/* ==============================================
   INFINITROOT — MAIN CSS
   Design system, resets, layout, all sections
   Version: 1.0.0
============================================== */

/* -----------------------------------------------
   DESIGN TOKENS
----------------------------------------------- */
:root {
    --brand-primary:   #0057FF;
    --brand-dark:      #003FBB;
    --brand-light:     #E8EFFF;
    --text-dark:       #111111;
    --text-body:       #333333;
    --text-muted:      #666666;
    --bg-white:        #FFFFFF;
    --bg-light:        #F4F6FA;
    --bg-dark:         #0D0D0D;
    --border:          #E2E5EC;
    --radius-sm:       8px;
    --radius-md:       12px;
    --radius-lg:       20px;
    --shadow-sm:       0 2px 12px rgba(0,0,0,0.06);
    --shadow-md:       0 6px 28px rgba(0,0,0,0.10);
    --shadow-lg:       0 12px 48px rgba(0,0,0,0.13);
    --container:       1200px;
    --section-v:       100px;
    --transition:      0.22s ease;
}

/* -----------------------------------------------
   RESET & BASE
----------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-body);
    background-color: var(--bg-white);
    padding-top: 70px; /* offset for sticky bar */
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* -----------------------------------------------
   TYPOGRAPHY
----------------------------------------------- */
h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: clamp(36px, 5vw, 56px); }
h2 { font-size: clamp(28px, 3.5vw, 42px); }
h3 { font-size: clamp(18px, 2vw, 22px); font-weight: 600; }

/* -----------------------------------------------
   CONTAINER
----------------------------------------------- */
.ir-container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* -----------------------------------------------
   BUTTONS
----------------------------------------------- */
.ir-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    border-radius: 50px;
    transition: background var(--transition), color var(--transition),
                transform var(--transition), box-shadow var(--transition);
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
}

.ir-btn--primary {
    background: var(--brand-primary);
    color: #ffffff;
    border: 2px solid var(--brand-primary);
}
.ir-btn--primary:hover {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,87,255,0.28);
}

.ir-btn--outline {
    background: transparent;
    color: var(--brand-primary);
    border: 2px solid var(--brand-primary);
}
.ir-btn--outline:hover {
    background: var(--brand-primary);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,87,255,0.18);
}

.ir-btn--lg { font-size: 17px; padding: 16px 36px; }
.ir-btn--sm { font-size: 14px; padding: 10px 22px; }

/* -----------------------------------------------
   SECTION DEFAULTS
----------------------------------------------- */
.ir-section { padding: var(--section-v) 0; }
.ir-section--light { background: var(--bg-light); }

.ir-section__header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}
.ir-section__header p {
    font-size: 18px;
    color: var(--text-muted);
    margin-top: 14px;
}

/* -----------------------------------------------
   BADGE
----------------------------------------------- */
.ir-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    padding: 4px 12px;
    background: var(--brand-light);
    color: var(--brand-primary);
    border-radius: 50px;
    letter-spacing: 0.02em;
}

/* -----------------------------------------------
   LOGO TEXT
----------------------------------------------- */
.ir-logo-text {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}
.ir-logo-text--light { color: #ffffff; }

/* -----------------------------------------------
   TRUST BAR
----------------------------------------------- */
.ir-trust-bar {
    background: var(--bg-light);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 28px 0;
}
.ir-trust-bar__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}
.ir-trust-bar__item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-dark);
    padding: 8px 36px;
}
.ir-trust-bar__divider {
    width: 1px;
    height: 28px;
    background: var(--border);
}

/* -----------------------------------------------
   WHO THIS IS FOR
----------------------------------------------- */
.ir-who__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.ir-who__card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}
.ir-who__card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--brand-primary);
}
.ir-who__icon {
    width: 64px;
    height: 64px;
    background: var(--brand-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.ir-who__card h3 {
    font-size: 17px;
    margin-bottom: 10px;
}
.ir-who__card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* -----------------------------------------------
   TESTIMONIALS
----------------------------------------------- */
.ir-testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.ir-testimonials__card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: box-shadow var(--transition);
}
.ir-testimonials__card:hover { box-shadow: var(--shadow-md); }
.ir-testimonials__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.ir-testimonials__stars {
    color: #F4B400;
    font-size: 18px;
    letter-spacing: 2px;
}
.ir-testimonials__text {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}
.ir-testimonials__author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.ir-testimonials__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--brand-primary);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ir-testimonials__author span {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-dark);
}

