/* === Tactical Military Theme Variables & Custom Properties === */
:root {
    --color-primary: #556B2F;
    /* Dark Olive Green */
    --color-primary-dark: #3E4E20;
    --color-bg-dark: #121212;
    --color-bg-light: #1E1E1E;
    --color-accent: #DAA520;
    /* Goldenrod/Brass */
    --color-text-main: #E0E0E0;
    --color-text-muted: #9E9E9E;
    --color-error: #D32F2F;
    --color-success: #388E3C;
    --color-panel: #242424;
    --color-border: #333333;

    --font-heading: 'Teko', sans-serif;
    --font-body: 'Share Tech Mono', monospace;

    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 15px rgba(85, 107, 47, 0.5);

    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;

    --transition: 0.3s ease-in-out;
}

/* === Reset & Base === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg-dark);
    line-height: 1.5;
    background-image: radial-gradient(circle at center, var(--color-bg-light) 0%, var(--color-bg-dark) 100%);
    transition: background-color var(--transition), color var(--transition), background-image var(--transition);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

/* === Typography === */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.section__title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-accent);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    position: relative;
}

.section__title--left {
    text-align: left;
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-primary);
    margin: 10px auto 0;
}

.section__title--left::after {
    margin: 10px 0 0;
}

/* === BEM: Header === */
.header {
    background-color: rgba(18, 18, 18, 0.95);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
    border-bottom: 2px solid var(--color-primary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-weight: 700;
    font-size: 2.2rem;
    color: var(--color-text-main);
}

.header__logo a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
}

.header__logo-icon {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

.header__logo span {
    color: var(--color-primary);
}

/* === BEM: Navigation === */
.nav__list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav__link {
    font-weight: 600;
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    transition: color var(--transition);
}

.nav__link:hover {
    color: var(--color-accent);
}

.nav__link--primary {
    background-color: var(--color-primary);
    color: var(--color-bg-dark);
    padding: 0.4rem 1.2rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-primary-dark);
}

.nav__link--primary:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
}

/* === BEM: Buttons === */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.4rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-text-main);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-primary-dark);
}

.btn--primary:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
    box-shadow: var(--shadow-glow);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn--outline:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
}

.btn--small {
    padding: 0.4rem 0.8rem;
    font-size: 1.1rem;
}

.btn--full {
    width: 100%;
}

/* === BEM: Hero Section === */
.hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.hero__video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 18, 18, 0.4), rgba(18, 18, 18, 0.9));
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero__title {
    font-size: 4.5rem;
    color: var(--color-text-main);
    margin-bottom: 1rem;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.8);
    line-height: 1;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
    letter-spacing: 2px;
}

/* === BEM: Database Grid (CSS Grid) === */
.database__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.gun-card {
    background-color: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition);
}

.gun-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

.gun-card__img-container {
    height: 200px;
    overflow: hidden;
    border-bottom: 1px solid var(--color-border);
    background-color: #000;
    cursor: pointer;
}

.gun-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: opacity var(--transition), transform var(--transition);
}

.gun-card:hover .gun-card__img {
    opacity: 1;
    transform: scale(1.03);
}

.gun-card__content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.gun-card__title {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
}

.gun-card__details {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-main);
    transition: max-height var(--transition), opacity var(--transition);
    max-height: 500px;
    opacity: 1;
    overflow: hidden;
}

.plan-card__details--hidden {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

.gun-card__details ul {
    list-style: none;
    margin-bottom: 1rem;
}

.gun-card__details li {
    margin-bottom: 0.3rem;
    border-bottom: 1px dashed var(--color-border);
    padding-bottom: 0.2rem;
}

.gun-card__details strong {
    color: var(--color-primary);
}

/* === BEM: Lightbox === */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity var(--transition);
}

.lightbox--hidden {
    opacity: 0;
    pointer-events: none;
}

.lightbox__content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    border: 2px solid var(--color-primary);
    box-shadow: 0 0 30px rgba(85, 107, 47, 0.4);
}

.lightbox__image {
    max-width: 100%;
    max-height: 90vh;
    display: block;
}

.lightbox__close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: var(--color-primary);
    font-size: 3rem;
    cursor: pointer;
    line-height: 1;
}

.lightbox__close:hover {
    color: var(--color-accent);
}

/* === BEM: Contact Form (Flexbox Layout) === */
.contact__container {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
    justify-content: space-between;
    align-items: center;
}

