/* =========================================================
   THULTHUL — HYPERTROPHY LOAD PLANNER
   FINAL DARK-ONLY PAGE THEME
   Page-specific CSS
========================================================= */

/* ---------------------------------------------------------
   DESIGN TOKENS
--------------------------------------------------------- */

.tt-hypertrophy {
    --tt-page-bg: #08090D;
    --tt-surface: #0E1016;
    --tt-surface-2: #12141C;
    --tt-surface-3: #171A23;

    --tt-text: #F8FAFC;
    --tt-text-soft: #D7DBE5;
    --tt-muted: #7D8494;
    --tt-muted-2: #5E6574;

    --tt-border: rgba(255, 255, 255, 0.075);
    --tt-border-strong: rgba(255, 255, 255, 0.13);

    --tt-purple: #4F46FF;
    --tt-purple-bright: #675FFF;
    --tt-purple-soft: #918BFF;
    --tt-purple-bg: rgba(79, 70, 255, 0.10);
    --tt-purple-bg-strong: rgba(79, 70, 255, 0.16);

    --tt-success: #6EE7B7;
    --tt-danger: #F87171;

    --tt-shadow: 0 24px 70px rgba(0, 0, 0, 0.30);
    --tt-radius: 16px;

    min-height: 100vh;
    color: var(--tt-text);
    background:
        radial-gradient(
            900px 500px at 80% 0%,
            rgba(79, 70, 255, 0.10),
            transparent 65%
        ),
        var(--tt-page-bg);
}

/* ---------------------------------------------------------
   PAGE CONTAINER
   Keeps content clear of the fixed/sticky navbar.
--------------------------------------------------------- */

.tt-hypertrophy .tt-container {
    width: min(1240px, calc(100% - 48px));
    margin-inline: auto;
}

/* If the shared navbar is fixed/sticky, the page must start
   below it. This is intentionally page-level so it does not
   alter the global navbar. */
.tt-hypertrophy {
    padding-top: 0;
}

.tt-hypertrophy-hero {
    padding: 92px 0 72px;
    border-bottom: 1px solid var(--tt-border);
    background:
        linear-gradient(
            180deg,
            rgba(79, 70, 255, 0.055),
            transparent 72%
        );
}

/* ---------------------------------------------------------
   HERO
--------------------------------------------------------- */

.tt-hypertrophy-hero .tt-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;

    color: var(--tt-purple-soft);
    font-size: 9px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: 1.8px;
    text-transform: uppercase;
}

.tt-hypertrophy-hero .tt-eyebrow::before {
    content: "";
    width: 24px;
    height: 1px;
    background: var(--tt-purple);
}

.tt-hypertrophy-hero h1 {
    max-width: 850px;
    margin: 16px 0 0;

    color: var(--tt-text);
    font-size: clamp(42px, 6vw, 76px);
    line-height: 0.98;
    letter-spacing: -3.8px;
    font-weight: 800;
}

.tt-hypertrophy-hero h1 span {
    color: var(--tt-purple-soft);
}

.tt-hypertrophy-hero p {
    max-width: 650px;
    margin: 22px 0 0;

    color: var(--tt-muted);
    font-size: 13px;
    line-height: 1.75;
}

/* ---------------------------------------------------------
   TOOL AREA
--------------------------------------------------------- */

.tt-hypertrophy-tool {
    padding: 52px 0 100px;
}

.tt-hypertrophy-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.58fr);
    gap: 32px;
    align-items: start;
}

/* ---------------------------------------------------------
   INPUT CARD
--------------------------------------------------------- */

.tt-hypertrophy-card {
    position: relative;
    padding: 30px;

    border: 1px solid var(--tt-border);
    border-radius: var(--tt-radius);

    background:
        linear-gradient(
            145deg,
            rgba(255, 255, 255, 0.035),
            rgba(255, 255, 255, 0.012)
        );

    box-shadow: var(--tt-shadow);
}

.tt-hypertrophy-card::before {
    content: "";
    position: absolute;
    inset: 0;

    border-radius: inherit;
    pointer-events: none;

    background:
        linear-gradient(
            135deg,
            rgba(79, 70, 255, 0.07),
            transparent 30%
        );
}

/* ---------------------------------------------------------
   TOOL HEADING
--------------------------------------------------------- */

