/* =====================
   RESET & BASE
===================== */

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

html {
    scroll-behavior: smooth;
}

body {
    background: #050505;
    color: #fff;
    font-family: "Montserrat", sans-serif;
    font-weight: 300;
    font-size: 15px;
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    cursor: none;
}

body.no-cursor {
    cursor: auto;
}

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

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

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

/* =====================
   ANIMOWANE TŁO
===================== */

.background {
    position: fixed;
    inset: 0;
    z-index: -5;
    background: #050505;
    overflow: hidden;
    pointer-events: none;
}

.background::before,
.background::after {
    content: "";
    position: absolute;
    width: 300%;
    height: 300%;
    top: -100%;
    left: -100%;
    background-image:
        linear-gradient(60deg, transparent 74%, rgba(255, 255, 255, 0.08) 75%, transparent 76%),
        linear-gradient(-60deg, transparent 74%, rgba(255, 255, 255, 0.05) 75%, transparent 76%);
    background-size: 100px 100px;
}

.background::before {
    animation: moveTriangles 35s linear infinite;
}

.background::after {
    opacity: 0.6;
    filter: blur(2px);
    animation: moveTrianglesReverse 55s linear infinite;
}

@keyframes moveTriangles {
    0%   { transform: rotate(0deg) translate(0, 0); }
    50%  { transform: rotate(5deg) translate(-200px, -100px); }
    100% { transform: rotate(0deg) translate(0, 0); }
}

@keyframes moveTrianglesReverse {
    0%   { transform: rotate(0deg) translate(0, 0); }
    50%  { transform: rotate(-6deg) translate(200px, 100px); }
    100% { transform: rotate(0deg) translate(0, 0); }
}

/* =====================
   KURSOR
===================== */

.cursor {
    width: 18px;
    height: 18px;
    border: 1px solid #fff;
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 0 15px #fff, 0 0 30px rgba(255, 255, 255, 0.4);
    transition: width 0.35s ease, height 0.35s ease;
    opacity: 0;
}

.cursor.is-visible {
    opacity: 1;
}

.cursor::before {
    content: "";
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%   { transform: scale(0.7); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

/* =====================
   LAYOUT
===================== */

.container {
    width: min(1100px, 100% - 3rem);
    margin: 0 auto;
}

/* =====================
   HEADER / NAV
===================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 25px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.site-header.is-scrolled {
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(12px);
}

.logo {
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 5px;
    transition: opacity 0.4s;
}

.logo:hover {
    opacity: 0.5;
}

.site-nav {
    display: flex;
    gap: 35px;
}

.site-nav a {
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: opacity 0.4s;
    position: relative;
}

.site-nav a:hover,
.site-nav a.is-active {
    opacity: 0.5;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 1px;
    background: #fff;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 1.5rem 4rem;
    position: relative;
}

.hero-inner {
    max-width: 900px;
}

.hero-title {
    font-size: clamp(60px, 14vw, 180px);
    font-weight: 200;
    letter-spacing: clamp(12px, 3vw, 25px);
    line-height: 1;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.25);
    animation: showTitle 2s ease;
}

.hero-tagline {
    margin-top: 25px;
    font-size: clamp(10px, 2vw, 13px);
    letter-spacing: clamp(4px, 1.5vw, 8px);
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
}

.hero-text {
    margin: 2.5rem auto 0;
    max-width: 48ch;
    font-size: 14px;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.8;
}

@keyframes showTitle {
    from { opacity: 0; transform: translateY(50px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-meta {
    display: flex;
    gap: clamp(2rem, 6vw, 5rem);
    margin-top: clamp(3rem, 8vh, 5rem);
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.meta-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.meta-value {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 200;
    letter-spacing: 4px;
}

.meta-label {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

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

.btn {
    display: inline-block;
    margin-top: 2.5rem;
    padding: 14px 36px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: transparent;
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 4px;
    text-transform: uppercase;
    transition: background 0.4s, color 0.4s, border-color 0.4s;
}

.btn:hover {
    background: #fff;
    color: #050505;
    border-color: #fff;
}

.btn:disabled {
    opacity: 0.5;
    pointer-events: none;
}

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

.section {
    padding: clamp(5rem, 12vh, 8rem) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-label {
    display: block;
    font-size: 10px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 200;
    letter-spacing: 6px;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    max-width: 20ch;
}

.section-lead {
    max-width: 58ch;
    color: rgba(255, 255, 255, 0.55);
    font-size: 14px;
    letter-spacing: 0.5px;
    margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

