/* =========================================================
   MELEK NAS GÜRKAN — PORTFOLIO
   Main Stylesheet
   ========================================================= */


/* =========================================================
   01. ROOT / VARIABLES
   ========================================================= */

:root {

    /* Colors */
    --color-bg: #F8F3E6;
    --color-surface: #FBF8F0;
    --color-white: #FFFFFF;

    --color-text: #171512;
    --color-text-soft: #625E56;
    --color-text-muted: #8B857B;

    --color-line: #D8D0C1;

    --color-gold: #B08D57;
    --color-gold-soft: #C9AD7A;

    /* Typography */
    --font-display: "Cormorant Garamond", Georgia, serif;
    --font-body: "Inter", Arial, sans-serif;

    /* Layout */
    --container: 1380px;
    --side-padding: clamp(24px, 5vw, 80px);

    /* Spacing */
    --section-space: clamp(100px, 12vw, 190px);

    /* Motion */
    --transition-fast: 180ms ease;
    --transition: 350ms cubic-bezier(.2,.7,.2,1);

}


/* =========================================================
   02. RESET
   ========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    border: 0;
    background: none;
    font: inherit;
    color: inherit;
    cursor: pointer;
}

::selection {
    background: var(--color-text);
    color: var(--color-bg);
}


/* =========================================================
   03. GLOBAL LAYOUT
   ========================================================= */

.section {
    width: min(100%, var(--container));
    margin-inline: auto;
    padding-inline: var(--side-padding);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 60px;
    margin-bottom: 70px;
}

.section-number,
.eyebrow {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.section-header h2 {
    margin-top: 14px;

    font-family: var(--font-display);
    font-size: clamp(48px, 6vw, 88px);
    font-weight: 500;
    line-height: .95;
    letter-spacing: -.035em;
}

.section-intro {
    width: min(420px, 100%);

    color: var(--color-text-soft);
    font-size: 13px;
    line-height: 1.8;
}


/* =========================================================
   04. HEADER / NAVIGATION
   ========================================================= */

.site-header {
    position: relative;
    z-index: 100;
}

.navbar {
    width: min(100%, var(--container));
    margin-inline: auto;
    padding: 28px var(--side-padding);

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

    border-bottom: 1px solid var(--color-line);
}

.site-logo {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .14em;
}

.main-navigation {
    display: flex;
    align-items: center;
    gap: 38px;
}

.main-navigation a {
    position: relative;

    font-size: 11px;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;

    color: var(--color-text-soft);

    transition: color var(--transition-fast);
}

.main-navigation a::after {
    content: "";

    position: absolute;
    left: 0;
    bottom: -7px;

    width: 0;
    height: 1px;

    background: var(--color-text);

    transition: width var(--transition);
}

.main-navigation a:hover {
    color: var(--color-text);
}

.main-navigation a:hover::after {
    width: 100%;
}


/* Mobile menu button */

.mobile-menu-toggle {
    display: none;

    width: 38px;
    height: 38px;

    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 6px;

    border: 1px solid var(--color-line);
}

.mobile-menu-toggle span {
    width: 15px;
    height: 1px;
    background: var(--color-text);
}


/* =========================================================
   05. HERO
   ========================================================= */

.hero {
    position: relative;

    min-height: calc(100vh - 78px);

    width: min(100%, var(--container));
    margin-inline: auto;

    padding:
        clamp(100px, 15vh, 180px)
        var(--side-padding)
        70px;

    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hero-content {
    max-width: 1050px;
}

.hero h1 {
    margin-top: 24px;

    font-family: var(--font-display);
    font-size: clamp(70px, 10vw, 150px);
    font-weight: 500;
    line-height: .82;
    letter-spacing: -.055em;
}

.hero h1 em {
    color: var(--color-gold);
    font-style: italic;
    font-weight: 400;
}

.hero-description {
    max-width: 480px;

    margin-top: 45px;

    color: var(--color-text-soft);

    font-size: 15px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 32px;

    margin-top: 42px;
}


/* Hero bottom metadata */

.hero-meta {
    display: flex;
    justify-content: space-between;

    padding-top: 30px;

    border-top: 1px solid var(--color-line);

    font-size: 9px;
    font-weight: 600;
    letter-spacing: .18em;
    color: var(--color-text-muted);
}


/* =========================================================
   06. BUTTONS
   ========================================================= */

