/* ══ Wednesday Projects — Calculator Styles ══
   Used by insights/feasibility-calculator.html only.
   Load after common.css, fonts.css, and results.css.

   TABLE OF CONTENTS
   -----------------
   BACK LINK           .calc-back-wrap / .calc-back-inner / .calc-back
   LAYOUT              .calc-wrapper
   PROGRESS BAR        .progress-bar / .progress-step / .progress-dot
   STEP HEADER         .step-eyebrow / .step-title / .step-panel
   FIELDS              .field-group / .field-label / .field-input
   OPTION CARDS        .option-grid / .option-card
   STEPPERS            .stepper-row / .stepper-btn
   TOGGLES             .toggle-row / .toggle-switch
   CHECKBOXES          .checkbox-grid / .checkbox-item
   BUTTONS             .btn-next / .btn-back
   VALIDATION TOAST    #calc-toast
   CALCULATE SCREEN    #calc-screen / .calc-btn / .calc-spinner / #result-panel
   CALCULATOR CTA      .calc-cta-wrap (shared, results.css) / #calculator-cta-container margin override
   DEBUG MODAL         #debug-modal / #debug-panel
   WET ROOM GRID       .wet-room-grid / .wet-area-sub
   RENO FIELDS         #reno-fields overrides
   SIZE UPGRADE MODAL  #size-upgrade-modal / #size-upgrade-panel
   SUBURB AUTOCOMPLETE .suburb-wrap / #suburb-autocomplete / .ac-item
   ESTIMATE FORM       .estimate-form-row
   RESPONSIVE          breakpoints
   ══════════════════════════════════════════════════════════════════════════════ */

/* ══ BACK LINK ══ */
.calc-back-wrap{background:var(--ivory-light);padding:32px 48px 0;max-width:100%}
.calc-back-inner{max-width:740px;margin:0 auto}
.calc-back{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);text-decoration:none;font-family:var(--sans);font-weight:400}
.calc-back:hover{text-decoration:underline;text-underline-offset:3px}

/* ══ LAYOUT ══ */
.calc-wrapper{max-width:740px;margin:0 auto;padding:var(--padding-wrap)}
@media(max-width:600px){.calc-back-wrap{padding:24px 20px 0}.calc-wrapper{padding:36px 18px 60px;padding-top:80px !important}}

/* ══ PROGRESS BAR ══ */
.progress-bar{display:flex;align-items:flex-start;margin-bottom:48px}
.progress-step{display:flex;flex-direction:column;align-items:center;flex:1;position:relative}
.progress-step::after{content:'';position:absolute;top:13px;left:50%;width:100%;height:1px;background:var(--ivory-dark);z-index:var(--z-base)}
.progress-step:last-child::after{display:none}
.progress-dot{width:26px;height:26px;border-radius:50%;border:1px solid var(--ivory-dark);background:var(--ivory-light);display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--mid-grey);z-index:var(--z-base);position:relative;transition:all .25s}
.progress-step.active .progress-dot{background:var(--gold);border-color:var(--gold);color:var(--charcoal);font-weight:500}
.progress-step.done .progress-dot{background:var(--charcoal);border-color:var(--charcoal);color:var(--ivory-light)}
.progress-step.done::after{background:var(--charcoal)}
.progress-label{font-size:8px;letter-spacing:.12em;text-transform:uppercase;color:var(--mid-grey);margin-top:7px;text-align:center}
.progress-step.active .progress-label{color:var(--gold)}
.progress-step.done .progress-label{color:var(--mid-grey)}
.progress-step.done .progress-dot:hover{background:var(--gold);border-color:var(--gold);color:var(--charcoal)}
.progress-step[onclick]{cursor:pointer}

/* ══ STEP HEADER ══ */
.step-eyebrow{font-size:9px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.step-title{font-family:var(--serif);font-size:clamp(24px,4vw,36px);font-weight:300;color:var(--charcoal);line-height:1.2;margin-bottom:10px}
.step-subtitle{font-size:13px;color:var(--mid-grey);line-height:1.8;margin-bottom:var(--spacing-section);max-width:520px}
.step-divider{width:36px;height:1px;background:var(--gold);margin-bottom:var(--spacing-section)}
.step-panel{display:none;animation:fadeUp .35s ease both}
.step-panel.active{display:block}

