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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #f5f5f0;
    color: #2a2f1e;
    min-height: 100vh;
}

.view {
    min-height: 100vh;
}

/* ── Login ── */

.login-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    gap: 2.5rem;
}

h1 {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.15em;
}

.brand-line1 {
    font-size: clamp(1rem, 2.8vw, 1.8rem);
    font-weight: 200;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #4a5038;
}

.brand-line2 {
    font-size: clamp(2.2rem, 7vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #5c7a2e;
    line-height: 0.95;
}

.login-form {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 340px;
    gap: 0.4rem;
    position: relative;
    padding-bottom: 1.6rem;
}

.login-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #8a8e78;
    margin-top: 0.6rem;
}

.login-input {
    width: 100%;
    padding: 0.75rem 1.2rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: #2a2f1e;
    background: #fff;
    border: 1px solid #d4d6cc;
    border-radius: 10px;
    outline: none;
    transition: all 0.3s ease;
}

.login-input::placeholder {
    color: #b0b3a4;
}

.login-input:focus {
    border-color: #7F9E50;
    box-shadow: 0 0 0 3px rgba(127, 158, 80, 0.12);
}

.login-submit {
    margin-top: 1.2rem;
    width: 100%;
    padding: 0.8rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: #fff;
    background: #5c7a2e;
    border: 1px solid #5c7a2e;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-submit:hover {
    background: #6b8d36;
    border-color: #6b8d36;
    box-shadow: 0 4px 16px rgba(92, 122, 46, 0.2);
}

.login-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.login-spinner {
    display: none;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin-left: 0.5rem;
    vertical-align: middle;
}

.login-spinner:not([hidden]) {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.login-error {
    font-size: 0.8rem;
    color: #c45c5c;
    text-align: center;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.login-error:empty {
    display: none;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* ── Tracker nav ── */

.tracker-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: #fff;
    border-bottom: 1px solid #e4e5de;
}

.tracker-nav-brand {
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #101423;
}

.tracker-nav-logout {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.4rem 1.2rem;
    color: #8a8e78;
    border: 1px solid #d4d6cc;
    border-radius: 100px;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tracker-nav-logout:hover {
    color: #2a2f1e;
    border-color: #aab09a;
}

/* ── Tracker body ── */

.tracker-body {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem 4rem;
}

.tracker-greeting {
    font-size: 1.6rem;
    font-weight: 300;
    color: #2a2f1e;
    margin-bottom: 2.5rem;
    text-align: center;
}

/* ── Horizontal progress bar ── */

.tracker-progress {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    margin-bottom: 3rem;
    padding: 0 1rem;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
    min-width: 0;
}

.progress-node-row {
    display: flex;
    align-items: center;
    width: 100%;
}

.progress-line-before,
.progress-line-after {
    flex: 1;
    height: 3px;
    background: #e0e1d9;
    transition: background 0.3s;
}

.progress-step:first-child .progress-line-before,
.progress-step:last-child .progress-line-after {
    visibility: hidden;
}

.progress-step--complete .progress-line-before,
.progress-step--complete .progress-line-after,
.progress-step--active .progress-line-before {
    background: #7F9E50;
}

.progress-node {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2.5px solid #d4d6cc;
    background: #f5f5f0;
    flex-shrink: 0;
    transition: all 0.3s;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-step--complete .progress-node {
    border-color: #7F9E50;
    background: #7F9E50;
}

.progress-step--active .progress-node {
    border-color: #7F9E50;
    background: #7F9E50;
    box-shadow: 0 0 0 4px rgba(127, 158, 80, 0.15), 0 0 16px rgba(127, 158, 80, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(127, 158, 80, 0.15), 0 0 16px rgba(127, 158, 80, 0.2); }
    50% { box-shadow: 0 0 0 7px rgba(127, 158, 80, 0.08), 0 0 24px rgba(127, 158, 80, 0.15); }
}

.progress-step-label {
    margin-top: 0.6rem;
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: #aab09a;
    text-align: center;
    line-height: 1.3;
    padding: 0 0.2rem;
    transition: color 0.2s;
    cursor: pointer;
}

