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

html {
    scroll-behavior: smooth;
    background-color: #0D1117;
    color: #FFFFFF;
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Nav Global
   ========================================================================== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px; 
}

/* ==========================================================================
   Scrollbar
   ========================================================================== */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #090B0E; 
}

::-webkit-scrollbar-thumb {
    background: #161B22; 
    border: 2px solid #090B0E;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #1F6BEB; 
}
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}
.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.skills-grid .skill-card:nth-child(2),
.programs-grid .program-card:nth-child(2) { 
    transition-delay: 0.15s; 
}
.programs-grid .program-card:nth-child(3) {
    transition-delay: 0.3s; 
}

/* ==========================================================================
    HEADER////\\\\\
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: 1000;
    background-color: rgba(13, 17, 23, 0.75); 
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(240, 246, 252, 0.06);
    transition: all 0.3s ease;
}

.header-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/*
=================================
    LOGO
=================================
*/

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #FFFFFF;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.logo-dot {
    color: #1F6BEB;
}
.desktop-nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: #8B949E;
    text-decoration: none;
    transition: color 0.25s ease;
    position: relative;
}

.nav-link:hover {
    color: #FFFFFF;
}
.nav-link::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #1F6BEB;
    transition: width 0.25s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 42px;
    padding: 0 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #FFFFFF;
    background-color: rgba(31, 107, 235, 0.1);
    border: 1px solid rgba(31, 107, 235, 0.4);
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-header:hover {
    background-color: #1F6BEB;
    border-color: #1F6BEB;
    box-shadow: 0 4px 12px rgba(31, 107, 235, 0.3);
    transform: translateY(-1px);
}

.main-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero-section {
    display: flex;
    align-items: center;
    min-height: 90vh;
    padding: 140px 0 100px 0;
}

.content-block {
    max-width: 800px;
}
.main-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
    background: linear-gradient(180deg, #FFFFFF 0%, #C9D1D9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.description {
    font-size: 1.25rem;
    line-height: 1.6;
    color: #8B949E; /* greyish */
    margin-bottom: 40px;
    font-weight: 400;
}
.badge-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    list-style: none;
    margin-bottom: 56px;
    padding: 0;
}

.badge {
    font-size: 0.95rem;
    color: #C9D1D9;
    display: flex;
    align-items: center;
    position: relative;
}
.badge:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -14px;
    top: 25%;
    width: 1px;
    height: 50%;
    background-color: rgba(240, 246, 252, 0.15);
}
.cta-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cta-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #8B949E;
    font-weight: 600;
}

.button-group {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 56px;
    padding: 0 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn-telegram {
    background-color: #1F6BEB;
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(31, 107, 235, 0.2);
}

.btn-telegram:hover {
    background-color: #388BFD;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(31, 107, 235, 0.4);
}
.btn-whatsapp {
    background-color: #161B22;
    color: #C9D1D9;
    border: 1px solid rgba(240, 246, 252, 0.1);
}

.btn-whatsapp:hover {
    background-color: #21262D;
    color: #FFFFFF;
    border-color: rgba(240, 246, 252, 0.3);
    transform: translateY(-2px);
}
.btn-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* ==========================================================================
   Programs
   ========================================================================== */

.programs-section {
    padding: 120px 0;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

.section-header {
    margin-bottom: 64px;
    max-width: 600px;
}

.section-subtitle {
    display: inline-block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #1F6BEB; /* bluish */
    font-weight: 700;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #FFFFFF;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    list-style: none;
    padding: 0;
}

.program-card {
    background-color: #161B22;
    border: 1px solid rgba(240, 246, 252, 0.07);
    border-radius: 12px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    min-height: 340px;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.program-card:not(.card-highlight):hover {
    transform: translateY(-8px);
    border-color: rgba(240, 246, 252, 0.2);
    background-color: #1c212a;
}

.program-card.card-highlight {
    background-color: #0F1B29;
    border: 1px solid rgba(31, 107, 235, 0.4); /* bluish */
    box-shadow: 0 10px 30px rgba(31, 107, 235, 0.1);
}

.program-card.card-highlight:hover {
    transform: translateY(-8px);
    border-color: #1F6BEB;
    box-shadow: 0 15px 40px rgba(31, 107, 235, 0.2);
}
.card-head {
    margin-bottom: 32px;
}
.program-tag {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 6px 12px;
    border-radius: 6px;
    background-color: rgba(240, 246, 252, 0.05);
    color: #8B949E;
    border: 1px solid rgba(240, 246, 252, 0.1);
}
.card-highlight .program-tag {
    background-color: rgba(31, 107, 235, 0.15);
    color: #388BFD;
    border-color: rgba(31, 107, 235, 0.3);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 16px;
    color: #FFFFFF;
}