.contact__info {
    flex: 1;
    min-width: 300px;
}

.contact__text {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    border-left: 4px solid var(--color-primary);
    padding-left: 1rem;
    background-color: rgba(255, 255, 255, 0.02);
    padding: 1rem;
}

.form {
    flex: 1;
    min-width: 300px;
    background-color: var(--color-panel);
    padding: 2.5rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    position: relative;
}

.form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-primary);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-primary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.form__input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--color-bg-dark);
    color: var(--color-text-main);
    transition: border-color var(--transition);
}

.form__input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form__input--error {
    border-color: var(--color-error) !important;
    background-color: rgba(211, 47, 47, 0.1);
}

.form__error {
    display: block;
    color: var(--color-error);
    font-size: 0.85rem;
    margin-top: 0.4rem;
    opacity: 0;
    height: 0;
    transition: opacity var(--transition);
}

.form__error--visible {
    opacity: 1;
    height: auto;
}

.form__success {
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: rgba(56, 142, 60, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
    text-align: center;
    font-weight: 600;
}

.form__success--hidden {
    display: none;
}

/* === BEM: Footer === */
.footer {
    background-color: var(--color-panel);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.footer__text {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* === Media Queries === */
@media (max-width: 768px) {
    .header__container {
        flex-direction: column;
        gap: 1rem;
    }

    .hero__title {
        font-size: 3rem;
    }

    .contact__container {
        flex-direction: column;
        gap: 2rem;
    }
}

/* === BEM: Detail Page === */
.detail-section {
    padding: 4rem 2rem;
}

.detail-layout {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    background-color: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

@media (min-width: 900px) {
    .detail-layout {
        flex-direction: row;
        align-items: flex-start;
        padding: 3rem;
    }
}

.detail-layout__img-container {
    flex: 1;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: #000;
}

.detail-layout__img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.detail-layout__info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.detail-layout__title {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 0.5rem;
}

.detail-layout__specs {
    list-style: none;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.detail-layout__specs li {
    margin-bottom: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed var(--color-border);
}

.detail-layout__specs strong {
    color: var(--color-primary);
    display: inline-block;
    width: 120px;
}

.detail-layout__desc {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-text-main);
    margin-bottom: 2.5rem;
}

/* === BEM: Training Plans (CSS Grid) === */
.plans__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    align-items: stretch;
}

.plan-card {
    background-color: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--color-primary);
}

.plan-card--popular {
    border: 2px solid var(--color-accent);
}

.plan-card__badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
    font-weight: bold;
    border-radius: var(--radius-sm);
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.plan-card__img-container {
    height: 250px;
    width: 100%;
    overflow: hidden;
    background-color: #000;
    border-bottom: 2px solid var(--color-primary);
}

.plan-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: transform var(--transition), opacity var(--transition);
}

.plan-card:hover .plan-card__img {
    transform: scale(1.05);
    opacity: 1;
}

.plan-card__content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: 2.5rem;
}

.plan-card__header {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1.5rem;
}

.plan-card__title {
    font-size: 2.2rem;
    color: var(--color-text-main);
    margin-bottom: 0.5rem;
}

.plan-card__price {
    font-size: 3rem;
    font-weight: bold;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.plan-card__price span {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    font-family: var(--font-body);
}

.plan-card__body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.plan-card__features {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.plan-card__feature {
    margin-bottom: 1.2rem;
    position: relative;
    padding-left: 1.8rem;
    color: var(--color-text-main);
    font-size: 1rem;
}

.plan-card__feature::before {
    content: '►';
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-size: 0.9rem;
    top: 4px;
}

/* === Light Mode Overrides === */
body.light-mode {
    --color-primary: #3E4E20;
    --color-primary-dark: #2A3614;
    --color-bg-dark: #f0f0f0;
    --color-bg-light: #ffffff;
    --color-accent: #B8860B;
    --color-text-main: #212121;
    --color-text-muted: #616161;
    --color-panel: #e0e0e0;
    --color-border: #bdbdbd;
}

body.light-mode .header {
    background-color: rgba(240, 240, 240, 0.95);
}

body.light-mode .hero__overlay {
    background: linear-gradient(rgba(240, 240, 240, 0.4), rgba(240, 240, 240, 0.9));
}

body.light-mode .header__logo-icon {
    filter: invert(1) hue-rotate(180deg) brightness(0.5);
}

body.light-mode .gun-card__img-container,
body.light-mode .plan-card__img-container,
body.light-mode .detail-layout__img-container {
    background-color: #d0d0d0;
}