/* ===================================
   TCHENN DIGITAL
   Palette : noir, blanc, gris, bleu pale
=================================== */

:root {
    --white: #ffffff;
    --paper: #f7f9fc;
    --paper-blue: #f0f4f9;

    --ink: #151b26;
    --text: #4e5b6d;
    --muted: #7e8a9b;

    --line: #e4eaf1;

    --blue: #b9cde4;
    --blue-deep: #718ba9;
    --blue-pale: #e7eef6;

    --shadow: 0 18px 55px rgba(35, 53, 76, .08);

    --radius: 22px;
}

/* RESET */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--text);
    font-family: Inter, "Segoe UI", Arial, sans-serif;
    line-height: 1.65;
}

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

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

.container {
    width: min(1160px, calc(100% - 48px));
    margin: auto;
}

/* HEADER */

.header {
    background: rgba(255,255,255,.92);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(14px);
}

.navbar {
    height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    font-size: 1.12rem;
    font-weight: 850;
    letter-spacing: -.045em;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border: 1px solid #dce5ef;
    background: var(--blue-pale);
    border-radius: 13px;
    display: grid;
    place-items: center;
    color: #405873;
}

.logo small {
    display: block;
    color: #8a96a6;
    font-size: .59rem;
    letter-spacing: .18em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 25px;
    color: #596678;
    font-size: .88rem;
    font-weight: 600;
}

.nav-links a:hover {
    color: var(--blue-deep);
}

.nav-button {
    background: var(--ink);
    color: white;
    border-radius: 30px;
    padding: 12px 18px;
    font-size: .85rem;
    font-weight: 700;
}

.menu-toggle {
    display: none;
    border: 0;
    background: transparent;
    color: var(--ink);
    font-size: 1.6rem;
    cursor: pointer;
}

/* BUTTONS */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 999px;
    padding: 13px 20px;
    font-size: .88rem;
    font-weight: 750;
    transition: .2s;
}

.btn-dark {
    background: var(--ink);
    color: white;
    border: none;
}

.btn-dark:hover {
    background: #34465c;
    transform: translateY(-2px);
}

.btn-light {
    background: white;
    border: 1px solid var(--line);
    color: #344357;
}

.btn-light:hover {
    background: var(--blue-pale);
}

.btn-white {
    background: #e8eef5;
    color: var(--ink);
}

.btn-white:hover {
    background: white;
}

/* HERO */

.hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(
        115deg,
        #ffffff 0%,
        #f5f8fc 55%,
        #eaf0f7 100%
    );
    padding: 100px 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 65px;
    align-items: center;
}

.eyebrow,
.kicker {
    font-size: .73rem;
    text-transform: uppercase;
    letter-spacing: .17em;
    font-weight: 800;
    color: #7890aa;
}

h1 {
    font-size: clamp(3.25rem, 6vw, 5.8rem);
    line-height: 1.02;
    letter-spacing: -.075em;
    color: var(--ink);
    margin: 23px 0;
}

h1 span {
    color: #849bb5;
}

.hero-content > p {
    font-size: 1.08rem;
    max-width: 570px;
    color: #637083;
}

.hero-actions {
    display: flex;
    gap: 13px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.hero-caption {
    margin-top: 29px;
    color: #8b96a5;
    font-size: .8rem;
}

.hero-caption strong {
    color: #465568;
}

/* HERO ILLUSTRATION */

.hero-art {
    min-height: 430px;
    position: relative;
    display: grid;
    place-items: center;
}

.art-disc {
    width: 330px;
    height: 330px;
    border-radius: 50%;
    background: linear-gradient(
        145deg,
        #ffffff,
        #e6edf5 45%,
        #cbd9e8
    );
    box-shadow: 0 35px 80px #718ba922;
    position: absolute;
}

.art-ring {
    position: absolute;
    width: 440px;
    height: 210px;
    border: 1px solid #9fb2c755;
    border-radius: 50%;
    transform: rotate(-32deg);
}

.art-ring.second {
    width: 410px;
    height: 250px;
    transform: rotate(53deg);
    border-color: white;
}

.dashboard-card {
    position: relative;
    width: min(350px, 90%);
    padding: 25px;
    border: 1px solid #ffffffc9;
    border-radius: 20px;
    background: rgba(255,255,255,.82);
    box-shadow: 0 24px 65px #536a841c;
    backdrop-filter: blur(12px);
    z-index: 2;
}

.dash-top {
    display: flex;
    justify-content: space-between;
    color: #7c899a;
    font-size: .7rem;
    font-weight: 750;
}

.dashboard-card h3 {
    color: var(--ink);
    font-size: 1.45rem;
    line-height: 1.2;
    margin: 26px 0;
}

.dash-row {
    display: flex;
    justify-content: space-between;
    color: #748195;
    font-size: .74rem;
    margin: 12px 0 6px;
}

.dash-bar {
    height: 7px;
    background: #edf1f6;
    border-radius: 10px;
    overflow: hidden;
}

.dash-bar span {
    display: block;
    height: 100%;
    border-radius: 10px;
    background: linear-gradient(90deg, #c5d5e6, #8da6c1);
}

.floating-note {
    position: absolute;
    z-index: 3;
    padding: 11px 15px;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: white;
    box-shadow: var(--shadow);
    font-size: .77rem;
    font-weight: 750;
    color: #45556a;
}