/* -----------------------------------------------
   PROCESS
----------------------------------------------- */
.ir-process__steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
}
.ir-process__step {
    text-align: center;
    padding: 0 20px;
    position: relative;
}
.ir-process__step h3 {
    font-size: 16px;
    margin: 20px 0 10px;
    color: var(--text-dark);
}
.ir-process__step p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}
.ir-process__num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--brand-primary);
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.ir-process__connector {
    position: absolute;
    top: 28px;
    left: 50%;
    width: 100%;
    height: 2px;
    background: var(--border);
    z-index: 1;
}

/* -----------------------------------------------
   WHY INFINITROOT
----------------------------------------------- */
.ir-why__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.ir-why__text h2 { margin-bottom: 20px; }
.ir-why__text p {
    font-size: 17px;
    color: var(--text-muted);
    line-height: 1.8;
}
.ir-why__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.ir-why__item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.ir-why__item svg { flex-shrink: 0; margin-top: 3px; }
.ir-why__item div { display: flex; flex-direction: column; gap: 3px; }
.ir-why__item strong {
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}
.ir-why__item span {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* -----------------------------------------------
   RISK REVERSAL
----------------------------------------------- */
.ir-risk { padding: 40px 0; }
.ir-risk__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}
.ir-risk__item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

/* -----------------------------------------------
   FOOTER
----------------------------------------------- */
.ir-footer {
    background: var(--bg-dark);
    padding: 36px 0;
}
.ir-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}
.ir-footer__links {
    display: flex;
    gap: 28px;
    align-items: center;
}
.ir-footer__links a {
    color: #999;
    font-size: 14px;
    transition: color var(--transition);
}
.ir-footer__links a:hover { color: #fff; }
.ir-footer__copy {
    font-size: 13px;
    color: #666;
}

/* -----------------------------------------------
   MAIN WRAPPER
----------------------------------------------- */
.ir-main { overflow-x: hidden; }

/* -----------------------------------------------
   RESPONSIVE — TABLET (max 1024px)
----------------------------------------------- */
@media (max-width: 1024px) {
    :root { --section-v: 80px; }

    .ir-who__grid { grid-template-columns: repeat(2, 1fr); }
    .ir-testimonials__grid { grid-template-columns: repeat(2, 1fr); }
    .ir-process__steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
    .ir-process__connector { display: none; }
    .ir-why__inner { grid-template-columns: 1fr; gap: 48px; }
    .ir-trust-bar__item { padding: 8px 20px; }
}

/* -----------------------------------------------
   RESPONSIVE — MOBILE (max 768px)
----------------------------------------------- */
@media (max-width: 768px) {
    :root { --section-v: 64px; }

    body { padding-top: 60px; }
    h1 { font-size: 30px; }
    h2 { font-size: 26px; }

    .ir-who__grid { grid-template-columns: 1fr; }
    .ir-testimonials__grid { grid-template-columns: 1fr; }
    .ir-process__steps { grid-template-columns: 1fr; }
    .ir-why__grid { grid-template-columns: 1fr; }
    .ir-trust-bar__inner { flex-wrap: wrap; gap: 8px; }
    .ir-trust-bar__divider { display: none; }
    .ir-trust-bar__item { padding: 8px 16px; width: 50%; justify-content: center; }
    .ir-risk__inner { gap: 24px; flex-direction: column; align-items: flex-start; }
    .ir-footer__inner { flex-direction: column; text-align: center; gap: 16px; }
    .ir-footer__links { justify-content: center; }

    .ir-btn--lg { font-size: 15px; padding: 14px 28px; }
}