.tt-tool-heading {
    position: relative;

    display: flex;
    align-items: flex-start;
    gap: 13px;

    margin-bottom: 28px;
}

.tt-tool-heading > span {
    width: 38px;
    height: 38px;

    display: grid;
    place-items: center;
    flex: 0 0 38px;

    border: 1px solid rgba(79, 70, 255, 0.30);
    border-radius: 10px;

    color: var(--tt-purple-soft);
    background: var(--tt-purple-bg);

    font-size: 10px;
    font-weight: 800;
}

.tt-tool-heading small {
    display: block;

    color: var(--tt-muted);
    font-size: 7px;
    font-weight: 800;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

.tt-tool-heading h2 {
    margin: 5px 0 0;

    color: var(--tt-text);
    font-size: 21px;
    line-height: 1.15;
    letter-spacing: -0.6px;
}

/* ---------------------------------------------------------
   FORM
--------------------------------------------------------- */

.tt-hypertrophy-card form {
    position: relative;

    display: flex;
    flex-direction: column;
    gap: 18px;
}

.tt-form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tt-form-group > label {
    color: var(--tt-text-soft);
    font-size: 9px;
    font-weight: 700;
}

.tt-form-group input,
.tt-form-group select {
    width: 100%;
    min-height: 48px;
    box-sizing: border-box;

    padding: 0 14px;

    border: 1px solid var(--tt-border-strong);
    border-radius: 10px;

    outline: none;

    color: var(--tt-text);
    background: #0A0C11;

    font-family: inherit;
    font-size: 11px;

    transition:
        border-color 160ms ease,
        box-shadow 160ms ease,
        background 160ms ease;
}

.tt-form-group input:hover,
.tt-form-group select:hover {
    border-color: rgba(255, 255, 255, 0.18);
}

.tt-form-group input:focus,
.tt-form-group select:focus {
    border-color: rgba(79, 70, 255, 0.75);

    box-shadow:
        0 0 0 3px rgba(79, 70, 255, 0.10),
        0 8px 25px rgba(0, 0, 0, 0.20);

    background: #0D0F16;
}

.tt-form-group input::placeholder {
    color: var(--tt-muted-2);
}

.tt-form-group select {
    cursor: pointer;
}

.tt-form-group select option {
    color: var(--tt-text);
    background: #0E1016;
}

/* ---------------------------------------------------------
   INPUT + UNIT
--------------------------------------------------------- */

.tt-input-unit {
    position: relative;
}

.tt-input-unit input {
    padding-right: 48px;
}

.tt-input-unit span {
    position: absolute;
    top: 50%;
    right: 14px;

    transform: translateY(-50%);

    color: var(--tt-muted);
    font-size: 9px;
    font-weight: 700;
}

/* ---------------------------------------------------------
   TWO COLUMN FORM
--------------------------------------------------------- */

.tt-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* ---------------------------------------------------------
   REP OPTIONS
--------------------------------------------------------- */

.tt-rep-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.tt-rep-options label {
    position: relative;
}

.tt-rep-options input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tt-rep-options label span {
    min-height: 43px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: 1px solid var(--tt-border-strong);
    border-radius: 9px;

    color: var(--tt-muted);
    background: #0A0C11;

    font-size: 9px;
    font-weight: 700;

    cursor: pointer;

    transition:
        color 160ms ease,
        border-color 160ms ease,
        background 160ms ease,
        transform 160ms ease;
}

.tt-rep-options label:hover span {
    color: var(--tt-text);
    border-color: rgba(79, 70, 255, 0.42);
}

.tt-rep-options input:checked + span {
    color: #FFFFFF;
    border-color: var(--tt-purple);
    background:
        linear-gradient(
            135deg,
            #4F46FF,
            #3B82F6
        );

    box-shadow:
        0 10px 28px rgba(79, 70, 255, 0.20);
}

.tt-rep-options input:checked + span:active {
    transform: scale(0.98);
}

/* ---------------------------------------------------------
   ERROR
--------------------------------------------------------- */

.tt-tool-error {
    padding: 12px 14px;

    border: 1px solid rgba(248, 113, 113, 0.22);
    border-radius: 9px;

    color: var(--tt-danger);
    background: rgba(248, 113, 113, 0.06);

    font-size: 9px;
    line-height: 1.55;
}

/* ---------------------------------------------------------
   SUBMIT
--------------------------------------------------------- */

.tt-tool-submit {
    width: 100%;
    min-height: 50px;

    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;

    margin-top: 3px;

    border: 0;
    border-radius: 10px;

    color: #FFFFFF;
    background:
        linear-gradient(
            135deg,
            #4F46FF,
            #2563EB
        );

    box-shadow:
        0 14px 35px rgba(79, 70, 255, 0.22);

    cursor: pointer;

    font-family: inherit;
    font-size: 11px;
    font-weight: 800;

    transition:
        transform 160ms ease,
        box-shadow 160ms ease,
        filter 160ms ease;
}

