/* --- ОБЩИЕ СТИЛИ (В стиле indexIQ) --- */
:root {
    --c-text-main: #111111;
    --c-text-sec: #6e6e73;
    --c-accent: #111111; /* Темный цвет кнопок как в "Каталог" */
    --c-accent-hover: #333333;
    --c-blue: #5ba3ff; /* Синий цвет плавающих кнопок с картинки */
    --c-green: #34c759;
    --c-bg-light: #f4f5f7; /* Цвет подложек карточек как на сайте */
    --c-bg-white: #ffffff;
    --radius-l: 24px;
    --radius-m: 16px;
}

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

.tradein-page {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--c-bg-white);
    color: var(--c-text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.tradein-page .container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- HERO SECTION --- */
.tradein-page .hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 60px 0 80px 0;
    gap: 40px;
    min-height: 450px;
}

.tradein-page .hero-content {
    flex: 1;
    max-width: 480px;
    z-index: 2;
}

.tradein-page .hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.tradein-page .hero-text {
    font-size: 18px;
    color: var(--c-text-sec);
    margin-bottom: 35px;
}

.tradein-page .btn-primary {
    display: inline-block;
    background: var(--c-accent);
    color: #fff;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}
.tradein-page .btn-primary:hover {
    background: var(--c-blue); /* При наведении становится синей, как иконки контактов */
    transform: translateY(-2px);
}

/* --- АНИМАЦИЯ --- */
.tradein-page .hero-visual { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; height: 400px; }
.tradein-page .anim-container { width: 240px; height: 320px; position: relative; display: flex; justify-content: center; align-items: center; }
.tradein-page .stage-element { position: absolute; opacity: 0; transform: scale(0.8); transition: all 0.5s ease; }
.tradein-page .device-old { width: 140px; height: 280px; border: 4px solid #86868b; border-radius: 24px; background: #fff; box-shadow: 0 20px 40px rgba(0,0,0,0.05); animation: tradein-anim-old 8s infinite; }
.tradein-page .device-old::before { content: ''; position: absolute; top: 10px; left: 50%; transform: translateX(-50%); width: 40px; height: 4px; background: #e5e5e5; border-radius: 4px; }
.tradein-page .scan-laser { position: absolute; top: 0; left: -10px; right: -10px; height: 4px; background: var(--c-blue); box-shadow: 0 0 15px var(--c-blue); opacity: 0; border-radius: 50%; animation: tradein-anim-scan 8s infinite; }
.tradein-page .value-bubble { width: 120px; height: 120px; background: var(--c-green); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 50px; font-weight: 700; box-shadow: 0 15px 35px rgba(52, 199, 89, 0.4); animation: tradein-anim-value 8s infinite; }
.tradein-page .device-new { width: 150px; height: 300px; background: #1d1d1f; border-radius: 28px; border: 2px solid #333; position: relative; overflow: hidden; animation: tradein-anim-new 8s infinite; }
.tradein-page .device-new-screen { position: absolute; top: 6px; left: 6px; right: 6px; bottom: 6px; background: linear-gradient(135deg, #2c3e50, #000); border-radius: 22px; }
.tradein-page .anim-labels { margin-top: 20px; height: 30px; position: relative; width: 100%; text-align: center; }
.tradein-page .label-text { position: absolute; width: 100%; left: 0; top: 0; font-size: 14px; font-weight: 600; text-transform: uppercase; color: var(--c-text-sec); opacity: 0; }

@keyframes tradein-anim-old { 0% { opacity: 0; transform: scale(0.8); } 10%, 30% { opacity: 1; transform: scale(1); } 35% { opacity: 0; transform: scale(0.2); } 100% { opacity: 0; } }
@keyframes tradein-anim-scan { 0%, 15% { opacity: 0; top: 10%; } 16% { opacity: 1; } 28% { top: 90%; opacity: 1; } 30%, 100% { opacity: 0; } }
@keyframes tradein-anim-value { 0%, 30% { opacity: 0; transform: scale(0); } 35% { opacity: 1; transform: scale(1.1); } 55% { opacity: 1; transform: scale(1); } 60% { opacity: 0; transform: scale(1.5); } 100% { opacity: 0; } }
@keyframes tradein-anim-new { 0%, 55% { opacity: 0; transform: translateY(20px) scale(0.9); } 60%, 90% { opacity: 1; transform: translateY(0) scale(1); } 95% { opacity: 0; transform: translateY(-20px); } 100% { opacity: 0; } }
.tradein-page .anim-labels .label-text:nth-child(1) { animation: tradein-show-label-1 8s infinite; }
.tradein-page .anim-labels .label-text:nth-child(2) { animation: tradein-show-label-2 8s infinite; }
.tradein-page .anim-labels .label-text:nth-child(3) { animation: tradein-show-label-3 8s infinite; }
@keyframes tradein-show-label-1 { 0% { opacity: 0; transform: translateY(10px); } 5%, 25% { opacity: 1; transform: translateY(0); } 30%, 100% { opacity: 0; transform: translateY(-10px); } }
@keyframes tradein-show-label-2 { 0%, 30% { opacity: 0; transform: translateY(10px); } 35%, 50% { opacity: 1; transform: translateY(0); } 55%, 100% { opacity: 0; transform: translateY(-10px); } }
@keyframes tradein-show-label-3 { 0%, 55% { opacity: 0; transform: translateY(10px); } 60%, 90% { opacity: 1; transform: translateY(0); } 95%, 100% { opacity: 0; transform: translateY(-10px); } }

