style: none;
}

.analysis-summary::-webkit-details-marker {
    display: none;
}

.analysis-summary::marker {
    content: "";
}

.analysis-step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 31px;
    padding: 6px 13px;
    border: 1px solid var(--primary);
    border-radius: 999px;
    color: var(--primary-light);
    background: rgba(24, 182, 90, 0.07);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.analysis-step-summary {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.analysis-step-summary strong {
    color: var(--text);
    font-size: 1rem;
}

.analysis-step-summary small {
    color: var(--text-muted);
    font-size: 0.86rem;
    line-height: 1.55;
}

.analysis-summary-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid rgba(24, 182, 90, 0.45);
    border-radius: 50%;
    color: var(--primary-light);
    font-size: 1.35rem;
    transition: var(--transition);
}

.analysis-details[open] .analysis-summary-icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: var(--background);
}

.analysis-details-content {
    padding: 5px 24px 30px;
    border-top: 1px solid rgba(24, 182, 90, 0.12);
}

.analysis-details-content > p {
    max-width: 900px;
    color: var(--text-muted);
    line-height: 1.8;
}
/* ==========================================
   STEP 03 - DATASET INSPECTION
========================================== */

.inspection-list{
    display:flex;
    flex-direction:column;
    gap:24px;
    margin-top:28px;
    margin-bottom:32px;
}

.inspection-item{
    display:flex;
    align-items:flex-start;
    gap:16px;
}

.inspection-check{
    width:34px;
    height:34px;
    min-width:34px;

    display:flex;
    align-items:center;
    justify-content:center;

    border-radius:50%;
    background:var(--primary);
    color:var(--background);

    font-size:18px;
    font-weight:700;
    line-height:1;
    margin-top:2px;
}

.inspection-text{
    flex:1;
}

.inspection-text h4{
    margin:0 0 8px;
    color:var(--text);
    font-size:1.05rem;
    font-weight:700;
}

.inspection-text p{
    margin:0;
    color:var(--text-muted);
    line-height:1.7;
}

/* ==========================================
   STEP 04 - CLEANING WORKFLOW
========================================== */

.cleaning-workflow {
    width: 100%;
    margin: 32px 0;
    padding: 0;

    display: flex;
    flex-direction: column;
    gap: 22px;
}

.cleaning-workflow-card {
    width: 100%;
    padding: 20px;

    display: flex;
    align-items: flex-start;
    gap: 18px;

    border: 1px solid rgba(24, 182, 90, 0.18);
    border-radius: 14px;

    background: rgba(18, 35, 27, 0.5);
}

.cleaning-number {
    flex: 0 0 44px;

    width: 44px;
    height: 44px;

    display: flex;
    align-items: center;
    justify-content: center;

    margin: 0;
    padding: 0;

    border: 1px solid var(--primary);
    border-radius: 12px;

    background: rgba(24, 182, 90, 0.12);
    color: var(--primary-light);

    font-size: 0.82rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0.04em;
}

.cleaning-text {
    flex: 1;
    min-width: 0;

    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
}

.cleaning-text h4 {
    display: block;

    margin: 0;
    padding: 0;

    color: var(--text);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
}

.cleaning-text p {
    display: block;

    width: 100%;
    margin: 0;
    padding: 0;

    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* STEP 04 — MOBILE */

@media (max-width: 600px) {

    .cleaning-workflow-card {
        padding: 16px;
        gap: 14px;
    }

    .cleaning-number {
        flex-basis: 38px;
        width: 38px;
        height: 38px;
    }

    .cleaning-text h4 {
        font-size: 1rem;
    }

    .cleaning-text p {
        font-size: 0.9rem;
    }
}

/* ==========================================
   STEP 05 - ENGINEERED FEATURES
========================================== */

.feature-card-grid {
    width: 100%;
    margin: 32px 0;