.card-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #8B949E;
    font-weight: 400;
}

.card-highlight .card-description {
    color: #C9D1D9;
}
/* ====================================================================
   SKILLS
   ==================================================================== */

.skills-section {
    padding: 120px 0;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

/* 2 columns desktop */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.skill-card {
    background-color: #161B22;
    border: 1px solid rgba(240, 246, 252, 0.06);
    border-radius: 12px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.skill-card:hover {
    border-color: rgba(31, 107, 235, 0.4);
    background-color: #0F1B29; 
    transform: translateY(-4px);
}

.skill-card-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-card-title::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: #1F6BEB;
    border-radius: 50%;
}

.skill-card-text {
    font-size: 1rem;
    line-height: 1.6;
    color: #8B949E; /* greyish */
    font-weight: 400;
}

.skill-card:hover .skill-card-text {
    color: #C9D1D9;
}
/* =================================================
   ROADMAP TIMELINE
   ================================================= */

.roadmap-section {
    padding: 120px 0;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

.section-description-text {
    font-size: 1.1rem;
    color: #8B949E;
    margin-top: 12px;
}

.roadmap-timeline {
    position: relative;
    max-width: 800px;
    margin: 64px auto 0 auto;
    padding-left: 40px; 
}

.roadmap-timeline::before {
    content: "";
    position: absolute;
    left: 16px;
    top: 40px;
    bottom: 40px;
    width: 2px;
    background: linear-gradient(180deg, rgba(31, 107, 235, 0.5) 0%, rgba(22, 27, 34, 0.5) 100%);
}

.roadmap-step {
    position: relative;
    margin-bottom: 48px;
    display: flex;
    gap: 32px;
}

.roadmap-step:last-child {
    margin-bottom: 0;
}

.step-badge {
    position: absolute;
    left: -40px;
    top: 0;
    width: 34px;
    height: 34px;
    background-color: #161B22;
    border: 2px solid rgba(240, 246, 252, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all 0.3s ease;
}

.step-number {
    font-size: 0.85rem;
    font-weight: 700;
    color: #8B949E;
}

.step-content {
    background-color: #161B22;
    border: 1px solid rgba(240, 246, 252, 0.06);
    border-radius: 12px;
    padding: 32px;
    width: 100%;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.step-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 12px;
}

.step-text {
    font-size: 1rem;
    line-height: 1.6;
    color: #8B949E;
}

.roadmap-step:hover .step-content {
    border-color: rgba(31, 107, 235, 0.3);
    background-color: #1c212a;
}

.roadmap-step:hover .step-badge {
    border-color: #1F6BEB;
    background-color: #0F1B29;
    box-shadow: 0 0 12px rgba(31, 107, 235, 0.5);
}

.roadmap-step:hover .step-number {
    color: #FFFFFF;
}

.roadmap-step.step-success .step-badge {
    border-color: #1F6BEB;
    background-color: #1F6BEB;
}

.roadmap-step.step-success .step-number {
    color: #FFFFFF;
}

.roadmap-step.step-success .step-content {
    background: linear-gradient(135deg, #161B22 0%, #0F1B29 100%);
    border-color: rgba(31, 107, 235, 0.4);
}


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

.contact-section {
    padding: 120px 0;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

.contact-grid-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    margin-top: 56px;
    align-items: start;
}

/* --- Form style --- */
.contact-form-wrapper {
    background-color: #161B22; 
    border: 1px solid rgba(240, 246, 252, 0.06);
    border-radius: 16px;
    padding: 48px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #8B949E;
}

.form-input {
    width: 100%;
    height: 52px;
    background-color: #0D1117; 
    border: 1px solid rgba(240, 246, 252, 0.1);
    border-radius: 8px;
    padding: 0 16px;
    font-size: 1rem;
    color: #FFFFFF;
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.form-textarea {
    height: auto;
    padding: 16px;
    resize: none;
}

.form-input:focus {
    outline: none;
    border-color: #1F6BEB;
    box-shadow: 0 0 0 3px rgba(31, 107, 235, 0.15);
    background-color: #0d131f; /* light blue */
}

