/* ======================================
   TOOLPACK MARŻA
   Kalkulator marży i narzutu
====================================== */

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

:root {
    --blue: #3B82F6;
    --green: #10B981;

    --text: #1f2937;
    --light: #64748b;

    --background: #f8fafc;
    --white: #ffffff;
}

body {
    font-family: "Inter", sans-serif;

    background: linear-gradient(
        135deg,
        #e8f1ff 0%,
        #e5f5f4 50%,
        #e3f8eb 100%
    );

    color: var(--text);
}

/* ======================================
   GŁÓWNY KONTENER
====================================== */

.tool-container {
    max-width: 900px;
    margin: auto;
    padding: 25px 24px;
}

/* ======================================
   HEADER
====================================== */

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
}

.tool-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
}

.tool-logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    color: white;

    background: linear-gradient(
        135deg,
        var(--blue),
        var(--green)
    );
}

.tool-logo span {
    font-size: 24px;
    font-weight: 700;
}

.back-link {
    text-decoration: none;
    color: var(--light);
    font-weight: 600;
    transition: .2s;
}

.back-link:hover {
    color: var(--blue);
}

/* ======================================
   NAGŁÓWEK NARZĘDZIA
====================================== */

.tool-title {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 35px;
}

.tool-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;

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

    background: linear-gradient(
        135deg,
        #DBEAFE,
        #BFDBFE
    );

    border: 1px solid rgba(59,130,246,.15);

    box-shadow:
        0 4px 10px rgba(59,130,246,.10),
        inset 0 1px 0 rgba(255,255,255,.65);
}

.tool-icon img {
    width: 34px;
    height: 34px;
    display: block;
}

.tool-title h1 {
    font-size: 36px;
    letter-spacing: -1px;
}

.tool-title p {
    margin-top: 8px;
    color: var(--light);
    font-size: 15px;
}

/* ======================================
   TOOL TABS – PIGUŁKI
====================================== */

.tool-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.tab {
    width: 160px;
    height: 52px;

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

    padding: 0 18px;

    border: 1px solid rgba(59,130,246,.15);
    border-radius: 999px;

    background: white;
    color: #334155;

    font-size: 15px;
    font-family: inherit;
    font-weight: 600;

    cursor: pointer;

    box-shadow:
        0 6px 18px rgba(0,0,0,.05);

    transition:
        transform .2s ease,
        box-shadow .2s ease,
        color .2s ease,
        background .2s ease;
}

.tab:hover {
    color: var(--blue);
    transform: translateY(-2px);

    box-shadow:
        0 10px 22px rgba(59,130,246,.10);
}

.tab.active {
    color: #166534;
    cursor: default;

    background: linear-gradient(
        135deg,
        #DCFCE7,
        #BBF7D0
    );

    border-color: transparent;

    box-shadow:
        0 8px 20px rgba(59,130,246,.18);
}

/* ======================================
   KARTA KALKULATORA
====================================== */

.calculator-card {
    background: white;
    border-radius: 24px;
    padding: 28px;

    box-shadow:
        0 15px 35px rgba(0,0,0,.05);
}

.calculator-mode {
    display: none;
}

.calculator-mode.active {
    display: block;
}

/* ======================================
   POLA INPUT
====================================== */

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: flex;
    align-items: center;
    gap: 8px;

    margin-bottom: 10px;

    font-weight: 600;
    font-size: 16px;
}

.input-group input,
.input-group select {
    width: 100%;
    height: 58px;

    border: none;
    outline: none;

    background: #f8fafc;
    border-radius: 16px;

    padding: 0 18px;

    font-size: 18px;
    font-family: inherit;
    color: var(--text);

    transition: .2s;
}

.input-group input:focus,
.input-group select:focus {
    background: white;

    box-shadow:
        0 0 0 3px rgba(59,130,246,.15);
}

/* ======================================
   GŁÓWNY PRZYCISK
====================================== */

.calculator-card button.calculate-button {
    width: 100%;
    height: 58px;

    border: none;
    border-radius: 16px;

    background: linear-gradient(
        135deg,
        var(--blue),
        var(--green)
    );

    color: white;
    font-size: 18px;
    font-weight: 600;
    font-family: inherit;

    cursor: pointer;
    transition: .2s;
}

.calculator-card button.calculate-button:hover {
    transform: translateY(-2px);

    box-shadow:
        0 12px 25px rgba(59,130,246,.25);
}

/* ======================================
   WYNIK
====================================== */

.result-card {
    margin-top: 20px;

    background: white;
    border-radius: 24px;
    padding: 25px;

    text-align: center;

    box-shadow:
        0 10px 30px rgba(0,0,0,.04);
}

.result-card h2 {
    font-size: 20px;
}

.result-number {
    margin: 15px 0;

    font-size: 38px;
    font-weight: 700;

    background: linear-gradient(
        135deg,
        var(--blue),
        var(--green)
    );

    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.result-card p {
    color: var(--light);
    line-height: 1.6;
}

/* ======================================
   POLECANE
====================================== */

.suggestions {
    margin-top: 30px;
}

.suggestions h2 {
    font-size: 22px;
    margin-bottom: 20px;
}

.suggestion-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.suggestion-list a {
    display: flex;
    align-items: center;
    gap: 10px;

    text-decoration: none;
    background: white;
    color: #334155;

    padding: 14px 22px;
    border-radius: 999px;

    box-shadow:
        0 6px 18px rgba(0,0,0,.05);

    transition: .2s;
}

.suggestion-list a:hover {
    color: var(--blue);
    transform: translateY(-3px);
}

.suggestion-list img {
    width: 20px;
    height: 20px;
    display: block;
}

/* ======================================
   OPIS NARZĘDZIA
====================================== */

.info-section {
    margin-top: 32px;
    padding: 24px 0 8px;
    color: var(--light);
}

.info-section h2 {
    margin: 0 0 14px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
}

.info-section p {
    margin: 0 0 16px;
    color: var(--light);
    font-size: 15px;
    line-height: 1.65;
}

.info-section p:last-child {
    margin-bottom: 0;
}

/* ======================================
   MOBILE
====================================== */

@media (max-width: 600px) {

    .tool-container {
        padding: 20px 16px;
    }

    .tool-title h1 {
        font-size: 28px;
    }

    .tool-title {
        gap: 12px;
    }

    .tool-icon {
        width: 52px;
        height: 52px;
        flex-shrink: 0;
    }

    .tool-tabs {
        gap: 8px;
    }

    .tab {
        width: 100%;
        height: 48px;
    }

    .calculator-card {
        padding: 22px 18px;
    }

    .result-number {
        font-size: 32px;
    }

}