.button {
    display: inline-flex;
    align-items: center;
    gap: 12px;

    font-size: 10px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.button-primary {
    padding: 15px 22px;

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

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

.button-primary:hover {
    background: var(--color-gold);
    transform: translateY(-2px);
}

.button-text {
    color: var(--color-text-soft);
}

.button-text span {
    transition: transform var(--transition);
}

.button-text:hover span {
    transform: translate(3px, -3px);
}


/* =========================================================
   07. PROJECTS
   ========================================================= */

.projects-section {
    padding-top: var(--section-space);
    padding-bottom: var(--section-space);
}


/* Filters */

.project-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;

    margin-bottom: 55px;
}

.project-filter {
    padding: 9px 15px;

    border: 1px solid var(--color-line);

    font-size: 9px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;

    color: var(--color-text-muted);

    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast);
}

.project-filter:hover,
.project-filter.active {
    background: var(--color-text);
    border-color: var(--color-text);
    color: var(--color-bg);
}


/* Project grid */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 80px 35px;
}


/* Project card */

.project-card {
    display: block;

    opacity: 1;
    transform: translateY(0);

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

.project-card.hidden {
    display: none;
}

.project-card-image {
    position: relative;

    aspect-ratio: 4 / 3;

    overflow: hidden;

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

.project-card-image img {
    width: 100%;
    height: 100%;

    object-fit: cover;

    transition: transform 700ms cubic-bezier(.2,.7,.2,1);
}

.project-card:hover .project-card-image img {
    transform: scale(1.035);
}

.project-card-info {
    display: flex;
    justify-content: space-between;
    gap: 30px;

    padding-top: 18px;

    border-top: 1px solid var(--color-line);
}

.project-card-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 500;
    line-height: 1;

    letter-spacing: -.025em;
}

.project-card-meta {
    text-align: right;

    font-size: 9px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;

    color: var(--color-text-muted);
}

.project-card-description {
    max-width: 430px;

    margin-top: 12px;

    font-size: 12px;
    color: var(--color-text-soft);
}


/* Section footer */

.section-footer {
    margin-top: 70px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;

    padding-bottom: 5px;

    border-bottom: 1px solid var(--color-text);

    font-size: 10px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.text-link span {
    transition: transform var(--transition);
}

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


/* =========================================================
   08. STATEMENT
   ========================================================= */

.statement-section {
    padding-top: 80px;
    padding-bottom: var(--section-space);
}

.statement {
    border-top: 1px solid var(--color-line);

    padding-top: 35px;
}

.statement blockquote {
    max-width: 1050px;

    margin-top: 45px;

    font-family: var(--font-display);
    font-size: clamp(45px, 7vw, 105px);
    font-weight: 400;
    line-height: .95;

    letter-spacing: -.04em;
}

.statement blockquote::before {
    content: "“";
    color: var(--color-gold);
}


/* =========================================================
   09. RESEARCH
   ========================================================= */

.research-section {
    padding-bottom: var(--section-space);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));

    border-top: 1px solid var(--color-line);
}

.research-card {
    padding: 28px 0;

    border-bottom: 1px solid var(--color-line);
}

.research-card:nth-child(odd) {
    padding-right: 40px;
    border-right: 1px solid var(--color-line);
}

.research-card:nth-child(even) {
    padding-left: 40px;
}

.research-card-number {
    font-size: 9px;
    font-weight: 600;
    letter-spacing: .15em;
    color: var(--color-text-muted);
}

.research-card h3 {
    margin-top: 25px;

    font-family: var(--font-display);
    font-size: 34px;
    font-weight: 500;
    line-height: 1;
}

.research-card p {
    max-width: 500px;

    margin-top: 15px;

    font-size: 12px;
    color: var(--color-text-soft);
}


/* =========================================================
   10. ABOUT
   ========================================================= */

.about-section {
    padding-bottom: var(--section-space);
}

.about-layout {
    display: grid;
    grid-template-columns: 1.25fr .75fr;

    gap: 100px;

    padding-top: 20px;
}

.about-main {
    max-width: 750px;
}

.about-lead {
    font-family: var(--font-display);
    font-size: clamp(35px, 4vw, 58px);
    line-height: 1.05;
    letter-spacing: -.025em;
}