/* --- STEPS SECTION --- */
.tradein-page .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 100px; }
.tradein-page .step-card { background: var(--c-bg-light); border-radius: var(--radius-m); padding: 30px; text-align: left; transition: transform 0.2s; }
.tradein-page .step-card:hover { transform: translateY(-3px); }
.tradein-page .step-icon { font-size: 18px; font-weight: 700; color: var(--c-text-main); margin-bottom: 20px; display: inline-flex; align-items: center; justify-content: center; background: var(--c-bg-white); width: 48px; height: 48px; border-radius: 12px; box-shadow: 0 4px 10px rgba(0,0,0,0.03); }
.tradein-page .step-title { font-size: 20px; font-weight: 600; margin-bottom: 10px; color: var(--c-text-main); }
.tradein-page .step-desc { color: var(--c-text-sec); font-size: 15px; line-height: 1.5; }

/* --- ADVANTAGES SECTION --- */
.tradein-page .adv-section { margin-bottom: 120px; }
.tradein-page .adv-header { text-align: center; max-width: 800px; margin: 0 auto 50px auto; }
.tradein-page .adv-main-title { font-size: 36px; font-weight: 700; line-height: 1.1; margin-bottom: 16px; color: var(--c-text-main); }
.tradein-page .adv-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 980px; margin: 0 auto; }
.tradein-page .adv-item { background: var(--c-bg-light); padding: 30px; border-radius: var(--radius-m); display: flex; align-items: flex-start; gap: 20px; transition: transform 0.2s; }
.tradein-page .adv-item:hover { transform: translateY(-3px); }
.tradein-page .adv-icon-wrapper { flex-shrink: 0; width: 54px; height: 54px; background: var(--c-bg-white); border-radius: 14px; display: flex; align-items: center; justify-content: center; color: var(--c-text-main); box-shadow: 0 4px 10px rgba(0,0,0,0.03); }
.tradein-page .adv-icon-svg { width: 26px; height: 26px; stroke-width: 2; stroke: currentColor; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.tradein-page .adv-item-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--c-text-main); }
.tradein-page .adv-item-desc { font-size: 15px; color: var(--c-text-sec); line-height: 1.5; }
.tradein-page .adv-highlight { color: var(--c-blue); }

/* --- CALCULATOR SECTION --- */
.tradein-page .calculator-section { background: var(--c-bg-white); border: 1px solid #f0f0f0; border-radius: var(--radius-l); padding: 50px; margin-bottom: 100px; box-shadow: 0 10px 40px rgba(0,0,0,0.03); }
.tradein-page .calc-title { text-align: center; font-size: 32px; font-weight: 600; margin-bottom: 40px; }
.tradein-page .form-grid { display: grid; gap: 20px; max-width: 600px; margin: 0 auto; }
.tradein-page .form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--c-text-sec); margin-bottom: 8px; }
.tradein-page .minimal-select { width: 100%; padding: 16px; border: 1px solid transparent; background-color: var(--c-bg-light); border-radius: 12px; font-size: 16px; color: var(--c-text-main); transition: all 0.2s; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23111111' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 20px center; cursor: pointer; }
.tradein-page .minimal-select:focus { outline: none; border-color: var(--c-blue); background-color: var(--c-bg-white); box-shadow: 0 0 0 4px rgba(91, 163, 255, 0.1); }
.tradein-page .minimal-select.has-error { border-color: #d70015; background-color: #fff2f2; }
.tradein-page .minimal-select.has-error:focus { box-shadow: 0 0 0 4px rgba(215, 0, 21, 0.1); }
.tradein-page .minimal-select:disabled { cursor: not-allowed; opacity: 0.6; }
.tradein-page .result-box { text-align: center; margin-top: 40px; padding-top: 30px; border-top: 1px solid #f0f0f0; }
.tradein-page .price-display { font-size: 48px; font-weight: 700; color: var(--c-text-main); letter-spacing: -0.02em; }
.tradein-page .price-label { color: var(--c-text-sec); font-size: 15px; margin-bottom: 5px; }
.tradein-page .alert { padding: 16px; border-radius: 12px; font-size: 14px; line-height: 1.4; margin-top: 20px; text-align: left; }
.tradein-page .alert-info { background: var(--c-bg-light); color: var(--c-text-sec); }
.tradein-page .alert-error { background: #fff2f2; color: #d70015; display: none; }
.tradein-page .price-zero { color: #d70015 !important; }
.tradein-page .btn-spinner { display: none; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff; border-radius: 50%; margin-left: 8px; vertical-align: middle; animation: tradein-spin 0.7s linear infinite; }
.tradein-page .btn-primary.is-loading { cursor: default; opacity: 0.85; }
.tradein-page .btn-primary.is-loading .btn-spinner { display: inline-block; }
@keyframes tradein-spin { to { transform: rotate(360deg); } }

@media (max-width: 800px) {
    .tradein-page .hero-section { flex-direction: column; text-align: center; padding: 40px 0; }
    .tradein-page .hero-content { margin-bottom: 40px; }
    .tradein-page .hero-title { font-size: 36px; }
    .tradein-page .hero-visual { height: 300px; width: 100%; }
    .tradein-page .steps-grid, .tradein-page .adv-list { grid-template-columns: 1fr; gap: 16px; }
    .tradein-page .calculator-section { padding: 30px 20px; border-radius: var(--radius-m); }
    .tradein-page .price-display { font-size: 36px; }
}