/* ====================================================
   Teil1 Funnel — Diagnostic Quiz Styles
   Dual-Theme: Dark (default) + Light
   ==================================================== */

/* ── CSS Custom Properties ── */
.t1-diag--dark {
    --diag-bg: #111;
    --diag-surface: #141414;
    --diag-border: rgba(255,255,255,0.08);
    --diag-text: #F5F4F0;
    --diag-text-secondary: rgba(245,244,240,0.5);
    --diag-accent: #fc490b;
    --diag-btn-bg: rgba(255,255,255,0.04);
    --diag-btn-hover: rgba(255,255,255,0.08);
    --diag-btn-active: rgba(252,73,11,0.15);
    --diag-input-bg: rgba(255,255,255,0.06);
    --diag-input-border: rgba(255,255,255,0.12);
    --diag-input-focus: rgba(252,73,11,0.4);
    --diag-logo-fill: #F5F4F0;
}

.t1-diag--light {
    --diag-bg: #FAFAF9;
    --diag-surface: #FFFFFF;
    --diag-border: rgba(0,0,0,0.08);
    --diag-text: #1D1D1F;
    --diag-text-secondary: rgba(29,29,31,0.45);
    --diag-accent: #fc490b;
    --diag-btn-bg: rgba(0,0,0,0.03);
    --diag-btn-hover: rgba(0,0,0,0.06);
    --diag-btn-active: rgba(252,73,11,0.1);
    --diag-input-bg: rgba(0,0,0,0.03);
    --diag-input-border: rgba(0,0,0,0.12);
    --diag-input-focus: rgba(252,73,11,0.3);
    --diag-logo-fill: #1D1D1F;
}

/* ── Container ── */
.t1-diag-container {
    width: 100%;
    min-height: 100vh;
    background: var(--diag-bg);
    color: var(--diag-text);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ── Header / Progress ── */
.t1-diag-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 40px;
    border-bottom: 1px solid var(--diag-border);
}

.t1-diag-logo svg { display: block; }
.t1-diag-logo-text { fill: var(--diag-logo-fill); }

.t1-diag-progress {
    display: flex;
    align-items: center;
    gap: 16px;
}

.t1-diag-counter {
    font-family: "Space Grotesk", monospace;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--diag-text-secondary);
}

.t1-diag-progress-track {
    width: 120px;
    height: 3px;
    background: var(--diag-border);
    border-radius: 99px;
    overflow: hidden;
}

.t1-diag-progress-fill {
    height: 100%;
    background: var(--diag-accent);
    border-radius: 99px;
    transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

/* ── Main Content ── */
.t1-diag-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
}

/* ── Steps ── */
.t1-diag-step {
    display: none;
    max-width: 700px;
    width: 100%;
}

.t1-diag-step.active {
    display: block;
}

/* ── Meta / Phase Label ── */
.t1-diag-meta {
    display: inline-block;
    font-family: "Space Grotesk", monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--diag-accent);
    margin-bottom: 20px;
}

/* ── Question ── */
.t1-diag-question {
    font-family: "Space Grotesk", "Inter", sans-serif;
    font-size: clamp(22px, 3vw, 32px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--diag-text);
    margin: 0 0 12px;
}

/* ── Detail Text ── */
.t1-diag-detail {
    font-size: 14px;
    line-height: 1.6;
    color: var(--diag-text-secondary);
    max-width: 600px;
    margin-bottom: 32px;
}

/* ── Option Buttons ── */
.t1-diag-options {
    display: grid;
    gap: 12px;
    margin-top: 32px;
}

.t1-diag-options.grid-2 {
    grid-template-columns: 1fr 1fr;
}

.t1-diag-options.grid-horizontal {
    grid-template-columns: repeat(4, 1fr);
}

.t1-diag-options.layout-stacked {
    grid-template-columns: 1fr;
}

.t1-diag-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 22px;
    background: var(--diag-btn-bg);
    border: 1px solid var(--diag-border);
    border-radius: 12px;
    color: var(--diag-text);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s cubic-bezier(0.25, 1, 0.5, 1);
    line-height: 1.4;
}

.t1-diag-btn:hover {
    background: var(--diag-btn-hover);
    border-color: var(--diag-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(252, 73, 11, 0.12);
}