/* ══ FIELDS ══ */
.field-group{margin-bottom:26px}
.field-label{font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:#4a4845;margin-bottom:9px;display:block}
.field-note{font-size:11px;color:var(--mid-grey);margin-top:6px;letter-spacing:.02em;line-height:1.6}
.field-input{font-family:var(--sans);font-size:14px;font-weight:300;color:var(--charcoal);background:var(--ivory-mid);border:none;border-bottom:2px solid var(--ivory-dark);padding:12px 14px;width:100%;outline:none;transition:border-color .25s;appearance:none}
.field-input:focus{border-bottom-color:var(--gold)}
.field-input::placeholder{color:#9E9A94}

/* ══ OPTION CARDS ══ */
.option-grid{display:grid;gap:8px}
.option-grid.cols-2{grid-template-columns:1fr 1fr;grid-auto-rows:1fr}
.option-grid.cols-3{grid-template-columns:1fr 1fr 1fr}
.option-card{border:1px solid var(--ivory-dark);padding:15px 17px;cursor:pointer;transition:all .2s;background:var(--ivory-light);position:relative;box-sizing:border-box}
.option-grid .option-card{display:flex;flex-direction:column;height:100%}
.option-card[style*="align-items:center"]{display:flex;flex-direction:row;height:auto;align-items:center}
.option-card:hover{border-color:var(--gold);background:var(--ivory)}
.option-card.selected{border-color:var(--gold);background:var(--ivory);box-shadow:inset 0 0 0 1px var(--gold)}
.option-card input[type=radio]{position:absolute;opacity:0;width:0;height:0}
.option-card-title{font-size:13px;font-weight:400;color:var(--charcoal);margin-bottom:3px}
.option-card-desc{font-size:11px;color:var(--mid-grey);line-height:1.55}
.option-card.selected .option-card-title{color:var(--gold)}
#step-1 .option-grid .option-card{display:flex;flex-direction:column;justify-content:flex-start;height:100%;min-height:80px}
#step-1 .option-grid{align-items:stretch}

/* ══ STEPPERS ══ */
.stepper-row{display:flex;align-items:center;justify-content:space-between;padding:13px 17px;background:var(--ivory-mid);border-bottom:1px solid var(--ivory-dark);margin-bottom:2px}
.stepper-label{font-size:13px;color:var(--charcoal)}
.stepper-controls{display:flex;align-items:center}
.stepper-btn{width:30px;height:30px;border:1px solid var(--ivory-dark);background:var(--ivory-light);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:17px;color:var(--charcoal);transition:all .2s;user-select:none}
.stepper-btn:hover{border-color:var(--gold);color:var(--gold)}
.stepper-val{width:38px;text-align:center;font-size:14px;font-weight:400;color:var(--charcoal)}

/* ══ TOGGLES ══ */
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:13px 17px;background:var(--ivory-mid);border-bottom:1px solid var(--ivory-dark);margin-bottom:2px;cursor:pointer}
.toggle-label{font-size:13px;color:var(--charcoal)}
.toggle-switch{width:38px;height:21px;border-radius:11px;border:1px solid var(--ivory-dark);background:var(--ivory-light);position:relative;flex-shrink:0;transition:all .25s}
.toggle-switch::after{content:'';position:absolute;top:3px;left:3px;width:13px;height:13px;border-radius:50%;background:var(--light-grey);transition:all .25s}
.toggle-row.on .toggle-switch{background:var(--gold);border-color:var(--gold)}
.toggle-row.on .toggle-switch::after{left:20px;background:#fff}

/* ══ CHECKBOXES ══ */
.checkbox-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}
@media(max-width:480px){.checkbox-grid{grid-template-columns:1fr}}
.checkbox-item{display:flex;align-items:flex-start;gap:10px;padding:11px 13px;background:var(--ivory-mid);cursor:pointer;border:1px solid transparent;transition:all .2s}
.checkbox-item:hover{border-color:var(--gold)}
.checkbox-item.checked{border-color:var(--gold);background:var(--ivory)}
.checkbox-box{width:15px;height:15px;border:1px solid var(--ivory-dark);background:var(--ivory-light);flex-shrink:0;margin-top:1px;position:relative;transition:all .2s}
.checkbox-item.checked .checkbox-box{background:var(--gold);border-color:var(--gold)}
.checkbox-item.checked .checkbox-box::after{content:'✓';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:10px;color:var(--charcoal)}
.checkbox-text{font-size:12px;color:var(--mid-grey);line-height:1.5}