/* =====================
   ABOUT
===================== */

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.about-card {
    padding: clamp(1.75rem, 3vw, 2.5rem);
    background: #050505;
    transition: background 0.4s;
}

.about-card:hover {
    background: rgba(255, 255, 255, 0.03);
}

.card-num {
    display: block;
    font-size: 10px;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: 1.5rem;
}

.about-card h3 {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.about-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
}

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

.projects-list {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.project-row {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 2rem;
    align-items: center;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: padding-left 0.4s ease;
}

.project-row:hover {
    padding-left: 1rem;
}

.project-index {
    font-size: 11px;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.3);
}

.project-info h3 {
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.project-info p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    max-width: 50ch;
}

.project-tag {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 6px 14px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.6);
    white-space: nowrap;
}

/* =====================
   STEPS
===================== */

.steps {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    align-items: start;
}

.step-num {
    font-size: 11px;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.3);
    padding-top: 4px;
}

.step h3 {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.step p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    max-width: 55ch;
}

/* =====================
   STATS
===================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 2.5rem;
}

.stat {
    padding: clamp(1.75rem, 3vw, 2.5rem);
    background: #050505;
    text-align: center;
}

.stat-value {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 200;
    letter-spacing: 2px;
    line-height: 1;
    margin-bottom: 1rem;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
}

.stat-label {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.revenue-note {
    max-width: 60ch;
}

.revenue-note p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 0.5px;
    line-height: 1.8;
}

/* =====================
   CONTACT
===================== */

.section--contact {
    padding-bottom: clamp(6rem, 14vh, 9rem);
}

.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
}

.contact-aside p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.5px;
    margin-bottom: 2.5rem;
    max-width: 38ch;
}

.contact-detail {
    display: grid;
    gap: 1.5rem;
}

.contact-detail dt {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 0.35rem;
}

.contact-detail dd {
    font-size: 14px;
    letter-spacing: 1px;
}

.contact-detail a {
    transition: opacity 0.4s;
}

.contact-detail a:hover {
    opacity: 0.5;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-field {
    display: grid;
    gap: 0.5rem;
}

.form-field--full {
    grid-column: 1 / -1;
}

.form-field label,
.form-field .field-label {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.form-field input,
.form-field select {
    width: 100%;
    min-height: 48px;
    padding: 0 1rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.02);
    font-size: 13px;
    letter-spacing: 0.5px;
    outline: none;
    transition: border-color 0.3s, background 0.3s;
}

.form-field input:focus,
.form-field select:focus {
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.04);
}

.form-field input::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.form-field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23888' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-field.is-invalid input,
.form-field.is-invalid select {
    border-color: rgba(255, 120, 120, 0.5);
}

.intent-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.25rem;
}

.intent-option,
.checkbox-field {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.3px;
    line-height: 1.6;
}

.intent-option input,
.checkbox-field input {
    margin-top: 3px;
    accent-color: #fff;
    min-height: auto;
    width: auto;
}

.form-actions {
    margin-top: 1.5rem;
    display: grid;
    gap: 1rem;
}

.form-actions .btn {
    margin-top: 0;
}

.form-message {
    font-size: 12px;
    letter-spacing: 0.5px;
    min-height: 1.4em;
    color: rgba(255, 255, 255, 0.5);
}

.form-message.is-success {
    color: rgba(160, 210, 160, 0.9);
}

.form-message.is-error {
    color: rgba(210, 150, 150, 0.9);
}

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

.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 2rem 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.site-footer p {
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
}

.footer-note {
    letter-spacing: 4px !important;
}

/* =====================
   REVEAL
===================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s ease, transform 0.9s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 900px) {
    .about-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .contact-wrap {
        grid-template-columns: 1fr;
    }

    .project-row {
        grid-template-columns: 40px 1fr;
        gap: 1rem;
    }

    .project-tag {
        grid-column: 2;
        justify-self: start;
        margin-top: 0.5rem;
    }
}

@media (max-width: 800px) {
    body {
        cursor: auto;
    }

    .cursor {
        display: none;
    }

    .site-header {
        padding: 20px 25px;
    }

    .nav-toggle {
        display: flex;
    }

    .site-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        background: rgba(5, 5, 5, 0.97);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.4s ease, opacity 0.4s ease, visibility 0.4s;
    }

    .site-nav.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .site-nav a {
        font-size: 12px;
        letter-spacing: 5px;
    }

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

    .hero-meta {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .step {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .background::before,
    .background::after,
    .cursor::before,
    .hero-title,
    .reveal {
        animation: none !important;
        transition: none !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}