.floating-note.top {
    top: 42px;
    right: -5px;
}

.floating-note.bottom {
    bottom: 42px;
    left: -10px;
}

/* TRUST STRIP */

.trust-strip {
    background: white;
    border-block: 1px solid var(--line);
    padding: 21px 0;
}

.trust-inner {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    color: #7b8797;
    font-size: .73rem;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.trust-inner span::before {
    content: "✳";
    color: #9bb0c7;
    margin-right: 10px;
}

/* SECTIONS */

.section {
    padding: 100px 0;
}

h2 {
    font-size: clamp(2.35rem, 4.2vw, 4rem);
    line-height: 1.08;
    letter-spacing: -.065em;
    color: var(--ink);
    margin: 13px 0;
}

/* ABOUT */

.about-grid {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 80px;
    align-items: start;
}

.about-text {
    color: #6d7a8c;
}

.about-pill {
    display: inline-block;
    margin-top: 18px;
    padding: 9px 13px;
    border: 1px solid #d7e0ea;
    border-radius: 999px;
    color: #6c8097;
    font-size: .75rem;
    font-weight: 750;
}

/* SERVICES */

.services-section {
    background: #fff;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 35px;
    margin-bottom: 42px;
}

.section-heading > p {
    max-width: 370px;
    color: #758194;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 17px;
}

.service-card {
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 29px;
    min-height: 275px;
    display: flex;
    flex-direction: column;
    transition: .25s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: #cbd9e8;
}

.service-icon {
    height: 47px;
    width: 47px;
    border-radius: 15px;
    background: var(--blue-pale);
    color: #627f9e;
    display: grid;
    place-items: center;
    font-size: 1.25rem;
}

.service-card h3 {
    color: var(--ink);
    font-size: 1.18rem;
    margin: 24px 0 8px;
}

.service-card p {
    font-size: .9rem;
    color: #758194;
}

.service-card a {
    margin-top: auto;
    color: #627f9e;
    font-size: .83rem;
    font-weight: 800;
}

/* APPROACH */

.approach-section {
    background: #eef2f7;
}

.approach-grid {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 80px;
}

.approach-intro p {
    color: #6d7a8c;
}

.process {
    border-top: 1px solid #d6dfe9;
}

.process-item {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 20px;
    padding: 23px 0;
    border-bottom: 1px solid #d6dfe9;
}

.process-item > span {
    color: #829ab4;
    font-size: .72rem;
    font-weight: 850;
}

.process-item h3 {
    margin: 0 0 5px;
    color: var(--ink);
}

.process-item p {
    margin: 0;
    color: #718094;
    font-size: .88rem;
}

/* CTA */

.cta-section {
    background: var(--ink);
    padding: 78px 0;
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 35px;
}

.cta-inner h2 {
    color: white;
    max-width: 720px;
    margin: 0;
}

.cta-inner p {
    color: #aeb9c8;
}

/* CONTACT */

.contact-grid {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 75px;
}

.contact-info > p {
    color: #748194;
}

.contact-details {
    margin-top: 32px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    font-size: .9rem;
    color: #778497;
}

.contact-details strong {
    display: block;
    color: var(--ink);
}

.contact-form {
    background: white;
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 30px;
    box-shadow: 0 15px 50px #334a6410;
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

label {
    display: block;
    font-size: .77rem;
    font-weight: 800;
    color: #4d5b6e;
    margin-bottom: 7px;
}

input,
textarea,
select {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #e0e6ed;
    border-radius: 10px;
    background: #fbfcfe;
    color: var(--ink);
    outline: none;
    margin-bottom: 17px;
}

input:focus,
textarea:focus,
select:focus {
    border-color: #9db2ca;
    box-shadow: 0 0 0 3px #dce6f0;
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-form button {
    width: 100%;
    cursor: pointer;
}

.form-note {
    font-size: .73rem;
    color: #8a96a6;
}

.form-feedback {
    display: none;
    background: #edf3f8;
    color: #435a73;
    border-radius: 10px;
    padding: 12px;
    margin-top: 13px;
}

/* FOOTER */

.footer {
    background: #111824;
    color: #aeb8c5;
    padding: 28px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    font-size: .78rem;
}

.footer-links {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
}

.footer-links a:hover {
    color: white;
}

/* RESPONSIVE */

@media (max-width: 850px) {

    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 82px;
        left: 0;
        right: 0;
        padding: 25px;
        background: white;
        border-bottom: 1px solid var(--line);
    }

    .hero-grid,
    .about-grid,
    .approach-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 38px;
    }

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

    .section-heading,
    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 560px) {

    .container {
        width: calc(100% - 32px);
    }

    .navbar {
        height: 72px;
    }

    .nav-button {
        display: none;
    }

    h1 {
        font-size: 3.25rem;
    }

    .hero {
        padding: 65px 0;
    }

    .hero-art {
        min-height: 330px;
    }

    .art-disc {
        width: 255px;
        height: 255px;
    }

    .art-ring {
        width: 330px;
        height: 165px;
    }

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

    .section {
        padding: 76px 0;
    }

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

    .contact-form {
        padding: 21px;
    }

    .process-item {
        grid-template-columns: 1fr;
        gap: 7px;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}