/* ══ BUTTONS ══ */
.btn-next{font-family:var(--sans);font-size:11px;font-weight:400;letter-spacing:.2em;text-transform:uppercase;color:var(--charcoal);background:var(--gold-light);border:none;padding:15px 44px;cursor:pointer;transition:background .25s,letter-spacing .25s;margin-top:28px}
.btn-next:hover{background:var(--gold);letter-spacing:.26em}
.btn-back{font-family:var(--sans);font-size:10px;font-weight:400;letter-spacing:.16em;text-transform:uppercase;color:var(--mid-grey);background:none;border:none;cursor:pointer;padding:15px 0;margin-top:28px;margin-right:18px;transition:color .25s}
.btn-back:hover{color:var(--mid-grey)}

/* ══ VALIDATION TOAST ══ */
#calc-toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:var(--z-toast);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s ease,visibility .25s ease;background:var(--charcoal);color:var(--ivory-light);font-family:var(--sans);font-size:13px;font-weight:300;letter-spacing:.08em;padding:22px 40px;box-shadow:0 16px 48px rgba(0,0,0,.55);max-width:min(480px,90vw);text-align:center;line-height:1.6}
#calc-toast.show{opacity:1;visibility:visible}

/* ══ REQ ASTERISK ══ */
.req{color:var(--gold);margin-left:2px}

/* ══ CALCULATE SCREEN ══ */
#calc-screen{min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:64px 32px;animation:fadeUp .4s ease both}
.calc-btn{font-family:var(--sans);font-size:12px;font-weight:400;letter-spacing:.22em;text-transform:uppercase;color:var(--charcoal);background:var(--gold-light);border:none;padding:18px 56px;cursor:pointer;transition:background .3s,letter-spacing .3s;margin-top:8px}
.calc-btn:hover{background:var(--gold);letter-spacing:.28em}
.calc-btn:disabled{opacity:.6;cursor:default;letter-spacing:.22em}
.calc-spinner{display:none;width:40px;height:40px;border:1px solid var(--ivory-dark);border-top-color:var(--gold);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 28px}
@keyframes spin{to{transform:rotate(360deg)}}
#result-panel{opacity:0;transition:opacity 1.2s cubic-bezier(0.25,0.46,0.45,0.94)}
#result-panel.visible{opacity:1}

/* ══ CALCULATOR CTA ══ */
#calculator-cta-container{margin-top:36px}

/* ══ DEBUG MODAL ══ */
#debug-modal{position:fixed;inset:0;z-index:var(--z-modal);background:rgba(15,14,12,.85);display:none;align-items:flex-start;justify-content:center;padding:16px;overflow-y:auto}
#debug-modal.open{display:flex}
#debug-panel{background:#1a1a18;border:1px solid var(--gold);width:100%;max-width:720px;max-height:90vh;overflow-y:auto;padding:32px 36px;font-family:monospace;font-size:12px;color:#d4bc8f;line-height:1.7;position:relative}
#debug-panel h2{font-family:var(--sans);font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:16px;font-weight:400}
#debug-panel .dbg-section{border-top:1px solid rgba(184,155,106,.2);padding-top:12px;margin-top:12px}
#debug-panel .dbg-label{color:#a8a49c;font-size:11px}
#debug-panel .dbg-val{color:#f0ede6}
#debug-panel .dbg-row{display:flex;justify-content:space-between;gap:16px;padding:2px 0}
#debug-close{position:absolute;top:14px;right:18px;background:none;border:none;color:#a8a49c;font-size:20px;cursor:pointer;font-family:var(--sans);line-height:1}
#debug-close:hover{color:var(--gold)}
#debug-hotkey-hint{font-family:var(--sans);font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:rgba(184,155,106,.4);margin-top:16px;text-align:right}
@media(min-width:1280px){
  #debug-modal{align-items:stretch;justify-content:stretch;padding:0}
  #debug-panel{max-width:none;width:100%;height:100vh;max-height:100vh;border:none;padding:28px 36px 20px;overflow:hidden;display:flex;flex-direction:column;box-sizing:border-box}
  #debug-panel h2{flex-shrink:0;margin-bottom:12px}
  #debug-content{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 32px;overflow:hidden;flex:1;min-height:0}
  #debug-col-a,#debug-col-b,#debug-col-c{overflow:hidden;display:flex;flex-direction:column;min-height:0}
  #debug-hotkey-hint{flex-shrink:0;margin-top:10px}
}