.tt-tool-submit:hover {
    filter: brightness(1.07);
    transform: translateY(-1px);

    box-shadow:
        0 17px 40px rgba(79, 70, 255, 0.30);
}

.tt-tool-submit:active {
    transform: translateY(0);
}

.tt-tool-submit span {
    font-size: 14px;
}

/* ---------------------------------------------------------
   SIDE INFORMATION
--------------------------------------------------------- */

.tt-hypertrophy-info {
    padding: 14px 4px;
}

.tt-hypertrophy-info .tt-eyebrow {
    color: var(--tt-purple-soft);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.tt-hypertrophy-info h2 {
    max-width: 470px;
    margin: 12px 0 0;

    color: var(--tt-text);
    font-size: clamp(27px, 3vw, 38px);
    line-height: 1.08;
    letter-spacing: -1.4px;
}

.tt-hypertrophy-info > p {
    max-width: 480px;
    margin: 17px 0 0;

    color: var(--tt-muted);
    font-size: 10px;
    line-height: 1.75;
}

/* ---------------------------------------------------------
   METHOD LIST
--------------------------------------------------------- */

.tt-method-list {
    margin-top: 30px;
    border-top: 1px solid var(--tt-border);
}

.tt-method-list > div {
    display: flex;
    align-items: center;
    gap: 14px;

    padding: 15px 0;

    border-bottom: 1px solid var(--tt-border);
}

.tt-method-list strong {
    width: 26px;
    flex: 0 0 26px;

    color: var(--tt-purple-soft);
    font-size: 8px;
    font-weight: 800;
}

.tt-method-list span {
    color: var(--tt-text-soft);
    font-size: 10px;
    line-height: 1.4;
}

/* ---------------------------------------------------------
   RESULT WRAPPER
--------------------------------------------------------- */

.tt-hypertrophy-result {
    margin-top: 36px;
    padding: 30px;

    border: 1px solid rgba(79, 70, 255, 0.23);
    border-radius: var(--tt-radius);

    background:
        radial-gradient(
            700px 280px at 15% 0%,
            rgba(79, 70, 255, 0.09),
            transparent 65%
        ),
        linear-gradient(
            145deg,
            rgba(255, 255, 255, 0.025),
            rgba(255, 255, 255, 0.012)
        );

    box-shadow: var(--tt-shadow);
}

.tt-result-heading > span {
    color: var(--tt-purple-soft);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.tt-result-heading h2 {
    margin: 7px 0 0;

    color: var(--tt-text);
    font-size: 21px;
    line-height: 1.15;
    letter-spacing: -0.65px;
}

/* ---------------------------------------------------------
   PRIMARY PLAN
--------------------------------------------------------- */

.tt-primary-plan {
    display: grid;
    grid-template-columns: 1.35fr 1fr 0.8fr;
    gap: 10px;

    margin-top: 22px;
}

.tt-primary-plan > div {
    min-height: 118px;
    box-sizing: border-box;

    display: flex;
    flex-direction: column;
    justify-content: center;

    padding: 19px;

    border: 1px solid var(--tt-border);
    border-radius: 12px;

    background:
        rgba(255, 255, 255, 0.025);
}

.tt-primary-plan > div:first-child {
    border-color: rgba(79, 70, 255, 0.42);

    background:
        linear-gradient(
            135deg,
            rgba(79, 70, 255, 0.15),
            rgba(37, 99, 235, 0.05)
        );

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.tt-primary-plan small {
    display: block;

    color: var(--tt-muted);
    font-size: 7px;
    font-weight: 800;
    letter-spacing: 1px;
}

.tt-primary-plan strong {
    display: block;

    margin-top: 8px;

    color: var(--tt-text);
    font-size: 24px;
    line-height: 1;
}

.tt-primary-plan > div:first-child strong {
    color: #9B96FF;
    font-size: 31px;
}

.tt-primary-plan strong span {
    color: var(--tt-muted);
    font-size: 10px;
}

.tt-primary-plan > div > span {
    display: block;
    margin-top: 6px;

    color: var(--tt-muted);
    font-size: 8px;
}

/* ---------------------------------------------------------
   SET-BY-SET PLAN
--------------------------------------------------------- */