.form-input::placeholder {
    color: rgba(139, 148, 158, 0.5);
}

/* Form button sender */
.btn-submit {
    width: 100%;
    background-color: #1F6BEB;
    color: #FFFFFF;
    border: none;
    cursor: pointer;
    font-family: inherit;
    box-shadow: 0 4px 14px rgba(31, 107, 235, 0.2);
}

.btn-submit:hover {
    background-color: #388BFD;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(31, 107, 235, 0.4);
}

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.btn-submit:hover .btn-arrow {
    transform: translateX(4px);
}
.form-success-message {
    text-align: center;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    animation: fadeInSuccess 0.5s ease forwards;
}

.success-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(31, 107, 235, 0.1);
    border: 2px solid #1F6BEB;
    color: #388BFD;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
}

@keyframes fadeInSuccess {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.direct-connections-panel {
    background-color: #090B0E;
    border: 1px solid rgba(240, 246, 252, 0.04);
    border-radius: 16px;
    padding: 40px;
}

.panel-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 12px;
}

.panel-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #8B949E;
    margin-bottom: 32px;
}

.connections-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.conn-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 56px;
    padding: 0 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.conn-telegram {
    background-color: rgba(31, 107, 235, 0.06);
    border: 1px solid rgba(31, 107, 235, 0.2);
    color: #388BFD;
}

.conn-telegram:hover {
    background-color: #1F6BEB;
    color: #FFFFFF;
    border-color: #1F6BEB;
    transform: translateX(4px);
}

.conn-whatsapp {
    background-color: rgba(240, 246, 252, 0.03);
    border: 1px solid rgba(240, 246, 252, 0.08);
    color: #C9D1D9;
}

.conn-whatsapp:hover {
    background-color: #161B22;
    color: #FFFFFF;
    border-color: rgba(240, 246, 252, 0.2);
    transform: translateX(4px);
}

.conn-action {
    font-size: 0.85rem;
    opacity: 0.7;
    font-weight: 400;
}
/* 
About section
*/

.about-lessons-section {
    padding: 120px 0;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

.lessons-intro-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    margin-bottom: 96px;
}

.language-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
}

.lang-badge {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 14px;
    background-color: #161B22;
    border: 1px solid rgba(240, 246, 252, 0.08);
    border-radius: 20px;
    color: #C9D1D9;
}

.lang-level {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 14px;
    background-color: rgba(31, 107, 235, 0.1);
    border: 1px solid rgba(31, 107, 235, 0.3);
    border-radius: 20px;
    color: #388BFD;
}

.lessons-main-text {
    font-size: 1.35rem;
    line-height: 1.6;
    color: #FFFFFF;
    margin-bottom: 20px;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.lessons-sub-text {
    font-size: 1.05rem;
    line-height: 1.6;
    color: #8B949E;
}


.reviews-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 48px;
    border-bottom: 1px solid rgba(240, 246, 252, 0.05);
    padding-bottom: 24px;
}

.rating-total-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: #161B22;
    padding: 12px 20px;
    border-radius: 12px;
    border: 1px solid rgba(240, 246, 252, 0.06);
}

.rating-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #FFFFFF;
}

.rating-stars {
    color: #1F6BEB; 
    font-size: 1.1rem;
    letter-spacing: 2px;
}

.rating-count {
    font-size: 0.9rem;
    color: #8B949E;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.review-card {
    background-color: #161B22;
    border: 1px solid rgba(240, 246, 252, 0.05);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: all 0.3s ease;
}

.review-card:hover {
    border-color: rgba(240, 246, 252, 0.15);
    background-color: #1c212a;
}

.card-wide {
    grid-row: span 2;
    background: linear-gradient(180deg, #161B22 0%, #0F1B29 100%);
    border-color: rgba(31, 107, 235, 0.15);
}

.review-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-avatar {
    width: 44px;
    height: 44px;
    background-color: #0D1117;
    border: 1px solid rgba(240, 246, 252, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #1F6BEB;
    font-size: 1.1rem;
}

.card-wide .user-avatar {
    background-color: #1F6BEB;
    color: #FFFFFF;
}

.user-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #FFFFFF;
}

.user-rating {
    font-size: 0.85rem;
    color: #1F6BEB;
    margin-top: 2px;
}

.rating-label {
    color: #8B949E;
    margin-left: 6px;
    font-weight: 400;
}

/* Текст отзыва */
.review-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #8B949E;
}

.card-wide .review-text {
    color: #C9D1D9;
}

.italic-highlight {
    border-left: 2px solid #1F6BEB;
    padding-left: 12px;
    font-style: italic;
    color: #FFFFFF !important;
}