/* ══ WET ROOM GRID ══ */
.wet-room-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.wet-room-col{display:flex;flex-direction:column}
.wet-area-sub{padding:8px 10px 10px;background:var(--ivory);border-top:1px solid var(--ivory-dark);transition:opacity .2s}
.wet-area-estimate{font-family:var(--sans);font-size:11px;color:var(--mid-grey);margin-bottom:6px}
.wet-area-input{margin-top:6px;font-family:var(--sans);font-size:13px;transition:opacity .2s,border-color .25s}
@media(max-width:600px){.wet-room-grid{grid-template-columns:1fr}}

/* ══ RENO FIELDS ══ */
#reno-fields .field-label,#reno-fields .field-note,#reno-fields p.field-note{color:var(--charcoal)}

/* ══ SIZE UPGRADE MODAL ══ */
#size-upgrade-modal{position:fixed;inset:0;z-index:var(--z-modal-back);background:rgba(15,14,12,.65);display:none;align-items:center;justify-content:center;padding:24px}
#size-upgrade-modal.open{display:flex}
#size-upgrade-panel{background:var(--ivory-light);border-top:3px solid var(--gold);max-width:420px;width:100%;padding:36px 40px;text-align:center}
#size-upgrade-panel h3{font-family:var(--serif);font-size:22px;font-weight:300;color:var(--charcoal);line-height:1.3;margin-bottom:12px}
#size-upgrade-panel p{font-size:13px;color:var(--mid-grey);line-height:1.75;margin-bottom:28px}
.upgrade-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.upgrade-btn-yes{font-family:var(--sans);font-size:11px;font-weight:400;letter-spacing:.18em;text-transform:uppercase;color:var(--charcoal);background:var(--gold-light);border:none;padding:13px 28px;cursor:pointer;transition:background .25s}
.upgrade-btn-yes:hover{background:var(--gold)}
.upgrade-btn-no{font-family:var(--sans);font-size:11px;font-weight:400;letter-spacing:.18em;text-transform:uppercase;color:var(--mid-grey);background:none;border:1px solid var(--ivory-dark);padding:13px 28px;cursor:pointer;transition:border-color .25s,color .25s}
.upgrade-btn-no:hover{border-color:var(--gold);color:var(--charcoal)}
@media(max-width:480px){
  #size-upgrade-panel{max-width:calc(100vw - 32px);padding:28px 20px}
  .upgrade-btns{flex-direction:column}
  .upgrade-btn-yes,.upgrade-btn-no{width:100%;padding:15px 20px}
}

/* ══ SUBURB AUTOCOMPLETE ══ */
.suburb-wrap{position:relative}
#suburb-autocomplete{position:absolute;left:0;right:0;background:#fff;border:1px solid var(--ivory-mid);border-top:none;z-index:var(--z-dropdown);display:none;max-height:240px;overflow-y:auto;-webkit-overflow-scrolling:touch;box-shadow:0 8px 24px rgba(28,28,26,.10)}
.ac-item{padding:12px 14px;cursor:pointer;border-bottom:1px solid var(--ivory-mid);display:flex;align-items:center;justify-content:space-between;min-height:44px}
.ac-item:last-child{border-bottom:none}
.ac-item:hover,.ac-item.ac-active{background:var(--ivory)}
.ac-name{font-size:13px;color:var(--charcoal)}
@media(max-width:600px){#suburb-autocomplete{position:fixed;left:16px;right:16px;top:auto;max-height:240px}}

/* ══ ESTIMATE FORM ══ */
.estimate-form-row{display:flex;gap:10px;flex-wrap:wrap}

/* ══ RESPONSIVE ══ */
@media(max-width:768px){
  #reno-fields .field-group>div[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr !important;gap:16px !important}
  #wet-rooms-section>div[style*="grid-template-columns:1fr 1fr 1fr"]{grid-template-columns:1fr !important;gap:12px !important}
  #wet-rooms-section .stepper-row{flex-direction:row !important;align-items:center !important;justify-content:space-between !important;padding:12px 14px !important;text-align:left !important;gap:0 !important}
  #wet-rooms-section .stepper-label{margin-bottom:0 !important}
  #reno-fields .field-input{width:100% !important;max-width:100% !important}
  #reno-fields .field-group{margin-bottom:20px}
}
@media(max-width:600px){
  .option-grid.cols-2,.option-grid.cols-3{grid-template-columns:1fr}
}