.tt-hypertrophy-set-plan {
    margin-top: 34px;
}

.tt-set-plan-list {
    margin-top: 18px;

    overflow: hidden;

    border: 1px solid var(--tt-border-strong);
    border-radius: 13px;

    background: var(--tt-surface);
}

.tt-set-plan-row {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 0.7fr;
    align-items: center;

    min-height: 72px;
    padding: 0 19px;

    border-bottom: 1px solid var(--tt-border);

    transition:
        background 160ms ease;
}

.tt-set-plan-row:hover {
    background: rgba(79, 70, 255, 0.035);
}

.tt-set-plan-row:last-child {
    border-bottom: 0;
}

.tt-set-number {
    color: var(--tt-muted);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 1px;
}

.tt-set-weight strong,
.tt-set-reps strong,
.tt-set-rir strong {
    color: var(--tt-text);
    font-size: 17px;
}

.tt-set-weight span,
.tt-set-reps span,
.tt-set-rir span {
    margin-left: 4px;

    color: var(--tt-muted);
    font-size: 7px;
    font-weight: 700;
}

/* ---------------------------------------------------------
   HOW TO USE
--------------------------------------------------------- */

.tt-how-to {
    margin-top: 30px;
    padding: 25px;

    border: 1px solid var(--tt-border);
    border-radius: 14px;

    background: var(--tt-surface);
}

.tt-instruction-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 28px;

    margin-top: 19px;
}

.tt-instruction-list > div {
    display: flex;
    align-items: flex-start;
    gap: 13px;

    padding: 14px 0;

    border-bottom: 1px solid var(--tt-border);
}

.tt-instruction-list > div > span {
    color: var(--tt-purple-soft);
    font-size: 8px;
    font-weight: 800;
}

.tt-instruction-list p {
    margin: 0;

    color: var(--tt-muted);
    font-size: 9px;
    line-height: 1.65;
}

/* ---------------------------------------------------------
   PROGRESSIVE OVERLOAD
--------------------------------------------------------- */

.tt-hypertrophy-progression {
    margin-top: 30px;
    padding: 25px;

    border: 1px solid var(--tt-border);
    border-radius: 14px;

    background: var(--tt-surface);
}

.tt-progression-intro {
    max-width: 690px;
    margin: 10px 0 0;

    color: var(--tt-muted);
    font-size: 9px;
    line-height: 1.7;
}

.tt-progression-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;

    margin-top: 22px;
}

.tt-progression-step {
    position: relative;

    min-height: 190px;
    padding: 18px;

    box-sizing: border-box;

    border: 1px solid var(--tt-border);
    border-radius: 12px;

    background:
        linear-gradient(
            145deg,
            rgba(255, 255, 255, 0.025),
            rgba(255, 255, 255, 0.008)
        );

    transition:
        transform 160ms ease,
        border-color 160ms ease,
        background 160ms ease;
}

.tt-progression-step:hover {
    transform: translateY(-2px);

    border-color:
        rgba(79, 70, 255, 0.38);

    background:
        linear-gradient(
            145deg,
            rgba(79, 70, 255, 0.07),
            rgba(255, 255, 255, 0.012)
        );
}

.tt-progression-number {
    color: var(--tt-purple-soft);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 1px;
}

.tt-progression-content {
    margin-top: 27px;
}

.tt-progression-content small {
    display: block;

    color: var(--tt-muted);
    font-size: 7px;
    font-weight: 800;
    letter-spacing: 1px;
}

.tt-progression-content strong {
    display: block;

    margin-top: 7px;

    color: var(--tt-text);
    font-size: 21px;
    line-height: 1;
}

.tt-progression-reps {
    display: inline-flex;

    margin-top: 10px;
    padding: 6px 9px;

    border: 1px solid rgba(79, 70, 255, 0.16);
    border-radius: 6px;

    color: var(--tt-purple-soft);
    background: var(--tt-purple-bg);

    font-size: 8px;
    font-weight: 800;
}

.tt-progression-content p {
    margin: 12px 0 0;

    color: var(--tt-muted);
    font-size: 8px;
    line-height: 1.65;
}

/* ---------------------------------------------------------
   NEXT LOAD
--------------------------------------------------------- */

.tt-next-load {
    display: grid;
    grid-template-columns: auto 34px minmax(0, 1fr);
    align-items: center;
    gap: 17px;

    margin-top: 12px;
    padding: 18px 20px;

    border: 1px solid rgba(79, 70, 255, 0.34);
    border-radius: 12px;

    background:
        linear-gradient(
            135deg,
            rgba(79, 70, 255, 0.12),
            rgba(37, 99, 235, 0.045)
        );
}

.tt-next-load > div:first-child span {
    display: block;

    color: var(--tt-purple-soft);
    font-size: 7px;
    font-weight: 800;
    letter-spacing: 1px;
}