.progress-step--complete .progress-step-label {
    color: #6b8d36;
}

.progress-step--active .progress-step-label {
    color: #5c7a2e;
    font-weight: 500;
}

/* ── Detail panels ── */

.tracker-details {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.detail-panel {
    overflow: hidden;
    border-bottom: 1px solid #e8e9e2;
    transition: background 0.2s;
}

.detail-panel.is-active {
    background: rgba(127, 158, 80, 0.06);
    border-color: rgba(127, 158, 80, 0.15);
}

.detail-panel-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    cursor: pointer;
    user-select: none;
}

.detail-panel-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid #d4d6cc;
    background: transparent;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-panel--complete .detail-panel-dot {
    border-color: #7F9E50;
    background: #7F9E50;
}

.detail-panel--active .detail-panel-dot {
    border-color: #7F9E50;
    background: #7F9E50;
    box-shadow: 0 0 6px rgba(127, 158, 80, 0.35);
}

.detail-panel-name {
    font-size: 0.88rem;
    font-weight: 400;
    color: #8a8e78;
    flex: 1;
}

.detail-panel--complete .detail-panel-name {
    color: #4a5038;
}

.detail-panel--active .detail-panel-name {
    color: #5c7a2e;
    font-weight: 500;
}

.detail-panel-badge {
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    flex-shrink: 0;
}

.detail-panel--complete .detail-panel-badge {
    color: #fff;
    background: #5c7a2e;
}

.detail-panel--active .detail-panel-badge {
    color: #fff;
    background: #5c7a2e;
}

.detail-panel--pending .detail-panel-badge {
    color: #aab09a;
    border: 1px solid #e0e1d9;
}

.detail-panel-chevron {
    color: #c8cab8;
    transition: transform 0.2s, color 0.2s;
    flex-shrink: 0;
}

.detail-panel.is-expanded .detail-panel-chevron {
    transform: rotate(90deg);
    color: #8a8e78;
}

.detail-panel-content {
    display: none;
    padding: 0 1rem 1rem 2.75rem;
}

.detail-panel.is-expanded .detail-panel-content {
    display: block;
}

.detail-panel-desc {
    font-size: 0.82rem;
    line-height: 1.6;
    color: #6b6f5e;
    margin-bottom: 0.4rem;
}

.detail-panel-notes-label {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #aab09a;
    margin-top: 0.6rem;
    margin-bottom: 0.25rem;
}

.detail-panel-notes {
    font-size: 0.82rem;
    line-height: 1.6;
    color: #4a5038;
    white-space: pre-wrap;
}

/* ── Mobile optimizations ── */

@media (max-width: 600px) {
    .tracker-nav {
        padding: 0.75rem 1rem;
    }

    .tracker-nav-brand {
        font-size: 0.7rem;
    }

    .tracker-nav-logout {
        font-size: 0.68rem;
        padding: 0.35rem 0.9rem;
    }

    .tracker-body {
        padding: 1.5rem 1rem 3rem;
    }

    .tracker-greeting {
        font-size: 1.2rem;
        margin-bottom: 1.5rem;
    }

    .tracker-progress {
        margin-bottom: 2rem;
        padding: 0 0.5rem;
    }

    .progress-step {
        min-width: 0;
    }

    .progress-node {
        width: 14px;
        height: 14px;
    }

    .progress-step-label {
        display: none;
    }

    .progress-step--active .progress-step-label {
        display: block;
        font-size: 0.6rem;
    }

    .login-input {
        font-size: 16px;
    }

    .detail-panel-header {
        padding: 0.75rem 0.75rem;
        gap: 0.5rem;
    }

    .detail-panel-name {
        font-size: 0.82rem;
    }

    .detail-panel-badge {
        font-size: 0.55rem;
        padding: 0.15rem 0.45rem;
    }

    .detail-panel-content {
        padding: 0 0.75rem 0.75rem 2.25rem;
    }

    .detail-panel-desc,
    .detail-panel-notes {
        font-size: 0.78rem;
    }

    .login-center {
        padding: 1.5rem;
        gap: 2rem;
    }

    .login-form {
        max-width: 100%;
    }
}