    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.feature-card {
    min-width: 0;
    padding: 20px;

    display: flex;
    align-items: flex-start;
    gap: 16px;

    border: 1px solid rgba(24, 182, 90, 0.18);
    border-radius: 14px;

    background: rgba(18, 35, 27, 0.5);
}

.feature-icon {
    flex: 0 0 36px;

    width: 36px;
    height: 36px;

    display: flex;
    align-items: center;
    justify-content: center;

    margin: 0;
    padding: 0;

    border-radius: 50%;

    background: var(--primary);
    color: var(--background);

    font-size: 17px;
    font-weight: 800;
    line-height: 1;
}

.feature-text {
    flex: 1;
    min-width: 0;

    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
}

.feature-text h4 {
    margin: 0;
    padding: 0;

    color: var(--text);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
}

.feature-text p {
    width: 100%;
    margin: 0;
    padding: 0;

    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

@media (max-width: 700px) {

    .feature-card-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 16px;
        gap: 14px;
    }
}
/* ==========================================
   SKILLS DEMONSTRATED
========================================== */

.skill-badge-grid{

    display:flex;
    flex-wrap:wrap;
    gap:16px;

    margin-top:28px;

}

.skill-badge{

    display:inline-flex;
    align-items:center;
    justify-content:center;

    padding:12px 20px;

    border:1px solid rgba(24,182,90,.30);
    border-radius:999px;

    background:
        linear-gradient(
            145deg,
            rgba(24,182,90,.08),
            rgba(255,255,255,.02)
        );

    color:var(--text);

    font-size:.95rem;
    font-weight:600;

    transition:
        transform .30s ease,
        background .30s ease,
        border-color .30s ease,
        box-shadow .30s ease,
        color .30s ease;

    cursor:default;

}

.skill-badge:hover{

    transform:translateY(-4px);

    border-color:var(--primary);

    background:rgba(24,182,90,.12);

    color:var(--primary-light);

    box-shadow:
        0 10px 24px rgba(24,182,90,.18);

}
/* ==========================================
   RESPONSIVE DESIGN — LARGE TABLETS
========================================== */

@media (max-width: 1100px) {

    .process-flow {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 22px;
    }

    .process-card {
        min-height: 330px;
    }

    .process-card::after {
        display: none;
    }
}

/* ==========================================
   RESPONSIVE DESIGN — TABLETS
========================================== */

@media (max-width: 950px) {

    .hero {
        gap: 45px;
    }

    .hero-title {
        font-size: 42px;
    }

    .skills-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}


/* ==========================================
   RESPONSIVE DESIGN — SMALL TABLETS
========================================== */

@media (max-width: 760px) {

    .case-section {
        padding: 26px 20px;
    }

    .process-flow {
        position: relative;

        grid-template-columns: 1fr;
        gap: 20px;
    }

    .process-flow::before {
        content: "";

        position: absolute;
        top: 20px;
        bottom: 20px;
        left: 50%;
        z-index: 0;

        width: 2px;

        background:
            linear-gradient(
                to bottom,
                transparent,
                rgba(84, 255, 67, 0.4),
                transparent
            );

        transform: translateX(-50%);
    }

    .process-card {
        position: relative;
        z-index: 1;

        min-height: auto;
        padding: 28px 22px;

        background: rgba(6, 28, 18, 0.97);
    }

    .process-card::after {
        display: none;
    }

    .process-icon {
        width: 90px;
        height: 90px;

        font-size: 2.3rem;
    }

    .finding-item {
        gap: 14px;
    }

    .finding-icon {
        width: 42px;
        height: 42px;

        font-size: 1.35rem;
    }
}
.preview-image{
    width:80%;
    max-width:700px;
    height:auto;
    display:block;
    margin-left:0;
    margin-right:auto;
}

/* ==========================================
   RESPONSIVE DESIGN — MOBILE
========================================== */