.tt-next-load > div:first-child strong {
    display: block;

    margin-top: 5px;

    color: var(--tt-text);
    font-size: 27px;
    line-height: 1;
}

.tt-next-load-arrow {
    width: 34px;
    height: 34px;

    display: grid;
    place-items: center;

    border-radius: 50%;

    color: #FFFFFF;
    background: var(--tt-purple);

    box-shadow:
        0 8px 22px rgba(79, 70, 255, 0.25);

    font-size: 15px;
    font-weight: 700;
}

.tt-next-load p {
    max-width: 650px;
    margin: 0;

    color: var(--tt-muted);
    font-size: 9px;
    line-height: 1.65;
}

/* ---------------------------------------------------------
   ESTIMATED STRENGTH
--------------------------------------------------------- */

.tt-estimated-strength {
    display: flex;
    align-items: center;
    gap: 14px;

    margin-top: 18px;
    padding: 14px 16px;

    border: 1px solid var(--tt-border);
    border-radius: 10px;

    background: #0A0C11;
}

.tt-estimated-strength > span {
    color: var(--tt-muted);
    font-size: 7px;
    font-weight: 800;
    letter-spacing: .9px;
}

.tt-estimated-strength strong {
    color: var(--tt-text);
    font-size: 15px;
}

.tt-estimated-strength p {
    margin: 0;

    color: var(--tt-muted);
    font-size: 8px;
    line-height: 1.5;
}

/* ---------------------------------------------------------
   NOTE
--------------------------------------------------------- */

.tt-tool-note {
    margin: 14px 0 0;

    color: var(--tt-muted-2);
    font-size: 8px;
    line-height: 1.65;
}

/* ---------------------------------------------------------
   NAVBAR OVERLAY SAFETY
   The shared navbar should remain untouched. These rules
   prevent this page's hero from sitting under it when the
   navbar is fixed.
--------------------------------------------------------- */

body:has(.tt-hypertrophy) {
    overflow-x: hidden;
}

body:has(.tt-hypertrophy) .tt-hypertrophy {
    scroll-margin-top: 90px;
}

/* ---------------------------------------------------------
   RESPONSIVE
--------------------------------------------------------- */

@media (max-width: 1050px) {

    .tt-hypertrophy .tt-container {
        width: min(100% - 36px, 900px);
    }

    .tt-hypertrophy-layout {
        grid-template-columns: 1fr;
    }

    .tt-hypertrophy-info {
        padding: 5px 0 0;
    }

    .tt-progression-steps {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 760px) {

    .tt-hypertrophy .tt-container {
        width: min(100% - 28px, 680px);
    }

    .tt-hypertrophy-hero {
        padding: 62px 0 50px;
    }

    .tt-hypertrophy-hero h1 {
        font-size: clamp(38px, 11vw, 58px);
        letter-spacing: -2.5px;
    }

    .tt-hypertrophy-tool {
        padding: 35px 0 70px;
    }

    .tt-primary-plan {
        grid-template-columns: 1fr;
    }

    .tt-primary-plan > div {
        min-height: 95px;
    }

    .tt-instruction-list {
        grid-template-columns: 1fr;
    }

    .tt-progression-steps {
        grid-template-columns: 1fr 1fr;
    }

    .tt-next-load {
        grid-template-columns: auto 34px;
    }

    .tt-next-load p {
        grid-column: 1 / -1;
    }
}

@media (max-width: 540px) {

    .tt-hypertrophy .tt-container {
        width: calc(100% - 22px);
    }

    .tt-hypertrophy-card,
    .tt-hypertrophy-result,
    .tt-how-to,
    .tt-hypertrophy-progression {
        padding: 19px;
        border-radius: 13px;
    }

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

    .tt-rep-options {
        grid-template-columns: 1fr 1fr;
    }

    .tt-set-plan-row {
        grid-template-columns: 1.1fr 1fr 1fr .75fr;
        min-height: 64px;
        padding: 0 12px;
    }

    .tt-set-weight strong,
    .tt-set-reps strong,
    .tt-set-rir strong {
        font-size: 14px;
    }

    .tt-set-weight span,
    .tt-set-reps span,
    .tt-set-rir span {
        display: block;
        margin: 2px 0 0;
    }

    .tt-progression-steps {
        grid-template-columns: 1fr;
    }

    .tt-progression-step {
        min-height: auto;
    }

    .tt-estimated-strength {
        align-items: flex-start;
        flex-direction: column;
        gap: 5px;
    }
}

@media (max-width: 380px) {

    .tt-hypertrophy-hero h1 {
        font-size: 35px;
    }

    .tt-set-plan-row {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 12px;
    }

    .tt-set-rir {
        text-align: left;
    }
}