.t1-diag-btn:active {
    transform: translateY(0);
}

.t1-diag-btn-kpi {
    font-family: "Space Grotesk", monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--diag-accent);
    background: var(--diag-btn-active);
    padding: 6px 10px;
    border-radius: 6px;
    flex-shrink: 0;
    min-width: 32px;
    text-align: center;
}

/* ── Back Button ── */
.t1-diag-back {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--diag-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.15s;
    padding: 0;
}

.t1-diag-back:hover {
    color: var(--diag-accent);
}

/* ── Actions Layout & Skip Button ── */
.t1-diag-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 32px;
}

.t1-diag-skip {
    font-size: 12px;
    font-weight: 500;
    color: var(--diag-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.15s;
    padding: 0;
}

.t1-diag-skip:hover {
    color: var(--diag-text);
}

/* ── Terminal / Calculation Effect (Minimalist Sonar) ── */
.t1-diag-reticle {
    width: 64px;
    height: 64px;
    margin: 0 auto 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.t1-diag-sonar {
    width: 12px;
    height: 12px;
    background-color: var(--diag-accent);
    border-radius: 50%;
    position: relative;
}

.t1-diag-sonar::before,
.t1-diag-sonar::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid var(--diag-accent);
    animation: t1-diag-sonar-pulse 2s infinite cubic-bezier(0.2, 0.8, 0.2, 1);
}

.t1-diag-sonar::after {
    animation-delay: 1s;
}

@keyframes t1-diag-sonar-pulse {
    0% { width: 12px; height: 12px; opacity: 1; border-width: 2px; }
    100% { width: 64px; height: 64px; opacity: 0; border-width: 1px; }
}

.t1-diag-terminal {
    font-family: "Space Grotesk", monospace;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--diag-accent);
    text-transform: uppercase;
}

/* ── Lead Capture Form ── */
.t1-diag-form {
    margin-top: 40px;
    max-width: 520px;
}

.t1-diag-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.t1-diag-input {
    width: 100%;
    padding: 14px 18px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--diag-input-border);
    border-radius: 10px;
    background: var(--diag-input-bg);
    color: var(--diag-text);
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.t1-diag-input:focus {
    outline: none;
    border-color: var(--diag-accent);
    box-shadow: 0 0 0 3px var(--diag-input-focus);
}

.t1-diag-input::placeholder {
    color: var(--diag-text-secondary);
}

.t1-diag-input:not(.t1-diag-field-half) {
    grid-column: 1 / -1;
}

/* ── Submit Button ── */
.t1-diag-submit {
    width: 100%;
    margin-top: 24px;
    padding: 18px;
    background: var(--diag-accent);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.25, 1, 0.5, 1);
    position: relative;
    overflow: hidden;
}

.t1-diag-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(252, 73, 11, 0.35);
}

.t1-diag-submit::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.15), transparent);
    transform: skewX(-20deg);
    animation: t1-diag-shimmer 3s infinite 2s;
}

@keyframes t1-diag-shimmer {
    0% { left: -100%; }
    20% { left: 200%; }
    100% { left: 200%; }
}

/* ── Security Note ── */
.t1-diag-security {
    margin-top: 16px;
    font-size: 11px;
    color: var(--diag-text-secondary);
    text-align: center;
}

/* ── Success Icon ── */
.t1-diag-success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 32px;
    border: 1px solid var(--diag-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: t1-diag-pulse 2s ease-in-out infinite;
}

.t1-diag-success-icon svg {
    width: 32px;
    height: 32px;
}

@keyframes t1-diag-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(252,73,11,0.2); }
    50% { box-shadow: 0 0 0 12px rgba(252,73,11,0); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .t1-diag-header { padding: 16px 20px; }
    .t1-diag-main { padding: 40px 20px; }

    .t1-diag-options.grid-2,
    .t1-diag-options.grid-horizontal {
        grid-template-columns: 1fr;
    }

    .t1-diag-form-grid {
        grid-template-columns: 1fr;
    }

    .t1-diag-progress-track { width: 80px; }
}

@media (max-width: 480px) {
    .t1-diag-question { font-size: 20px; }
    .t1-diag-btn { padding: 14px 18px; font-size: 13px; }
}