.about-main p:not(.about-lead) {
    max-width: 620px;

    margin-top: 30px;

    color: var(--color-text-soft);
    font-size: 14px;
}

.about-details {
    border-top: 1px solid var(--color-line);
}

.detail-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 25px;

    padding: 18px 0;

    border-bottom: 1px solid var(--color-line);
}

.detail-label {
    font-size: 9px;
    font-weight: 600;
    letter-spacing: .13em;
    color: var(--color-text-muted);
}

.detail-value {
    font-size: 11px;
    color: var(--color-text-soft);
}


/* =========================================================
   11. CONTACT
   ========================================================= */

.contact-section {
    padding-top: var(--section-space);
    padding-bottom: var(--section-space);

    border-top: 1px solid var(--color-line);
}

.contact-content h2 {
    margin-top: 25px;

    font-family: var(--font-display);
    font-size: clamp(65px, 10vw, 145px);
    font-weight: 500;
    line-height: .82;
    letter-spacing: -.055em;
}

.contact-content h2 em {
    color: var(--color-gold);
    font-style: italic;
}

.contact-email {
    display: inline-block;

    margin-top: 50px;

    padding-bottom: 8px;

    border-bottom: 1px solid var(--color-text);

    font-family: var(--font-display);
    font-size: clamp(24px, 3vw, 40px);

    transition: color var(--transition);
}

.contact-email:hover {
    color: var(--color-gold);
}

.contact-links {
    display: flex;
    gap: 30px;

    margin-top: 70px;
}

.contact-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;

    font-size: 10px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.contact-links a span {
    transition: transform var(--transition);
}

.contact-links a:hover span {
    transform: translate(3px, -3px);
}


/* =========================================================
   12. FOOTER
   ========================================================= */

.site-footer {
    width: min(100%, var(--container));
    margin-inline: auto;

    padding:
        30px
        var(--side-padding)
        35px;

    border-top: 1px solid var(--color-line);
}

.footer-top,
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}

.footer-logo {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .14em;
}

.footer-top p,
.footer-bottom {
    font-size: 9px;
    letter-spacing: .08em;
    color: var(--color-text-muted);
}

.footer-bottom {
    margin-top: 35px;
}

.footer-bottom a {
    color: var(--color-text);
}


/* =========================================================
   13. RESPONSIVE — TABLET
   ========================================================= */

@media (max-width: 900px) {

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 25px;
    }

    .section-intro {
        max-width: 550px;
    }

    .projects-grid {
        gap: 55px 25px;
    }

    .about-layout {
        grid-template-columns: 1fr;

        gap: 70px;
    }

}


/* =========================================================
   14. RESPONSIVE — MOBILE
   ========================================================= */

@media (max-width: 700px) {

    body {
        font-size: 14px;
    }


    /* Navigation */

    .navbar {
        padding-top: 20px;
        padding-bottom: 20px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .main-navigation {
        position: absolute;

        top: 100%;
        left: 0;
        right: 0;

        display: none;

        flex-direction: column;
        align-items: flex-start;

        padding:
            25px
            var(--side-padding)
            30px;

        background: var(--color-bg);

        border-bottom: 1px solid var(--color-line);
    }

    .main-navigation.open {
        display: flex;
    }

    .main-navigation a {
        font-size: 12px;
    }


    /* Hero */

    .hero {
        min-height: calc(100vh - 65px);

        padding-top: 100px;
        padding-bottom: 30px;
    }

    .hero h1 {
        font-size: clamp(62px, 17vw, 100px);
    }

    .hero-description {
        margin-top: 35px;
    }

    .hero-actions {
        flex-wrap: wrap;
        gap: 20px;
    }


    /* Projects */

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

        gap: 55px;
    }

    .project-card-info {
        flex-direction: column;
        gap: 15px;
    }

    .project-card-meta {
        text-align: left;
    }


    /* Statement */

    .statement blockquote {
        font-size: clamp(42px, 12vw, 75px);
    }


    /* Research */

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

    .research-card:nth-child(odd) {
        padding-right: 0;
        border-right: 0;
    }

    .research-card:nth-child(even) {
        padding-left: 0;
    }


    /* About */

    .detail-item {
        grid-template-columns: 100px 1fr;
    }


    /* Contact */

    .contact-content h2 {
        font-size: clamp(58px, 16vw, 90px);
    }

    .contact-links {
        flex-direction: column;
        gap: 18px;
    }


    /* Footer */

    .footer-top,
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

}


/* =========================================================
   15. REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }

}