/* =====================================================================
   Goldendoodle Weight Calculator — Stylesheet
   ===================================================================== */

/* ---- Root variables ---- */
.gdoodle-calc-wrapper {
    --gdoodle-primary:    #c27c3e;
    --gdoodle-primary-dk: #a0602a;
    --gdoodle-accent:     #f5ede3;
    --gdoodle-text:       #2d2d2d;
    --gdoodle-muted:      #6b6b6b;
    --gdoodle-border:     #e0c9b1;
    --gdoodle-success:    #2e7d4f;
    --gdoodle-success-bg: #eaf4ee;
    --gdoodle-error:      #b91c1c;
    --gdoodle-error-bg:   #fef2f2;
    --gdoodle-radius:     10px;
    --gdoodle-shadow:     0 4px 24px rgba(0,0,0,.09);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--gdoodle-text);
}

/* ---- Wrapper ---- */
.gdoodle-calc-wrapper {
    max-width: 680px;
    margin: 2rem auto;
    background: #fff;
    border: 1px solid var(--gdoodle-border);
    border-radius: 16px;
    box-shadow: var(--gdoodle-shadow);
    overflow: hidden;
}

/* ---- Header ---- */
.gdoodle-calc-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 24px 28px 20px;
    background: linear-gradient(135deg, var(--gdoodle-primary) 0%, #d4934d 100%);
    color: #fff;
}
.gdoodle-calc-paw  { font-size: 2.4rem; line-height: 1; }
.gdoodle-calc-title {
    margin: 0 0 4px;
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
}
.gdoodle-calc-subtitle {
    margin: 0;
    font-size: .875rem;
    opacity: .88;
}

/* ---- Unit toggle ---- */
.gdoodle-unit-toggle {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--gdoodle-border);
    background: var(--gdoodle-accent);
}
.gdoodle-unit-btn {
    flex: 1;
    padding: 10px 0;
    border: none;
    background: transparent;
    font-size: .875rem;
    font-weight: 500;
    color: var(--gdoodle-muted);
    cursor: pointer;
    transition: background .2s, color .2s;
    border-bottom: 3px solid transparent;
}
.gdoodle-unit-btn:hover  { background: #ecdec9; color: var(--gdoodle-text); }
.gdoodle-unit-btn.active {
    color: var(--gdoodle-primary-dk);
    border-bottom-color: var(--gdoodle-primary);
    font-weight: 700;
    background: #fff;
}

/* ---- Form ---- */
.gdoodle-calc-form { padding: 24px 28px; }

.gdoodle-calc-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
@media (max-width: 480px) {
    .gdoodle-calc-row { grid-template-columns: 1fr; }
}

.gdoodle-calc-field { display: flex; flex-direction: column; gap: 5px; }
.gdoodle-full       { grid-column: 1 / -1; }

.gdoodle-calc-field label {
    font-size: .825rem;
    font-weight: 600;
    color: var(--gdoodle-text);
}
.gdoodle-req      { color: var(--gdoodle-primary); }
.gdoodle-optional { font-weight: 400; color: var(--gdoodle-muted); font-style: italic; }
.gdoodle-hint     { font-size: .75rem; color: var(--gdoodle-muted); margin-top: 2px; }

.gdoodle-calc-field input,
.gdoodle-calc-field select {
    padding: 9px 12px;
    border: 1.5px solid var(--gdoodle-border);
    border-radius: var(--gdoodle-radius);
    font-size: .9rem;
    color: var(--gdoodle-text);
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
    width: 100%;
    box-sizing: border-box;
    appearance: auto;
}
.gdoodle-calc-field input:focus,
.gdoodle-calc-field select:focus {
    outline: none;
    border-color: var(--gdoodle-primary);
    box-shadow: 0 0 0 3px rgba(194,124,62,.18);
}
.gdoodle-calc-field input.gdoodle-invalid {
    border-color: var(--gdoodle-error);
    box-shadow: 0 0 0 3px rgba(185,28,28,.12);
}

/* ---- Optional section ---- */
.gdoodle-calc-optional-section { margin-bottom: 20px; }
.gdoodle-optional-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--gdoodle-accent);
    border: 1.5px dashed var(--gdoodle-border);
    border-radius: var(--gdoodle-radius);
    cursor: pointer;
    font-size: .875rem;
    color: var(--gdoodle-primary-dk);
    font-weight: 600;
    user-select: none;
    transition: background .2s;
}
.gdoodle-optional-toggle:hover { background: #ecdec9; }
.gdoodle-optional-toggle em { font-weight: 400; color: var(--gdoodle-success); }
.gdoodle-optional-icon { font-size: 1.1rem; transition: transform .25s; }
.gdoodle-optional-toggle.open .gdoodle-optional-icon { transform: rotate(45deg); }

.gdoodle-optional-fields {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease, padding .3s ease;
    padding: 0 0;
}
.gdoodle-optional-fields.open {
    max-height: 160px;
    padding: 14px 0 0;
}

/* ---- Error ---- */
.gdoodle-error {
    display: none;
    background: var(--gdoodle-error-bg);
    border: 1px solid #fca5a5;
    color: var(--gdoodle-error);
    padding: 10px 14px;
    border-radius: var(--gdoodle-radius);
    font-size: .875rem;
    margin-bottom: 16px;
}
.gdoodle-error.visible { display: block; }

/* ---- Calculate button ---- */
.gdoodle-calc-btn {
    width: 100%;
    padding: 13px 0;
    background: linear-gradient(135deg, var(--gdoodle-primary) 0%, #d4934d 100%);
    color: #fff;
    border: none;
    border-radius: var(--gdoodle-radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: .5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: filter .2s, transform .15s;
    box-shadow: 0 3px 12px rgba(194,124,62,.35);
}
.gdoodle-calc-btn:hover  { filter: brightness(1.07); }
.gdoodle-calc-btn:active { transform: scale(.98); }
.gdoodle-btn-icon { font-size: 1.25rem; }

/* ---- Results ---- */
.gdoodle-results { padding: 0 28px 28px; }
.gdoodle-results[hidden] { display: none; }
.gdoodle-results-inner {
    background: var(--gdoodle-success-bg);
    border: 1.5px solid #a7d7b8;
    border-radius: 12px;
    padding: 20px 22px 16px;
}
.gdoodle-results-header {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gdoodle-success);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.gdoodle-results-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}
@media (max-width: 420px) {
    .gdoodle-results-main { grid-template-columns: 1fr; }
}

.gdoodle-result-central,
.gdoodle-result-range-box {
    background: #fff;
    border: 1px solid #c1e4cc;
    border-radius: 8px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.gdoodle-result-label {
    font-size: .75rem;
    font-weight: 600;
    color: var(--gdoodle-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.gdoodle-result-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gdoodle-success);
    line-height: 1.1;
}
.gdoodle-result-range {
    font-size: 1.2rem;
    font-weight: 700;
    color: #276640;
}

.gdoodle-results-meta {
    font-size: .82rem;
    color: var(--gdoodle-muted);
    margin-bottom: 10px;
    line-height: 1.6;
}
.gdoodle-results-meta strong { color: var(--gdoodle-text); }
.gdoodle-results-disclaimer {
    margin: 0;
    font-size: .78rem;
    color: var(--gdoodle-muted);
    line-height: 1.5;
    font-style: italic;
}