@media (max-width: 600px) {

    .container {
        width: 92%;
    }

    .hero {
        min-height: auto;

        flex-direction: column;
        gap: 30px;

        padding-top: 50px;

        text-align: center;
    }

    .profile-image {
        width: 180px;
        height: 180px;
    }

    .hero-title {
        font-size: 34px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons,
    .contact-links {
        justify-content: center;
    }

    nav {
        gap: 18px;
    }

    section {
        padding: 25px 20px;
    }

    .case-section {
        padding: 24px 18px;
    }

    .skills-list {
        grid-template-columns: 1fr;
    }

    .skill-card {
        min-height: auto;
    }

    .finding-item {
        align-items: flex-start;
    }

    .finding-content h3 {
        font-size: 1rem;
    }
}
/* ==========================================
   PORTFOLIO NAVIGATION — TABLET
========================================== */

@media (max-width: 1050px) {

    .portfolio-navbar {
        flex-direction: column;
        align-items: center;
        gap: 22px;
    }

    .portfolio-nav-links {
        justify-content: center;
    }
}


/* ==========================================
   PORTFOLIO NAVIGATION — MOBILE
========================================== */

@media (max-width: 600px) {

    .portfolio-navbar {
        padding: 18px;
    }

    .portfolio-brand-logo {
        width: 46px;
        height: 46px;
    }

    .portfolio-nav-links {
        gap: 16px 20px;
    }

    .portfolio-nav-links a {
        font-size: 14px;
    }
}
@media (max-width: 600px) {

    .project-navigation {
        gap: 18px 20px;
        padding: 18px;
        margin-top: 20px;
    }

    .project-navigation a {
        font-size: 14px;
    }
}
/* =========================================
   BACK TO TOP BUTTON
========================================= */

.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 48px;
    height: 48px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: var(--primary);
    color: var(--text);

    border: 1px solid rgba(255,255,255,.12);
    border-radius: 50%;

    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;

    z-index: 1000;

    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);

    box-shadow: 0 8px 25px var(--glow);

    transition:
        opacity .3s ease,
        visibility .3s ease,
        transform .3s ease,
        background-color .3s ease;
}

.back-to-top.show{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
}

.back-to-top:hover{
    background:var(--primary-dark);
    transform:translateY(-4px);
}

.back-to-top:focus-visible{
    outline:3px solid var(--primary-light);
    outline-offset:4px;
}

/* ==========================================
   RESPONSIVE DESIGN
========================================== */

@media (max-width: 900px) {

    .project-navigation {
        flex-direction: column;
        align-items: center;

        gap: 18px;

        padding: 20px;
    }

    .project-nav-links {
        justify-content: center;
        flex-wrap: wrap;

        gap: 18px;
    }

    .project-brand-logo {
        width: 48px;
        height: 48px;
    }

    .process-flow {
        grid-template-columns: 1fr;
    }

    .visualization-card-grid,
    .feature-card-grid,
    .project-summary-grid {
        grid-template-columns: 1fr;
    }

}

/* ==========================================
   PORTFOLIO NAVIGATION - MOBILE FIX
========================================== */

@media (max-width: 768px) {

    .portfolio-navbar {
        display: flex;
        flex-direction: column;
        align-items: center;

        gap: 18px;

        padding: 22px 14px;

        overflow: hidden;
    }

    .portfolio-brand {
        margin: 0;
    }

    .portfolio-brand-logo {
        width: 58px;
        height: 58px;
    }

    .portfolio-nav-links {
        display: flex;
        align-items: center;
        justify-content: flex-start;

        width: 100%;

        gap: 28px;

        overflow-x: auto;
        overflow-y: hidden;

        padding: 8px 12px 14px;

        scroll-behavior: smooth;
        scrollbar-width: thin;
        -webkit-overflow-scrolling: touch;
    }

    .portfolio-nav-links a {
        flex: 0 0 auto;

        font-size: 14px;
        white-space: nowrap;
    }

}