/* ============================================================
   EXPERT SECTION
   ============================================================ */

.expert-section {
    padding: 120px 0;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

/* 40% to 60% */
.expert-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 64px;
    align-items: center;
}

.expert-visual {
    background-color: #161B22;
    border: 1px solid rgba(31, 107, 235, 0.2);
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: flex-start;
}
.expert-photo {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    
    object-position: top center; 
}
.expert-avatar-large {
    /*font-size: 6rem;
    font-weight: 800;
    color: #1F6BEB;
    background: linear-gradient(180deg, #1F6BEB 0%, #388BFD 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
    user-select: none;*/
}

.expert-location-tag {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(240, 246, 252, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #C9D1D9;
    z-index: 10;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #388BFD;
    border-radius: 50%;
    position: relative;
}

.pulse-dot::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-color: #388BFD;
    border-radius: 50%;
    animation: locationPulse 2s infinite ease-in-out;
}

@keyframes locationPulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2.5); opacity: 0; }
}

/* --- right side text --- */
.expert-content {
    display: flex;
    flex-direction: column;
}

.expert-lead-text {
    font-size: 1.35rem;
    line-height: 1.5;
    color: #FFFFFF;
    margin: 16px 0 24px 0;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.expert-description-text {
    font-size: 1.05rem;
    line-height: 1.6;
    color: #8B949E;
    margin-bottom: 16px;
}

.expert-description-text:last-of-type {
    margin-bottom: 40px; 
}

.expert-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
    padding-top: 32px;
}

.metric-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.metric-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1F6BEB; /* bluish */
}

.metric-label {
    font-size: 0.85rem;
    color: #8B949E;
    line-height: 1.4;
}
/* ====================================================================
   FOOTER
   ==================================================================== */

.site-footer {
    width: 100%;
    padding: 48px 0;
    background-color: #0D1117;
    border-top: 1px solid rgba(240, 246, 252, 0.05);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.copyright {
    font-size: 0.9rem;
    color: #8B949E; /* grey */
    font-weight: 400;
    letter-spacing: 0.02em;
    text-align: center;
}

/* ==========================================================================
   Adaptiveness
   ========================================================================== */
@media (max-width: 1024px) {
    .programs-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .programs-section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .program-card {
        padding: 32px;
        min-height: auto;
    }
}

@media (max-width: 968px) {
    .lessons-intro-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 64px;
    }

    .lessons-main-text {
        font-size: 1.15rem;
    }

    .reviews-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

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

    .card-wide {
        grid-row: auto;
    }
    .expert-grid {
        grid-template-columns: 1fr; 
        gap: 40px;
    }

    .expert-visual {
        max-width: 500px;
        margin: 0 auto;
    }

    .expert-avatar-large {
        font-size: 4.5rem;
    }

    .expert-lead-text {
        font-size: 1.2rem;
    }

    .expert-metrics {
        grid-template-columns: 1fr;
        gap: 20px;
        padding-top: 24px;
    }
    .contact-grid-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-form-wrapper, .direct-connections-panel {
        padding: 32px 24px;
    }
}
@media (max-width: 768px) {
    .site-header {
        height: 64px;
    }
    .desktop-nav {
        display: none; 
    }
    .btn-header {
        height: 38px;
        padding: 0 16px;
        font-size: 0.8rem;
    }
    .roadmap-section {
        padding: 80px 0;
    }

    .roadmap-timeline {
        padding-left: 32px;
        margin-top: 40px;
    }

    .roadmap-timeline::before {
        left: 12px;
    }

    .step-badge {
        left: -32px;
        width: 28px;
        height: 28px;
    }

    .step-number {
        font-size: 0.75rem;
    }

    .step-content {
        padding: 24px;
    }

    .step-title {
        font-size: 1.15rem;
    }
    .hero-section {
        padding: 100px 0 60px 0;
        min-height: auto;
    }

    .main-title {
        font-size: 2.2rem;
        margin-bottom: 20px;
    }

    .description {
        font-size: 1.1rem;
        margin-bottom: 32px;
    }

    .badge-flex {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 40px;
    }

    .badge:not(:last-child)::after {
        display: none;
    }

    .button-group {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        height: 60px;
    }
        .skills-section {
        padding: 80px 0;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .skill-card {
        padding: 32px 24px;
    }
    
    .skill-card-title {
        font-size: 1.2rem;
    }
    .site-footer {
        padding: 32px 0;
    }
    
    .copyright {
        font-size: 0.85rem;
    }
}